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mtr/backport-consistent-resolution-strategy.patch
liyunqing 1b07d88645 fix changing source failed 
(cherry picked from commit 2911b40a691876ef5f33e1ae26c6823145cce979)
2022-08-11 19:28:03 +08:00

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From a7a8985a914509351cb590ccae8cf3574f42f628 Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <kris.lipinski@gmail.com>
Date: Sun, 4 Apr 2021 12:16:26 +1200
Subject: [PATCH 01/17] tell dns process if we want 4 or 6
---
ui/dns.c | 10 ++++++----
ui/dns.h | 2 +-
ui/mtr.c | 2 +-
3 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/ui/dns.c b/ui/dns.c
index 94af8b7..902aa67 100644
--- a/ui/dns.c
+++ b/ui/dns.c
@@ -124,7 +124,7 @@ static void set_sockaddr_ip(
}
void dns_open(
- sa_family_t family)
+ void)
{
int pid;
@@ -173,7 +173,8 @@ void dns_open(
buf[strlen(buf) - 1] = 0; /* chomp newline. */
- longipstr(buf, &host, family);
+ sa_family_t family = (buf[0] == '4') ? AF_INET : AF_INET6;
+ longipstr(buf +1, &host, family);
set_sockaddr_ip(family, &sa, &host);
salen = (family == AF_INET) ? sizeof(struct sockaddr_in) :
sizeof(struct sockaddr_in6);
@@ -256,7 +257,7 @@ char *dns_lookup2(
ip_t * ip)
{
struct dns_results *r;
- char buf[INET6_ADDRSTRLEN + 1];
+ char buf[INET6_ADDRSTRLEN + 2]; // af_byte + addr + null
int rv;
r = findip(ctl, ip);
@@ -270,7 +271,8 @@ char *dns_lookup2(
r->name = NULL;
r->next = results;
results = r;
- snprintf(buf, sizeof(buf), "%s\n", strlongip(ctl->af, ip));
+ char ip4or6 = (ctl->af == AF_INET) ? '4' : '6';
+ snprintf(buf, sizeof(buf), "%c%s\n", ip4or6, strlongip(ctl->af, ip));
rv = write(todns[1], buf, strlen(buf));
if (rv < 0)
error(0, errno, "couldn't write to resolver process");
diff --git a/ui/dns.h b/ui/dns.h
index b15d6ad..921110e 100644
--- a/ui/dns.h
+++ b/ui/dns.h
@@ -23,7 +23,7 @@
/* Prototypes for dns.c */
extern void dns_open(
- sa_family_t family);
+ void);
extern int dns_waitfd(
void);
extern void dns_ack(
diff --git a/ui/mtr.c b/ui/mtr.c
index b959919..91773f4 100644
--- a/ui/mtr.c
+++ b/ui/mtr.c
@@ -858,7 +858,7 @@ int main(
}
lock(stdout);
- dns_open(ctl.af);
+ dns_open();
display_open(&ctl);
display_loop(&ctl);
--
2.27.0
From d9116f22d273de98a8f15758eaaa6e8fa1df4fab Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <kris.lipinski@gmail.com>
Date: Sun, 4 Apr 2021 13:02:54 +1200
Subject: [PATCH 02/17] resolve ipv6 only if we have ipv6
---
test/probe.py | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/test/probe.py b/test/probe.py
index b1f0fff..88739cb 100755
--- a/test/probe.py
+++ b/test/probe.py
@@ -268,9 +268,10 @@ class TestProbeICMPv6(mtrpacket.MtrPacketTest):
'''Test sending probes using IP version 6'''
def __init__(self, *args):
- google_addr = resolve_ipv6_address(mtrpacket.IPV6_TEST_HOST)
+ if mtrpacket.HAVE_IPV6:
+ google_addr = resolve_ipv6_address(mtrpacket.IPV6_TEST_HOST)
- self.google_addr = google_addr # type: str
+ self.google_addr = google_addr # type: str
super(TestProbeICMPv6, self).__init__(*args)
--
2.27.0
From 571004f8544ee638a2667c4f39bc9022a503915d Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <aaron.lipinski@roboticsplus.co.nz>
Date: Tue, 6 Apr 2021 12:25:12 +1200
Subject: [PATCH 03/17] remove wrapper only function
---
ui/dns.c | 12 ------------
