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utils.c: Remove all usages of ast_gethostbyname()

Browse Source 
gethostbyname() and gethostbyname_r() are deprecated in favor of
getaddrinfo() which we use in the ast_sockaddr family of functions.

ASTERISK-29819 #close

Change-Id: Ie277c0ef768d753b169c121ef570a71665692ab7
18.10
Sean Bright 3 years ago committed by Kevin Harwell
parent 54f2f1e027
commit 0bbef4d8c5
7 changed files with 84 additions and 69 deletions
Show Stats Download Patch File Download Diff File

19
addons/ooh323c/src/ooSocket.c
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@ -537,8 +537,6 @@ int ooPDWrite(struct pollfd *pfds, int nfds, int fd)
int ooGetLocalIPAddress(char * pIPAddrs)
{
int ret;
struct hostent *hp;
struct ast_hostent phost;
char hostname[100];
if(pIPAddrs == NULL)
@ -546,20 +544,11 @@ int ooGetLocalIPAddress(char * pIPAddrs)
ret = gethostname(hostname, 100);
if(ret == 0)
{
if ((hp = ast_gethostbyname(hostname, &phost))) {
if (hp->h_addrtype == AF_INET6) {
struct in6_addr i;
memcpy(&i, hp->h_addr, sizeof(i));
strcpy(pIPAddrs, (inet_ntop(AF_INET6, &i,
hostname, sizeof(hostname))) == NULL ? "::1" :
inet_ntop(AF_INET6, &i, hostname, sizeof(hostname)));
} else {
struct in_addr i;
memcpy(&i, hp->h_addr, sizeof(i));
strcpy(pIPAddrs, (ast_inet_ntoa(i) == NULL) ? "127.0.0.1" : ast_inet_ntoa(i));
}
} else {
struct ast_sockaddr addr = { {0,} };
if (ast_sockaddr_resolve_first_af(&addr, hostname, PARSE_PORT_FORBID, AF_UNSPEC)) {
return -1;
} else {
strcpy(pIPAddrs, ast_sockaddr_stringify_addr(&addr));
}
}
else{

12
apps/app_festival.c
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@ -281,8 +281,6 @@ static int festival_exec(struct ast_channel *chan, const char *vdata)
int usecache;
int res = 0;
struct sockaddr_in serv_addr;
struct hostent *serverhost;
struct ast_hostent ahp;
int fd;
FILE *fs;
const char *host;
@ -398,15 +396,17 @@ static int festival_exec(struct ast_channel *chan, const char *vdata)
if ((serv_addr.sin_addr.s_addr = inet_addr(host)) == -1) {
/* its a name rather than an ipnum */
serverhost = ast_gethostbyname(host, &ahp);
struct ast_sockaddr addr = { {0,} };
if (serverhost == NULL) {
ast_log(LOG_WARNING, "festival_client: gethostbyname failed\n");
if (ast_sockaddr_resolve_first_af(&addr, host, PARSE_PORT_FORBID, AF_INET)) {
ast_log(LOG_WARNING, "festival_client: ast_sockaddr_resolve_first_af() failed\n");
ast_config_destroy(cfg);
close(fd);
return -1;
}
memmove(&serv_addr.sin_addr, serverhost->h_addr, serverhost->h_length);
/* We'll overwrite port and family in a sec */
ast_sockaddr_to_sin(&addr, &serv_addr);
}
serv_addr.sin_family = AF_INET;

