Verify user in /etc/passwd

This is a product of wonder.

In file verify.c

#include <stdio.h>
#include <string.h>
	
#define MAX_LENGTH	1024
	
int is_local(char *user)
{
        FILE *fd;
        char line[MAX_LENGTH];
        int local = 0;
	
        if(!(fd = fopen("/etc/passwd", "r"))) {
                puts("Can't read /etc/passwd, exiting.");
                exit(1);
        }
	
        while(fgets(line, MAX_LENGTH, fd) > 0) {
                if(!strncmp(line, user, strlen(user))) {
			local = 1;
			break;
                }
	}
	fclose(fd);
	return local;
}

Use at your own risk.

Disclaimer: Please refer to my first post ‘General notice’

Posted using Scott Yang’s mtsend.py python script. Thanks to Niel for his cool vim mappings.