}
filelen = lseek(fd, (off_t)0L, SEEK_END);
- if (filelen < 0)
+ if (filelen < 0) {
+ close(fd);
return NULL;
- if (lseek(fd, (off_t)0L, SEEK_SET) < 0)
+ }
+ if (lseek(fd, (off_t)0L, SEEK_SET) < 0) {
+ close(fd);
return NULL;
+ }
if (filelen < 0) {
SILC_LOG_ERROR(("Cannot open file %s: %s", filename, strerror(errno)));
+ close(fd);
return NULL;
}
if ((write(fd, buffer, len)) == -1) {
SILC_LOG_ERROR(("Cannot write to file %s: %s", filename, strerror(errno)));
+ close(fd);
return -1;
}
if ((write(fd, buffer, len)) == -1) {
SILC_LOG_ERROR(("Cannot write to file %s: %s", filename, strerror(errno)));
+ close(fd);
return -1;
}
return realname;
}
-/* Basic has function to hash strings. May be used with the SilcHashTable. */
+/* Basic has function to hash strings. May be used with the SilcHashTable.
+ Note that this lowers the characters of the string (with tolower()) so
+ this is used usually with nicknames, channel and server names to provide
+ case insensitive keys. */
-uint32 silc_hash_string(void *key)
+uint32 silc_hash_string(void *key, void *user_context)
{
char *s = (char *)key;
uint32 h = 0, g;
while (*s != '\0') {
- h = (h << 4) + toupper(*s);
+ h = (h << 4) + tolower(*s);
if ((g = h & 0xf0000000)) {
h = h ^ (g >> 24);
h = h ^ g;
/* Basic hash function to hash integers. May be used with the SilcHashTable. */
-uint32 silc_hash_uint(void *key)
+uint32 silc_hash_uint(void *key, void *user_context)
{
return *(uint32 *)key;
}
/* Basic hash funtion to hash pointers. May be used with the SilcHashTable. */
-uint32 silc_hash_ptr(void *key)
+uint32 silc_hash_ptr(void *key, void *user_context)
{
return (uint32)key;
}
-/* Hash a Server ID. */
+/* Hash a ID. The `user_context' is the ID type. */
-uint32 silc_hash_server_id(void *key)
+uint32 silc_hash_id(void *key, void *user_context)
{
- SilcServerID *id = (SilcServerID *)key;
+ SilcIdType id_type = (SilcIdType)(uint32)user_context;
+ uint32 h = 0;
int i;
- uint32 h;
- h = id->port * id->rnd;
- for (i = 0; i < id->ip.data_len; i++)
- h ^= id->ip.data[i];
+ switch (id_type) {
+ case SILC_ID_CLIENT:
+ {
+ SilcClientID *id = (SilcClientID *)key;
+ uint32 g;
+
+ /* The client ID is hashed by hashing the hash of the ID
+ (which is a truncated MD5 hash of the nickname) so that we
+ can access the entry from the cache with both Client ID but
+ with just a hash from the ID as well. */
+
+ for (i = 0; i < sizeof(id->hash); i++) {
+ h = (h << 4) + id->hash[i];
+ if ((g = h & 0xf0000000)) {
+ h = h ^ (g >> 24);
+ h = h ^ g;
+ }
+ }
+
+ return h;
+ }
+ break;
+ case SILC_ID_SERVER:
+ {
+ SilcServerID *id = (SilcServerID *)key;
+
+ h = id->port * id->rnd;
+ for (i = 0; i < id->ip.data_len; i++)
+ h ^= id->ip.data[i];
+
+ return h;
+ }
+ break;
+ case SILC_ID_CHANNEL:
+ {
+ SilcChannelID *id = (SilcChannelID *)key;
+
+ h = id->port * id->rnd;
+ for (i = 0; i < id->ip.data_len; i++)
+ h ^= id->ip.data[i];
+
+ return h;
+ }
+ break;
+ default:
+ break;
+ }
return h;
}
-/* Hash a Client ID. */
+/* Hash binary data. The `user_context' is the data length. */
-uint32 silc_hash_client_id(void *key)
+uint32 silc_hash_data(void *key, void *user_context)
{
- SilcClientID *id = (SilcClientID *)key;
+ uint32 len = (uint32)user_context, h = 0;
+ unsigned char *data = (unsigned char *)key;
int i;
- uint32 h;
- h = id->rnd;
- for (i = 0; i < sizeof(id->hash); i++)
- h ^= id->hash[i];
- for (i = 0; i < id->ip.data_len; i++)
- h ^= id->ip.data[i];
+ h = (data[0] * data[len - 1] + 1) * len;
+ for (i = 0; i < len; i++)
+ h ^= data[i];
return h;
}
-/* Hash a Channel ID. */
+/* Compares two strings. May be used as SilcHashTable comparison function. */
-uint32 silc_hash_channel_id(void *key)
+bool silc_hash_string_compare(void *key1, void *key2, void *user_context)
{
- SilcChannelID *id = (SilcChannelID *)key;
- int i;
- uint32 h;
+ return !strcasecmp((char *)key1, (char *)key2);
+}
- h = id->port * id->rnd;
- for (i = 0; i < id->ip.data_len; i++)
- h ^= id->ip.data[i];
+/* Compares two ID's. May be used as SilcHashTable comparison function.
