getpwnam

mactonish

#include <stdio.h>#include <pwd.h>int main(){        struct passwd * pw;        char *username = "apple";        pw = getpwnam(username);        if (!pw) {                printf("%s is not exist\n", username);                return -1;        }        printf("pw->pw_name = %s\n", pw->pw_name);        printf("pw->pw_passwd = %s\n", pw->pw_passwd);        printf("pw->pw_uid = %d\n", pw->pw_uid);        printf("pw->pw_gid = %d\n", pw->pw_gid);        printf("pw->pw_gecos = %s\n", pw->pw_gecos);        printf("pw->pw_dir = %s\n", pw->pw_dir);        printf("pw->pw_shell = %s\n", pw->pw_shell);}