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-rw-r--r--util-src/Makefile47
-rw-r--r--util-src/crand.c118
-rw-r--r--util-src/encodings.c347
-rw-r--r--util-src/hashes.c71
-rw-r--r--util-src/net.c73
-rw-r--r--util-src/pposix.c714
-rw-r--r--util-src/ringbuffer.c214
-rw-r--r--util-src/signal.c502
-rw-r--r--util-src/table.c33
-rw-r--r--util-src/windows.c63
10 files changed, 1383 insertions, 799 deletions
diff --git a/util-src/Makefile b/util-src/Makefile
index 3a1ba3f2..f18d5a80 100644
--- a/util-src/Makefile
+++ b/util-src/Makefile
@@ -1,41 +1,34 @@
include ../config.unix
-LUA_SUFFIX?=5.1
-LUA_INCDIR?=/usr/include/lua$(LUA_SUFFIX)
-LUA_LIB?=lua$(LUA_SUFFIX)
-IDN_LIB?=idn
-OPENSSL_LIB?=crypto
-CC?=gcc
-CXX?=g++
-LD?=gcc
-CFLAGS+=-ggdb
+CFLAGS+=-I$(LUA_INCDIR)
+
+INSTALL_DATA=install -m644
+TARGET?=../util/
+
+ALL=encodings.so hashes.so net.so pposix.so signal.so table.so ringbuffer.so
+
+ifdef RANDOM
+ALL+=crand.so
+endif
.PHONY: all install clean
.SUFFIXES: .c .o .so
-all: encodings.so hashes.so net.so pposix.so signal.so
+all: $(ALL)
-install: encodings.so hashes.so net.so pposix.so signal.so
- install *.so ../util/
+install: $(ALL)
+ $(INSTALL_DATA) $^ $(TARGET)
clean:
- rm -f *.o
- rm -f *.so
- rm -f ../util/*.so
-
-encodings.so: encodings.o
- MACOSX_DEPLOYMENT_TARGET="10.3"; export MACOSX_DEPLOYMENT_TARGET;
- $(CC) -o $@ $< $(LDFLAGS) $(IDNA_LIBS)
+ rm -f $(ALL) $(patsubst %.so,%.o,$(ALL))
-hashes.so: hashes.o
- MACOSX_DEPLOYMENT_TARGET="10.3"; export MACOSX_DEPLOYMENT_TARGET;
- $(CC) -o $@ $< $(LDFLAGS) -l$(OPENSSL_LIB)
+encodings.so: LDLIBS+=$(IDNA_LIBS)
-.c.o:
- $(CC) $(CFLAGS) -I$(LUA_INCDIR) -c -o $@ $<
+hashes.so: LDLIBS+=$(OPENSSL_LIBS)
-.o.so:
- MACOSX_DEPLOYMENT_TARGET="10.3"; export MACOSX_DEPLOYMENT_TARGET;
- $(LD) -o $@ $< $(LDFLAGS)
+crand.o: CFLAGS+=-DWITH_$(RANDOM)
+crand.so: LDLIBS+=$(RANDOM_LIBS)
+%.so: %.o
+ $(LD) $(LDFLAGS) -o $@ $^ $(LDLIBS)
diff --git a/util-src/crand.c b/util-src/crand.c
new file mode 100644
index 00000000..d4b84327
--- /dev/null
+++ b/util-src/crand.c
@@ -0,0 +1,118 @@
+/* Prosody IM
+-- Copyright (C) 2008-2017 Matthew Wild
+-- Copyright (C) 2008-2017 Waqas Hussain
+-- Copyright (C) 2016-2017 Kim Alvefur
+--
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+*/
+
+/*
+* crand.c
+* C PRNG interface
+*
+* The purpose of this module is to provide access to a PRNG in
+* environments without /dev/urandom
+*
+* Caution! This has not been extensively tested.
+*
+*/
+
+#define _DEFAULT_SOURCE
+
+#include "lualib.h"
+#include "lauxlib.h"
+
+#include <string.h>
+#include <errno.h>
+
+#if defined(WITH_GETRANDOM)
+
+#if ! __GLIBC_PREREQ(2,25)
+#include <unistd.h>
+#include <sys/syscall.h>
+
+#ifndef SYS_getrandom
+#error getrandom() requires Linux 3.17 or later
+#endif
+
+/* This wasn't present before glibc 2.25 */
+int getrandom(void *buf, size_t buflen, unsigned int flags) {
+ return syscall(SYS_getrandom, buf, buflen, flags);
+}
+#else
+#include <sys/random.h>
+#endif
+
+#elif defined(WITH_ARC4RANDOM)
+#include <stdlib.h>
+#elif defined(WITH_OPENSSL)
+#include <openssl/rand.h>
+#else
+#error util.crand compiled without a random source
+#endif
+
+int Lrandom(lua_State *L) {
+ int ret = 0;
+ size_t len = (size_t)luaL_checkinteger(L, 1);
+ void *buf = lua_newuserdata(L, len);
+
+#if defined(WITH_GETRANDOM)
+ /*
+ * This acts like a read from /dev/urandom with the exception that it
+ * *does* block if the entropy pool is not yet initialized.
+ */
+ ret = getrandom(buf, len, 0);
+
+ if(ret < 0) {
+ lua_pushstring(L, strerror(errno));
+ return lua_error(L);
+ }
+
+#elif defined(WITH_ARC4RANDOM)
+ arc4random_buf(buf, len);
+ ret = len;
+#elif defined(WITH_OPENSSL)
+ if(!RAND_status()) {
+ lua_pushliteral(L, "OpenSSL PRNG not seeded");
+ return lua_error(L);
+ }
+
+ ret = RAND_bytes(buf, len);
+
+ if(ret == 1) {
+ ret = len;
+ } else {
+ /* TODO ERR_get_error() */
+ lua_pushstring(L, "RAND_bytes() failed");
+ return lua_error(L);
+ }
+
+#endif
+
+ lua_pushlstring(L, buf, ret);
+ return 1;
+}
+
+int luaopen_util_crand(lua_State *L) {
+#if (LUA_VERSION_NUM > 501)
+ luaL_checkversion(L);
+#endif
+
+ lua_createtable(L, 0, 2);
+ lua_pushcfunction(L, Lrandom);
+ lua_setfield(L, -2, "bytes");
+
+#if defined(WITH_GETRANDOM)
+ lua_pushstring(L, "Linux");
+#elif defined(WITH_ARC4RANDOM)
+ lua_pushstring(L, "arc4random()");
+#elif defined(WITH_OPENSSL)
+ lua_pushstring(L, "OpenSSL");
+#endif
+ lua_setfield(L, -2, "_source");
+
+ return 1;
+}
+
diff --git a/util-src/encodings.c b/util-src/encodings.c
index 91826ca4..465819d5 100644
--- a/util-src/encodings.c
+++ b/util-src/encodings.c
@@ -2,7 +2,7 @@
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
-- Copyright (C) 1994-2015 Lua.org, PUC-Rio.
---
+--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
@@ -21,97 +21,140 @@
#include "lua.h"
#include "lauxlib.h"
+#if (LUA_VERSION_NUM == 501)
+#define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R)
+#endif
+
/***************** BASE64 *****************/
-static const char code[]=
-"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+static const char code[] =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-static void base64_encode(luaL_Buffer *b, unsigned int c1, unsigned int c2, unsigned int c3, int n)
-{
- unsigned long tuple=c3+256UL*(c2+256UL*c1);
+static void base64_encode(luaL_Buffer *b, unsigned int c1, unsigned int c2, unsigned int c3, int n) {
+ unsigned long tuple = c3 + 256UL * (c2 + 256UL * c1);
int i;
char s[4];
- for (i=0; i<4; i++) {
- s[3-i] = code[tuple % 64];
+
+ for(i = 0; i < 4; i++) {
+ s[3 - i] = code[tuple % 64];
tuple /= 64;
}
- for (i=n+1; i<4; i++) s[i]='=';
- luaL_addlstring(b,s,4);
+
+ for(i = n + 1; i < 4; i++) {
+ s[i] = '=';
+ }
+
+ luaL_addlstring(b, s, 4);
}
-static int Lbase64_encode(lua_State *L) /** encode(s) */
-{
+static int Lbase64_encode(lua_State *L) { /** encode(s) */
size_t l;
- const unsigned char *s=(const unsigned char*)luaL_checklstring(L,1,&l);
+ const unsigned char *s = (const unsigned char *)luaL_checklstring(L, 1, &l);
luaL_Buffer b;
int n;
- luaL_buffinit(L,&b);
- for (n=l/3; n--; s+=3) base64_encode(&b,s[0],s[1],s[2],3);
- switch (l%3)
- {
- case 1: base64_encode(&b,s[0],0,0,1); break;
- case 2: base64_encode(&b,s[0],s[1],0,2); break;
+ luaL_buffinit(L, &b);
+
+ for(n = l / 3; n--; s += 3) {
+ base64_encode(&b, s[0], s[1], s[2], 3);
+ }
+
+ switch(l % 3) {
+ case 1:
+ base64_encode(&b, s[0], 0, 0, 1);
+ break;
+
+ case 2:
+ base64_encode(&b, s[0], s[1], 0, 2);
+ break;
}
+
luaL_pushresult(&b);
return 1;
}
-static void base64_decode(luaL_Buffer *b, int c1, int c2, int c3, int c4, int n)
-{
- unsigned long tuple=c4+64L*(c3+64L*(c2+64L*c1));
+static void base64_decode(luaL_Buffer *b, int c1, int c2, int c3, int c4, int n) {
+ unsigned long tuple = c4 + 64L * (c3 + 64L * (c2 + 64L * c1));
char s[3];
- switch (--n)
- {
- case 3: s[2]=(char) tuple;
- case 2: s[1]=(char) (tuple >> 8);
- case 1: s[0]=(char) (tuple >> 16);
+
+ switch(--n) {
+ case 3:
+ s[2] = (char) tuple;
+
+ case 2:
+ s[1] = (char)(tuple >> 8);
+
+ case 1:
+ s[0] = (char)(tuple >> 16);
}
- luaL_addlstring(b,s,n);
+
+ luaL_addlstring(b, s, n);
}
-static int Lbase64_decode(lua_State *L) /** decode(s) */
-{
+static int Lbase64_decode(lua_State *L) { /** decode(s) */
size_t l;
- const char *s=luaL_checklstring(L,1,&l);
+ const char *s = luaL_checklstring(L, 1, &l);
luaL_Buffer b;
- int n=0;
+ int n = 0;
char t[4];
- luaL_buffinit(L,&b);
- for (;;)
- {
- int c=*s++;
- switch (c)
- {
- const char *p;
+ luaL_buffinit(L, &b);
+
+ for(;;) {
+ int c = *s++;
+
+ switch(c) {
+ const char *p;
+
default:
- p=strchr(code,c); if (p==NULL) return 0;
- t[n++]= (char) (p-code);
- if (n==4)
- {
- base64_decode(&b,t[0],t[1],t[2],t[3],4);
- n=0;
+ p = strchr(code, c);
+
+ if(p == NULL) {
+ return 0;
+ }
+
+ t[n++] = (char)(p - code);
+
+ if(n == 4) {
+ base64_decode(&b, t[0], t[1], t[2], t[3], 4);
+ n = 0;
}
+
break;
+
case '=':
- switch (n)
- {
- case 1: base64_decode(&b,t[0],0,0,0,1); break;
- case 2: base64_decode(&b,t[0],t[1],0,0,2); break;
- case 3: base64_decode(&b,t[0],t[1],t[2],0,3); break;
+
+ switch(n) {
+ case 1:
+ base64_decode(&b, t[0], 0, 0, 0, 1);
+ break;
+
+ case 2:
+ base64_decode(&b, t[0], t[1], 0, 0, 2);
+ break;
+
+ case 3:
+ base64_decode(&b, t[0], t[1], t[2], 0, 3);
+ break;
}
- n=0;
+
+ n = 0;
break;
+
case 0:
luaL_pushresult(&b);
return 1;
- case '\n': case '\r': case '\t': case ' ': case '\f': case '\b':
+
+ case '\n':
+ case '\r':
+ case '\t':
+ case ' ':
+ case '\f':
+ case '\b':
break;
}
}
}
-static const luaL_Reg Reg_base64[] =
-{
+static const luaL_Reg Reg_base64[] = {
{ "encode", Lbase64_encode },
{ "decode", Lbase64_decode },
{ NULL, NULL }
@@ -129,28 +172,41 @@ static const luaL_Reg Reg_base64[] =
/*
* Decode one UTF-8 sequence, returning NULL if byte sequence is invalid.