ui/dns.h | 2 --
ui/gtk.c | 2 +-
3 files changed, 1 insertion(+), 15 deletions(-)
diff --git a/ui/dns.c b/ui/dns.c
index 902aa67..8f47316 100644
--- a/ui/dns.c
+++ b/ui/dns.c
@@ -87,18 +87,6 @@ static int longipstr(
}
-struct hostent *dns_forward(
- const char *name)
-{
- struct hostent *host;
-
- if ((host = gethostbyname(name)))
- return host;
- else
- return NULL;
-}
-
-
static struct dns_results *findip(
struct mtr_ctl *ctl,
ip_t * ip)
diff --git a/ui/dns.h b/ui/dns.h
index 921110e..918bc51 100644
--- a/ui/dns.h
+++ b/ui/dns.h
@@ -41,8 +41,6 @@ extern char *dns_lookup(
extern char *dns_lookup2(
struct mtr_ctl *ctl,
ip_t * address);
-extern struct hostent *dns_forward(
- const char *name);
extern char *strlongip(
sa_family_t family,
ip_t * ip);
diff --git a/ui/gtk.c b/ui/gtk.c
index e23abf2..a98154a 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -246,7 +246,7 @@ static gint Host_activate(
struct mtr_ctl *ctl = (struct mtr_ctl *) data;
struct hostent *addr;
- addr = dns_forward(gtk_entry_get_text(GTK_ENTRY(entry)));
+ addr = gethostbyname(gtk_entry_get_text(GTK_ENTRY(entry)));
if (addr) {
net_reopen(ctl, addr);
net_send_batch(ctl);
--
2.27.0
From 78301a8026500b584b22d27151edc746ccd7b673 Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <aaron.lipinski@roboticsplus.co.nz>
Date: Tue, 6 Apr 2021 13:23:14 +1200
Subject: [PATCH 04/17] init structures correctly wired up
---
ui/mtr.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/ui/mtr.c b/ui/mtr.c
index 91773f4..ef567f6 100644
--- a/ui/mtr.c
+++ b/ui/mtr.c
@@ -766,9 +766,9 @@ int main(
int argc,
char **argv)
{
- struct hostent *host = NULL;
- struct hostent trhost;
char *alptr[2];
+ struct hostent trhost;
+ struct hostent *host = &trhost;
names_t *names_head = NULL;
names_t *names_walk;
@@ -837,7 +837,6 @@ int main(
sizeof(ctl.LocalHostname));
}
- host = &trhost;
if (get_hostent_from_name(&ctl, host, ctl.Hostname, alptr) != 0) {
if (ctl.Interactive)
exit(EXIT_FAILURE);
--
2.27.0
From 14ec0550ab9e1e86025b5913e415f239b7d44260 Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <aaron.lipinski@roboticsplus.co.nz>
Date: Tue, 6 Apr 2021 13:25:10 +1200
Subject: [PATCH 05/17] prepare host with h_addr_list
---
ui/mtr.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/ui/mtr.c b/ui/mtr.c
index ef567f6..a8ccc0a 100644
--- a/ui/mtr.c
+++ b/ui/mtr.c
@@ -706,8 +706,7 @@ static void init_rand(
static int get_hostent_from_name(
struct mtr_ctl *ctl,
struct hostent *host,
- const char *name,
- char **alptr)
+ const char *name)
{
int gai_error;
struct addrinfo hints, *res;
@@ -732,22 +731,20 @@ static int get_hostent_from_name(
}
/* Convert the first addrinfo into a hostent. */
- memset(host, 0, sizeof(struct hostent));
host->h_name = res->ai_canonname;
host->h_aliases = NULL;
host->h_addrtype = res->ai_family;
ctl->af = res->ai_family;
host->h_length = res->ai_addrlen;
- host->h_addr_list = alptr;
switch (ctl->af) {
case AF_INET:
sa4 = (struct sockaddr_in *) res->ai_addr;
- alptr[0] = (void *) &(sa4->sin_addr);
+ host->h_addr_list[0] = (void *) &(sa4->sin_addr);
break;
#ifdef ENABLE_IPV6
case AF_INET6:
sa6 = (struct sockaddr_in6 *) res->ai_addr;
- alptr[0] = (void *) &(sa6->sin6_addr);
+ host->h_addr_list[0] = (void *) &(sa6->sin6_addr);
break;
#endif
default:
