[Asterisk-code-review] utils.c: Remove all usages of ast_gethostbyname() (asterisk[16])
Sean Bright
asteriskteam at digium.com
Fri Dec 24 11:55:17 CST 2021
Sean Bright has uploaded this change for review. ( https://gerrit.asterisk.org/c/asterisk/+/17713 )
Change subject: utils.c: Remove all usages of ast_gethostbyname()
......................................................................
utils.c: Remove all usages of ast_gethostbyname()
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
---
M addons/ooh323c/src/ooSocket.c
M apps/app_festival.c
M channels/chan_mgcp.c
M channels/chan_skinny.c
M channels/chan_unistim.c
M channels/iax2/provision.c
M main/config.c
7 files changed, 81 insertions(+), 66 deletions(-)
git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/13/17713/1
diff --git a/addons/ooh323c/src/ooSocket.c b/addons/ooh323c/src/ooSocket.c
index 151c1cf..6d914f2 100644
--- a/addons/ooh323c/src/ooSocket.c
+++ b/addons/ooh323c/src/ooSocket.c
@@ -537,8 +537,6 @@
int ooGetLocalIPAddress(char * pIPAddrs)
{
int ret;
- struct hostent *hp;
- struct ast_hostent phost;
char hostname[100];
if(pIPAddrs == NULL)
@@ -546,18 +544,10 @@
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));
- }
+ struct ast_sockaddr *addrs;
+ if (ast_sockaddr_resolve(&addrs, hostname, PARSE_PORT_FORBID, AF_UNSPEC)) {
+ strcpy(pIPAddrs, ast_sockaddr_stringify_addr(addrs));
+ ast_free(addrs);
} else {
return -1;
}
diff --git a/apps/app_festival.c b/apps/app_festival.c
index d682b1c..e0f1b0b 100644
--- a/apps/app_festival.c
+++ b/apps/app_festival.c
@@ -281,8 +281,6 @@
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 @@
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;
diff --git a/channels/chan_mgcp.c b/channels/chan_mgcp.c
index 9404ad1..7156da7 100644
--- a/channels/chan_mgcp.c
+++ b/channels/chan_mgcp.c
@@ -1948,10 +1948,8 @@
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 @@
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 @@
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)) {
@@ -4657,6 +4651,30 @@
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)
{
@@ -4665,8 +4683,6 @@
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)) {
@@ -4700,10 +4716,8 @@
/* 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);
@@ -4771,13 +4785,11 @@
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);
diff --git a/channels/chan_skinny.c b/channels/chan_skinny.c
index 4892865..4b91fac 100644
--- a/channels/chan_skinny.c
+++ b/channels/chan_skinny.c
@@ -1234,8 +1234,6 @@
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 @@
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 @@
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")) {
@@ -8487,13 +8508,11 @@
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);
diff --git a/channels/chan_unistim.c b/channels/chan_unistim.c
index 0240509..bf133e8 100644
--- a/channels/chan_unistim.c
+++ b/channels/chan_unistim.c
@@ -6847,8 +6847,6 @@
{
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 @@
}
} 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);
}
}
}
diff --git a/channels/iax2/provision.c b/channels/iax2/provision.c
index f21c4e6..445ccd5 100644
--- a/channels/iax2/provision.c
+++ b/channels/iax2/provision.c
@@ -285,9 +285,6 @@
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) {
@@ -335,13 +332,12 @@
} 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)) {
if (!strcasecmp(v->name, "server"))
- cur->server = ntohl(ia.s_addr);
+ cur->server = ast_sockaddr_ipv4(&addr);
else
- cur->altserver = ntohl(ia.s_addr);
+ cur->altserver = ast_sockaddr_ipv4(&addr);
} 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, "codec")) {
diff --git a/main/config.c b/main/config.c
index 4d4f946..b6a749e 100644
--- a/main/config.c
+++ b/main/config.c
@@ -3863,8 +3863,7 @@
/* 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 @@
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",
--
To view, visit https://gerrit.asterisk.org/c/asterisk/+/17713
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Gerrit-Project: asterisk
Gerrit-Branch: 16
Gerrit-Change-Id: Ie277c0ef768d753b169c121ef570a71665692ab7
Gerrit-Change-Number: 17713
Gerrit-PatchSet: 1
Gerrit-Owner: Sean Bright <sean at seanbright.com>
Gerrit-MessageType: newchange
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