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-rw-r--r--avahi-core/rr.c256
1 files changed, 153 insertions, 103 deletions
diff --git a/avahi-core/rr.c b/avahi-core/rr.c
index 4ec3c11..821ca8f 100644
--- a/avahi-core/rr.c
+++ b/avahi-core/rr.c
@@ -28,104 +28,125 @@
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
+#include <assert.h>
#include <avahi-common/domain.h>
+#include <avahi-common/malloc.h>
+
#include "rr.h"
+#include "log.h"
+#include "util.h"
-AvahiKey *avahi_key_new(const gchar *name, guint16 class, guint16 type) {
+AvahiKey *avahi_key_new(const char *name, uint16_t class, uint16_t type) {
AvahiKey *k;
- g_assert(name);
+ assert(name);
- k = g_new(AvahiKey, 1);
+ if (!(k = avahi_new(AvahiKey, 1))) {
+ avahi_log_error("avahi_new() failed.");
+ return NULL;
+ }
+
+ if (!(k->name = avahi_normalize_name(name))) {
+ avahi_log_error("avahi_normalize_name() failed.");
+ avahi_free(k);
+ return NULL;
+ }
+
k->ref = 1;
- k->name = avahi_normalize_name(name);
k->clazz = class;
k->type = type;
-/* g_message("%p %% ref=1", k); */
-
return k;
}
AvahiKey *avahi_key_ref(AvahiKey *k) {
- g_assert(k);
- g_assert(k->ref >= 1);
+ assert(k);
+ assert(k->ref >= 1);
k->ref++;
-/* g_message("%p ++ ref=%i", k, k->ref); */
-
return k;
}
void avahi_key_unref(AvahiKey *k) {
- g_assert(k);
- g_assert(k->ref >= 1);
-
-/* g_message("%p -- ref=%i", k, k->ref-1); */
+ assert(k);
+ assert(k->ref >= 1);
if ((--k->ref) <= 0) {
- g_free(k->name);
- g_free(k);
+ avahi_free(k->name);
+ avahi_free(k);
}
}
-AvahiRecord *avahi_record_new(AvahiKey *k, guint32 ttl) {
+AvahiRecord *avahi_record_new(AvahiKey *k, uint32_t ttl) {
AvahiRecord *r;
- g_assert(k);
+ assert(k);
- r = g_new(AvahiRecord, 1);
+ if (!(r = avahi_new(AvahiRecord, 1))) {
+ avahi_log_error("avahi_new() failed.");
+ return NULL;
+ }
+
r->ref = 1;
r->key = avahi_key_ref(k);
memset(&r->data, 0, sizeof(r->data));
- r->ttl = ttl != (guint32) -1 ? ttl : AVAHI_DEFAULT_TTL;
+ r->ttl = ttl != (uint32_t) -1 ? ttl : AVAHI_DEFAULT_TTL;
return r;
}
-AvahiRecord *avahi_record_new_full(const gchar *name, guint16 class, guint16 type, guint32 ttl) {
+AvahiRecord *avahi_record_new_full(const char *name, uint16_t class, uint16_t type, uint32_t ttl) {
AvahiRecord *r;
AvahiKey *k;
- g_assert(name);
+ assert(name);
- k = avahi_key_new(name, class, type);
+ if (!(k = avahi_key_new(name, class, type))) {
+ avahi_log_error("avahi_key_new() failed.");
+ return NULL;
+ }
+
r = avahi_record_new(k, ttl);
avahi_key_unref(k);
+ if (!r) {
+ avahi_log_error("avahi_record_new() failed.");
+ return NULL;
+ }
+
return r;
}
AvahiRecord *avahi_record_ref(AvahiRecord *r) {
- g_assert(r);
- g_assert(r->ref >= 1);
+ assert(r);
+ assert(r->ref >= 1);
r->ref++;
return r;
}
void avahi_record_unref(AvahiRecord *r) {
- g_assert(r);
- g_assert(r->ref >= 1);
+ assert(r);
+ assert(r->ref >= 1);
if ((--r->ref) <= 0) {
switch (r->key->type) {
case AVAHI_DNS_TYPE_SRV:
- g_free(r->data.srv.name);
+ avahi_free(r->data.srv.name);
break;
case AVAHI_DNS_TYPE_PTR:
case AVAHI_DNS_TYPE_CNAME:
- g_free(r->data.ptr.name);
+ avahi_free(r->data.ptr.name);
break;
