glibc/sysdeps/unix/sysv/linux/execveat.c

/* Execute program relative to a directory file descriptor.
   Copyright (C) 2021-2024 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
   <https://www.gnu.org/licenses/>.  */

#include <fd_to_filename.h>
#include <sysdep.h>
#include <unistd.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
execveat (int dirfd, const char *path, char *const argv[], char *const envp[],
          int flags)
{
  /* Avoid implicit array coercion in syscall macros.  */
  return INLINE_SYSCALL_CALL (execveat, dirfd, path, &argv[0], &envp[0],
			      flags);
}