Initial patch for authenticated printing. Requires LaserWriter 8.5.1 or

[netatalk.git] / etc / uams / uams_passwd.c

diff --git a/etc/uams/uams_passwd.c b/etc/uams/uams_passwd.c
index 67699a973eee321b0f16a5be3f9cb356913f67e8..3d97959bfed5638524a9cf5a830cd854339666cd 100644 (file)
--- a/etc/uams/uams_passwd.c
+++ b/etc/uams/uams_passwd.c
@@ -130,20 +130,118 @@ static int passwd_changepw(void *obj, char *username,
 }
 #endif
 
+
+/* Printer ClearTxtUAM login */
+static int passwd_printer(start, stop, username, out)
+       char    *start, *stop, *username;
+       struct papfile  *out;
+{
+    struct passwd *pwd;
+#ifdef SHADOWPW
+    struct spwd *sp;
+#endif
+    char *data, *p, *q;
+    char       password[PASSWDLEN + 1] = "\0";
+    static const char *loginok = "0\r";
+    int ulen;
+
+    data = (char *)malloc(stop - start + 1);
+    strncpy(data, start, stop - start + 1);
+
+    /* We are looking for the following format in data:
+     * (username) (password)
+     *
+     * Let's hope username doesn't contain ") ("!
+     */
+
+    /* Parse input for username in () */
+    if ((p = strchr(data, '(' )) == NULL) {
+        syslog(LOG_INFO,"Bad Login ClearTxtUAM: username not found in string");
+        free(data);
+        return(-1);
+    }
+    p++;
+    if ((q = strstr(data, ") (" )) == NULL) {
+        syslog(LOG_INFO,"Bad Login ClearTxtUAM: username not found in string");
+        free(data);
+        return(-1);
+    }
+    strncpy(username, p, q - p);
+
+    /* Parse input for password in next () */
+    p = q + 3;
+    if ((q = strrchr(data, ')' )) == NULL) {
+        syslog(LOG_INFO,"Bad Login ClearTxtUAM: password not found in string");
+       free(data);
+        return(-1);
+    }
+    strncpy(password, p, q - p);
+
+    /* Done copying username and password, clean up */
+    free(data);
+
+    ulen = strlen(username);
+
+    if (( pwd = uam_getname(username, ulen)) == NULL ) {
+       syslog(LOG_INFO, "Bad Login ClearTxtUAM: ( %s ) not found ",
+                       username);
+       return(-1);
+    }
+
+    if (uam_checkuser(pwd) < 0) {
+       /* syslog of error happens in uam_checkuser */
+       return(-1);
+    }
+
+#ifdef SHADOWPW
+    if (( sp = getspnam( pwd->pw_name )) == NULL ) {
+       syslog(LOG_INFO, "Bad Login ClearTxtUAM: no shadow passwd entry for %s", 
+                       username);
+       return(-1);
+    }
+    pwd->pw_passwd = sp->sp_pwdp;
+#endif SHADOWPW
+
+    if (!pwd->pw_passwd) {
+       syslog(LOG_INFO, "Bad Login ClearTxtUAM: no password for %s",
+                       username);
+       return(-1);
+    }
+
+#ifdef AFS
+    if ( kcheckuser( pwd, password) == 0) 
+      return(0);
+#endif AFS
+
+    p = crypt(password, pwd->pw_passwd);
+    if (strcmp(p, pwd->pw_passwd) != 0) {
+       syslog(LOG_INFO, "Bad Login ClearTxtUAM: %s: bad password", username);
+       return(-1);
+    }
+
+    /* Login successful */
+    append(out, loginok, strlen(loginok));
+    syslog(LOG_INFO, "Login ClearTxtUAM: %s", username);
+    return(0);
+}
+
+
 static int uam_setup(const char *path)
 {
-  if (uam_register(UAM_SERVER_LOGIN, path, 
-              "Cleartxt Passwrd", passwd_login, NULL, NULL) < 0)
-    return -1;
-  /*uam_register(UAM_SERVER_PRINTAUTH, path, "Cleartxt Passwrd",
-    passwd_printer);*/
+  if (uam_register(UAM_SERVER_LOGIN, path, "Cleartxt Passwrd", 
+               passwd_login, NULL, NULL) < 0)
+       return -1;
+  if (uam_register(UAM_SERVER_PRINTAUTH, path, "ClearTxtUAM",
+               passwd_printer) < 0)
+       return -1;
+
   return 0;
 }
 
 static void uam_cleanup(void)
 {
   uam_unregister(UAM_SERVER_LOGIN, "Cleartxt Passwrd");
-  /*uam_unregister(UAM_SERVER_PRINTAUTH, "Cleartxt Passwrd"); */
+  uam_unregister(UAM_SERVER_PRINTAUTH, "ClearTxtUAM");
 }
 
 UAM_MODULE_EXPORT struct uam_export uams_clrtxt = {