*/
-static const char *utf8_decode (const char *o, int *val) {
- static unsigned int limits[] = {0xFF, 0x7F, 0x7FF, 0xFFFF};
+static const char *utf8_decode(const char *o, int *val) {
+ static const unsigned int limits[] = {0xFF, 0x7F, 0x7FF, 0xFFFF};
const unsigned char *s = (const unsigned char *)o;
unsigned int c = s[0];
unsigned int res = 0; /* final result */
- if (c < 0x80) /* ascii? */
+
+ if(c < 0x80) { /* ascii? */
res = c;
- else {
+ } else {
int count = 0; /* to count number of continuation bytes */
- while (c & 0x40) { /* still have continuation bytes? */
+
+ while(c & 0x40) { /* still have continuation bytes? */
int cc = s[++count]; /* read next byte */
- if ((cc & 0xC0) != 0x80) /* not a continuation byte? */
- return NULL; /* invalid byte sequence */
+
+ if((cc & 0xC0) != 0x80) { /* not a continuation byte? */
+ return NULL; /* invalid byte sequence */
+ }
+
res = (res << 6) | (cc & 0x3F); /* add lower 6 bits from cont. byte */
c <<= 1; /* to test next bit */
}
+
res |= ((c & 0x7F) << (count * 5)); /* add first byte */
- if (count > 3 || res > MAXUNICODE || res <= limits[count] || (0xd800 <= res && res <= 0xdfff) )
- return NULL; /* invalid byte sequence */
+
+ if(count > 3 || res > MAXUNICODE || res <= limits[count] || (0xd800 <= res && res <= 0xdfff)) {
+ return NULL; /* invalid byte sequence */
+ }
+
s += count; /* skip continuation bytes read */
}
- if (val) *val = res;
+
+ if(val) {
+ *val = res;
+ }
+
return (const char *)s + 1; /* +1 to include first byte */
}
@@ -158,20 +214,25 @@ static const char *utf8_decode (const char *o, int *val) {
* Check that a string is valid UTF-8
* Returns NULL if not
*/
-const char* check_utf8 (lua_State *L, int idx, size_t *l) {
+const char *check_utf8(lua_State *L, int idx, size_t *l) {
size_t pos, len;
const char *s = luaL_checklstring(L, 1, &len);
pos = 0;
- while (pos <= len) {
+
+ while(pos <= len) {
const char *s1 = utf8_decode(s + pos, NULL);
- if (s1 == NULL) { /* conversion error? */
+
+ if(s1 == NULL) { /* conversion error? */
return NULL;
}
+
pos = s1 - s;
}
+
if(l != NULL) {
*l = len;
}
+
return s;
}
@@ -182,23 +243,23 @@ static int Lutf8_valid(lua_State *L) {
static int Lutf8_length(lua_State *L) {
size_t len;
+
if(!check_utf8(L, 1, &len)) {
lua_pushnil(L);
lua_pushliteral(L, "invalid utf8");
return 2;
}
+
lua_pushinteger(L, len);
return 1;
}
-static const luaL_Reg Reg_utf8[] =
-{
+static const luaL_Reg Reg_utf8[] = {
{ "valid", Lutf8_valid },
{ "length", Lutf8_length },
{ NULL, NULL }
};
-
/***************** STRINGPREP *****************/
#ifdef USE_STRINGPREP_ICU
@@ -206,8 +267,7 @@ static const luaL_Reg Reg_utf8[] =
#include <unicode/ustring.h>
#include <unicode/utrace.h>
-static int icu_stringprep_prep(lua_State *L, const UStringPrepProfile *profile)
-{
+static int icu_stringprep_prep(lua_State *L, const UStringPrepProfile *profile) {
size_t input_len;
int32_t unprepped_len, prepped_len, output_len;
const char *input;
@@ -215,52 +275,63 @@ static int icu_stringprep_prep(lua_State *L, const UStringPrepProfile *profile)
UChar unprepped[1024]; /* Temporary unicode buffer (1024 characters) */
UChar prepped[1024];
-
+
UErrorCode err = U_ZERO_ERROR;
if(!lua_isstring(L, 1)) {
lua_pushnil(L);
return 1;
}
+
input = lua_tolstring(L, 1, &input_len);
- if (input_len >= 1024) {
+
+ if(input_len >= 1024) {
lua_pushnil(L);
return 1;
}
+
u_strFromUTF8(unprepped, 1024, &unprepped_len, input, input_len, &err);
- if (U_FAILURE(err)) {
+
+ if(U_FAILURE(err)) {
lua_pushnil(L);
return 1;
}
+
prepped_len = usprep_prepare(profile, unprepped, unprepped_len, prepped, 1024, 0, NULL, &err);
- if (U_FAILURE(err)) {
+
+ if(U_FAILURE(err)) {
lua_pushnil(L);
return 1;
} else {
u_strToUTF8(output, 1024, &output_len, prepped, prepped_len, &err);
- if (U_SUCCESS(err) && output_len < 1024)
+
+ if(U_SUCCESS(err) && output_len < 1024) {
lua_pushlstring(L, output, output_len);
- else
+ } else {
lua_pushnil(L);
+ }
+
return 1;
}
}
UStringPrepProfile *icu_nameprep;
UStringPrepProfile *icu_nodeprep;
-UStringPrepProfile *icu_resourceprep;
+UStringPrepProfile *icu_resourceprep;
UStringPrepProfile *icu_saslprep;
/* initialize global ICU stringprep profiles */
-void init_icu()
-{
+void init_icu() {
UErrorCode err = U_ZERO_ERROR;
utrace_setLevel(UTRACE_VERBOSE);
icu_nameprep = usprep_openByType(USPREP_RFC3491_NAMEPREP, &err);
icu_nodeprep = usprep_openByType(USPREP_RFC3920_NODEPREP, &err);
icu_resourceprep = usprep_openByType(USPREP_RFC3920_RESOURCEPREP, &err);
icu_saslprep = usprep_openByType(USPREP_RFC4013_SASLPREP, &err);
- if (U_FAILURE(err)) fprintf(stderr, "[c] util.encodings: error: %s\n", u_errorName((UErrorCode)err));
+
+ if(U_FAILURE(err)) {
+ fprintf(stderr, "[c] util.encodings: error: %s\n", u_errorName((UErrorCode)err));
+ }
}
#define MAKE_PREP_FUNC(myFunc, prep) \
@@ -271,8 +342,7 @@ MAKE_PREP_FUNC(Lstringprep_nodeprep, icu_nodeprep) /** stringprep.nodeprep(s) *
MAKE_PREP_FUNC(Lstringprep_resourceprep, icu_resourceprep) /** stringprep.resourceprep(s) */
MAKE_PREP_FUNC(Lstringprep_saslprep, icu_saslprep) /** stringprep.saslprep(s) */
-static const luaL_Reg Reg_stringprep[] =
-{
+static const luaL_Reg Reg_stringprep[] = {
{ "nameprep", Lstringprep_nameprep },
{ "nodeprep", Lstringprep_nodeprep },
{ "resourceprep", Lstringprep_resourceprep },
@@ -285,24 +355,28 @@ static const luaL_Reg Reg_stringprep[] =
#include <stringprep.h>
-static int stringprep_prep(lua_State *L, const Stringprep_profile *profile)
-{
+static int stringprep_prep(lua_State *L, const Stringprep_profile *profile) {
size_t len;
const char *s;
char string[1024];
int ret;
+
if(!lua_isstring(L, 1)) {
lua_pushnil(L);
return 1;
}
+
s = check_utf8(L, 1, &len);
- if (s == NULL || len >= 1024 || len != strlen(s)) {
+
+ if(s == NULL || len >= 1024 || len != strlen(s)) {
lua_pushnil(L);
return 1; /* TODO return error message */
}
+
strcpy(string, s);
ret = stringprep(string, 1024, (Stringprep_profile_flags)0, profile);
- if (ret == STRINGPREP_OK) {
+
+ if(ret == STRINGPREP_OK) {
lua_pushstring(L, string);
return 1;
} else {
@@ -319,8 +393,7 @@ MAKE_PREP_FUNC(Lstringprep_nodeprep, stringprep_xmpp_nodeprep) /** stringprep.n
MAKE_PREP_FUNC(Lstringprep_resourceprep, stringprep_xmpp_resourceprep) /** stringprep.resourceprep(s) */
MAKE_PREP_FUNC(Lstringprep_saslprep, stringprep_saslprep) /** stringprep.saslprep(s) */
-static const luaL_Reg Reg_stringprep[] =
-{
+static const luaL_Reg Reg_stringprep[] = {
{ "nameprep", Lstringprep_nameprep },
{ "nodeprep", Lstringprep_nodeprep },
{ "resourceprep", Lstringprep_resourceprep },
@@ -334,8 +407,7 @@ static const luaL_Reg Reg_stringprep[] =
#include <unicode/ustdio.h>
#include <unicode/uidna.h>
/* IDNA2003 or IDNA2008 ? ? ? */
-static int Lidna_to_ascii(lua_State *L) /** idna.to_ascii(s) */
-{
+static int Lidna_to_ascii(lua_State *L) { /** idna.to_ascii(s) */
size_t len;
int32_t ulen, dest_len, output_len;
const char *s = luaL_checklstring(L, 1, &len);
@@ -345,27 +417,31 @@ static int Lidna_to_ascii(lua_State *L) /** idna.to_ascii(s) */
char output[1024];
u_strFromUTF8(ustr, 1024, &ulen, s, len, &err);
- if (U_FAILURE(err)) {
+
+ if(U_FAILURE(err)) {
lua_pushnil(L);
return 1;
}
dest_len = uidna_IDNToASCII(ustr, ulen, dest, 1024, UIDNA_USE_STD3_RULES, NULL, &err);
- if (U_FAILURE(err)) {
+
+ if(U_FAILURE(err)) {
lua_pushnil(L);
return 1;
} else {
u_strToUTF8(output, 1024, &output_len, dest, dest_len, &err);
- if (U_SUCCESS(err) && output_len < 1024)
+
+ if(U_SUCCESS(err) && output_len < 1024) {
lua_pushlstring(L, output, output_len);
- else
+ } else {
lua_pushnil(L);
+ }
+
return 1;
}
}
-static int Lidna_to_unicode(lua_State *L) /** idna.to_unicode(s) */
-{
+static int Lidna_to_unicode(lua_State *L) { /** idna.to_unicode(s) */
size_t len;
int32_t ulen, dest_len, output_len;
const char *s = luaL_checklstring(L, 1, &len);
@@ -375,21 +451,26 @@ static int Lidna_to_unicode(lua_State *L) /** idna.to_unicode(s) */
char output[1024];
u_strFromUTF8(ustr, 1024, &ulen, s, len, &err);
- if (U_FAILURE(err)) {
+
+ if(U_FAILURE(err)) {
lua_pushnil(L);
return 1;
}
dest_len = uidna_IDNToUnicode(ustr, ulen, dest, 1024, UIDNA_USE_STD3_RULES, NULL, &err);
- if (U_FAILURE(err)) {
+
+ if(U_FAILURE(err)) {
lua_pushnil(L);
return 1;
} else {
u_strToUTF8(output, 1024, &output_len, dest, dest_len, &err);
- if (U_SUCCESS(err) && output_len < 1024)
+
+ if(U_SUCCESS(err) && output_len < 1024) {
lua_pushlstring(L, output, output_len);
- else
+ } else {
lua_pushnil(L);
+ }
+
return 1;
}
}
@@ -400,17 +481,20 @@ static int Lidna_to_unicode(lua_State *L) /** idna.to_unicode(s) */
#include <idna.h>
#include <idn-free.h>
-static int Lidna_to_ascii(lua_State *L) /** idna.to_ascii(s) */
-{
+static int Lidna_to_ascii(lua_State *L) { /** idna.to_ascii(s) */
size_t len;
const char *s = check_utf8(L, 1, &len);
- if (s == NULL || len != strlen(s)) {
+ char *output = NULL;
+ int ret;
+
+ if(s == NULL || len != strlen(s)) {
lua_pushnil(L);
return 1; /* TODO return error message */
}
- char* output = NULL;
- int ret = idna_to_ascii_8z(s, &output, IDNA_USE_STD3_ASCII_RULES);
- if (ret == IDNA_SUCCESS) {
+
+ ret = idna_to_ascii_8z(s, &output, IDNA_USE_STD3_ASCII_RULES);
+
+ if(ret == IDNA_SUCCESS) {
lua_pushstring(L, output);
idn_free(output);
return 1;
@@ -421,13 +505,13 @@ static int Lidna_to_ascii(lua_State *L) /** idna.to_ascii(s) */
}
}
-static int Lidna_to_unicode(lua_State *L) /** idna.to_unicode(s) */
-{
+static int Lidna_to_unicode(lua_State *L) { /** idna.to_unicode(s) */
size_t len;
const char *s = luaL_checklstring(L, 1, &len);
- char* output = NULL;
+ char *output = NULL;
int ret = idna_to_unicode_8z8z(s, &output, 0);
- if (ret == IDNA_SUCCESS) {
+
+ if(ret == IDNA_SUCCESS) {
lua_pushstring(L, output);
idn_free(output);
return 1;
@@ -439,8 +523,7 @@ static int Lidna_to_unicode(lua_State *L) /** idna.to_unicode(s) */
}
#endif
-static const luaL_Reg Reg_idna[] =
-{
+static const luaL_Reg Reg_idna[] = {
{ "to_ascii", Lidna_to_ascii },
{ "to_unicode", Lidna_to_unicode },
{ NULL, NULL }
@@ -448,40 +531,32 @@ static const luaL_Reg Reg_idna[] =
/***************** end *****************/
-static const luaL_Reg Reg[] =
-{
- { NULL, NULL }
