diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/fexecve.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/fexecve.c | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/sysdeps/unix/sysv/linux/fexecve.c b/sysdeps/unix/sysv/linux/fexecve.c deleted file mode 100644 index 30fa719b56..0000000000 --- a/sysdeps/unix/sysv/linux/fexecve.c +++ /dev/null @@ -1,55 +0,0 @@ -/* Copyright (C) 1994-2017 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 - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <stddef.h> -#include <stdio.h> -#include <unistd.h> -#include <sys/stat.h> - - -/* Execute the file FD refers to, overlaying the running program image. - ARGV and ENVP are passed to the new program, as for `execve'. */ -int -fexecve (int fd, char *const argv[], char *const envp[]) -{ - if (fd < 0 || argv == NULL || envp == NULL) - { - __set_errno (EINVAL); - return -1; - } - - /* We use the /proc filesystem to get the information. If it is not - mounted we fail. */ - char buf[sizeof "/proc/self/fd/" + sizeof (int) * 3]; - __snprintf (buf, sizeof (buf), "/proc/self/fd/%d", fd); - - /* We do not need the return value. */ - __execve (buf, argv, envp); - - int save = errno; - - /* We come here only if the 'execve' call fails. Determine whether - /proc is mounted. If not we return ENOSYS. */ - struct stat st; - if (stat ("/proc/self/fd", &st) != 0 && errno == ENOENT) - save = ENOSYS; - - __set_errno (save); - - return -1; -} |