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-rw-r--r--src/core/ngx_string.c31
-rw-r--r--src/core/ngx_string.h1
-rw-r--r--src/http/modules/ngx_http_map_module.c2
-rw-r--r--src/http/modules/ngx_http_referer_module.c7
-rw-r--r--src/http/ngx_http.c2
-rw-r--r--src/http/ngx_http_core_module.c6
-rw-r--r--src/http/ngx_http_request.c2
7 files changed, 47 insertions, 4 deletions
diff --git a/src/core/ngx_string.c b/src/core/ngx_string.c
index c0bcc1d12..3456baa5c 100644
--- a/src/core/ngx_string.c
+++ b/src/core/ngx_string.c
@@ -820,6 +820,37 @@ ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2)
ngx_int_t
+ngx_dns_strcmp(u_char *s1, u_char *s2)
+{
+ ngx_uint_t c1, c2;
+
+ for ( ;; ) {
+ c1 = (ngx_uint_t) *s1++;
+ c2 = (ngx_uint_t) *s2++;
+
+ c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1;
+ c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2;
+
+ if (c1 == c2) {
+
+ if (c1) {
+ continue;
+ }
+
+ return 0;
+ }
+
+ /* in ASCII '.' > '-', but we need '.' to be the lowest character */
+
+ c1 = (c1 == '.') ? ' ' : c1;
+ c2 = (c2 == '.') ? ' ' : c2;
+
+ return c1 - c2;
+ }
+}
+
+
+ngx_int_t
ngx_atoi(u_char *line, size_t n)
{
ngx_int_t value;
diff --git a/src/core/ngx_string.h b/src/core/ngx_string.h
index 81e1ea169..0525b0e24 100644
--- a/src/core/ngx_string.h
+++ b/src/core/ngx_string.h
@@ -158,6 +158,7 @@ u_char *ngx_strlcasestrn(u_char *s1, u_char *last, u_char *s2, size_t n);
ngx_int_t ngx_rstrncmp(u_char *s1, u_char *s2, size_t n);
ngx_int_t ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n);
ngx_int_t ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2);
+ngx_int_t ngx_dns_strcmp(u_char *s1, u_char *s2);
ngx_int_t ngx_atoi(u_char *line, size_t n);
ssize_t ngx_atosz(u_char *line, size_t n);
diff --git a/src/http/modules/ngx_http_map_module.c b/src/http/modules/ngx_http_map_module.c
index 1f7786c3c..abdae0d3b 100644
--- a/src/http/modules/ngx_http_map_module.c
+++ b/src/http/modules/ngx_http_map_module.c
@@ -337,7 +337,7 @@ ngx_http_map_cmp_dns_wildcards(const void *one, const void *two)
first = (ngx_hash_key_t *) one;
second = (ngx_hash_key_t *) two;
- return ngx_strcmp(first->key.data, second->key.data);
+ return ngx_dns_strcmp(first->key.data, second->key.data);
}
diff --git a/src/http/modules/ngx_http_referer_module.c b/src/http/modules/ngx_http_referer_module.c
index 658f4a19c..8daa399bd 100644
--- a/src/http/modules/ngx_http_referer_module.c
+++ b/src/http/modules/ngx_http_referer_module.c
@@ -506,6 +506,11 @@ ngx_http_add_regex_referer(ngx_conf_t *cf, ngx_http_referer_conf_t *rlcf,
ngx_regex_elt_t *re;
u_char errstr[NGX_MAX_CONF_ERRSTR];
+ if (name->len == 1) {
+ ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "empty regex in \"%V\"", name);
+ return NGX_CONF_ERROR;
+ }
+
if (rlcf->regex == NGX_CONF_UNSET_PTR) {
rlcf->regex = ngx_array_create(cf->pool, 2, sizeof(ngx_regex_elt_t));
if (rlcf->regex == NULL) {
@@ -562,5 +567,5 @@ ngx_http_cmp_referer_wildcards(const void *one, const void *two)
first = (ngx_hash_key_t *) one;
second = (ngx_hash_key_t *) two;
- return ngx_strcmp(first->key.data, second->key.data);
+ return ngx_dns_strcmp(first->key.data, second->key.data);
}
diff --git a/src/http/ngx_http.c b/src/http/ngx_http.c
index b0915157c..f5cb430fa 100644
--- a/src/http/ngx_http.c
+++ b/src/http/ngx_http.c
@@ -1601,7 +1601,7 @@ ngx_http_cmp_dns_wildcards(const void *one, const void *two)
first = (ngx_hash_key_t *) one;
second = (ngx_hash_key_t *) two;
- return ngx_strcmp(first->key.data, second->key.data);
+ return ngx_dns_strcmp(first->key.data, second->key.data);
}
diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index 799dfc856..01e4da397 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -3512,6 +3512,12 @@ ngx_http_core_server_name(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
ngx_str_t err;
u_char errstr[NGX_MAX_CONF_ERRSTR];
+ if (value[i].len == 1) {
+ ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+ "empty regex in server name \"%V\"", &value[i]);
+ return NGX_CONF_ERROR;
+ }
+
err.len = NGX_MAX_CONF_ERRSTR;
err.data = errstr;
diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index 13b069226..541d305ec 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -1658,7 +1658,7 @@ ngx_http_find_virtual_server(ngx_http_request_t *r, u_char *host, size_t len)
#if (NGX_PCRE)
- if (r->virtual_names->nregex) {
+ if (len && r->virtual_names->nregex) {
size_t ncaptures;
ngx_int_t n;
ngx_uint_t i;