-};
-
-LUALIB_API int luaopen_util_encodings(lua_State *L)
-{
+LUALIB_API int luaopen_util_encodings(lua_State *L) {
+#if (LUA_VERSION_NUM > 501)
+ luaL_checkversion(L);
+#endif
#ifdef USE_STRINGPREP_ICU
init_icu();
#endif
- luaL_register(L, "encodings", Reg);
+ lua_newtable(L);
- lua_pushliteral(L, "base64");
lua_newtable(L);
- luaL_register(L, NULL, Reg_base64);
- lua_settable(L,-3);
+ luaL_setfuncs(L, Reg_base64, 0);
+ lua_setfield(L, -2, "base64");
- lua_pushliteral(L, "stringprep");
lua_newtable(L);
- luaL_register(L, NULL, Reg_stringprep);
- lua_settable(L,-3);
+ luaL_setfuncs(L, Reg_stringprep, 0);
+ lua_setfield(L, -2, "stringprep");
- lua_pushliteral(L, "idna");
lua_newtable(L);
- luaL_register(L, NULL, Reg_idna);
- lua_settable(L,-3);
+ luaL_setfuncs(L, Reg_idna, 0);
+ lua_setfield(L, -2, "idna");
- lua_pushliteral(L, "utf8");
lua_newtable(L);
- luaL_register(L, NULL, Reg_utf8);
- lua_settable(L, -3);
+ luaL_setfuncs(L, Reg_utf8, 0);
+ lua_setfield(L, -2, "utf8");
- lua_pushliteral(L, "version"); /** version */
lua_pushliteral(L, "-3.14");
- lua_settable(L,-3);
+ lua_setfield(L, -2, "version");
return 1;
}
diff --git a/util-src/hashes.c b/util-src/hashes.c
index 33041e83..82f5876e 100644
--- a/util-src/hashes.c
+++ b/util-src/hashes.c
@@ -1,13 +1,12 @@
/* Prosody IM
-- Copyright (C) 2009-2010 Matthew Wild
-- Copyright (C) 2009-2010 Waqas Hussain
---
+--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
*/
-
/*
* hashes.c
* Lua library for sha1, sha256 and md5 hashes
@@ -27,15 +26,20 @@ typedef unsigned __int32 uint32_t;
#include <openssl/sha.h>
#include <openssl/md5.h>
+#if (LUA_VERSION_NUM == 501)
+#define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R)
+#endif
+
#define HMAC_IPAD 0x36363636
#define HMAC_OPAD 0x5c5c5c5c
const char *hex_tab = "0123456789abcdef";
void toHex(const unsigned char *in, int length, unsigned char *out) {
int i;
- for (i = 0; i < length; i++) {
- out[i*2] = hex_tab[(in[i] >> 4) & 0xF];
- out[i*2+1] = hex_tab[(in[i]) & 0xF];
+
+ for(i = 0; i < length; i++) {
+ out[i * 2] = hex_tab[(in[i] >> 4) & 0xF];
+ out[i * 2 + 1] = hex_tab[(in[i]) & 0xF];
}
}
@@ -63,16 +67,15 @@ MAKE_HASH_FUNCTION(Lsha512, SHA512, SHA512_DIGEST_LENGTH)
MAKE_HASH_FUNCTION(Lmd5, MD5, MD5_DIGEST_LENGTH)
struct hash_desc {
- int (*Init)(void*);
- int (*Update)(void*, const void *, size_t);
- int (*Final)(unsigned char*, void*);
+ int (*Init)(void *);
+ int (*Update)(void *, const void *, size_t);
+ int (*Final)(unsigned char *, void *);
size_t digestLength;
void *ctx, *ctxo;
};
static void hmac(struct hash_desc *desc, const char *key, size_t key_len,
- const char *msg, size_t msg_len, unsigned char *result)
-{
+ const char *msg, size_t msg_len, unsigned char *result) {
union xory {
unsigned char bytes[64];
uint32_t quadbytes[16];
@@ -82,11 +85,11 @@ static void hmac(struct hash_desc *desc, const char *key, size_t key_len,
unsigned char hashedKey[64]; /* Maximum used digest length */
union xory k_ipad, k_opad;
- if (key_len > 64) {
+ if(key_len > 64) {
desc->Init(desc->ctx);
desc->Update(desc->ctx, key, key_len);
desc->Final(hashedKey, desc->ctx);
- key = (const char*)hashedKey;
+ key = (const char *)hashedKey;
key_len = desc->digestLength;
}
@@ -94,7 +97,7 @@ static void hmac(struct hash_desc *desc, const char *key, size_t key_len,
memset(k_ipad.bytes + key_len, 0, 64 - key_len);
memcpy(k_opad.bytes, k_ipad.bytes, 64);
- for (i = 0; i < 16; i++) {
+ for(i = 0; i < 16; i++) {
k_ipad.quadbytes[i] ^= HMAC_IPAD;
k_opad.quadbytes[i] ^= HMAC_OPAD;
}
@@ -142,7 +145,7 @@ MAKE_HMAC_FUNCTION(Lhmac_md5, MD5, MD5_DIGEST_LENGTH, MD5_CTX)
static int LscramHi(lua_State *L) {
union xory {
unsigned char bytes[SHA_DIGEST_LENGTH];
- uint32_t quadbytes[SHA_DIGEST_LENGTH/4];
+ uint32_t quadbytes[SHA_DIGEST_LENGTH / 4];
};
int i;
SHA_CTX ctx, ctxo;
@@ -156,37 +159,43 @@ static int LscramHi(lua_State *L) {
char *salt2;
const int iter = luaL_checkinteger(L, 3);
- desc.Init = (int (*)(void*))SHA1_Init;
- desc.Update = (int (*)(void*, const void *, size_t))SHA1_Update;
- desc.Final = (int (*)(unsigned char*, void*))SHA1_Final;
+ desc.Init = (int (*)(void *))SHA1_Init;
+ desc.Update = (int (*)(void *, const void *, size_t))SHA1_Update;
+ desc.Final = (int (*)(unsigned char *, void *))SHA1_Final;
desc.digestLength = SHA_DIGEST_LENGTH;
desc.ctx = &ctx;
desc.ctxo = &ctxo;
salt2 = malloc(salt_len + 4);
- if (salt2 == NULL)
- luaL_error(L, "Out of memory in scramHi");
+
+ if(salt2 == NULL) {
+ return luaL_error(L, "Out of memory in scramHi");
+ }
+
memcpy(salt2, salt, salt_len);
memcpy(salt2 + salt_len, "\0\0\0\1", 4);
hmac(&desc, str, str_len, salt2, salt_len + 4, Ust);
free(salt2);
memcpy(res.bytes, Ust, sizeof(res));
- for (i = 1; i < iter; i++) {
+
+ for(i = 1; i < iter; i++) {
int j;
- hmac(&desc, str, str_len, (char*)Ust, sizeof(Ust), Und.bytes);
- for (j = 0; j < SHA_DIGEST_LENGTH/4; j++)
+ hmac(&desc, str, str_len, (char *)Ust, sizeof(Ust), Und.bytes);
+
+ for(j = 0; j < SHA_DIGEST_LENGTH / 4; j++) {
res.quadbytes[j] ^= Und.quadbytes[j];
+ }
+
memcpy(Ust, Und.bytes, sizeof(Ust));
}
- lua_pushlstring(L, (char*)res.bytes, SHA_DIGEST_LENGTH);
+ lua_pushlstring(L, (char *)res.bytes, SHA_DIGEST_LENGTH);
return 1;
}
-static const luaL_Reg Reg[] =
-{
+static const luaL_Reg Reg[] = {
{ "sha1", Lsha1 },
{ "sha224", Lsha224 },
{ "sha256", Lsha256 },
@@ -201,11 +210,13 @@ static const luaL_Reg Reg[] =
{ NULL, NULL }
};
-LUALIB_API int luaopen_util_hashes(lua_State *L)
-{
- luaL_register(L, "hashes", Reg);
- lua_pushliteral(L, "version"); /** version */
+LUALIB_API int luaopen_util_hashes(lua_State *L) {
+#if (LUA_VERSION_NUM > 501)
+ luaL_checkversion(L);
+#endif
+ lua_newtable(L);
+ luaL_setfuncs(L, Reg, 0);;
lua_pushliteral(L, "-3.14");
- lua_settable(L,-3);
+ lua_setfield(L, -2, "version");
return 1;
}
diff --git a/util-src/net.c b/util-src/net.c
index e307c628..bb159d57 100644
--- a/util-src/net.c
+++ b/util-src/net.c
@@ -9,34 +9,38 @@
--
*/
+#define _GNU_SOURCE
#include <stddef.h>
#include <string.h>
#include <errno.h>
#ifndef _WIN32
- #include <sys/ioctl.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <net/if.h>
- #include <ifaddrs.h>
- #include <arpa/inet.h>
- #include <netinet/in.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <ifaddrs.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
#endif
#include <lua.h>
#include <lauxlib.h>
+#if (LUA_VERSION_NUM == 501)
+#define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R)
+#endif
+
/* Enumerate all locally configured IP addresses */
-const char * const type_strings[] = {
+const char *const type_strings[] = {
"both",
"ipv4",
"ipv6",
NULL
};
-static int lc_local_addresses(lua_State *L)
-{
+static int lc_local_addresses(lua_State *L) {
#ifndef _WIN32
/* Link-local IPv4 addresses; see RFC 3927 and RFC 5735 */
const long ip4_linklocal = htonl(0xa9fe0000); /* 169.254.0.0 */
@@ -50,68 +54,87 @@ static int lc_local_addresses(lua_State *L)
const char ipv6 = (type == 0 || type == 2);
#ifndef _WIN32
- if (getifaddrs(&addr) < 0) {
+
+ if(getifaddrs(&addr) < 0) {
lua_pushnil(L);
lua_pushfstring(L, "getifaddrs failed (%d): %s", errno,
- strerror(errno));
+ strerror(errno));
return 2;
}
+
#endif
lua_newtable(L);
#ifndef _WIN32
- for (a = addr; a; a = a->ifa_next) {
+
+ for(a = addr; a; a = a->ifa_next) {
int family;
char ipaddr[INET6_ADDRSTRLEN];
const char *tmp = NULL;
- if (a->ifa_addr == NULL || a->ifa_flags & IFF_LOOPBACK)
+ if(a->ifa_addr == NULL || a->ifa_flags & IFF_LOOPBACK) {
continue;
+ }
family = a->ifa_addr->sa_family;
- if (ipv4 && family == AF_INET) {
+ if(ipv4 && family == AF_INET) {
struct sockaddr_in *sa = (struct sockaddr_in *)a->ifa_addr;
- if (!link_local &&((sa->sin_addr.s_addr & ip4_mask) == ip4_linklocal))
+
+ if(!link_local && ((sa->sin_addr.s_addr & ip4_mask) == ip4_linklocal)) {
continue;
+ }
+
tmp = inet_ntop(family, &sa->sin_addr, ipaddr, sizeof(ipaddr));
- } else if (ipv6 && family == AF_INET6) {
+ } else if(ipv6 && family == AF_INET6) {
struct sockaddr_in6 *sa = (struct sockaddr_in6 *)a->ifa_addr;
- if (!link_local && IN6_IS_ADDR_LINKLOCAL(&sa->sin6_addr))
+
+ if(!link_local && IN6_IS_ADDR_LINKLOCAL(&sa->sin6_addr)) {
continue;
- if (IN6_IS_ADDR_V4MAPPED(&sa->sin6_addr) || IN6_IS_ADDR_V4COMPAT(&sa->sin6_addr))
+ }
+
+ if(IN6_IS_ADDR_V4MAPPED(&sa->sin6_addr) || IN6_IS_ADDR_V4COMPAT(&sa->sin6_addr)) {
continue;
+ }
+
tmp = inet_ntop(family, &sa->sin6_addr, ipaddr, sizeof(ipaddr));
}
- if (tmp != NULL) {
+ if(tmp != NULL) {
lua_pushstring(L, tmp);
lua_rawseti(L, -2, n++);
}
+
/* TODO: Error reporting? */
}
freeifaddrs(addr);
#else
- if (ipv4) {
+
+ if(ipv4) {
lua_pushstring(L, "0.0.0.0");
lua_rawseti(L, -2, n++);
}
- if (ipv6) {
+
+ if(ipv6) {
lua_pushstring(L, "::");
lua_rawseti(L, -2, n++);
}
+
#endif
return 1;
}
-int luaopen_util_net(lua_State* L)
-{
+int luaopen_util_net(lua_State *L) {
+#if (LUA_VERSION_NUM > 501)
+ luaL_checkversion(L);
+#endif
luaL_Reg exports[] = {
{ "local_addresses", lc_local_addresses },
{ NULL, NULL }
};
- luaL_register(L, "net", exports);
+ lua_createtable(L, 0, 1);
+ luaL_setfuncs(L, exports, 0);
return 1;
}
diff --git a/util-src/pposix.c b/util-src/pposix.c
index df814c28..e70a9d7f 100644
--- a/util-src/pposix.c
+++ b/util-src/pposix.c
@@ -13,7 +13,15 @@
* POSIX support functions for Lua
*/
-#define MODULE_VERSION "0.3.6"
+#define MODULE_VERSION "0.4.0"
+
+
+#if defined(__linux__)
+#define _GNU_SOURCE
+#else
+#define _DEFAULT_SOURCE
+#endif
+#define _POSIX_C_SOURCE 200809L
#include <stdlib.h>
#include <math.h>
@@ -35,40 +43,52 @@
#include "lualib.h"
#include "lauxlib.h"
+#if (LUA_VERSION_NUM == 501)
+#define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R)
+#endif
+
#include <fcntl.h>
-#if defined(__linux__) && defined(_GNU_SOURCE)
+#if defined(__linux__)
#include <linux/falloc.h>
#endif
-#if (defined(_SVID_SOURCE) && !defined(WITHOUT_MALLINFO))
- #include <malloc.h>
- #define WITH_MALLINFO
+#if !defined(WITHOUT_MALLINFO) && defined(__linux__)
+#include <malloc.h>
+#define WITH_MALLINFO
+#endif
+
+#if defined(__FreeBSD__) && defined(RFPROC)
+/*
+ * On FreeBSD, calling fork() is equivalent to rfork(RFPROC | RFFDG).