50
channels/chan_mgcp.c
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@ -1948,10 +1948,8 @@ static int process_sdp(struct mgcp_subchannel *sub, struct mgcp_request *req)
int portno;
struct ast_format_cap *peercap;
int peerNonCodecCapability;
struct sockaddr_in sin;
struct ast_sockaddr sin_tmp;
struct ast_sockaddr addr = { {0,} };
char *codecs;
struct ast_hostent ahp; struct hostent *hp;
int codec, codec_count=0;
int iterator;
struct mgcp_endpoint *p = sub->parent;
@ -1971,8 +1969,7 @@ static int process_sdp(struct mgcp_subchannel *sub, struct mgcp_request *req)
return -1;
}
/* XXX This could block for a long time, and block the main thread! XXX */
hp = ast_gethostbyname(host, &ahp);
if (!hp) {
if (ast_sockaddr_resolve_first_af(&addr, host, PARSE_PORT_FORBID, AF_INET)) {
ast_log(LOG_WARNING, "Unable to lookup host in c= line, '%s'\n", c);
return -1;
}
@ -1980,12 +1977,9 @@ static int process_sdp(struct mgcp_subchannel *sub, struct mgcp_request *req)
ast_log(LOG_WARNING, "Malformed media stream descriptor: %s\n", m);
return -1;
}
sin.sin_family = AF_INET;
memcpy(&sin.sin_addr, hp->h_addr, sizeof(sin.sin_addr));
sin.sin_port = htons(portno);
ast_sockaddr_from_sin(&sin_tmp, &sin);
ast_rtp_instance_set_remote_address(sub->rtp, &sin_tmp);
ast_debug(3, "Peer RTP is at port %s:%d\n", ast_inet_ntoa(sin.sin_addr), ntohs(sin.sin_port));
ast_sockaddr_set_port(&addr, portno);
ast_rtp_instance_set_remote_address(sub->rtp, &addr);
ast_debug(3, "Peer RTP is at port %s\n", ast_sockaddr_stringify(&addr));
/* Scan through the RTP payload types specified in a "m=" line: */
codecs = ast_strdupa(m + len);
while (!ast_strlen_zero(codecs)) {
@ -4650,6 +4644,30 @@ static struct ast_variable *copy_vars(struct ast_variable *src)
return res;
}
/*!
* \brief Resolve the given hostname and save its IPv4 address.
*
* \param[in] hostname The hostname to resolve.
* \param[out] sin_addr Pointer to a <tt>struct in_addr</tt> in which to
* store the resolved IPv4 address. \c sin_addr will
* not be changed if resolution fails.
*
* \retval 0 if successful
* \retval 1 on failure
*/
static int resolve_first_addr(const char *hostname, struct in_addr *sin_addr)
{
struct ast_sockaddr addr = { {0,} };
struct sockaddr_in tmp;
if (ast_sockaddr_resolve_first_af(&addr, hostname, PARSE_PORT_FORBID, AF_INET)) {
return 1;
}
ast_sockaddr_to_sin(&addr, &tmp);
*sin_addr = tmp.sin_addr;
return 0;
}
static int reload_config(int reload)
{
@ -4658,8 +4676,6 @@ static int reload_config(int reload)
struct mgcp_gateway *g;
struct mgcp_endpoint *e;
char *cat;
struct ast_hostent ahp;
struct hostent *hp;
struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
if (gethostname(ourhost, sizeof(ourhost)-1)) {
@ -4693,10 +4709,8 @@ static int reload_config(int reload)
/* Create the interface list */
if (!strcasecmp(v->name, "bindaddr")) {
if (!(hp = ast_gethostbyname(v->value, &ahp))) {
if (resolve_first_addr(v->value, &bindaddr.sin_addr)) {
ast_log(LOG_WARNING, "Invalid address: %s\n", v->value);
} else {
memcpy(&bindaddr.sin_addr, hp->h_addr, sizeof(bindaddr.sin_addr));
}
} else if (!strcasecmp(v->name, "allow")) {
ast_format_cap_update_by_allow_disallow(global_capability, v->value, 1);
@ -4764,13 +4778,11 @@ static int reload_config(int reload)
if (ntohl(bindaddr.sin_addr.s_addr)) {
memcpy(&__ourip, &bindaddr.sin_addr, sizeof(__ourip));
} else {
hp = ast_gethostbyname(ourhost, &ahp);
if (!hp) {
if (resolve_first_addr(ourhost, &__ourip)) {
ast_log(LOG_WARNING, "Unable to get our IP address, MGCP disabled\n");
ast_config_destroy(cfg);
return 0;
}
memcpy(&__ourip, hp->h_addr, sizeof(__ourip));
}
if (!ntohs(bindaddr.sin_port))
bindaddr.sin_port = htons(DEFAULT_MGCP_CA_PORT);

35
channels/chan_skinny.c
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@ -1234,8 +1234,6 @@ static struct sockaddr_in bindaddr;
static char ourhost[256];
static int ourport;
static struct in_addr __ourip;
static struct ast_hostent ahp;
static struct hostent *hp;
static int skinnysock = -1;
static pthread_t accept_t;
static int callnums = 1;
@ -7758,6 +7756,31 @@ static struct ast_channel *skinny_request(const char *type, struct ast_format_ca
return tmpc;
}
/*!
* \brief Resolve the given hostname and save its IPv4 address.
*
* \param[in] hostname The hostname to resolve.
* \param[out] sin_addr Pointer to a <tt>struct in_addr</tt> in which to
* store the resolved IPv4 address. \c sin_addr will
* not be changed if resolution fails.
*
* \retval 0 if successful
* \retval 1 on failure
*/
static int resolve_first_addr(const char *hostname, struct in_addr *sin_addr)
{
struct ast_sockaddr addr = { {0,} };
struct sockaddr_in tmp;
if (ast_sockaddr_resolve_first_af(&addr, hostname, PARSE_PORT_FORBID, AF_INET)) {
return 1;
}
ast_sockaddr_to_sin(&addr, &tmp);
*sin_addr = tmp.sin_addr;
return 0;
}
#define TYPE_GENERAL 1
#define TYPE_DEF_DEVICE 2
#define TYPE_DEF_LINE 4
@ -7789,10 +7812,8 @@ static void config_parse_variables(int type, void *item, struct ast_variable *vp
continue;
}
if (!strcasecmp(v->name, "bindaddr")) {
if (!(hp = ast_gethostbyname(v->value, &ahp))) {
if (resolve_first_addr(v->value, &bindaddr.sin_addr)) {
ast_log(LOG_WARNING, "Invalid address: %s\n", v->value);
} else {
memcpy(&bindaddr.sin_addr, hp->h_addr, sizeof(bindaddr.sin_addr));
}
continue;
} else if (!strcasecmp(v->name, "keepalive")) {
@ -8479,13 +8500,11 @@ static int config_load(void)
if (ntohl(bindaddr.sin_addr.s_addr)) {
__ourip = bindaddr.sin_addr;
} else {
hp = ast_gethostbyname(ourhost, &ahp);
if (!hp) {
if (resolve_first_addr(ourhost, &__ourip)) {
ast_log(LOG_WARNING, "Unable to get our IP address, Skinny disabled\n");
ast_config_destroy(cfg);
return 0;
}
memcpy(&__ourip, hp->h_addr, sizeof(__ourip));
}
if (!ntohs(bindaddr.sin_port)) {
bindaddr.sin_port = htons(DEFAULT_SKINNY_PORT);