+ The Client ID's compares only the hash of the Client ID not any other
+ part of the Client ID. Other ID's are fully compared. */
- return h;
+bool silc_hash_id_compare(void *key1, void *key2, void *user_context)
+{
+ SilcIdType id_type = (SilcIdType)(uint32)user_context;
+ return (id_type == SILC_ID_CLIENT ?
+ SILC_ID_COMPARE_HASH((SilcClientID *)key1, (SilcClientID *)key2) :
+ SILC_ID_COMPARE_TYPE(key1, key2, id_type));
+}
+
+/* Compare two Client ID's entirely and not just the hash from the ID. */
+
+bool silc_hash_client_id_compare(void *key1, void *key2, void *user_context)
+{
+ return SILC_ID_COMPARE_TYPE(key1, key2, SILC_ID_CLIENT);
+}
+
+/* Compares binary data. May be used as SilcHashTable comparison function. */
+
+bool silc_hash_data_compare(void *key1, void *key2, void *user_context)
+{
+ uint32 len = (uint32)user_context;
+ return !memcmp(key1, key2, len);
+}
+
+/* Parses mode mask and returns the mode as string. */
+
+char *silc_client_chmode(uint32 mode, const char *cipher, const char *hmac)
+{
+ char string[100];
+
+ if (!mode)
+ return NULL;
+
+ memset(string, 0, sizeof(string));
+
+ if (mode & SILC_CHANNEL_MODE_PRIVATE)
+ strncat(string, "p", 1);
+
+ if (mode & SILC_CHANNEL_MODE_SECRET)
+ strncat(string, "s", 1);
+
+ if (mode & SILC_CHANNEL_MODE_PRIVKEY)
+ strncat(string, "k", 1);
+
+ if (mode & SILC_CHANNEL_MODE_INVITE)
+ strncat(string, "i", 1);
+
+ if (mode & SILC_CHANNEL_MODE_TOPIC)
+ strncat(string, "t", 1);
+
+ if (mode & SILC_CHANNEL_MODE_ULIMIT)
+ strncat(string, "l", 1);
+
+ if (mode & SILC_CHANNEL_MODE_PASSPHRASE)
+ strncat(string, "a", 1);
+
+ if (mode & SILC_CHANNEL_MODE_FOUNDER_AUTH)
+ strncat(string, "f", 1);
+
+ if (mode & SILC_CHANNEL_MODE_CIPHER)
+ strncat(string, cipher, strlen(cipher));
+
+ if (mode & SILC_CHANNEL_MODE_HMAC)
+ strncat(string, hmac, strlen(hmac));
+
+ /* Rest of mode is ignored */
+
+ return strdup(string);
+}
+
+/* Parses channel user mode mask and returns te mode as string */
+
+char *silc_client_chumode(uint32 mode)
+{
+ char string[4];
+
+ if (!mode)
+ return NULL;
+
+ memset(string, 0, sizeof(string));
+
+ if (mode & SILC_CHANNEL_UMODE_CHANFO)
+ strncat(string, "f", 1);
+
+ if (mode & SILC_CHANNEL_UMODE_CHANOP)
+ strncat(string, "o", 1);
+
+ return strdup(string);
+}
+
+/* Parses channel user mode and returns it as special mode character. */
+
+char *silc_client_chumode_char(uint32 mode)
+{
+ char string[4];
+
+ if (!mode)
+ return NULL;
+
+ memset(string, 0, sizeof(string));
+
+ if (mode & SILC_CHANNEL_UMODE_CHANFO)
+ strncat(string, "*", 1);
+
+ if (mode & SILC_CHANNEL_UMODE_CHANOP)
+ strncat(string, "@", 1);
+
+ return strdup(string);
}
projects / runtime.git / blobdiff