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c41f555e0c
execl, execle, execlp, execvp, getpid, getsid. * sysdeps/generic/alarm.c: Add libc_hidden_def. * sysdeps/unix/alarm.c: Likewise. * posix/confstr.c: Likewise. * posix/execvp.c: Likewise. * posix/execlp.c: Likewise. * posix/execle.c: Likewise. * posix/execl.c: Likewise. * sysdeps/generic/getsid.c: Likewise. * sysdeps/mach/hurd/getsid.c: Likewise. * sysdeps/generic/getpid.c: Add libc_hidden_weak. * sysdeps/mach/hurd/getpid.c: Likewise. * include/stdlib.h: Use libc_hidden_proto for ecvt_r, fcvt_r, qecvt_r, qfcvt_r, lrand48_r. * misc/efgcvt_r.c: Add libc_hidden_def. * include/wordexp.h: Use libc_hidden_proto for wordfree. * sysdeps/generic/wordexp.c: Add libc_hidden_def. * include/langinfo.h: Use libc_hidden_proto for nl_langinfo. * locale/nl_langinfo.c: Add libc_hidden_def. * include/glob.h: Use libc_hidden_proto for glob, globfree, globfree64. * sysdeps/generic/glob.c: Add libc_hidden_def. * sysdeps/generic/glob64.c: Likewise. * sysdeps/wordsize-64/glob.c (globfree64): Add libc_hidden_weak.
77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
/* Copyright (C) 1991,97,98,99,2002 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <alloca.h>
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#include <unistd.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <string.h>
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#include <stackinfo.h>
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/* Execute PATH with all arguments after PATH until a NULL pointer,
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and the argument after that for environment. */
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int
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execle (const char *path, const char *arg, ...)
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{
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size_t argv_max = 1024;
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const char **argv = alloca (argv_max * sizeof (const char *));
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const char *const *envp;
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unsigned int i;
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va_list args;
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argv[0] = arg;
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va_start (args, arg);
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i = 0;
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while (argv[i++] != NULL)
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{
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if (i == argv_max)
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{
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const char **nptr = alloca ((argv_max *= 2) * sizeof (const char *));
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#ifndef _STACK_GROWS_UP
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if ((char *) nptr + argv_max == (char *) argv)
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{
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/* Stack grows down. */
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argv = (const char **) memcpy (nptr, argv,
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i * sizeof (const char *));
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argv_max += i;
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}
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else
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#endif
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#ifndef _STACK_GROWS_DOWN
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if ((char *) argv + i == (char *) nptr)
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/* Stack grows up. */
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argv_max += i;
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else
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#endif
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/* We have a hole in the stack. */
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argv = (const char **) memcpy (nptr, argv,
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i * sizeof (const char *));
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}
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argv[i] = va_arg (args, const char *);
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}
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envp = va_arg (args, const char *const *);
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va_end (args);
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return __execve (path, (char *const *) argv, (char *const *) envp);
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}
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libc_hidden_def (execle)
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