From cea75bb1a9b4ab93d366bd56d99fb3806ce25ac7 Mon Sep 17 00:00:00 2001 From: Kim Alvefur Date: Fri, 25 Apr 2014 02:41:55 +0200 Subject: util.pposix: Fix error reporting from really old Linux fallocate() that did not use errno for some reason (thanks pro) --- util-src/pposix.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/util-src/pposix.c b/util-src/pposix.c index a8654995..df814c28 100644 --- a/util-src/pposix.c +++ b/util-src/pposix.c @@ -674,11 +674,15 @@ int lc_fallocate(lua_State* L) len = luaL_checkinteger(L, 3); #if defined(__linux__) && defined(_GNU_SOURCE) - if(fallocate(fileno(f), FALLOC_FL_KEEP_SIZE, offset, len) == 0) + 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; if(errno != ENOSYS && errno != EOPNOTSUPP) { -- cgit v1.2.3