diff options
Diffstat (limited to 'kerberosIV/roken/simple_exec.c')
| -rw-r--r-- | kerberosIV/roken/simple_exec.c | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/kerberosIV/roken/simple_exec.c b/kerberosIV/roken/simple_exec.c deleted file mode 100644 index fe8766f712d..00000000000 --- a/kerberosIV/roken/simple_exec.c +++ /dev/null @@ -1,113 +0,0 @@ -/* $OpenBSD: simple_exec.c,v 1.1 1998/08/12 23:53:53 art Exp $ */ -/* $KTH: simple_exec.c,v 1.1 1998/03/19 19:41:19 joda Exp $ */ - -/* - * Copyright (c) 1998 Kungliga Tekniska Högskolan - * (Royal Institute of Technology, Stockholm, Sweden). - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Kungliga Tekniska - * Högskolan and its contributors. - * - * 4. Neither the name of the Institute nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <stdarg.h> -#include <stdlib.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <unistd.h> -#include <errno.h> - -#define EX_NOEXEC 126 -#define EX_NOTFOUND 127 - -/* return values: - -1 on `unspecified' system errors - -2 on fork failures - -3 on waitpid errors - 0- is return value from subprocess - 126 if the program couldn't be executed - 127 if the program couldn't be found - 128- is 128 + signal that killed subprocess - */ - -int -simple_execvp(const char *file, char *const args[]) -{ - pid_t pid = fork(); - switch(pid){ - case -1: - return -2; - case 0: - execvp(file, args); - exit((errno == ENOENT) ? EX_NOTFOUND : EX_NOEXEC); - default: - while(1) { - int status; - if(waitpid(pid, &status, 0) < 0) { - return -3; - } - if(WIFSTOPPED(status)) - continue; - if(WIFEXITED(status)) - return WEXITSTATUS(status); - if(WIFSIGNALED(status)) - return WTERMSIG(status) + 128; - } - } -} - -int -simple_execlp(const char *file, ...) -{ - va_list ap; - char **argv; - int argc, i; - - argc = i = 0; - va_start(ap, file); - do { - if(i == argc) { - char **tmp = realloc(argv, (argc + 5) * sizeof(*argv)); - if(tmp == NULL) { - errno = ENOMEM; - return -1; - } - argv = tmp; - argc += 5; - } - argv[i++] = va_arg(ap, char*); - } while(argv[i - 1] != NULL); - va_end(ap); - i = simple_execvp(file, argv); - free(argv); - return i; -} |