Map DBUS specific errors to Avahi counterparts

git-svn-id: file:///home/lennart/svn/public/avahi/trunk@1026 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe

5 files changed, 44 insertions, 5 deletions

diff --git a/avahi-client/client.c b/avahi-client/client.c
index 54d19e5..3c86bd6 100644
--- a/avahi-client/client.c
+++ b/avahi-client/client.c
@@ -544,8 +544,13 @@ fail:
 
     if (dbus_error_is_set(&error)) {
 
-        if (ret_error)
-            *ret_error = avahi_error_dbus_to_number(error.name);
+        if (ret_error) {
+            if (strcmp(error.name, DBUS_ERROR_FILE_NOT_FOUND) == 0)
+                /* DBUS returns this error when the DBUS daemon is not running */
+                *ret_error = AVAHI_ERR_NO_DAEMON;
+            else
+                *ret_error = avahi_error_dbus_to_number(error.name);
+        }
         
         dbus_error_free(&error);
     }
diff --git a/avahi-common/dbus.c b/avahi-common/dbus.c
index fc4b34b..8140164 100644
--- a/avahi-common/dbus.c
+++ b/avahi-common/dbus.c
@@ -86,11 +86,36 @@ static const char * const table[- AVAHI_ERR_MAX] = {
     AVAHI_DBUS_ERR_INVALID_DNS_TYPE,
     AVAHI_DBUS_ERR_NOT_SUPPORTED,
 
-    AVAHI_DBUS_ERR_NOT_PERMITTED
+    AVAHI_DBUS_ERR_NOT_PERMITTED,
+    AVAHI_DBUS_ERR_INVALID_ARGUMENT
+};
+
+struct error_map {
+    const char *dbus_error;
+    int avahi_error;
+};
+
+static struct error_map error_map[] = {
+    { DBUS_ERROR_FAILED,           AVAHI_ERR_FAILURE },
+    { DBUS_ERROR_NO_MEMORY,        AVAHI_ERR_NO_MEMORY },
+    { DBUS_ERROR_SERVICE_UNKNOWN,  AVAHI_ERR_NO_DAEMON },
+    { DBUS_ERROR_BAD_ADDRESS,      AVAHI_ERR_NO_DAEMON },
+    { DBUS_ERROR_NOT_SUPPORTED,    AVAHI_ERR_NOT_SUPPORTED },
+    { DBUS_ERROR_LIMITS_EXCEEDED,  AVAHI_ERR_TOO_MANY_OBJECTS },
+    { DBUS_ERROR_ACCESS_DENIED,    AVAHI_ERR_ACCESS_DENIED },
+    { DBUS_ERROR_AUTH_FAILED,      AVAHI_ERR_ACCESS_DENIED },
+    { DBUS_ERROR_NO_SERVER,        AVAHI_ERR_NO_DAEMON },
+    { DBUS_ERROR_TIMEOUT,          AVAHI_ERR_TIMEOUT },
+    { DBUS_ERROR_NO_NETWORK,       AVAHI_ERR_NO_NETWORK },
+    { DBUS_ERROR_DISCONNECTED,     AVAHI_ERR_DISCONNECTED },
+    { DBUS_ERROR_INVALID_ARGS,     AVAHI_ERR_INVALID_ARGUMENT },
+    { DBUS_ERROR_TIMED_OUT,        AVAHI_ERR_TIMEOUT },
+    { NULL, 0 }
 };
 
 int avahi_error_dbus_to_number(const char *s) {
     int e;
+    const struct error_map *m;
 
     assert(s);
 
@@ -98,6 +123,10 @@ int avahi_error_dbus_to_number(const char *s) {
         if (strcmp(s, table[-e]) == 0)
             return e;
 
+    for (m = error_map; m->dbus_error; m++)
+        if (strcmp(m->dbus_error, s) == 0)
+            return m->avahi_error;
+    
     return AVAHI_ERR_DBUS_ERROR;
 }
 
diff --git a/avahi-common/dbus.h b/avahi-common/dbus.h
index 790fc3c..eb29581 100644
--- a/avahi-common/dbus.h
+++ b/avahi-common/dbus.h
@@ -95,7 +95,10 @@ AVAHI_C_DECL_BEGIN
 #define AVAHI_DBUS_ERR_INVALID_DNS_CLASS "org.freedesktop.Avahi.InvalidDNSClassError"
 #define AVAHI_DBUS_ERR_INVALID_DNS_TYPE "org.freedesktop.Avahi.InvalidDNSTypeError"
 #define AVAHI_DBUS_ERR_NOT_SUPPORTED "org.freedesktop.Avahi.NotSupportedError"
+
 #define AVAHI_DBUS_ERR_NOT_PERMITTED "org.freedesktop.Avahi.NotPermittedError"
+#define AVAHI_DBUS_ERR_INVALID_ARGUMENT "org.freedesktop.Avahi.InvalidArgument"
+
 
 /** Convert a DBus error string into an Avahi error number */
 int avahi_error_dbus_to_number(const char *s);
diff --git a/avahi-common/error.c b/avahi-common/error.c
index 6c0a900..6fe981c 100644
--- a/avahi-common/error.c
+++ b/avahi-common/error.c
@@ -83,7 +83,8 @@ const char *avahi_strerror(int error) {
         "Invalid DNS class",
         "Not supported",
 
-        "Not permitted"
+        "Not permitted",
+        "Invalid argument"
     };
 
     if (-error < 0 || -error >= -AVAHI_ERR_MAX)
diff --git a/avahi-common/error.h b/avahi-common/error.h
index d6c4620..8060ebc 100644
--- a/avahi-common/error.h
+++ b/avahi-common/error.h
@@ -86,6 +86,7 @@ enum {
     AVAHI_ERR_NOT_SUPPORTED = -49,           /**< Not supported */
     
     AVAHI_ERR_NOT_PERMITTED = -50,           /**< Operation not permitted */
+    AVAHI_ERR_INVALID_ARGUMENT = -51,        /**< Invalid argument */
     
     /****
      ****    IF YOU ADD A NEW ERROR CODE HERE, PLEASE DON'T FORGET TO ADD
@@ -95,7 +96,7 @@ enum {
      ****    Also remember to update the MAX value below.
      ****/
     
-    AVAHI_ERR_MAX = -51
+    AVAHI_ERR_MAX = -52
 };
 
 /** Return a human readable error string for the specified error code */