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Merge pull request #1640 from felixhandte/lstat-macro-guard

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Protect lstat() With Better Macro Guard
This commit is contained in:
Yann Collet
2019-06-14 17:30:03 -07:00
committed by GitHub
parent 9af909bf35 d8970199f8
commit 1166782eb7
3 changed files with 8 additions and 10 deletions
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programs/util.c
+1 -9
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@@ -107,19 +107,11 @@ int UTIL_isSameFile(const char* file1, const char* file2)
U32 UTIL_isLink(const char* infilename)
{
/* macro guards, as defined in : https://linux.die.net/man/2/lstat */
#ifndef __STRICT_ANSI__
#if defined(_BSD_SOURCE) \
|| (defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 500)) \
|| (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) \
|| (defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L)) \
|| (defined(__APPLE__) && defined(__MACH__)) \
|| defined(__OpenBSD__) \
|| defined(__FreeBSD__)
#if PLATFORM_POSIX_VERSION >= 200112L
int r;
stat_t statbuf;
r = lstat(infilename, &statbuf);
if (!r && S_ISLNK(statbuf.st_mode)) return 1;
#endif
#endif
(void)infilename;
return 0;