int main(int argc, char **argv)
{
struct user_details *info = NULL;
char *cmd = NULL;
info = (struct user_details*)malloc(sizeof(struct user_details));
get_user_details(info);
while(TRUE)
{
getTimes = FALSE;
sentToBackground = FALSE;
fprintf(stdout,"%s@csd_sh%s/# ",info->user_name,info->working_dir);
cmd = strdup(get_command());
execute_command(cmd);
free(cmd);
}
exit(EXIT_SUCCESS);
}
//change the user to passed user for executing/killing tasks
int change_user(const char * user) {
if (get_user_details(user) < 0) {
return -1;
}
#ifdef DEBUG
fprintf(LOGFILE,"change_user : setting user as %s ", user_detail->pw_name);
#endif
errno = 0;
setgid(user_detail->pw_gid);
if (errno != 0) {
fprintf(LOGFILE, "unable to setgid : %s\n", strerror(errno));
cleanup();
return SETUID_OPER_FAILED;
}
setegid(user_detail->pw_gid);
if (errno != 0) {
fprintf(LOGFILE, "unable to setegid : %s\n", strerror(errno));
cleanup();
return SETUID_OPER_FAILED;
}
setuid(user_detail->pw_uid);
if (errno != 0) {
fprintf(LOGFILE, "unable to setuid : %s\n", strerror(errno));
cleanup();
return SETUID_OPER_FAILED;
}
seteuid(user_detail->pw_uid);
if (errno != 0) {
fprintf(LOGFILE, "unable to seteuid : %s\n", strerror(errno));
cleanup();
return SETUID_OPER_FAILED;
}
return 0;
}
