111 lines
1.7 KiB
C
111 lines
1.7 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <errno.h>
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#include "sock.h"
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/*
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* convert a string to sockaddr struct.
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* the string can contain a ipv4 or ipv6 address including a port number.
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* returns 1 on success
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* otherwise no success
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*/
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int sock_strtoaddr(const char * s,struct sockaddr * saout){
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char *ips,*ps;
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struct in_addr ia;
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int port;
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#ifdef WITH_IPV6
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struct in6_addr ia6;
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#endif
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int rc;
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/* copy the string */
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ips = malloc(strlen(s)+1);
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strcpy(ips,s);
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/* search for a collon to separate the port */
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ps = strchr(ips,':');
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if (ps != NULL){
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*ps='\0';
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ps++;
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}
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else
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ps="0";
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/* try to parse ip4 address */
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rc = inet_pton(AF_INET,ips,&ia);
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if (rc==1)
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{
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port = atoi(ps);
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if (port > 65535)
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rc=0;
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}
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if (rc==1){
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/* it's an ipv4 address */
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struct sockaddr_in * sa;
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sa = (struct sockaddr_in*)saout;
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memset(sa,0,sizeof(struct sockaddr_in));
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#ifdef HAVE_SIN_LEN
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sa->sin_len=sizeof(struct sockaddr_in);
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#endif
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sa->sin_family = AF_INET;
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sa->sin_addr=ia;
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sa->sin_port=htons(port);
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}
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#ifdef WITH_IPV6
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if (rc==0){
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strcpy(ips,s);
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ps = strchr(ips,'.');
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if (ps != NULL){
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*ps='\0';
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ps++;
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}
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else
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ps="0";
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rc = inet_pton(AF_INET6,s,&ia6);
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if (rc==1){
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/* it's an ipv6 address */
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struct sockaddr_in6 * sa;
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sa = (struct sockaddr_in6*)saout;
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memset(sa,0,sizeof(struct sockaddr_in6));
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#ifdef HAVE_SIN_LEN
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sa->sin6_len=sizeof(struct sockaddr_in6);
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#endif
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sa->sin6_family = AF_INET6;
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sa->sin6_addr=ia6;
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sa->sin6_port=htons(atoi(ps));
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}
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}
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#endif
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if (rc!=1){
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if (rc!=-1)
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errno=EINVAL;
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}
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free (ips);
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return rc;
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}
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