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kommentar kanske, minns ej

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This commit is contained in:
parken 2022-01-31 19:02:53 +01:00
parent 383abfc185
commit 51880f5428
1 changed files with 6 additions and 6 deletions
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12
lab1/login_linux.c
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@ -93,7 +93,7 @@ int main(int argc, char *argv[]) {
////////////////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////////////////
// using termios instead of the outdated getpass // using termios instead of the outdated getpass for a more secure program
// user_pass = getpass(prompt); // user_pass = getpass(prompt);
struct termios old_term_flags, new_term_flags; struct termios old_term_flags, new_term_flags;
@ -151,30 +151,30 @@ int main(int argc, char *argv[]) {
if (!strcmp(user_pass_encrypted, passwddata->passwd)) { if (!strcmp(user_pass_encrypted, passwddata->passwd)) {
// successfull login // successfull login
printf("\n%d failed attemts to login \n",passwddata->pwfailed);
passwddata->pwfailed = 0; passwddata->pwfailed = 0;
passwddata->pwage = passwddata->pwage + 1; passwddata->pwage = passwddata->pwage + 1;
if (mysetpwent(user, passwddata) < 0) { if (mysetpwent(user, passwddata) < 0) {
perror("Error");exit(EXIT_FAILURE); perror("Error");exit(EXIT_FAILURE);
} }
if (passwddata->pwage > 100) { if (passwddata->pwage > 10) {
printf(" Your password is OLD!!!!\n"); printf("You need to change your password !\n");
// TODO // TODO
} }
/* check UID, see setuid(2) */ /* check UID, see setuid(2) */
if (setuid(passwddata->uid) < 0) { if (setuid(passwddata->uid) < 0) {
printf(" always here !\n");
perror("Error");exit(EXIT_FAILURE); perror("Error");exit(EXIT_FAILURE);
// TODO kommer alltid bara hit
} }
printf(" cant get here !\n");
/* start a shell, use execve(2) */ /* start a shell, use execve(2) */
if (execve("/bin/bash",NULL,NULL) < 0) { if (execve("/bin/bash",NULL,NULL) < 0) {
perror("Error");exit(EXIT_FAILURE); perror("Error");exit(EXIT_FAILURE);
} }
printf("\nWelcome to this system !\n");
} }
else { else {
// user name exists but password does not match // user name exists but password does not match