+ *
+ * RFFDG being set means that the file descriptor table is copied,
+ * otherwise it's shared. We want the later, otherwise libevent gets
+ * messed up.
+ *
+ * See issue #412
+ */
+#define fork() rfork(RFPROC)
#endif
/* Daemonization support */
-static int lc_daemonize(lua_State *L)
-{
+static int lc_daemonize(lua_State *L) {
pid_t pid;
- if ( getppid() == 1 )
- {
+ if(getppid() == 1) {
lua_pushboolean(L, 0);
lua_pushstring(L, "already-daemonized");
return 2;
}
/* Attempt initial fork */
- if((pid = fork()) < 0)
- {
+ if((pid = fork()) < 0) {
/* Forking failed */
lua_pushboolean(L, 0);
lua_pushstring(L, "fork-failed");
return 2;
- }
- else if(pid != 0)
- {
+ } else if(pid != 0) {
/* We are the parent process */
lua_pushboolean(L, 1);
lua_pushnumber(L, pid);
@@ -76,8 +96,7 @@ static int lc_daemonize(lua_State *L)
}
/* and we are the child process */
- if(setsid() == -1)
- {
+ if(setsid() == -1) {
/* We failed to become session leader */
/* (we probably already were) */
lua_pushboolean(L, 0);
@@ -95,8 +114,9 @@ static int lc_daemonize(lua_State *L)
open("/dev/null", O_WRONLY);
/* Final fork, use it wisely */
- if(fork())
+ if(fork()) {
exit(0);
+ }
/* Show's over, let's continue */
lua_pushboolean(L, 1);
@@ -106,59 +126,59 @@ static int lc_daemonize(lua_State *L)
/* Syslog support */
-const char * const facility_strings[] = {
- "auth",
+const char *const facility_strings[] = {
+ "auth",
#if !(defined(sun) || defined(__sun))
- "authpriv",
+ "authpriv",
#endif
- "cron",
- "daemon",
+ "cron",
+ "daemon",
#if !(defined(sun) || defined(__sun))
- "ftp",
+ "ftp",
#endif
- "kern",
- "local0",
- "local1",
- "local2",
- "local3",
- "local4",
- "local5",
- "local6",
- "local7",
- "lpr",
- "mail",
- "syslog",
- "user",
- "uucp",
- NULL
- };
+ "kern",
+ "local0",
+ "local1",
+ "local2",
+ "local3",
+ "local4",
+ "local5",
+ "local6",
+ "local7",
+ "lpr",
+ "mail",
+ "syslog",
+ "user",
+ "uucp",
+ NULL
+};
int facility_constants[] = {
- LOG_AUTH,
+ LOG_AUTH,
#if !(defined(sun) || defined(__sun))
- LOG_AUTHPRIV,
+ LOG_AUTHPRIV,
#endif
- LOG_CRON,
- LOG_DAEMON,
+ LOG_CRON,
+ LOG_DAEMON,
#if !(defined(sun) || defined(__sun))
- LOG_FTP,
+ LOG_FTP,
#endif
- LOG_KERN,
- LOG_LOCAL0,
- LOG_LOCAL1,
- LOG_LOCAL2,
- LOG_LOCAL3,
- LOG_LOCAL4,
- LOG_LOCAL5,
- LOG_LOCAL6,
- LOG_LOCAL7,
- LOG_LPR,
- LOG_MAIL,
- LOG_NEWS,
- LOG_SYSLOG,
- LOG_USER,
- LOG_UUCP,
- -1
- };
+ LOG_KERN,
+ LOG_LOCAL0,
+ LOG_LOCAL1,
+ LOG_LOCAL2,
+ LOG_LOCAL3,
+ LOG_LOCAL4,
+ LOG_LOCAL5,
+ LOG_LOCAL6,
+ LOG_LOCAL7,
+ LOG_LPR,
+ LOG_MAIL,
+ LOG_NEWS,
+ LOG_SYSLOG,
+ LOG_USER,
+ LOG_UUCP,
+ -1
+};
/* "
The parameter ident in the call of openlog() is probably stored as-is.
@@ -168,17 +188,17 @@ int facility_constants[] = {
constant.
" -- syslog manpage
*/
-char* syslog_ident = NULL;
+char *syslog_ident = NULL;
-int lc_syslog_open(lua_State* L)
-{
+int lc_syslog_open(lua_State *L) {
int facility = luaL_checkoption(L, 2, "daemon", facility_strings);
facility = facility_constants[facility];
luaL_checkstring(L, 1);
- if(syslog_ident)
+ if(syslog_ident) {
free(syslog_ident);
+ }
syslog_ident = strdup(lua_tostring(L, 1));
@@ -186,53 +206,52 @@ int lc_syslog_open(lua_State* L)
return 0;
}
-const char * const level_strings[] = {
- "debug",
- "info",
- "notice",
- "warn",
- "error",
- NULL
- };
+const char *const level_strings[] = {
+ "debug",
+ "info",
+ "notice",
+ "warn",
+ "error",
+ NULL
+};
int level_constants[] = {
- LOG_DEBUG,
- LOG_INFO,
- LOG_NOTICE,
- LOG_WARNING,
- LOG_CRIT,
- -1
- };
-int lc_syslog_log(lua_State* L)
-{
+ LOG_DEBUG,
+ LOG_INFO,
+ LOG_NOTICE,
+ LOG_WARNING,
+ LOG_CRIT,
+ -1
+};
+int lc_syslog_log(lua_State *L) {
int level = level_constants[luaL_checkoption(L, 1, "notice", level_strings)];
- if(lua_gettop(L) == 3)
+ if(lua_gettop(L) == 3) {
syslog(level, "%s: %s", luaL_checkstring(L, 2), luaL_checkstring(L, 3));
- else
+ } else {
syslog(level, "%s", lua_tostring(L, 2));
+ }
return 0;
}
-int lc_syslog_close(lua_State* L)
-{
+int lc_syslog_close(lua_State *L) {
closelog();
- if(syslog_ident)
- {
+
+ if(syslog_ident) {
free(syslog_ident);
syslog_ident = NULL;
}
+
return 0;
}
-int lc_syslog_setmask(lua_State* L)
-{
+int lc_syslog_setmask(lua_State *L) {
int level_idx = luaL_checkoption(L, 1, "notice", level_strings);
int mask = 0;
- do
- {
+
+ do {
mask |= LOG_MASK(level_constants[level_idx]);
- } while (++level_idx<=4);
+ } while(++level_idx <= 4);
setlogmask(mask);
return 0;
@@ -240,72 +259,69 @@ int lc_syslog_setmask(lua_State* L)
/* getpid */
-int lc_getpid(lua_State* L)
-{
+int lc_getpid(lua_State *L) {
lua_pushinteger(L, getpid());
return 1;
}
/* UID/GID functions */
-int lc_getuid(lua_State* L)
-{
+int lc_getuid(lua_State *L) {
lua_pushinteger(L, getuid());
return 1;
}
-int lc_getgid(lua_State* L)
-{
+int lc_getgid(lua_State *L) {
lua_pushinteger(L, getgid());
return 1;
}
-int lc_setuid(lua_State* L)
-{
+int lc_setuid(lua_State *L) {
int uid = -1;
- if(lua_gettop(L) < 1)
+
+ if(lua_gettop(L) < 1) {
return 0;
- if(!lua_isnumber(L, 1) && lua_tostring(L, 1))
- {
+ }
+
+ if(!lua_isnumber(L, 1) && lua_tostring(L, 1)) {
/* Passed UID is actually a string, so look up the UID */
struct passwd *p;
p = getpwnam(lua_tostring(L, 1));
- if(!p)
- {
+
+ if(!p) {
lua_pushboolean(L, 0);
lua_pushstring(L, "no-such-user");
return 2;
}
+
uid = p->pw_uid;
- }
- else
- {
+ } else {
uid = lua_tonumber(L, 1);
}
- if(uid>-1)
- {
+ if(uid > -1) {
/* Ok, attempt setuid */
errno = 0;
- if(setuid(uid))
- {
+
+ if(setuid(uid)) {
/* Fail */
lua_pushboolean(L, 0);
- switch(errno)
- {
- case EINVAL:
- lua_pushstring(L, "invalid-uid");
- break;
- case EPERM:
- lua_pushstring(L, "permission-denied");
- break;
- default:
- lua_pushstring(L, "unknown-error");
+
+ switch(errno) {
+ case EINVAL:
+ lua_pushstring(L, "invalid-uid");
+ break;
+
+ case EPERM:
+ lua_pushstring(L, "permission-denied");
+ break;
+
+ default:
+ lua_pushstring(L, "unknown-error");
}
+
return 2;
- }
- else
- {
+ } else {
/* Success! */
lua_pushboolean(L, 1);
return 1;
@@ -318,52 +334,52 @@ int lc_setuid(lua_State* L)
return 2;
}
-int lc_setgid(lua_State* L)
-{
+int lc_setgid(lua_State *L) {
int gid = -1;
- if(lua_gettop(L) < 1)
+
+ if(lua_gettop(L) < 1) {
return 0;
- if(!lua_isnumber(L, 1) && lua_tostring(L, 1))
- {
+ }
+
+ if(!lua_isnumber(L, 1) && lua_tostring(L, 1)) {
/* Passed GID is actually a string, so look up the GID */
struct group *g;
g = getgrnam(lua_tostring(L, 1));
- if(!g)
- {
+
+ if(!g) {
lua_pushboolean(L, 0);
lua_pushstring(L, "no-such-group");
return 2;
}
+
gid = g->gr_gid;
- }
- else
- {
+ } else {
gid = lua_tonumber(L, 1);
}
- if(gid>-1)
- {
+ if(gid > -1) {
/* Ok, attempt setgid */
errno = 0;
- if(setgid(gid))
- {
+
+ if(setgid(gid)) {
/* Fail */
lua_pushboolean(L, 0);
- switch(errno)
- {
- case EINVAL:
- lua_pushstring(L, "invalid-gid");
- break;
- case EPERM:
- lua_pushstring(L, "permission-denied");
- break;
- default:
- lua_pushstring(L, "unknown-error");
+
+ switch(errno) {
+ case EINVAL:
+ lua_pushstring(L, "invalid-gid");
+ break;
+
+ case EPERM:
+ lua_pushstring(L, "permission-denied");
+ break;
+
+ default:
+ lua_pushstring(L, "unknown-error");
}
+
return 2;
- }
- else
- {
+ } else {
/* Success! */
lua_pushboolean(L, 1);
return 1;
@@ -376,90 +392,93 @@ int lc_setgid(lua_State* L)
return 2;
}
-int lc_initgroups(lua_State* L)
-{
+int lc_initgroups(lua_State *L) {
int ret;
gid_t gid;
struct passwd *p;
- if(!lua_isstring(L, 1))
- {
+ if(!lua_isstring(L, 1)) {
lua_pushnil(L);
lua_pushstring(L, "invalid-username");
return 2;
}
+
p = getpwnam(lua_tostring(L, 1));
- if(!p)
- {
+
+ if(!p) {
lua_pushnil(L);
lua_pushstring(L, "no-such-user");
return 2;
}
- if(lua_gettop(L) < 2)
- lua_pushnil(L);
- switch(lua_type(L, 2))
- {
- case LUA_TNIL:
- gid = p->pw_gid;
- break;
- case LUA_TNUMBER:
- gid = lua_tointeger(L, 2);
- break;
- default:
+
+ if(lua_gettop(L) < 2) {
lua_pushnil(L);
- lua_pushstring(L, "invalid-gid");
- return 2;
}
- ret = initgroups(lua_tostring(L, 1), gid);
- if(ret)
- {
- switch(errno)
- {
- case ENOMEM:
- lua_pushnil(L);
- lua_pushstring(L, "no-memory");
+
+ switch(lua_type(L, 2)) {
+ case LUA_TNIL:
+ gid = p->pw_gid;
break;
- case EPERM:
- lua_pushnil(L);
- lua_pushstring(L, "permission-denied");
+
+ case LUA_TNUMBER:
+ gid = lua_tointeger(L, 2);
break;
+
default:
lua_pushnil(L);
- lua_pushstring(L, "unknown-error");
- }
+ lua_pushstring(L, "invalid-gid");
+ return 2;
}
- else
- {
+
+ ret = initgroups(lua_tostring(L, 1), gid);
+
+ if(ret) {
+ switch(errno) {
+ case ENOMEM:
+ lua_pushnil(L);
+ lua_pushstring(L, "no-memory");
+ break;
+
+ case EPERM:
+ lua_pushnil(L);
+ lua_pushstring(L, "permission-denied");
+ break;
+
+ default:
+ lua_pushnil(L);
+ lua_pushstring(L, "unknown-error");
+ }
+ } else {
lua_pushboolean(L, 1);
lua_pushnil(L);
}
+
return 2;
}
-int lc_umask(lua_State* L)