8
channels/chan_unistim.c
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@ -6847,8 +6847,6 @@ static int reload_config(void)
{
struct ast_config *cfg;
struct ast_variable *v;
struct ast_hostent ahp;
struct hostent *hp;
struct sockaddr_in bindaddr = { 0, };
char *config = "unistim.conf";
char *cat;
@ -6916,11 +6914,11 @@ static int reload_config(void)
}
} else if (!strcasecmp(v->name, "public_ip")) {
if (!ast_strlen_zero(v->value)) {
if (!(hp = ast_gethostbyname(v->value, &ahp))) {
struct ast_sockaddr addr = { {0,} };
if (ast_sockaddr_resolve_first_af(&addr, v->value, PARSE_PORT_FORBID, AF_INET)) {
ast_log(LOG_WARNING, "Invalid address: %s\n", v->value);
} else {
memcpy(&public_ip.sin_addr, hp->h_addr, sizeof(public_ip.sin_addr));
public_ip.sin_family = AF_INET;
ast_sockaddr_to_sin(&addr, &public_ip);
}
}
}

17
channels/iax2/provision.c
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@ -285,9 +285,6 @@ static int iax_template_parse(struct iax_template *cur, struct ast_config *cfg,
int foundportno = 0;
int foundserverportno = 0;
int x;
struct in_addr ia;
struct hostent *hp;
struct ast_hostent h;
struct iax_template *src, tmp;
const char *t;
if (def) {
@ -335,15 +332,15 @@ static int iax_template_parse(struct iax_template *cur, struct ast_config *cfg,
} else
ast_log(LOG_WARNING, "Ignoring invalid %s '%s' for '%s' at line %d\n", v->name, v->value, s, v->lineno);
} else if (!strcasecmp(v->name, "server") || !strcasecmp(v->name, "altserver")) {
hp = ast_gethostbyname(v->value, &h);
if (hp) {
memcpy(&ia, hp->h_addr, sizeof(ia));
struct ast_sockaddr addr = { {0,} };
if (ast_sockaddr_resolve_first_af(&addr, v->value, PARSE_PORT_FORBID, AF_INET)) {
ast_log(LOG_WARNING, "Ignoring invalid %s '%s' for '%s' at line %d\n", v->name, v->value, s, v->lineno);
} else {
if (!strcasecmp(v->name, "server"))
cur->server = ntohl(ia.s_addr);
cur->server = ast_sockaddr_ipv4(&addr);
else
cur->altserver = ntohl(ia.s_addr);
} else
ast_log(LOG_WARNING, "Ignoring invalid %s '%s' for '%s' at line %d\n", v->name, v->value, s, v->lineno);
cur->altserver = ast_sockaddr_ipv4(&addr);
}
} else if (!strcasecmp(v->name, "codec")) {
struct ast_format *tmpfmt;
if ((tmpfmt = ast_format_cache_get(v->value))) {

12
main/config.c
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@ -3863,8 +3863,7 @@ double_done:
/* default is either the supplied value or the result itself */
struct sockaddr_in *def = (flags & PARSE_DEFAULT) ?
va_arg(ap, struct sockaddr_in *) : sa;
struct hostent *hp;
struct ast_hostent ahp;
struct ast_sockaddr addr = { {0,} };
memset(&_sa_buf, '\0', sizeof(_sa_buf)); /* clear buffer */
/* duplicate the string to strip away the :port */
@ -3890,12 +3889,13 @@ double_done:
error = 1;
}
/* Now deal with host part, even if we have errors before. */
hp = ast_gethostbyname(buf, &ahp);
if (hp) /* resolved successfully */
memcpy(&sa->sin_addr, hp->h_addr, sizeof(sa->sin_addr));
else {
if (ast_sockaddr_resolve_first_af(&addr, buf, PARSE_PORT_FORBID, AF_INET)) {
error = 1;
sa->sin_addr = def->sin_addr;
} else {
struct sockaddr_in tmp;
ast_sockaddr_to_sin(&addr, &tmp);
sa->sin_addr = tmp.sin_addr;
}
ast_debug(3,
"extract inaddr from [%s] gives [%s:%d](%d)\n",

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