X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Flchown.c;h=b04fb36468bd5caa343b877e8b5708936a75f206;hb=d6913e92bfd13a918b19223fb676e9c0f136400e;hp=37320fb84b720922b3f126000e79ea0a67fa4fd7;hpb=c4da5fc90ff7ff8ef395c84be4b14e0a3d404cbb;p=gnulib.git diff --git a/lib/lchown.c b/lib/lchown.c index 37320fb84..b04fb3646 100644 --- a/lib/lchown.c +++ b/lib/lchown.c @@ -22,46 +22,31 @@ #include #include #include -#ifndef errno -extern int errno; -#endif -#include "lchown.h" -#ifdef STAT_MACROS_BROKEN -# undef S_ISLNK -#endif - -#ifndef S_ISLNK -# ifdef S_IFLNK -# define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) -# else -# define S_ISLNK(m) 0 -# endif -#endif +#include "lchown.h" +#include "stat-macros.h" /* Declare chown to avoid a warning. Don't include unistd.h, because it may have a conflicting prototype for lchown. */ int chown (); /* Work just like chown, except when FILE is a symbolic link. - In that case, set errno to ENOSYS and return -1. + In that case, set errno to EOPNOTSUPP and return -1. But if autoconf tests determined that chown modifies symlinks, then just call chown. */ int lchown (const char *file, uid_t uid, gid_t gid) { -#if CHOWN_MODIFIES_SYMLINK - return chown (file, uid, gid); -#else +#if ! CHOWN_MODIFIES_SYMLINK struct stat stats; if (lstat (file, &stats) == 0 && S_ISLNK (stats.st_mode)) { - errno = ENOSYS; + errno = EOPNOTSUPP; return -1; } +#endif return chown (file, uid, gid); -#endif }