-{
+int lc_umask(lua_State *L) {
char old_mode_string[7];
mode_t old_mode = umask(strtoul(luaL_checkstring(L, 1), NULL, 8));
snprintf(old_mode_string, sizeof(old_mode_string), "%03o", old_mode);
- old_mode_string[sizeof(old_mode_string)-1] = 0;
+ old_mode_string[sizeof(old_mode_string) - 1] = 0;
lua_pushstring(L, old_mode_string);
return 1;
}
-int lc_mkdir(lua_State* L)
-{
+int lc_mkdir(lua_State *L) {
int ret = mkdir(luaL_checkstring(L, 1), S_IRUSR | S_IWUSR | S_IXUSR
- | S_IRGRP | S_IWGRP | S_IXGRP
- | S_IROTH | S_IXOTH); /* mode 775 */
+ | S_IRGRP | S_IWGRP | S_IXGRP
+ | S_IROTH | S_IXOTH); /* mode 775 */
+
+ lua_pushboolean(L, ret == 0);
- lua_pushboolean(L, ret==0);
- if(ret)
- {
+ if(ret) {
lua_pushstring(L, strerror(errno));
return 2;
}
+
return 1;
}
@@ -474,68 +493,110 @@ int lc_mkdir(lua_State* L)
* pposix.setrlimit("NOFILE", 1000, 2000)
*/
int string2resource(const char *s) {
- if (!strcmp(s, "CORE")) return RLIMIT_CORE;
- if (!strcmp(s, "CPU")) return RLIMIT_CPU;
- if (!strcmp(s, "DATA")) return RLIMIT_DATA;
- if (!strcmp(s, "FSIZE")) return RLIMIT_FSIZE;
- if (!strcmp(s, "NOFILE")) return RLIMIT_NOFILE;
- if (!strcmp(s, "STACK")) return RLIMIT_STACK;
+ if(!strcmp(s, "CORE")) {
+ return RLIMIT_CORE;
+ }
+
+ if(!strcmp(s, "CPU")) {
+ return RLIMIT_CPU;
+ }
+
+ if(!strcmp(s, "DATA")) {
+ return RLIMIT_DATA;
+ }
+
+ if(!strcmp(s, "FSIZE")) {
+ return RLIMIT_FSIZE;
+ }
+
+ if(!strcmp(s, "NOFILE")) {
+ return RLIMIT_NOFILE;
+ }
+
+ if(!strcmp(s, "STACK")) {
+ return RLIMIT_STACK;
+ }
+
#if !(defined(sun) || defined(__sun))
- if (!strcmp(s, "MEMLOCK")) return RLIMIT_MEMLOCK;
- if (!strcmp(s, "NPROC")) return RLIMIT_NPROC;
- if (!strcmp(s, "RSS")) return RLIMIT_RSS;
+
+ if(!strcmp(s, "MEMLOCK")) {
+ return RLIMIT_MEMLOCK;
+ }
+
+ if(!strcmp(s, "NPROC")) {
+ return RLIMIT_NPROC;
+ }
+
+ if(!strcmp(s, "RSS")) {
+ return RLIMIT_RSS;
+ }
+
#endif
#ifdef RLIMIT_NICE
- if (!strcmp(s, "NICE")) return RLIMIT_NICE;
+
+ if(!strcmp(s, "NICE")) {
+ return RLIMIT_NICE;
+ }
+
#endif
return -1;
}
+rlim_t arg_to_rlimit(lua_State *L, int idx, rlim_t current) {
+ switch(lua_type(L, idx)) {
+ case LUA_TSTRING:
+
+ if(strcmp(lua_tostring(L, idx), "unlimited") == 0) {
+ return RLIM_INFINITY;
+ }
+
+ case LUA_TNUMBER:
+ return lua_tointeger(L, idx);
+
+ case LUA_TNONE:
+ case LUA_TNIL:
+ return current;
+
+ default:
+ return luaL_argerror(L, idx, "unexpected type");
+ }
+}
+
int lc_setrlimit(lua_State *L) {
+ struct rlimit lim;
int arguments = lua_gettop(L);
- int softlimit = -1;
- int hardlimit = -1;
- const char *resource = NULL;
int rid = -1;
+
if(arguments < 1 || arguments > 3) {
lua_pushboolean(L, 0);
lua_pushstring(L, "incorrect-arguments");
return 2;
}
- resource = luaL_checkstring(L, 1);
- softlimit = luaL_checkinteger(L, 2);
- hardlimit = luaL_checkinteger(L, 3);
+ rid = string2resource(luaL_checkstring(L, 1));
- rid = string2resource(resource);
- if (rid != -1) {
- struct rlimit lim;
- struct rlimit lim_current;
-
- if (softlimit < 0 || hardlimit < 0) {
- if (getrlimit(rid, &lim_current)) {
- lua_pushboolean(L, 0);
- lua_pushstring(L, "getrlimit-failed");
- return 2;
- }
- }
+ if(rid == -1) {
+ lua_pushboolean(L, 0);
+ lua_pushstring(L, "invalid-resource");
+ return 2;
+ }
- if (softlimit < 0) lim.rlim_cur = lim_current.rlim_cur;
- else lim.rlim_cur = softlimit;
- if (hardlimit < 0) lim.rlim_max = lim_current.rlim_max;
- else lim.rlim_max = hardlimit;
+ /* Fetch current values to use as defaults */
+ if(getrlimit(rid, &lim)) {
+ lua_pushboolean(L, 0);
+ lua_pushstring(L, "getrlimit-failed");
+ return 2;
+ }
- if (setrlimit(rid, &lim)) {
- lua_pushboolean(L, 0);
- lua_pushstring(L, "setrlimit-failed");
- return 2;
- }
- } else {
- /* Unsupported resoucrce. Sorry I'm pretty limited by POSIX standard. */
+ lim.rlim_cur = arg_to_rlimit(L, 2, lim.rlim_cur);
+ lim.rlim_max = arg_to_rlimit(L, 3, lim.rlim_max);
+
+ if(setrlimit(rid, &lim)) {
lua_pushboolean(L, 0);
- lua_pushstring(L, "invalid-resource");
+ lua_pushstring(L, "setrlimit-failed");
return 2;
}
+
lua_pushboolean(L, 1);
return 1;
}
@@ -546,7 +607,7 @@ int lc_getrlimit(lua_State *L) {
int rid = -1;
struct rlimit lim;
- if (arguments != 1) {
+ if(arguments != 1) {
lua_pushboolean(L, 0);
lua_pushstring(L, "invalid-arguments");
return 2;
@@ -554,40 +615,52 @@ int lc_getrlimit(lua_State *L) {
resource = luaL_checkstring(L, 1);
rid = string2resource(resource);
- if (rid != -1) {
- if (getrlimit(rid, &lim)) {
+
+ if(rid != -1) {
+ if(getrlimit(rid, &lim)) {
lua_pushboolean(L, 0);
lua_pushstring(L, "getrlimit-failed.");
return 2;
}
} else {
- /* Unsupported resoucrce. Sorry I'm pretty limited by POSIX standard. */
+ /* Unsupported resource. Sorry I'm pretty limited by POSIX standard. */
lua_pushboolean(L, 0);
lua_pushstring(L, "invalid-resource");
return 2;
}
+
lua_pushboolean(L, 1);
- lua_pushnumber(L, lim.rlim_cur);
- lua_pushnumber(L, lim.rlim_max);
+
+ if(lim.rlim_cur == RLIM_INFINITY) {
+ lua_pushstring(L, "unlimited");
+ } else {
+ lua_pushnumber(L, lim.rlim_cur);
+ }
+
+ if(lim.rlim_max == RLIM_INFINITY) {
+ lua_pushstring(L, "unlimited");
+ } else {
+ lua_pushnumber(L, lim.rlim_max);
+ }
+
return 3;
}
-int lc_abort(lua_State* L)
-{
+int lc_abort(lua_State *L) {
abort();
return 0;
}
-int lc_uname(lua_State* L)
-{
+int lc_uname(lua_State *L) {
struct utsname uname_info;
- if(uname(&uname_info) != 0)
- {
+
+ if(uname(&uname_info) != 0) {
lua_pushnil(L);
lua_pushstring(L, strerror(errno));
return 2;
}
- lua_newtable(L);
+
+ lua_createtable(L, 0, 6);
lua_pushstring(L, uname_info.sysname);
lua_setfield(L, -2, "sysname");
lua_pushstring(L, uname_info.nodename);
@@ -598,31 +671,32 @@ int lc_uname(lua_State* L)
lua_setfield(L, -2, "version");
lua_pushstring(L, uname_info.machine);
lua_setfield(L, -2, "machine");
+#ifdef __USE_GNU
+ lua_pushstring(L, uname_info.domainname);
+ lua_setfield(L, -2, "domainname");
+#endif
return 1;
}
-int lc_setenv(lua_State* L)
-{
+int lc_setenv(lua_State *L) {
const char *var = luaL_checkstring(L, 1);
const char *value;
/* If the second argument is nil or nothing, unset the var */
- if(lua_isnoneornil(L, 2))
- {
- if(unsetenv(var) != 0)
- {
+ if(lua_isnoneornil(L, 2)) {
+ if(unsetenv(var) != 0) {
lua_pushnil(L);
lua_pushstring(L, strerror(errno));
return 2;
}
+
lua_pushboolean(L, 1);
return 1;
}
value = luaL_checkstring(L, 2);
- if(setenv(var, value, 1) != 0)
- {
+ if(setenv(var, value, 1) != 0) {
lua_pushnil(L);
lua_pushstring(L, strerror(errno));
return 2;
@@ -633,10 +707,9 @@ int lc_setenv(lua_State* L)
}
#ifdef WITH_MALLINFO
-int lc_meminfo(lua_State* L)
-{
+int lc_meminfo(lua_State *L) {
struct mallinfo info = mallinfo();
- lua_newtable(L);
+ lua_createtable(L, 0, 5);
/* This is the total size of memory allocated with sbrk by malloc, in bytes. */
lua_pushinteger(L, info.arena);
lua_setfield(L, -2, "allocated");
@@ -657,67 +730,74 @@ int lc_meminfo(lua_State* L)
}
#endif
-/* File handle extraction blatantly stolen from
- * https://github.com/rrthomas/luaposix/blob/master/lposix.c#L631
- * */
+/*
+ * Append some data to a file handle
+ * Attempt to allocate space first
+ * Truncate to original size on failure
+ */
+int lc_atomic_append(lua_State *L) {
+ int err;
+ size_t len;
-#if _XOPEN_SOURCE >= 600 || _POSIX_C_SOURCE >= 200112L || defined(_GNU_SOURCE)
-int lc_fallocate(lua_State* L)
-{
- int ret;
- off_t offset, len;
- FILE *f = *(FILE**) luaL_checkudata(L, 1, LUA_FILEHANDLE);
- if (f == NULL)
- luaL_error(L, "attempt to use a closed file");
-
- offset = luaL_checkinteger(L, 2);
- len = luaL_checkinteger(L, 3);
-
-#if defined(__linux__) && defined(_GNU_SOURCE)
- errno = 0;
- ret = fallocate(fileno(f), FALLOC_FL_KEEP_SIZE, offset, len);
- if(ret == 0)
- {
- lua_pushboolean(L, 1);
- return 1;
- }
- /* Some old versions of Linux apparently use the return value instead of errno */
- if(errno == 0) errno = ret;
+ FILE *f = *(FILE **) luaL_checkudata(L, 1, LUA_FILEHANDLE);
+ const char *data = luaL_checklstring(L, 2, &len);
- if(errno != ENOSYS && errno != EOPNOTSUPP)
- {
- lua_pushnil(L);
- lua_pushstring(L, strerror(errno));
- return 2;
+ off_t offset = ftell(f);
+
+#if defined(__linux__)
+ /* Try to allocate space without changing the file size. */
+ if((err = fallocate(fileno(f), FALLOC_FL_KEEP_SIZE, offset, len))) {
+ if(errno != 0) {
+ /* Some old versions of Linux apparently use the return value instead of errno */
+ err = errno;
+ }
+ switch(err) {
+ case ENOSYS: /* Kernel doesn't implement fallocate */
+ case EOPNOTSUPP: /* Filesystem doesn't support it */
+ /* Ignore and proceed to try to write */
+ break;
+
+ case ENOSPC: /* No space left */
+ default: /* Other issues */
+ lua_pushnil(L);
+ lua_pushstring(L, strerror(err));
+ lua_pushinteger(L, err);
+ return 3;
+ }
}
-#else
-#warning Only using posix_fallocate() fallback.