@@ -756,7 +753,7 @@ static int get_hostent_from_name(
errno = EINVAL;
return -1;
}
- alptr[1] = NULL;
+ host->h_addr_list[1] = NULL;
return 0;
}
@@ -767,7 +764,7 @@ int main(
char **argv)
{
char *alptr[2];
- struct hostent trhost;
+ struct hostent trhost = { .h_addr_list = alptr };
struct hostent *host = &trhost;
names_t *names_head = NULL;
names_t *names_walk;
@@ -837,7 +834,7 @@ int main(
sizeof(ctl.LocalHostname));
}
- if (get_hostent_from_name(&ctl, host, ctl.Hostname, alptr) != 0) {
+ if (get_hostent_from_name(&ctl, host, ctl.Hostname) != 0) {
if (ctl.Interactive)
exit(EXIT_FAILURE);
else {
--
2.27.0
From 92569b381b4f974bd3fdda0524b2b0bd2ce322e6 Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <aaron.lipinski@roboticsplus.co.nz>
Date: Tue, 6 Apr 2021 13:49:08 +1200
Subject: [PATCH 06/17] remove temporaries
---
ui/mtr.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/ui/mtr.c b/ui/mtr.c
index a8ccc0a..554264a 100644
--- a/ui/mtr.c
+++ b/ui/mtr.c
@@ -710,10 +710,6 @@ static int get_hostent_from_name(
{
int gai_error;
struct addrinfo hints, *res;
- struct sockaddr_in *sa4;
-#ifdef ENABLE_IPV6
- struct sockaddr_in6 *sa6;
-#endif
/* gethostbyname2() is deprecated so we'll use getaddrinfo() instead. */
memset(&hints, 0, sizeof hints);
@@ -738,13 +734,11 @@ static int get_hostent_from_name(
host->h_length = res->ai_addrlen;
switch (ctl->af) {
case AF_INET:
- sa4 = (struct sockaddr_in *) res->ai_addr;
- host->h_addr_list[0] = (void *) &(sa4->sin_addr);
+ host->h_addr_list[0] = (char*)&((struct sockaddr_in *)res->ai_addr)->sin_addr;
break;
#ifdef ENABLE_IPV6
case AF_INET6:
- sa6 = (struct sockaddr_in6 *) res->ai_addr;
- host->h_addr_list[0] = (void *) &(sa6->sin6_addr);
+ host->h_addr_list[0] = (char*)&((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
break;
#endif
default:
--
2.27.0
From b1f0f03a3a545695809183925fb259b44f2f2396 Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <aaron.lipinski@roboticsplus.co.nz>
Date: Tue, 6 Apr 2021 15:09:29 +1200
Subject: [PATCH 07/17] extract convert_addrinfo_to_hostent function
---
ui/mtr.c | 49 ++++++++++++++++++++++++++-----------------------
1 file changed, 26 insertions(+), 23 deletions(-)
diff --git a/ui/mtr.c b/ui/mtr.c
index 554264a..de32215 100644
--- a/ui/mtr.c
+++ b/ui/mtr.c
@@ -696,6 +696,30 @@ static void init_rand(
srand((getpid() << 16) ^ getuid() ^ tv.tv_sec ^ tv.tv_usec);
}
+static int convert_addrinfo_to_hostent(struct hostent *host, struct addrinfo *res)
+{
+ host->h_name = res->ai_canonname;
+ host->h_aliases = NULL;
+ host->h_addrtype = res->ai_family;
+ host->h_length = res->ai_addrlen;
+ switch (res->ai_family) {
+ case AF_INET:
+ host->h_addr_list[0] = (char*)&((struct sockaddr_in *)res->ai_addr)->sin_addr;
+ break;
+#ifdef ENABLE_IPV6
+ case AF_INET6:
+ host->h_addr_list[0] = (char*)&((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
+ break;
+#endif
+ default:
+ error(0, 0, "unknown address type");
+
+ errno = EINVAL;
+ return -1;
+ }
+ host->h_addr_list[1] = NULL;
+ return 0;
+}
/*
For historical reasons, we need a hostent structure to represent
@@ -726,30 +750,9 @@ static int get_hostent_from_name(
return -1;
}
- /* Convert the first addrinfo into a hostent. */
- host->h_name = res->ai_canonname;
- host->h_aliases = NULL;
