diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/setegid.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/setegid.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/setegid.c b/sysdeps/unix/sysv/linux/setegid.c index c4b114eb07..6643a9da79 100644 --- a/sysdeps/unix/sysv/linux/setegid.c +++ b/sysdeps/unix/sysv/linux/setegid.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1998, 2000, 2002 Free Software Foundation, Inc. +/* Copyright (C) 1998, 2000, 2002, 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -21,7 +21,10 @@ #include <sys/types.h> #include <unistd.h> -#ifdef __NR_setresgid +#include <sysdep.h> +#include "kernel-features.h" + +#if defined __NR_setresgid || __ASSUME_SETRESUID_SYSCALL > 0 extern int __setresgid (gid_t rgid, gid_t egid, gid_t sgid); @@ -36,15 +39,21 @@ setegid (gid_t gid) return -1; } +# if __ASSUME_32BITUIDS > 0 + return INLINE_SYSCALL (setresgid32, 3, -1, gid, -1); +# else /* First try the syscall. */ result = __setresgid (-1, gid, -1); +# if __ASSUME_SETRESUID_SYSCALL == 0 if (result == -1 && errno == ENOSYS) /* No system call available. Use emulation. This may not work since `setregid' also sets the saved group ID when GID is not equal to the real group ID, making it impossible to switch back. */ result = __setregid (-1, gid); +# endif return result; +# endif } libc_hidden_def (setegid) #else |