case AVAHI_DNS_TYPE_HINFO:
- g_free(r->data.hinfo.cpu);
- g_free(r->data.hinfo.os);
+ avahi_free(r->data.hinfo.cpu);
+ avahi_free(r->data.hinfo.os);
break;
case AVAHI_DNS_TYPE_TXT:
@@ -137,15 +158,15 @@ void avahi_record_unref(AvahiRecord *r) {
break;
default:
- g_free(r->data.generic.data);
+ avahi_free(r->data.generic.data);
}
avahi_key_unref(r->key);
- g_free(r);
+ avahi_free(r);
}
}
-const gchar *avahi_dns_class_to_string(guint16 class) {
+const char *avahi_dns_class_to_string(uint16_t class) {
if (class & AVAHI_DNS_CACHE_FLUSH)
return "FLUSH";
@@ -159,7 +180,7 @@ const gchar *avahi_dns_class_to_string(guint16 class) {
}
}
-const gchar *avahi_dns_type_to_string(guint16 type) {
+const char *avahi_dns_type_to_string(uint16_t type) {
switch (type) {
case AVAHI_DNS_TYPE_CNAME:
return "CNAME";
@@ -182,22 +203,22 @@ const gchar *avahi_dns_type_to_string(guint16 type) {
}
}
-gchar *avahi_key_to_string(const AvahiKey *k) {
- g_assert(k);
- g_assert(k->ref >= 1);
+char *avahi_key_to_string(const AvahiKey *k) {
+ assert(k);
+ assert(k->ref >= 1);
- return g_strdup_printf("%s\t%s\t%s",
- k->name,
- avahi_dns_class_to_string(k->clazz),
- avahi_dns_type_to_string(k->type));
+ return avahi_strdup_printf("%s\t%s\t%s",
+ k->name,
+ avahi_dns_class_to_string(k->clazz),
+ avahi_dns_type_to_string(k->type));
}
-gchar *avahi_record_to_string(const AvahiRecord *r) {
- gchar *p, *s;
+char *avahi_record_to_string(const AvahiRecord *r) {
+ char *p, *s;
char buf[257], *t = NULL, *d = NULL;
- g_assert(r);
- g_assert(r->ref >= 1);
+ assert(r);
+ assert(r->ref >= 1);
switch (r->key->type) {
case AVAHI_DNS_TYPE_A:
@@ -235,16 +256,16 @@ gchar *avahi_record_to_string(const AvahiRecord *r) {
}
p = avahi_key_to_string(r->key);
- s = g_strdup_printf("%s %s ; ttl=%u", p, t ? t : "<unparsable>", r->ttl);
- g_free(p);
- g_free(d);
+ s = avahi_strdup_printf("%s %s ; ttl=%u", p, t ? t : "<unparsable>", r->ttl);
+ avahi_free(p);
+ avahi_free(d);
return s;
}
gboolean avahi_key_equal(const AvahiKey *a, const AvahiKey *b) {
- g_assert(a);
- g_assert(b);
+ assert(a);
+ assert(b);
if (a == b)
return TRUE;
@@ -257,12 +278,12 @@ gboolean avahi_key_equal(const AvahiKey *a, const AvahiKey *b) {
}
gboolean avahi_key_pattern_match(const AvahiKey *pattern, const AvahiKey *k) {
- g_assert(pattern);
- g_assert(k);
+ assert(pattern);
+ assert(k);
/* g_message("equal: %p %p", a, b); */
- g_assert(!avahi_key_is_pattern(k));
+ assert(!avahi_key_is_pattern(k));
if (pattern == k)
return TRUE;
@@ -273,7 +294,7 @@ gboolean avahi_key_pattern_match(const AvahiKey *pattern, const AvahiKey *k) {
}
gboolean avahi_key_is_pattern(const AvahiKey *k) {
- g_assert(k);
+ assert(k);
return
k->type == AVAHI_DNS_TYPE_ANY ||
@@ -281,7 +302,7 @@ gboolean avahi_key_is_pattern(const AvahiKey *k) {
}
guint avahi_key_hash(const AvahiKey *k) {
- g_assert(k);
+ assert(k);
return
avahi_domain_hash(k->name) +
@@ -290,17 +311,17 @@ guint avahi_key_hash(const AvahiKey *k) {
}
static gboolean rdata_equal(const AvahiRecord *a, const AvahiRecord *b) {
- g_assert(a);
- g_assert(b);
- g_assert(a->key->type == b->key->type);
+ assert(a);
+ assert(b);
