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/*
* getpwent.c -- simulate getpwent() and setpwent()
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <pwd.h>
static struct passwd entries[] = {
{ .pw_name = (char *) "root", .pw_passwd = (char *) "x",
.pw_uid = 0, .pw_gid = 0, .pw_dir = (char *) "/",
.pw_shell = (char *) "/bin/sh" },
{ .pw_name = (char *) "fsgqa", .pw_passwd = (char *) "x",
.pw_uid = 31415, .pw_gid = 31415, .pw_dir = (char *) "/home/fsgqa",
.pw_shell = (char *) "/bin/sh" },
{ .pw_name = NULL, .pw_passwd = NULL, .pw_uid = 0, .pw_gid = 0,
.pw_dir = NULL, .pw_shell = NULL },
};
static struct passwd *current_pw;
struct passwd *getpwent(void)
{
if (current_pw == NULL)
current_pw = entries;
if (current_pw->pw_name == NULL) {
return NULL;
}
return current_pw++;
}
int setpwent(void)
{
current_pw = NULL;
}
#if 0
void endpwent(void)
{
current_pw = NULL;
}
#endif
#ifdef DEBUG
struct passwd *getpwnam(const char *name)
{
struct passwd *cur;
setpwent();
while ((cur = getpwent()) != NULL) {
if (strcmp(name, cur->pw_name) == 0)
return cur;
}
return NULL;
}
struct passwd *getpwuid(uid_t uid)
{
struct passwd *cur;
setpwent();
while ((cur = getpwent()) != NULL) {
if (uid == cur->pw_uid)
return cur;
}
return NULL;
}
static void print_passwd(struct passwd *pw)
{
if (pw == NULL)
printf("NULL entry\n");
else
printf("%s:%s:%d:%d:%s:%s:%s\n", pw->pw_name, pw->pw_passwd,
pw->pw_uid, pw->pw_gid, pw->pw_name, pw->pw_dir,
pw->pw_shell);
}
int main(int argc, char **argv)
{
struct passwd *pw;
int err;
pw = getpwnam("root");
print_passwd(pw);
if (!pw)
err++;
pw = getpwnam("fsgqa");
print_passwd(pw);
if (!pw)
err++;
pw = getpwnam("foo");
print_passwd(pw);
if (pw)
err++;
pw = getpwuid(0);
print_passwd(pw);
if (!pw)
err++;
pw = getpwuid(31415);
print_passwd(pw);
if (!pw)
err++;
pw = getpwuid(42);
print_passwd(pw);
if (pw)
err++;
if (err)
printf("Failed!\n");
else
printf("Succeeded!\n");
return err;
}
#endif
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