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replaced underscore with dash

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Serghey Rodin 2012-11-12 11:34:33 +02:00
commit d7e394094d
1 changed files with 85 additions and 0 deletions
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src/v-check-user-password.c Executable file
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/***************************************************************************/
/* v_check_user_password.c */
/* */
/* This program compare user pasword from input with /etc/shadow */
/* To compile run: */
/* "gcc -lcrypt v_check_user_password.c -o v-check-user-password" */
/* */
/* Thanks to: bogolt, richie and burus */
/* */
/***************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <pwd.h>
#include <shadow.h>
#include <time.h>
#include <string.h>
int main (int argc, char** argv) {
/* define ip */
char *ip = "127.0.0.1";
/* check argument list */
if (3 > argc) {
printf("Error: bad args\n",argv[0]);
printf("Usage: %s user password [ip]\n",argv[0]);
exit(1);
};
/* check ip */
if (4 <= argc) {
ip = (char*)malloc(strlen(argv[3]));
strcpy(ip, argv[3]);
}
/* format current time */
time_t lt = time(NULL);
struct tm* ptr = localtime(&lt);
char str[280];
strftime(str, 100, "%Y-%m-%d %H:%M:%S ", ptr);
/* open log file */
FILE* pFile = fopen ("/usr/local/vesta/log/auth.log","a+");
if (NULL == pFile) {
printf("Error: can not open file %s \n", argv[0]);
exit(12);
}
/* parse user argument */
struct passwd* userinfo = getpwnam(argv[1]);
if (NULL != userinfo) {
struct spwd* passw = getspnam(userinfo->pw_name);
if (NULL != passw) {
char* cryptedPasswrd = (char*)crypt(argv[2], passw->sp_pwdp);
if (strcmp(passw->sp_pwdp,crypt(argv[2],passw->sp_pwdp))==0) {
/* concatinate time with user and ip */
strcat(str, userinfo->pw_name);
strcat(str, " ");
strcat(str, ip);
strcat(str, " successfully logged in \n");
fputs (str,pFile); /* write */
fclose (pFile); /* close */
exit(EXIT_SUCCESS); /* exit */
} else {
/* concatinate time with user string */
printf ("Error: password missmatch\n");
strcat(str, userinfo->pw_name);
strcat(str, " ");
strcat(str, ip);
strcat(str, " failed to login \n");
fputs (str,pFile); /* write */
fclose (pFile); /* close */
exit(9); /* exit */
};
}
} else {
printf("Error: no such user\n",argv[1]);
exit(3);
};
return EXIT_SUCCESS;
};