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/* Copyright (C) 2014 Luke Shumaker <lukeshu@sbcglobal.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define _GNU_SOURCE /* for unsetenv(3) */
#include <alloca.h> /* for alloca(3) */
#include <errno.h> /* for errno */
#include <error.h> /* for error(3) */
#include <pwd.h> /* for getpwuid(3) */
#include <stdio.h> /* for printf(3) */
#include <stdlib.h> /* for unsetenv(3) */
#include <string.h> /* for strlen(3), strcpy(3) */
#include <unistd.h> /* for dup2(3), geteuid(3), execl(3) */
void
usage(const char *cmd)
{
printf("Usage: %s PACKAGE\n", cmd);
printf("This command should be run from the git directory of the package source.");
}
int
main(int argc, char **argv)
{
if (argc != 2) {
dup2(2,1);
usage(argv[0]);
return 1;
}
const char *home = getpwuid(geteuid())->pw_dir;
const char *script_suffix = "/bin/autobuild.sh";
char *script = alloca(strlen(home)+strlen(script_suffix));
strcpy(script, home);
strcpy(&(script[strlen(home)]), script_suffix);
unsetenv("IFS");
unsetenv("PATH");
unsetenv("LD_PRELOAD");
unsetenv("BASH_ENV");
execl(script, script, argv[1], NULL);
error(127, errno, "%s", script);
}
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