hanez/chkusr
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Added -V to show the program version. Updated to 1.0.3.

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This commit is contained in:
Johannes Findeisen 2024-08-28 02:05:27 +02:00
commit a1f63c428c
2 changed files with 15 additions and 15 deletions
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2
README.md
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@ -1,4 +1,4 @@
# checkpw - 1.0.2!
# checkpw
checkpw is a program that checks the validity of a users password on a Linux/PAM-based system.

28
checkpw.c
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@ -2,19 +2,7 @@
* checkpw is a program that checks the validity of a users password on a
* Linux/PAM-based system.
*
* Usage: checkpw [-u <username>] [-p <password>] [-i] [-v] [-h]
*
* Options:
* -u <username> Specify username.
* -p <password> Specify password.
* -i Enable interactive mode to prompt for missing username/password.
* -v Enable verbose mode.
* -h Show this help.
*
* Returns 0 on success, 1 otherwise.
*
* Author: Johannes Findeisen <you@hanez.org>
* Version: 1.0.2
* Author: Johannes Findeisen <you@hanez.org> - 2024
* License: MIT (see LICENSE)
*/
@ -39,6 +27,8 @@
#define MIN_UID 1000
#endif
#define VERSION 1_0_3
// Custom data structure to hold user-entered password
struct pam_credentials {
const char *password;
@ -169,18 +159,20 @@ void print_usage(const char *prog_name) {
fprintf(stderr, " -p <password> Specify password.\n");
fprintf(stderr, " -i Enable interactive mode to prompt for missing username/password.\n");
fprintf(stderr, " -v Enable verbose mode.\n");
fprintf(stderr, " -V Show version.\n");
fprintf(stderr, " -h Show this help.\n");
}
int main(int argc, char *argv[]) {
bool interactive = false;
bool verbose = false;
bool version = false;
char username[MAX_USERNAME_LEN] = {0};
char password[MAX_PASSWORD_LEN] = {0};
int opt;
// Parse command-line arguments
while ((opt = getopt(argc, argv, "u:p:hiv")) != -1) {
while ((opt = getopt(argc, argv, "u:p:hivV")) != -1) {
switch (opt) {
case 'u':
if (strlen(optarg) >= MAX_USERNAME_LEN) {
@ -205,12 +197,20 @@ int main(int argc, char *argv[]) {
case 'v':
verbose = true;
break;
case 'V':
version = true;
break;
default:
print_usage(argv[0]);
exit(1);
}
}
if (version) {
printf("1.0.3\n");
exit(0);
}
// If interactive mode is enabled, prompt for missing username and/or password
if (interactive) {
if (username[0] == '\0') {