+ assert(a->key->type == b->key->type);
/* t = avahi_record_to_string(a); */
/* g_message("comparing %s", t); */
-/* g_free(t); */
+/* avahi_free(t); */
/* t = avahi_record_to_string(b); */
/* g_message("and %s", t); */
-/* g_free(t); */
+/* avahi_free(t); */
switch (a->key->type) {
@@ -337,8 +358,8 @@ static gboolean rdata_equal(const AvahiRecord *a, const AvahiRecord *b) {
}
gboolean avahi_record_equal_no_ttl(const AvahiRecord *a, const AvahiRecord *b) {
- g_assert(a);
- g_assert(b);
+ assert(a);
+ assert(b);
if (a == b)
return TRUE;
@@ -352,7 +373,11 @@ gboolean avahi_record_equal_no_ttl(const AvahiRecord *a, const AvahiRecord *b) {
AvahiRecord *avahi_record_copy(AvahiRecord *r) {
AvahiRecord *copy;
- copy = g_new(AvahiRecord, 1);
+ if (!(copy = avahi_new(AvahiRecord, 1))) {
+ avahi_log_error("avahi_new() failed.");
+ return NULL;
+ }
+
copy->ref = 1;
copy->key = avahi_key_ref(r->key);
copy->ttl = r->ttl;
@@ -360,19 +385,26 @@ AvahiRecord *avahi_record_copy(AvahiRecord *r) {
switch (r->key->type) {
case AVAHI_DNS_TYPE_PTR:
case AVAHI_DNS_TYPE_CNAME:
- copy->data.ptr.name = g_strdup(r->data.ptr.name);
+ if (!(copy->data.ptr.name = avahi_strdup(r->data.ptr.name)))
+ goto fail;
break;
case AVAHI_DNS_TYPE_SRV:
copy->data.srv.priority = r->data.srv.priority;
copy->data.srv.weight = r->data.srv.weight;
copy->data.srv.port = r->data.srv.port;
- copy->data.srv.name = g_strdup(r->data.srv.name);
+ if (!(copy->data.srv.name = avahi_strdup(r->data.srv.name)))
+ goto fail;
break;
case AVAHI_DNS_TYPE_HINFO:
- copy->data.hinfo.os = g_strdup(r->data.hinfo.os);
- copy->data.hinfo.cpu = g_strdup(r->data.hinfo.cpu);
+ if (!(copy->data.hinfo.os = avahi_strdup(r->data.hinfo.os)))
+ goto fail;
+
+ if (!(copy->data.hinfo.cpu = avahi_strdup(r->data.hinfo.cpu))) {
+ avahi_free(r->data.hinfo.os);
+ goto fail;
+ }
break;
case AVAHI_DNS_TYPE_TXT:
@@ -388,25 +420,34 @@ AvahiRecord *avahi_record_copy(AvahiRecord *r) {
break;
default:
- copy->data.generic.data = g_memdup(r->data.generic.data, r->data.generic.size);
+ if (!(copy->data.generic.data = avahi_memdup(r->data.generic.data, r->data.generic.size)))
+ goto fail;
copy->data.generic.size = r->data.generic.size;
break;
}
return copy;
+
+fail:
+ avahi_log_error("Failed to allocate memory");
+
+ avahi_key_unref(copy->key);
+ avahi_free(copy);
+
+ return NULL;
}
-guint avahi_key_get_estimate_size(AvahiKey *k) {
- g_assert(k);
+size_t avahi_key_get_estimate_size(AvahiKey *k) {
+ assert(k);
return strlen(k->name)+1+4;
}
-guint avahi_record_get_estimate_size(AvahiRecord *r) {
+size_t avahi_record_get_estimate_size(AvahiRecord *r) {
guint n;
- g_assert(r);
+ assert(r);
n = avahi_key_get_estimate_size(r->key) + 4 + 2;
@@ -443,12 +484,12 @@ guint avahi_record_get_estimate_size(AvahiRecord *r) {
return n;
}
-static gint lexicographical_memcmp(gconstpointer a, size_t al, gconstpointer b, size_t bl) {
+static int lexicographical_memcmp(const void* a, size_t al, const void* b, size_t bl) {
size_t c;
- gint ret;
+ int ret;
- g_assert(a);
- g_assert(b);
+ assert(a);
+ assert(b);
c = al < bl ? al : bl;
if ((ret = memcmp(a, b, c)))
