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e294acdba8
This confers an >10x speedup on t/z-t/cmd builds (12s -> 1.1s), gets rid of 23 redundant identical automake specs and gitignores, and groups the binaries with their common headers Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: John Kennedy <john.kennedy@delphix.com> Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Closes #13259
78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <pwd.h>
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#define EXECSHELL "/bin/sh"
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int
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main(int argc, char *argv[])
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{
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char *plogin = NULL;
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char cmds[BUFSIZ] = { 0 };
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char sep[] = " ";
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struct passwd *ppw = NULL;
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int i, len;
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if (argc < 3 || strlen(argv[1]) == 0) {
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(void) printf("\tUsage: %s <login> <commands> ...\n", argv[0]);
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return (1);
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}
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plogin = argv[1];
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len = 0;
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for (i = 2; i < argc; i++) {
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(void) snprintf(cmds+len, sizeof (cmds)-len,
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"%s%s", argv[i], sep);
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len += strlen(argv[i]) + strlen(sep);
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}
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if ((ppw = getpwnam(plogin)) == NULL) {
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perror("getpwnam");
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return (errno);
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}
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if (setgid(ppw->pw_gid) != 0) {
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perror("setgid");
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return (errno);
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}
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if (setuid(ppw->pw_uid) != 0) {
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perror("setuid");
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return (errno);
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}
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if (execl(EXECSHELL, "sh", "-c", cmds, (char *)NULL) != 0) {
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perror("execl: " EXECSHELL);
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return (errno);
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}
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return (0);
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}
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