- host->h_addrtype = res->ai_family;
ctl->af = res->ai_family;
- host->h_length = res->ai_addrlen;
- switch (ctl->af) {
- case AF_INET:
- host->h_addr_list[0] = (char*)&((struct sockaddr_in *)res->ai_addr)->sin_addr;
- break;
-#ifdef ENABLE_IPV6
- case AF_INET6:
- host->h_addr_list[0] = (char*)&((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
- break;
-#endif
- default:
- error(0, 0, "unknown address type");
-
- errno = EINVAL;
- return -1;
- }
- host->h_addr_list[1] = NULL;
-
- return 0;
+ /* Convert the first addrinfo into a hostent. */
+ return convert_addrinfo_to_hostent(host, res);
}
--
2.27.0
From 5fd5c2b59d0bf1517492d88e672e8d6e69df657d Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <aaron.lipinski@roboticsplus.co.nz>
Date: Tue, 6 Apr 2021 15:39:57 +1200
Subject: [PATCH 08/17] move conversion call to caller
---
ui/mtr.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/ui/mtr.c b/ui/mtr.c
index de32215..ff1d995 100644
--- a/ui/mtr.c
+++ b/ui/mtr.c
@@ -729,17 +729,17 @@ static int convert_addrinfo_to_hostent(struct hostent *host, struct addrinfo *re
*/
static int get_hostent_from_name(
struct mtr_ctl *ctl,
- struct hostent *host,
+ struct addrinfo **res,
const char *name)
{
int gai_error;
- struct addrinfo hints, *res;
+ struct addrinfo hints;
/* gethostbyname2() is deprecated so we'll use getaddrinfo() instead. */
memset(&hints, 0, sizeof hints);
hints.ai_family = ctl->af;
hints.ai_socktype = SOCK_DGRAM;
- gai_error = getaddrinfo(name, NULL, &hints, &res);
+ gai_error = getaddrinfo(name, NULL, &hints, res);
if (gai_error) {
if (gai_error == EAI_SYSTEM)
error(0, 0, "Failed to resolve host: %s", name);
@@ -750,9 +750,8 @@ static int get_hostent_from_name(
return -1;
}
- ctl->af = res->ai_family;
- /* Convert the first addrinfo into a hostent. */
- return convert_addrinfo_to_hostent(host, res);
+ ctl->af = (*res)->ai_family;
+ return 0;
}
@@ -831,7 +830,10 @@ int main(
sizeof(ctl.LocalHostname));
}
- if (get_hostent_from_name(&ctl, host, ctl.Hostname) != 0) {
+ struct addrinfo *res = NULL;
+ if (get_hostent_from_name(&ctl, &res, ctl.Hostname) != 0 ||
+ /* Convert the first addrinfo into a hostent. */
+ convert_addrinfo_to_hostent(host, res) != 0) {
if (ctl.Interactive)
exit(EXIT_FAILURE);
else {
--
2.27.0
From 6e2e4674a3c4c3ff7fb477bc7cf38ec9ccf8d4d3 Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <aaron.lipinski@roboticsplus.co.nz>
Date: Tue, 6 Apr 2021 16:00:41 +1200
Subject: [PATCH 09/17] use addrinfo
---
ui/mtr.c | 2 +-
ui/net.c | 10 +++++-----
ui/net.h | 4 ++--
3 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/ui/mtr.c b/ui/mtr.c
index ff1d995..253861b 100644
--- a/ui/mtr.c
+++ b/ui/mtr.c
@@ -842,7 +842,7 @@ int main(
}
}
- if (net_open(&ctl, host) != 0) {
+ if (net_open(&ctl, res) != 0) {
error(0, 0, "Unable to start net module");
if (ctl.Interactive)
exit(EXIT_FAILURE);
diff --git a/ui/net.c b/ui/net.c
index 60d33e0..1df3503 100644
--- a/ui/net.c
+++ b/ui/net.c
@@ -736,7 +736,7 @@ static void net_find_local_address(
int net_open(
struct mtr_ctl *ctl,
- struct hostent *hostent)
+ struct addrinfo *res)
{
int err;
@@ -746,7 +746,7 @@ int net_open(
return err;
}
- net_reopen(ctl, hostent);
+ net_reopen(ctl, res);
return 0;
}
@@ -754,7 +754,7 @@ int net_open(
void net_reopen(
struct mtr_ctl *ctl,
