diff options
Diffstat (limited to 'src/libstrongswan/utils/host.c')
| -rw-r--r-- | src/libstrongswan/utils/host.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/libstrongswan/utils/host.c b/src/libstrongswan/utils/host.c index a2fa57927..b60d532c7 100644 --- a/src/libstrongswan/utils/host.c +++ b/src/libstrongswan/utils/host.c @@ -18,11 +18,14 @@ * $Id$ */ +#define _GNU_SOURCE +#include <netdb.h> #include <string.h> #include <printf.h> #include "host.h" +#include <debug.h> typedef struct private_host_t private_host_t; @@ -451,6 +454,56 @@ host_t *host_create_from_string(char *string, u_int16_t port) /* * Described in header. */ +host_t *host_create_from_dns(char *string, int af, u_int16_t port) +{ + private_host_t *this; + struct hostent host, *ptr; + char buf[512]; + int err, ret; + + if (af) + { + ret = gethostbyname2_r(string, af, &host, buf, sizeof(buf), &ptr, &err); + } + else + { + ret = gethostbyname_r(string, &host, buf, sizeof(buf), &ptr, &err); + } + if (ret != 0) + { + DBG1("resolving '%s' failed: %s", string, hstrerror(err)); + return NULL; + } + if (ptr == NULL) + { + DBG1("resolving '%s' failed", string); + } + this = host_create_empty(); + this->address.sa_family = host.h_addrtype; + switch (af) + { + case AF_INET: + memcpy(&this->address4.sin_addr.s_addr, + host.h_addr_list[0], host.h_length); + this->address4.sin_port = htons(port); + this->socklen = sizeof(struct sockaddr_in); + break; + case AF_INET6: + memcpy(&this->address6.sin6_addr.s6_addr, + host.h_addr_list[0], host.h_length); + this->address6.sin6_port = htons(port); + this->socklen = sizeof(struct sockaddr_in6); + break; + default: + free(this); + return NULL; + } + return &this->public; +} + +/* + * Described in header. + */ host_t *host_create_from_chunk(int family, chunk_t address, u_int16_t port) { private_host_t *this = host_create_empty(); |