Module: kamailio Branch: master Commit: 20faf2acc8e72c7a15be835a65abe36f62efcbbe URL: https://github.com/kamailio/kamailio/commit/20faf2acc8e72c7a15be835a65abe36… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2021-03-03T08:29:07+01:00 core: use a list of static ip address variables for internal str convertion functions - safer to work with up to 6 functions that use them internally --- Modified: src/core/resolve.c --- Diff: https://github.com/kamailio/kamailio/commit/20faf2acc8e72c7a15be835a65abe36… Patch: https://github.com/kamailio/kamailio/commit/20faf2acc8e72c7a15be835a65abe36… --- diff --git a/src/core/resolve.c b/src/core/resolve.c index 193ac528af..928f6af3c5 100644 --- a/src/core/resolve.c +++ b/src/core/resolve.c @@ -57,6 +57,20 @@ #include "dns_cache.h" #endif +#define KSR_IPADDR_LIST_SIZE 6 +static ip_addr_t _ksr_ipaddr_list[KSR_IPADDR_LIST_SIZE]; +static int _ksr_ipaddr_list_idx = 0; + +static ip_addr_t* get_next_ipaddr_buf(void) +{ + ip_addr_t *ipb; + + ipb = &_ksr_ipaddr_list[_ksr_ipaddr_list_idx]; + _ksr_ipaddr_list_idx = (_ksr_ipaddr_list_idx + 1) % KSR_IPADDR_LIST_SIZE; + + return ipb; +} + /* counters framework */ struct dns_counters_h dns_cnts_h; counter_def_t dns_cnt_defs[] = { @@ -1780,13 +1794,14 @@ int str2ipbuf(str* st, ip_addr_t* ipb) Warning: the result is a pointer to a statically allocated structure */ ip_addr_t* str2ip(str* st) { - static ip_addr_t ip; + ip_addr_t *ipb; - if(str2ipbuf(st, &ip)<0) { + ipb = get_next_ipaddr_buf(); + if(str2ipbuf(st, ipb)<0) { return NULL; } - return &ip; + return ipb; } /* converts a str to an ipv6 address struct stored in ipb @@ -1895,13 +1910,14 @@ int str2ip6buf(str* st, ip_addr_t* ipb) * the ip_addr struct is static, so subsequent calls will destroy its content*/ ip_addr_t* str2ip6(str* st) { - static ip_addr_t ip; + ip_addr_t *ipb; - if(str2ip6buf(st, &ip)<0) { + ipb = get_next_ipaddr_buf(); + if(str2ip6buf(st, ipb)<0) { return NULL; } - return &ip; + return ipb; } /* converts a str to an ipvv/6 address struct stored in ipb @@ -1922,13 +1938,14 @@ int str2ipxbuf(str* st, ip_addr_t* ipb) * the ip_addr struct is static, so subsequent calls will destroy its content*/ struct ip_addr* str2ipx(str* st) { - static ip_addr_t ip; + ip_addr_t *ipb; - if(str2ipbuf(st, &ip)<0) { - if(str2ip6buf(st, &ip)<0) { + ipb = get_next_ipaddr_buf(); + if(str2ipbuf(st, ipb)<0) { + if(str2ip6buf(st, ipb)<0) { return NULL; } } - return &ip; + return ipb; }