Annotation of prex/usr/lib/libc/gen/execle.c, Revision 1.1
1.1 ! nbrk 1: /*-
! 2: * Copyright (c) 1991, 1993
! 3: * The Regents of the University of California. All rights reserved.
! 4: *
! 5: * Redistribution and use in source and binary forms, with or without
! 6: * modification, are permitted provided that the following conditions
! 7: * are met:
! 8: * 1. Redistributions of source code must retain the above copyright
! 9: * notice, this list of conditions and the following disclaimer.
! 10: * 2. Redistributions in binary form must reproduce the above copyright
! 11: * notice, this list of conditions and the following disclaimer in the
! 12: * documentation and/or other materials provided with the distribution.
! 13: * 3. Neither the name of the University nor the names of its contributors
! 14: * may be used to endorse or promote products derived from this software
! 15: * without specific prior written permission.
! 16: *
! 17: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 20: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 27: * SUCH DAMAGE.
! 28: */
! 29:
! 30: #include <sys/cdefs.h>
! 31: #include <stdarg.h>
! 32: #include <stdlib.h>
! 33: #include <unistd.h>
! 34:
! 35: int
! 36: execle(const char *name, const char *arg, ...)
! 37: {
! 38: #if defined(__i386__) || defined(__m68k__) || defined(__ns32k__)
! 39: va_list ap;
! 40: char **envp;
! 41:
! 42: va_start(ap, arg);
! 43: while ((va_arg(ap, char *)) != NULL)
! 44: ;
! 45: envp = va_arg(ap, char **);
! 46: va_end(ap);
! 47:
! 48: return execve(name, (char **) &arg, envp);
! 49: #else
! 50: va_list ap;
! 51: char **argv, **envp;
! 52: int i;
! 53:
! 54: va_start(ap, arg);
! 55: for (i = 2; va_arg(ap, char *) != NULL; i++)
! 56: ;
! 57: va_end(ap);
! 58:
! 59: argv = alloca (i * sizeof (char *));
! 60:
! 61: va_start(ap, arg);
! 62: argv[0] = (char *) arg;
! 63: for (i = 1; (argv[i] = (char *) va_arg(ap, char *)) != NULL; i++)
! 64: ;
! 65: envp = (char **) va_arg(ap, char **);
! 66: va_end(ap);
! 67:
! 68: return execve(name, argv, envp);
! 69: #endif
! 70: }
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