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a72ddc1424
This automatically-generated patch converts 24 function definitions in glibc from old-style K&R to prototype-style. Following my other recent such patches, this one deals with the case of functions with array parameters. Tested for x86_64 and x86 (testsuite, and that installed stripped shared libraries are unchanged by the patch). * crypt/cert.c (main): Convert to prototype-style function definition. * io/pipe.c (__pipe): Likewise. * io/pipe2.c (__pipe2): Likewise. * misc/futimesat.c (futimesat): Likewise. * misc/utimes.c (__utimes): Likewise. * posix/execve.c (__execve): Likewise. * posix/execvp.c (execvp): Likewise. * posix/execvpe.c (__execvpe): Likewise. * posix/fexecve.c (fexecve): Likewise. * socket/socketpair.c (socketpair): Likewise. * stdlib/drand48-iter.c (__drand48_iterate): Likewise. * stdlib/erand48.c (erand48): Likewise. * stdlib/erand48_r.c (__erand48_r): Likewise. * stdlib/jrand48.c (jrand48): Likewise. * stdlib/jrand48_r.c (__jrand48_r): Likewise. * stdlib/lcong48.c (lcong48): Likewise. * stdlib/lcong48_r.c (__lcong48_r): Likewise. * stdlib/nrand48.c (nrand48): Likewise. * stdlib/nrand48_r.c (__nrand48_r): Likewise. * stdlib/seed48.c (seed48): Likewise. * stdlib/seed48_r.c (__seed48_r): Likewise. * sysdeps/mach/hurd/execve.c (__execve): Likewise. * sysdeps/mach/hurd/utimes.c (__utimes): Likewise. * sysdeps/unix/sysv/linux/fexecve.c (fexecve): Likewise.
56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
/* Copyright (C) 1994-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/stat.h>
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/* Execute the file FD refers to, overlaying the running program image.
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ARGV and ENVP are passed to the new program, as for `execve'. */
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int
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fexecve (int fd, char *const argv[], char *const envp[])
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{
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if (fd < 0 || argv == NULL || envp == NULL)
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{
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__set_errno (EINVAL);
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return -1;
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}
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/* We use the /proc filesystem to get the information. If it is not
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mounted we fail. */
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char buf[sizeof "/proc/self/fd/" + sizeof (int) * 3];
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__snprintf (buf, sizeof (buf), "/proc/self/fd/%d", fd);
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/* We do not need the return value. */
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__execve (buf, argv, envp);
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int save = errno;
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/* We come here only if the 'execve' call fails. Determine whether
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/proc is mounted. If not we return ENOSYS. */
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struct stat st;
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if (stat ("/proc/self/fd", &st) != 0 && errno == ENOENT)
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save = ENOSYS;
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__set_errno (save);
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return -1;
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}
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