-#warning Linux fallocate() is strongly recommended if available: recompile with -D_GNU_SOURCE
-#warning Note that posix_fallocate() will still be used on filesystems that dont support fallocate()
#endif
- ret = posix_fallocate(fileno(f), offset, len);
- if(ret == 0)
- {
- lua_pushboolean(L, 1);
- return 1;
+ if(fwrite(data, sizeof(char), len, f) == len) {
+ if(fflush(f) == 0) {
+ lua_pushboolean(L, 1); /* Great success! */
+ return 1;
+ } else {
+ err = errno;
+ }
+ } else {
+ err = ferror(f);
}
- else
- {
- lua_pushnil(L);
- lua_pushstring(L, strerror(ret));
- /* posix_fallocate() can leave a bunch of NULs at the end, so we cut that
- * this assumes that offset == length of the file */
- ftruncate(fileno(f), offset);
- return 2;
+
+ fseek(f, offset, SEEK_SET);
+
+ /* Cut partially written data */
+ if(ftruncate(fileno(f), offset)) {
+ /* The file is now most likely corrupted, throw hard error */
+ return luaL_error(L, "atomic_append() failed in ftruncate(): %s", strerror(errno));
}
+
+ lua_pushnil(L);
+ lua_pushstring(L, strerror(err));
+ lua_pushinteger(L, err);
+ return 3;
}
-#endif
/* Register functions */
-int luaopen_util_pposix(lua_State *L)
-{
+int luaopen_util_pposix(lua_State *L) {
+#if (LUA_VERSION_NUM > 501)
+ luaL_checkversion(L);
+#endif
luaL_Reg exports[] = {
{ "abort", lc_abort },
@@ -751,14 +831,18 @@ int luaopen_util_pposix(lua_State *L)
{ "meminfo", lc_meminfo },
#endif
-#if _XOPEN_SOURCE >= 600 || _POSIX_C_SOURCE >= 200112L || defined(_GNU_SOURCE)
- { "fallocate", lc_fallocate },
-#endif
+ { "atomic_append", lc_atomic_append },
{ NULL, NULL }
};
- luaL_register(L, "pposix", exports);
+ lua_newtable(L);
+ luaL_setfuncs(L, exports, 0);
+
+#ifdef ENOENT
+ lua_pushinteger(L, ENOENT);
+ lua_setfield(L, -2, "ENOENT");
+#endif
lua_pushliteral(L, "pposix");
lua_setfield(L, -2, "_NAME");
diff --git a/util-src/ringbuffer.c b/util-src/ringbuffer.c
new file mode 100644
index 00000000..8d9e49e6
--- /dev/null
+++ b/util-src/ringbuffer.c
@@ -0,0 +1,214 @@
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdio.h>
+
+#include <lua.h>
+#include <lauxlib.h>
+
+typedef struct {
+ size_t rpos; /* read position */
+ size_t wpos; /* write position */
+ size_t alen; /* allocated size */
+ size_t blen; /* current content size */
+ char buffer[];
+} ringbuffer;
+
+char readchar(ringbuffer *b) {
+ b->blen--;
+ return b->buffer[(b->rpos++) % b->alen];
+}
+
+void writechar(ringbuffer *b, char c) {
+ b->blen++;
+ b->buffer[(b->wpos++) % b->alen] = c;
+}
+
+/* make sure position counters stay within the allocation */
+void modpos(ringbuffer *b) {
+ b->rpos = b->rpos % b->alen;
+ b->wpos = b->wpos % b->alen;
+}
+
+int find(ringbuffer *b, const char *s, size_t l) {
+ size_t i, j;
+ int m;
+
+ if(b->rpos == b->wpos) { /* empty */
+ return 0;
+ }
+
+ for(i = 0; i <= b->blen - l; i++) {
+ if(b->buffer[(b->rpos + i) % b->alen] == *s) {
+ m = 1;
+
+ for(j = 1; j < l; j++)
+ if(b->buffer[(b->rpos + i + j) % b->alen] != s[j]) {
+ m = 0;
+ break;
+ }
+
+ if(m) {
+ return i + l;
+ }
+ }
+ }
+
+ return 0;
+}
+
+int rb_find(lua_State *L) {
+ size_t l, m;
+ ringbuffer *b = luaL_checkudata(L, 1, "ringbuffer_mt");
+ const char *s = luaL_checklstring(L, 2, &l);
+ m = find(b, s, l);
+
+ if(m > 0) {
+ lua_pushinteger(L, m);
+ return 1;
+ }
+
+ return 0;
+}
+
+int rb_read(lua_State *L) {
+ ringbuffer *b = luaL_checkudata(L, 1, "ringbuffer_mt");
+ size_t r = luaL_checkinteger(L, 2);
+ int peek = lua_toboolean(L, 3);
+
+ if(r > b->blen) {
+ lua_pushnil(L);
+ return 1;
+ }
+
+ if((b->rpos + r) > b->alen) {
+ lua_pushlstring(L, &b->buffer[b->rpos], b->alen - b->rpos);
+ lua_pushlstring(L, b->buffer, r - (b->alen - b->rpos));
+ lua_concat(L, 2);
+ } else {
+ lua_pushlstring(L, &b->buffer[b->rpos], r);
+ }
+
+ if(!peek) {
+ b->blen -= r;
+ b->rpos += r;
+ modpos(b);
+ }
+
+ return 1;
+}
+
+int rb_readuntil(lua_State *L) {
+ size_t l, m;
+ ringbuffer *b = luaL_checkudata(L, 1, "ringbuffer_mt");
+ const char *s = luaL_checklstring(L, 2, &l);
+ m = find(b, s, l);
+
+ if(m > 0) {
+ lua_settop(L, 1);
+ lua_pushinteger(L, m);
+ return rb_read(L);
+ }
+
+ return 0;
+}
+
+int rb_write(lua_State *L) {
+ size_t l, w = 0;
+ ringbuffer *b = luaL_checkudata(L, 1, "ringbuffer_mt");
+ const char *s = luaL_checklstring(L, 2, &l);
+
+ /* Does `l` bytes fit? */
+ if((l + b->blen) > b->alen) {
+ lua_pushnil(L);
+ return 1;
+ }
+
+ while(l-- > 0) {
+ writechar(b, *s++);
+ w++;
+ }
+
+ modpos(b);
+
+ lua_pushinteger(L, w);
+
+ return 1;
+}
+
+int rb_tostring(lua_State *L) {
+ ringbuffer *b = luaL_checkudata(L, 1, "ringbuffer_mt");
+ lua_pushfstring(L, "ringbuffer: %p %d/%d", b, b->blen, b->alen);
+ return 1;
+}
+
+int rb_length(lua_State *L) {
+ ringbuffer *b = luaL_checkudata(L, 1, "ringbuffer_mt");
+ lua_pushinteger(L, b->blen);
+ return 1;
+}
+
+int rb_size(lua_State *L) {
+ ringbuffer *b = luaL_checkudata(L, 1, "ringbuffer_mt");
+ lua_pushinteger(L, b->alen);
+ return 1;
+}
+
+int rb_free(lua_State *L) {
+ ringbuffer *b = luaL_checkudata(L, 1, "ringbuffer_mt");
+ lua_pushinteger(L, b->alen - b->blen);
+ return 1;
+}
+
+int rb_new(lua_State *L) {
+ size_t size = luaL_optinteger(L, 1, sysconf(_SC_PAGESIZE));
+ ringbuffer *b = lua_newuserdata(L, sizeof(ringbuffer) + size);
+
+ b->rpos = 0;
+ b->wpos = 0;
+ b->alen = size;
+ b->blen = 0;
+
+ luaL_getmetatable(L, "ringbuffer_mt");
+ lua_setmetatable(L, -2);
+
+ return 1;
+}
+
+int luaopen_util_ringbuffer(lua_State *L) {
+#if (LUA_VERSION_NUM > 501)
+ luaL_checkversion(L);
+#endif
+
+ if(luaL_newmetatable(L, "ringbuffer_mt")) {
+ lua_pushcfunction(L, rb_tostring);
+ lua_setfield(L, -2, "__tostring");
+ lua_pushcfunction(L, rb_length);
+ lua_setfield(L, -2, "__len");
+
+ lua_createtable(L, 0, 7); /* __index */
+ {
+ lua_pushcfunction(L, rb_find);
+ lua_setfield(L, -2, "find");
+ lua_pushcfunction(L, rb_read);
+ lua_setfield(L, -2, "read");
+ lua_pushcfunction(L, rb_readuntil);
+ lua_setfield(L, -2, "readuntil");
+ lua_pushcfunction(L, rb_write);
+ lua_setfield(L, -2, "write");
+ lua_pushcfunction(L, rb_size);
+ lua_setfield(L, -2, "size");
+ lua_pushcfunction(L, rb_length);
+ lua_setfield(L, -2, "length");
+ lua_pushcfunction(L, rb_free);
+ lua_setfield(L, -2, "free");
+ }
+ lua_setfield(L, -2, "__index");
+ }
+
+ lua_createtable(L, 0, 1);
+ lua_pushcfunction(L, rb_new);
+ lua_setfield(L, -2, "new");
+ return 1;
+}
diff --git a/util-src/signal.c b/util-src/signal.c
index 961d2d3e..2268e11c 100644
--- a/util-src/signal.c
+++ b/util-src/signal.c
@@ -23,23 +23,28 @@
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * OTHER DEALINGS IN THE SOFTWARE.