- struct hostent *hostent)
+ struct addrinfo *res)
{
int at;
@@ -764,9 +764,9 @@ void net_reopen(
net_reset(ctl);
- ctl->af = remotesockaddr->sa_family = sourcesockaddr->sa_family = hostent->h_addrtype;
+ ctl->af = remotesockaddr->sa_family = sourcesockaddr->sa_family = res->ai_family;
remoteaddress = sockaddr_addr_offset(remotesockaddr);
- memcpy(remoteaddress, hostent->h_addr, sockaddr_addr_size(remotesockaddr));
+ memcpy(remoteaddress, sockaddr_addr_offset(res->ai_addr), sockaddr_addr_size(remotesockaddr));
inet_ntop(remotesockaddr->sa_family, remoteaddress, remoteaddr, sizeof(remoteaddr));
sourceaddress = sockaddr_addr_offset(sourcesockaddr);
diff --git a/ui/net.h b/ui/net.h
index 38718fe..b323c25 100644
--- a/ui/net.h
+++ b/ui/net.h
@@ -33,10 +33,10 @@
extern int net_open(
struct mtr_ctl *ctl,
- struct hostent *host);
+ struct addrinfo *res);
extern void net_reopen(
struct mtr_ctl *ctl,
- struct hostent *address);
+ struct addrinfo *res);
extern void net_reset(
struct mtr_ctl *ctl);
extern void net_close(
--
2.27.0
From 5a45ca9cc2fb5d1e0d85b7421b938ee01204ab7e Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <aaron.lipinski@roboticsplus.co.nz>
Date: Tue, 6 Apr 2021 16:12:36 +1200
Subject: [PATCH 10/17] remove conversion function
---
ui/mtr.c | 32 +-------------------------------
1 file changed, 1 insertion(+), 31 deletions(-)
diff --git a/ui/mtr.c b/ui/mtr.c
index 253861b..8edca64 100644
--- a/ui/mtr.c
+++ b/ui/mtr.c
@@ -696,31 +696,6 @@ static void init_rand(
srand((getpid() << 16) ^ getuid() ^ tv.tv_sec ^ tv.tv_usec);
}
-static int convert_addrinfo_to_hostent(struct hostent *host, struct addrinfo *res)
-{
- host->h_name = res->ai_canonname;
- host->h_aliases = NULL;
- host->h_addrtype = res->ai_family;
- host->h_length = res->ai_addrlen;
- switch (res->ai_family) {
- case AF_INET:
- host->h_addr_list[0] = (char*)&((struct sockaddr_in *)res->ai_addr)->sin_addr;
- break;
-#ifdef ENABLE_IPV6
- case AF_INET6:
- host->h_addr_list[0] = (char*)&((struct sockaddr_in6 *)res->ai_addr)->sin6_addr;
- break;
-#endif
- default:
- error(0, 0, "unknown address type");
-
- errno = EINVAL;
- return -1;
- }
- host->h_addr_list[1] = NULL;
- return 0;
-}
-
/*
For historical reasons, we need a hostent structure to represent
our remote target for probing. The obsolete way of doing this
@@ -759,9 +734,6 @@ int main(
int argc,
char **argv)
{
- char *alptr[2];
- struct hostent trhost = { .h_addr_list = alptr };
- struct hostent *host = &trhost;
names_t *names_head = NULL;
names_t *names_walk;
@@ -831,9 +803,7 @@ int main(
}
struct addrinfo *res = NULL;
- if (get_hostent_from_name(&ctl, &res, ctl.Hostname) != 0 ||
- /* Convert the first addrinfo into a hostent. */
- convert_addrinfo_to_hostent(host, res) != 0) {
+ if (get_hostent_from_name(&ctl, &res, ctl.Hostname) != 0) {
if (ctl.Interactive)
exit(EXIT_FAILURE);
else {
--
2.27.0
From 6a8471e48d33a9017ed226d2f6084e655421a793 Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <kris.lipinski@gmail.com>
Date: Tue, 6 Apr 2021 16:52:18 +1200
Subject: [PATCH 11/17] switch gui to addrinfo
---
ui/gtk.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/ui/gtk.c b/ui/gtk.c
index a98154a..aa07324 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -244,11 +244,11 @@ static gint Host_activate(