@@ -460,22 +501,22 @@ static gint lexicographical_memcmp(gconstpointer a, size_t al, gconstpointer b,
return al == c ? 1 : -1;
}
-static gint uint16_cmp(guint16 a, guint16 b) {
+static int uint16_cmp(uint16_t a, uint16_t b) {
return a == b ? 0 : (a < b ? -1 : 1);
}
-gint avahi_record_lexicographical_compare(AvahiRecord *a, AvahiRecord *b) {
- gint r;
-/* gchar *t1, *t2; */
+int avahi_record_lexicographical_compare(AvahiRecord *a, AvahiRecord *b) {
+ int r;
+/* char *t1, *t2; */
- g_assert(a);
- g_assert(b);
+ assert(a);
+ assert(b);
/* t1 = avahi_record_to_string(a); */
/* t2 = avahi_record_to_string(b); */
/* g_message("lexicocmp: %s %s", t1, t2); */
-/* g_free(t1); */
-/* g_free(t2); */
+/* avahi_free(t1); */
+/* avahi_free(t2); */
if (a == b)
return 0;
@@ -514,8 +555,13 @@ gint avahi_record_lexicographical_compare(AvahiRecord *a, AvahiRecord *b) {
guint8 *ma, *mb;
guint asize, bsize;
- ma = g_new(guint8, asize = avahi_string_list_serialize(a->data.txt.string_list, NULL, 0));
- mb = g_new(guint8, bsize = avahi_string_list_serialize(b->data.txt.string_list, NULL, 0));
+ if (!(ma = avahi_new(guint8, asize = avahi_string_list_serialize(a->data.txt.string_list, NULL, 0))))
+ goto fail;
+ if (!(mb = g_new(guint8, bsize = avahi_string_list_serialize(b->data.txt.string_list, NULL, 0)))) {
+ avahi_free(ma);
+ goto fail;
+ }
+
avahi_string_list_serialize(a->data.txt.string_list, ma, asize);
avahi_string_list_serialize(b->data.txt.string_list, mb, bsize);
@@ -528,8 +574,8 @@ gint avahi_record_lexicographical_compare(AvahiRecord *a, AvahiRecord *b) {
else
r = 0;
- g_free(ma);
- g_free(mb);
+ avahi_free(ma);
+ avahi_free(mb);
return r;
}
@@ -544,38 +590,42 @@ gint avahi_record_lexicographical_compare(AvahiRecord *a, AvahiRecord *b) {
return lexicographical_memcmp(a->data.generic.data, a->data.generic.size,
b->data.generic.data, b->data.generic.size);
}
+
+fail:
+ avahi_log_error("Out of memory");
+ return -1; /* or whatever ... */
}
-gboolean avahi_record_is_goodbye(AvahiRecord *r) {
- g_assert(r);
+int avahi_record_is_goodbye(AvahiRecord *r) {
+ assert(r);
return r->ttl == 0;
}
-gboolean avahi_key_valid(AvahiKey *k) {
- g_assert(k);
+int avahi_key_is_valid(AvahiKey *k) {
+ assert(k);
- if (!avahi_valid_domain_name(k->name))
+ if (!avahi_is_valid_domain_name(k->name))
return FALSE;
return TRUE;
}
-gboolean avahi_record_valid(AvahiRecord *r) {
- g_assert(r);
+int avahi_record_is_valid(AvahiRecord *r) {
+ assert(r);
- if (!avahi_key_valid(r->key))
- return FALSE;
+ if (!avahi_key_is_valid(r->key))
+ return 0;
switch (r->key->type) {
case AVAHI_DNS_TYPE_PTR:
case AVAHI_DNS_TYPE_CNAME:
- return avahi_valid_domain_name(r->data.ptr.name);
+ return avahi_is_valid_domain_name(r->data.ptr.name);
case AVAHI_DNS_TYPE_SRV:
- return avahi_valid_domain_name(r->data.srv.name);
+ return avahi_is_valid_domain_name(r->data.srv.name);
case AVAHI_DNS_TYPE_HINFO:
return
@@ -589,12 +639,12 @@ gboolean avahi_record_valid(AvahiRecord *r) {
for (strlst = r->data.txt.string_list; strlst; strlst = strlst->next)
if (strlst->size > 255)
- return FALSE;
+ return 0;
- return TRUE;
+ return 1;
}
}
- return TRUE;
+ return 1;
}