*/
+#define _GNU_SOURCE
+
#include <signal.h>
#include <stdlib.h>
#include "lua.h"
#include "lauxlib.h"
+#if (LUA_VERSION_NUM == 501)
+#define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R)
+#endif
+
#ifndef lsig
#define lsig
-struct lua_signal
-{
- char *name; /* name of the signal */
- int sig; /* the signal */
+struct lua_signal {
+ char *name; /* name of the signal */
+ int sig; /* the signal */
};
#endif
@@ -47,107 +52,107 @@ struct lua_signal
#define LUA_SIGNAL "lua_signal"
static const struct lua_signal lua_signals[] = {
- /* ANSI C signals */
+ /* ANSI C signals */
#ifdef SIGABRT
- {"SIGABRT", SIGABRT},
+ {"SIGABRT", SIGABRT},
#endif
#ifdef SIGFPE
- {"SIGFPE", SIGFPE},
+ {"SIGFPE", SIGFPE},
#endif
#ifdef SIGILL
- {"SIGILL", SIGILL},
+ {"SIGILL", SIGILL},
#endif
#ifdef SIGINT
- {"SIGINT", SIGINT},
+ {"SIGINT", SIGINT},
#endif
#ifdef SIGSEGV
- {"SIGSEGV", SIGSEGV},
+ {"SIGSEGV", SIGSEGV},
#endif
#ifdef SIGTERM
- {"SIGTERM", SIGTERM},
+ {"SIGTERM", SIGTERM},
#endif
- /* posix signals */
+ /* posix signals */
#ifdef SIGHUP
- {"SIGHUP", SIGHUP},
+ {"SIGHUP", SIGHUP},
#endif
#ifdef SIGQUIT
- {"SIGQUIT", SIGQUIT},
+ {"SIGQUIT", SIGQUIT},
#endif
#ifdef SIGTRAP
- {"SIGTRAP", SIGTRAP},
+ {"SIGTRAP", SIGTRAP},
#endif
#ifdef SIGKILL
- {"SIGKILL", SIGKILL},
+ {"SIGKILL", SIGKILL},
#endif
#ifdef SIGUSR1
- {"SIGUSR1", SIGUSR1},
+ {"SIGUSR1", SIGUSR1},
#endif
#ifdef SIGUSR2
- {"SIGUSR2", SIGUSR2},
+ {"SIGUSR2", SIGUSR2},
#endif
#ifdef SIGPIPE
- {"SIGPIPE", SIGPIPE},
+ {"SIGPIPE", SIGPIPE},
#endif
#ifdef SIGALRM
- {"SIGALRM", SIGALRM},
+ {"SIGALRM", SIGALRM},
#endif
#ifdef SIGCHLD
- {"SIGCHLD", SIGCHLD},
+ {"SIGCHLD", SIGCHLD},
#endif
#ifdef SIGCONT
- {"SIGCONT", SIGCONT},
+ {"SIGCONT", SIGCONT},
#endif
#ifdef SIGSTOP
- {"SIGSTOP", SIGSTOP},
+ {"SIGSTOP", SIGSTOP},
#endif
#ifdef SIGTTIN
- {"SIGTTIN", SIGTTIN},
+ {"SIGTTIN", SIGTTIN},
#endif
#ifdef SIGTTOU
- {"SIGTTOU", SIGTTOU},
+ {"SIGTTOU", SIGTTOU},
#endif
- /* some BSD signals */
+ /* some BSD signals */
#ifdef SIGIOT
- {"SIGIOT", SIGIOT},
+ {"SIGIOT", SIGIOT},
#endif
#ifdef SIGBUS
- {"SIGBUS", SIGBUS},
+ {"SIGBUS", SIGBUS},
#endif
#ifdef SIGCLD
- {"SIGCLD", SIGCLD},
+ {"SIGCLD", SIGCLD},
#endif
#ifdef SIGURG
- {"SIGURG", SIGURG},
+ {"SIGURG", SIGURG},
#endif
#ifdef SIGXCPU
- {"SIGXCPU", SIGXCPU},
+ {"SIGXCPU", SIGXCPU},
#endif
#ifdef SIGXFSZ
- {"SIGXFSZ", SIGXFSZ},
+ {"SIGXFSZ", SIGXFSZ},
#endif
#ifdef SIGVTALRM
- {"SIGVTALRM", SIGVTALRM},
+ {"SIGVTALRM", SIGVTALRM},
#endif
#ifdef SIGPROF
- {"SIGPROF", SIGPROF},
+ {"SIGPROF", SIGPROF},
#endif
#ifdef SIGWINCH
- {"SIGWINCH", SIGWINCH},
+ {"SIGWINCH", SIGWINCH},
#endif
#ifdef SIGPOLL
- {"SIGPOLL", SIGPOLL},
+ {"SIGPOLL", SIGPOLL},
#endif
#ifdef SIGIO
- {"SIGIO", SIGIO},
+ {"SIGIO", SIGIO},
#endif
- /* add odd signals */
+ /* add odd signals */
#ifdef SIGSTKFLT
- {"SIGSTKFLT", SIGSTKFLT}, /* stack fault */
+ {"SIGSTKFLT", SIGSTKFLT}, /* stack fault */
#endif
#ifdef SIGSYS
- {"SIGSYS", SIGSYS},
+ {"SIGSYS", SIGSYS},
#endif
- {NULL, 0}
+ {NULL, 0}
};
static lua_State *Lsig = NULL;
@@ -155,62 +160,55 @@ static lua_Hook Hsig = NULL;
static int Hmask = 0;
static int Hcount = 0;
-static struct signal_event
-{
+static struct signal_event {
int Nsig;
struct signal_event *next_event;
} *signal_queue = NULL;
static struct signal_event *last_event = NULL;
-static void sighook(lua_State *L, lua_Debug *ar)
-{
- struct signal_event *event;
- /* restore the old hook */
- lua_sethook(L, Hsig, Hmask, Hcount);
+static void sighook(lua_State *L, lua_Debug *ar) {
+ struct signal_event *event;
+ /* restore the old hook */
+ lua_sethook(L, Hsig, Hmask, Hcount);
- lua_pushstring(L, LUA_SIGNAL);
- lua_gettable(L, LUA_REGISTRYINDEX);
+ lua_pushstring(L, LUA_SIGNAL);
+ lua_gettable(L, LUA_REGISTRYINDEX);
- while((event = signal_queue))
- {
- lua_pushnumber(L, event->Nsig);
- lua_gettable(L, -2);
- lua_call(L, 0, 0);
- signal_queue = event->next_event;
- free(event);
- };
+ while((event = signal_queue)) {
+ lua_pushnumber(L, event->Nsig);
+ lua_gettable(L, -2);
+ lua_call(L, 0, 0);
+ signal_queue = event->next_event;
+ free(event);
+ };
- lua_pop(L, 1); /* pop lua_signal table */
+ lua_pop(L, 1); /* pop lua_signal table */
}
-static void handle(int sig)
-{
- if(!signal_queue)
- {
- /* Store the existing debug hook (if any) and its parameters */
- Hsig = lua_gethook(Lsig);
- Hmask = lua_gethookmask(Lsig);
- Hcount = lua_gethookcount(Lsig);
-
- signal_queue = malloc(sizeof(struct signal_event));
- signal_queue->Nsig = sig;
- signal_queue->next_event = NULL;
-
- last_event = signal_queue;
-
- /* Set our new debug hook */
- lua_sethook(Lsig, sighook, LUA_MASKCALL | LUA_MASKRET | LUA_MASKCOUNT, 1);
- }
- else
- {
- last_event->next_event = malloc(sizeof(struct signal_event));
- last_event->next_event->Nsig = sig;
- last_event->next_event->next_event = NULL;
-
- last_event = last_event->next_event;
- }
+static void handle(int sig) {
+ if(!signal_queue) {
+ /* Store the existing debug hook (if any) and its parameters */
+ Hsig = lua_gethook(Lsig);
+ Hmask = lua_gethookmask(Lsig);
+ Hcount = lua_gethookcount(Lsig);
+
+ signal_queue = malloc(sizeof(struct signal_event));
+ signal_queue->Nsig = sig;
+ signal_queue->next_event = NULL;
+
+ last_event = signal_queue;
+
+ /* Set our new debug hook */
+ lua_sethook(Lsig, sighook, LUA_MASKCALL | LUA_MASKRET | LUA_MASKCOUNT, 1);
+ } else {
+ last_event->next_event = malloc(sizeof(struct signal_event));
+ last_event->next_event->Nsig = sig;
+ last_event->next_event->next_event = NULL;
+
+ last_event = last_event->next_event;
+ }
}
/*
@@ -222,108 +220,113 @@ static void handle(int sig)
* if caught, Lua function _must_
* exit, as the stack is most likely
* in an unstable state.
-*/
-
-static int l_signal(lua_State *L)
-{
- int args = lua_gettop(L);
- int t, sig; /* type, signal */
-
- /* get type of signal */
- luaL_checkany(L, 1);
- t = lua_type(L, 1);
- if (t == LUA_TNUMBER)
- sig = (int) lua_tonumber(L, 1);
- else if (t == LUA_TSTRING)
- {
- lua_pushstring(L, LUA_SIGNAL);
- lua_gettable(L, LUA_REGISTRYINDEX);
- lua_pushvalue(L, 1);
- lua_gettable(L, -2);
- if (!lua_isnumber(L, -1))
- luaL_error(L, "invalid signal string");
- sig = (int) lua_tonumber(L, -1);
- lua_pop(L, 1); /* get rid of number we pushed */
- } else
- luaL_checknumber(L, 1); /* will always error, with good error msg */
-
- /* set handler */
- if (args == 1 || lua_isnil(L, 2)) /* clear handler */
- {
- lua_pushstring(L, LUA_SIGNAL);
- lua_gettable(L, LUA_REGISTRYINDEX);
- lua_pushnumber(L, sig);
- lua_gettable(L, -2); /* return old handler */
- lua_pushnumber(L, sig);
- lua_pushnil(L);
- lua_settable(L, -4);
- lua_remove(L, -2); /* remove LUA_SIGNAL table */
- signal(sig, SIG_DFL);
- } else
- {
- luaL_checktype(L, 2, LUA_TFUNCTION);
-
- lua_pushstring(L, LUA_SIGNAL);
- lua_gettable(L, LUA_REGISTRYINDEX);
-
- lua_pushnumber(L, sig);
- lua_pushvalue(L, 2);
- lua_settable(L, -3);
-
- /* Set the state for the handler */
- Lsig = L;
-
- if (lua_toboolean(L, 3)) /* c hook? */
- {
- if (signal(sig, handle) == SIG_ERR)
- lua_pushboolean(L, 0);
- else
- lua_pushboolean(L, 1);
- } else /* lua_hook */
- {
- if (signal(sig, handle) == SIG_ERR)
- lua_pushboolean(L, 0);
- else
- lua_pushboolean(L, 1);
- }
- }
- return 1;
+*/
+
+static int l_signal(lua_State *L) {
+ int args = lua_gettop(L);
+ int t, sig; /* type, signal */
+
+ /* get type of signal */
+ luaL_checkany(L, 1);
+ t = lua_type(L, 1);
+
+ if(t == LUA_TNUMBER) {
+ sig = (int) lua_tonumber(L, 1);
+ } else if(t == LUA_TSTRING) {
+ lua_pushstring(L, LUA_SIGNAL);
+ lua_gettable(L, LUA_REGISTRYINDEX);
+ lua_pushvalue(L, 1);
+ lua_gettable(L, -2);
+
+ if(!lua_isnumber(L, -1)) {
+ return luaL_error(L, "invalid signal string");
+ }
+
+ sig = (int) lua_tonumber(L, -1);
+ lua_pop(L, 1); /* get rid of number we pushed */
+ } else {
+ luaL_checknumber(L, 1); /* will always error, with good error msg */
+ return luaL_error(L, "unreachable: invalid number was accepted");
+ }
+
+ /* set handler */
+ if(args == 1 || lua_isnil(L, 2)) { /* clear handler */
+ lua_pushstring(L, LUA_SIGNAL);
+ lua_gettable(L, LUA_REGISTRYINDEX);
+ lua_pushnumber(L, sig);
+ lua_gettable(L, -2); /* return old handler */
+ lua_pushnumber(L, sig);
+ lua_pushnil(L);
+ lua_settable(L, -4);
+ lua_remove(L, -2); /* remove LUA_SIGNAL table */
+ signal(sig, SIG_DFL);
+ } else {
+ luaL_checktype(L, 2, LUA_TFUNCTION);
+
+ lua_pushstring(L, LUA_SIGNAL);
+ lua_gettable(L, LUA_REGISTRYINDEX);
+
+ lua_pushnumber(L, sig);
+ lua_pushvalue(L, 2);
+ lua_settable(L, -3);
+
+ /* Set the state for the handler */
+ Lsig = L;
+
+ if(lua_toboolean(L, 3)) { /* c hook? */
+ if(signal(sig, handle) == SIG_ERR) {
+ lua_pushboolean(L, 0);
+ } else {
+ lua_pushboolean(L, 1);
+ }
+ } else { /* lua_hook */
+ if(signal(sig, handle) == SIG_ERR) {
+ lua_pushboolean(L, 0);
+ } else {
+ lua_pushboolean(L, 1);
+ }
+ }
+ }
+
+ return 1;
}
/*
* l_raise == raise(signal)
*
* signal = signal number or string
-*/
-
-static int l_raise(lua_State *L)
-{
- /* int args = lua_gettop(L); */
- int t = 0; /* type */
- lua_Number ret;
-
- luaL_checkany(L, 1);
-
- t = lua_type(L, 1);
- if (t == LUA_TNUMBER)
- {
- ret = (lua_Number) raise((int) lua_tonumber(L, 1));
- lua_pushnumber(L, ret);
- } else if (t == LUA_TSTRING)
- {
- lua_pushstring(L, LUA_SIGNAL);
