How to capture password in c
Hi
I'm new to c. What I'm trying to do is much like httpd ssl. I'm trying to create a simple daemon where it will ask for a password/passphrase, and then check the password using pam. If the password/passphrase is wrong then the program should fail.
My simple question is how do I do this?
The full source code that I currently have is:
Code:
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <syslog.h>
#include <string.h>
int main(void) {
/* Our process ID and Session ID */
pid_t pid, sid;
FILE *fin;
int fwt;
int c;
#define BUFFER_LENGTH 50
char line[BUFFER_LENGTH];
/* Fork off the parent process */
pid = fork();
if (pid < 0) {
exit(EXIT_FAILURE);
}
/* If we got a good PID, then
we can exit the parent process. */
if (pid > 0) {
exit(EXIT_SUCCESS);
}
/* Change the file mode mask */
umask(0);
/* Open any logs here */
/* Create a new SID for the child process */
sid = setsid();
if (sid < 0) {
/* Log the failure */
exit(EXIT_FAILURE);
}
/* Change the current working directory */
if ((chdir("/")) < 0) {
/* Log the failure */
exit(EXIT_FAILURE);
}
/* Close out the standard file descriptors */
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
/* Daemon-specific initialization goes here */
/* The Big Loop */
printf ("hello");
while (1) {
printf ("hello");
/* Do some task here ... */
fin=fopen("/tmp/check","w");
fwt=fprintf(fin,"hello");
fclose(fin);
//while (getc(stdin) != NULL){
fgets(line,BUFSIZ,stdin);
printf("hello");
printf("error code is: %d\n",fwt);
sleep(30); /* wait 30 seconds */
}
exit(EXIT_SUCCESS);
Thanks in advance for your help
Dan
