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/*
* vercmp.c
*
* Copyright (c) 2006-2010 Pacman Development Team <pacman-dev@archlinux.org>
* Copyright (c) 2002-2005 by Judd Vinet <jvinet@zeroflux.org>
*
* 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 2 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/>.
*/
#include "config.h"
#include <stdio.h> /* printf */
#include <string.h> /* strncpy */
#include <alpm.h>
#define BASENAME "vercmp"
#define MAX_LEN 255
static void usage()
{
fprintf(stderr, "usage: %s <ver1> <ver2>\n\n", BASENAME);
fprintf(stderr, "return values:\n");
fprintf(stderr, " < 0 : if ver1 < ver2\n");
fprintf(stderr, " 0 : if ver1 == ver2\n");
fprintf(stderr, " > 0 : if ver1 > ver2\n");
}
int main(int argc, char *argv[])
{
char s1[MAX_LEN] = "";
char s2[MAX_LEN] = "";
int ret;
if(argc == 1) {
usage();
return(2);
}
if(argc > 1 &&
(strcmp(argv[1], "-h") == 0 || strcmp(argv[1], "--help") == 0
|| strcmp(argv[1], "--usage") == 0)) {
usage();
return(0);
}
if(argc > 1) {
strncpy(s1, argv[1], MAX_LEN);
s1[MAX_LEN -1] = '\0';
}
if(argc > 2) {
strncpy(s2, argv[2], MAX_LEN);
s2[MAX_LEN -1] = '\0';
} else {
printf("0\n");
return(0);
}
ret = alpm_pkg_vercmp(s1, s2);
printf("%d\n", ret);
return(ret);
}
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