- lua_gettable(L, LUA_REGISTRYINDEX);
- lua_pushvalue(L, 1);
- lua_gettable(L, -2);
- if (!lua_isnumber(L, -1))
- luaL_error(L, "invalid signal string");
- ret = (lua_Number) raise((int) lua_tonumber(L, -1));
- lua_pop(L, 1); /* get rid of number we pushed */
- lua_pushnumber(L, ret);
- } else
- luaL_checknumber(L, 1); /* will always error, with good error msg */
-
- return 1;
+*/
+
+static int l_raise(lua_State *L) {
+ /* int args = lua_gettop(L); */
+ int t = 0; /* type */
+ lua_Number ret;
+
+ luaL_checkany(L, 1);
+
+ t = lua_type(L, 1);
+
+ if(t == LUA_TNUMBER) {
+ ret = (lua_Number) raise((int) lua_tonumber(L, 1));
+ lua_pushnumber(L, ret);
+ } else if(t == LUA_TSTRING) {
+ lua_pushstring(L, LUA_SIGNAL);
+ lua_gettable(L, LUA_REGISTRYINDEX);
+ lua_pushvalue(L, 1);
+ lua_gettable(L, -2);
+
+ if(!lua_isnumber(L, -1)) {
+ return luaL_error(L, "invalid signal string");
+ }
+
+ ret = (lua_Number) raise((int) lua_tonumber(L, -1));
+ lua_pop(L, 1); /* get rid of number we pushed */
+ lua_pushnumber(L, ret);
+ } else {
+ luaL_checknumber(L, 1); /* will always error, with good error msg */
+ }
+
+ return 1;
}
#if defined(__unix__) || defined(__APPLE__)
@@ -335,78 +338,83 @@ static int l_raise(lua_State *L)
*
* pid = process id
* signal = signal number or string
-*/
-
-static int l_kill(lua_State *L)
-{
- int t; /* type */
- lua_Number ret; /* return value */
-
- luaL_checknumber(L, 1); /* must be int for pid */
- luaL_checkany(L, 2); /* check for a second arg */
-
- t = lua_type(L, 2);
- if (t == LUA_TNUMBER)
- {
- ret = (lua_Number) kill((int) lua_tonumber(L, 1),
- (int) lua_tonumber(L, 2));
- lua_pushnumber(L, ret);
- } else if (t == LUA_TSTRING)
- {
- lua_pushstring(L, LUA_SIGNAL);
- lua_gettable(L, LUA_REGISTRYINDEX);
- lua_pushvalue(L, 2);
- lua_gettable(L, -2);
- if (!lua_isnumber(L, -1))
- luaL_error(L, "invalid signal string");
- ret = (lua_Number) kill((int) lua_tonumber(L, 1),
- (int) lua_tonumber(L, -1));
- lua_pop(L, 1); /* get rid of number we pushed */
- lua_pushnumber(L, ret);
- } else
- luaL_checknumber(L, 2); /* will always error, with good error msg */
- return 1;
+*/
+
+static int l_kill(lua_State *L) {
+ int t; /* type */
+ lua_Number ret; /* return value */
+
+ luaL_checknumber(L, 1); /* must be int for pid */
+ luaL_checkany(L, 2); /* check for a second arg */
+
+ t = lua_type(L, 2);
+
+ if(t == LUA_TNUMBER) {
+ ret = (lua_Number) kill((int) lua_tonumber(L, 1),
+ (int) lua_tonumber(L, 2));
+ lua_pushnumber(L, ret);
+ } else if(t == LUA_TSTRING) {
+ lua_pushstring(L, LUA_SIGNAL);
+ lua_gettable(L, LUA_REGISTRYINDEX);
+ lua_pushvalue(L, 2);
+ lua_gettable(L, -2);
+
+ if(!lua_isnumber(L, -1)) {
+ return luaL_error(L, "invalid signal string");
+ }
+
+ ret = (lua_Number) kill((int) lua_tonumber(L, 1),
+ (int) lua_tonumber(L, -1));
+ lua_pop(L, 1); /* get rid of number we pushed */
+ lua_pushnumber(L, ret);
+ } else {
+ luaL_checknumber(L, 2); /* will always error, with good error msg */
+ }
+
+ return 1;
}
#endif
static const struct luaL_Reg lsignal_lib[] = {
- {"signal", l_signal},
- {"raise", l_raise},
+ {"signal", l_signal},
+ {"raise", l_raise},
#if defined(__unix__) || defined(__APPLE__)
- {"kill", l_kill},
+ {"kill", l_kill},
#endif
- {NULL, NULL}
+ {NULL, NULL}
};
-int luaopen_util_signal(lua_State *L)
-{
- int i = 0;
-
- /* add the library */
- luaL_register(L, "signal", lsignal_lib);
-
- /* push lua_signals table into the registry */
- /* put the signals inside the library table too,
- * they are only a reference */
- lua_pushstring(L, LUA_SIGNAL);
- lua_createtable(L, 0, 0);
-
- while (lua_signals[i].name != NULL)
- {
- /* registry table */
- lua_pushstring(L, lua_signals[i].name);
- lua_pushnumber(L, lua_signals[i].sig);
- lua_settable(L, -3);
- /* signal table */
- lua_pushstring(L, lua_signals[i].name);
- lua_pushnumber(L, lua_signals[i].sig);
- lua_settable(L, -5);
- i++;
- }
-
- /* add newtable to the registry */
- lua_settable(L, LUA_REGISTRYINDEX);
-
- return 1;
+int luaopen_util_signal(lua_State *L) {
+#if (LUA_VERSION_NUM > 501)
+ luaL_checkversion(L);
+#endif
+ int i = 0;
+
+ /* add the library */
+ lua_newtable(L);
+ luaL_setfuncs(L, lsignal_lib, 0);
+
+ /* push lua_signals table into the registry */
+ /* put the signals inside the library table too,
+ * they are only a reference */
+ lua_pushstring(L, LUA_SIGNAL);
+ lua_newtable(L);
+
+ while(lua_signals[i].name != NULL) {
+ /* registry table */
+ lua_pushstring(L, lua_signals[i].name);
+ lua_pushnumber(L, lua_signals[i].sig);
+ lua_settable(L, -3);
+ /* signal table */
+ lua_pushstring(L, lua_signals[i].name);
+ lua_pushnumber(L, lua_signals[i].sig);
+ lua_settable(L, -5);
+ i++;
+ }
+
+ /* add newtable to the registry */
+ lua_settable(L, LUA_REGISTRYINDEX);
+
+ return 1;
}
diff --git a/util-src/table.c b/util-src/table.c
new file mode 100644
index 00000000..9a9553fc
--- /dev/null
+++ b/util-src/table.c
@@ -0,0 +1,33 @@
+#include <lua.h>
+#include <lauxlib.h>
+
+static int Lcreate_table(lua_State *L) {
+ lua_createtable(L, luaL_checkinteger(L, 1), luaL_checkinteger(L, 2));
+ return 1;
+}
+
+static int Lpack(lua_State *L) {
+ unsigned int n_args = lua_gettop(L);
+ lua_createtable(L, n_args, 1);
+ lua_insert(L, 1);
+
+ for(int arg = n_args; arg >= 1; arg--) {
+ lua_rawseti(L, 1, arg);
+ }
+
+ lua_pushinteger(L, n_args);
+ lua_setfield(L, -2, "n");
+ return 1;
+}
+
+int luaopen_util_table(lua_State *L) {
+#if (LUA_VERSION_NUM > 501)
+ luaL_checkversion(L);
+#endif
+ lua_createtable(L, 0, 2);
+ lua_pushcfunction(L, Lcreate_table);
+ lua_setfield(L, -2, "create");
+ lua_pushcfunction(L, Lpack);
+ lua_setfield(L, -2, "pack");
+ return 1;
+}
diff --git a/util-src/windows.c b/util-src/windows.c
index 3d14ca95..89bec57b 100644
--- a/util-src/windows.c
+++ b/util-src/windows.c
@@ -1,7 +1,7 @@
/* Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
---
+--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
@@ -19,23 +19,30 @@
#include "lua.h"
#include "lauxlib.h"
+#if (LUA_VERSION_NUM == 501)
+#define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R)
+#endif
+
static int Lget_nameservers(lua_State *L) {
char stack_buffer[1024]; // stack allocated buffer
- IP4_ARRAY* ips = (IP4_ARRAY*) stack_buffer;
+ IP4_ARRAY *ips = (IP4_ARRAY *) stack_buffer;
DWORD len = sizeof(stack_buffer);
DNS_STATUS status;
status = DnsQueryConfig(DnsConfigDnsServerList, FALSE, NULL, NULL, ips, &len);
- if (status == 0) {
+
+ if(status == 0) {
DWORD i;
lua_createtable(L, ips->AddrCount, 0);
- for (i = 0; i < ips->AddrCount; i++) {
+
+ for(i = 0; i < ips->AddrCount; i++) {
DWORD ip = ips->AddrArray[i];
char ip_str[16] = "";
sprintf_s(ip_str, sizeof(ip_str), "%d.%d.%d.%d", (ip >> 0) & 255, (ip >> 8) & 255, (ip >> 16) & 255, (ip >> 24) & 255);
lua_pushstring(L, ip_str);
- lua_rawseti(L, -2, i+1);
+ lua_rawseti(L, -2, i + 1);
}
+
return 1;
} else {
lua_pushnil(L);
@@ -44,7 +51,7 @@ static int Lget_nameservers(lua_State *L) {
}
}
-static int lerror(lua_State *L, char* string) {
+static int lerror(lua_State *L, char *string) {
lua_pushnil(L);
lua_pushfstring(L, "%s: %d", string, GetLastError());
return 2;
@@ -52,13 +59,22 @@ static int lerror(lua_State *L, char* string) {
static int Lget_consolecolor(lua_State *L) {
HWND console = GetStdHandle(STD_OUTPUT_HANDLE);
- WORD color; DWORD read_len;
-
+ WORD color;
+ DWORD read_len;
+
CONSOLE_SCREEN_BUFFER_INFO info;
-
- if (console == INVALID_HANDLE_VALUE) return lerror(L, "GetStdHandle");
- if (!GetConsoleScreenBufferInfo(console, &info)) return lerror(L, "GetConsoleScreenBufferInfo");
- if (!ReadConsoleOutputAttribute(console, &color, 1, info.dwCursorPosition, &read_len)) return lerror(L, "ReadConsoleOutputAttribute");
+
+ if(console == INVALID_HANDLE_VALUE) {
+ return lerror(L, "GetStdHandle");
+ }
+
+ if(!GetConsoleScreenBufferInfo(console, &info)) {
+ return lerror(L, "GetConsoleScreenBufferInfo");
+ }
+
+ if(!ReadConsoleOutputAttribute(console, &color, 1, info.dwCursorPosition, &read_len)) {
+ return lerror(L, "ReadConsoleOutputAttribute");
+ }
lua_pushnumber(L, color);
return 1;
@@ -66,14 +82,20 @@ static int Lget_consolecolor(lua_State *L) {
static int Lset_consolecolor(lua_State *L) {
int color = luaL_checkint(L, 1);
HWND console = GetStdHandle(STD_OUTPUT_HANDLE);
- if (console == INVALID_HANDLE_VALUE) return lerror(L, "GetStdHandle");
- if (!SetConsoleTextAttribute(console, color)) return lerror(L, "SetConsoleTextAttribute");
+
+ if(console == INVALID_HANDLE_VALUE) {
+ return lerror(L, "GetStdHandle");
+ }
+
+ if(!SetConsoleTextAttribute(console, color)) {
+ return lerror(L, "SetConsoleTextAttribute");
+ }
+
lua_pushboolean(L, 1);
return 1;
}
-static const luaL_Reg Reg[] =
-{
+static const luaL_Reg Reg[] = {
{ "get_nameservers", Lget_nameservers },
{ "get_consolecolor", Lget_consolecolor },
{ "set_consolecolor", Lset_consolecolor },
@@ -81,9 +103,12 @@ static const luaL_Reg Reg[] =
};
LUALIB_API int luaopen_util_windows(lua_State *L) {
- luaL_register(L, "windows", Reg);
- lua_pushliteral(L, "version"); /** version */
+#if (LUA_VERSION_NUM > 501)
+ luaL_checkversion(L);
+#endif
+ lua_newtable(L);
+ luaL_setfuncs(L, Reg, 0);
lua_pushliteral(L, "-3.14");
- lua_settable(L,-3);
+ lua_setfield(L, -2, "version");
return 1;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 19:09:35 +0000