gpointer data)
{
struct mtr_ctl *ctl = (struct mtr_ctl *) data;
- struct hostent *addr;
+ struct addrinfo *res = NULL;
- addr = gethostbyname(gtk_entry_get_text(GTK_ENTRY(entry)));
- if (addr) {
- net_reopen(ctl, addr);
+ ctl->Hostname = gtk_entry_get_text(GTK_ENTRY(entry));
+ if (get_hostent_from_name(ctl, &res, ctl->Hostname) == 0) {
+ net_reopen(ctl, res);
net_send_batch(ctl);
/* If we are "Paused" at this point it is usually because someone
entered a non-existing host. Therefore do the go-ahead... */
--
2.27.0
From cf1b9bc7e7e9d46153b91021ca1f102dc0c79ac5 Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <kris.lipinski@gmail.com>
Date: Thu, 8 Apr 2021 07:46:26 +1200
Subject: [PATCH 12/17] export DEFAULT_AF
---
ui/mtr.c | 7 -------
ui/mtr.h | 2 ++
2 files changed, 2 insertions(+), 7 deletions(-)
diff --git a/ui/mtr.c b/ui/mtr.c
index 8edca64..23411cb 100644
--- a/ui/mtr.c
+++ b/ui/mtr.c
@@ -63,13 +63,6 @@
#include "portability/getopt.h"
#endif
-#ifdef ENABLE_IPV6
-#define DEFAULT_AF AF_UNSPEC
-#else
-#define DEFAULT_AF AF_INET
-#endif
-
-
char *myname;
const struct fields data_fields[MAXFLD] = {
diff --git a/ui/mtr.h b/ui/mtr.h
index 01536f5..92dd8a1 100644
--- a/ui/mtr.h
+++ b/ui/mtr.h
@@ -32,8 +32,10 @@
/* Typedefs */
#ifdef ENABLE_IPV6
+#define DEFAULT_AF AF_UNSPEC
typedef struct in6_addr ip_t;
#else
+#define DEFAULT_AF AF_INET
typedef struct in_addr ip_t;
#endif
--
2.27.0
From fd29a7e6306743c04171decff08334cc3fca6e8e Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <kris.lipinski@gmail.com>
Date: Tue, 6 Apr 2021 16:57:59 +1200
Subject: [PATCH 13/17] reset addr family before searching again
---
ui/gtk.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/ui/gtk.c b/ui/gtk.c
index aa07324..6e3a376 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -246,6 +246,7 @@ static gint Host_activate(
struct mtr_ctl *ctl = (struct mtr_ctl *) data;
struct addrinfo *res = NULL;
+ ctl->af = DEFAULT_AF; // should this obey the cmd line option?
ctl->Hostname = gtk_entry_get_text(GTK_ENTRY(entry));
if (get_hostent_from_name(ctl, &res, ctl->Hostname) == 0) {
net_reopen(ctl, res);
--
2.27.0
From e956e556217fcdd1865d21dea1cfb87a96550046 Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <aaron.lipinski@roboticsplus.co.nz>
Date: Wed, 7 Apr 2021 13:08:36 +1200
Subject: [PATCH 14/17] freeaddrinfo
---
ui/gtk.c | 1 +
ui/mtr.c | 2 ++
2 files changed, 3 insertions(+)
diff --git a/ui/gtk.c b/ui/gtk.c
index 6e3a376..8ad0bbd 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -250,6 +250,7 @@ static gint Host_activate(
ctl->Hostname = gtk_entry_get_text(GTK_ENTRY(entry));
if (get_hostent_from_name(ctl, &res, ctl->Hostname) == 0) {
net_reopen(ctl, res);
+ freeaddrinfo(res);
net_send_batch(ctl);
/* If we are "Paused" at this point it is usually because someone
entered a non-existing host. Therefore do the go-ahead... */
diff --git a/ui/mtr.c b/ui/mtr.c
index 23411cb..9586780 100644
--- a/ui/mtr.c
+++ b/ui/mtr.c
@@ -815,6 +815,8 @@ int main(
}
}
+ freeaddrinfo(res);
+
lock(stdout);
dns_open();
display_open(&ctl);
--
2.27.0
From 6521dc4fb0a0aa6baff11af20b066b2f713edbf8 Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <aaron.lipinski@roboticsplus.co.nz>
Date: Wed, 7 Apr 2021 13:11:55 +1200
Subject: [PATCH 15/17] export get_hostent_from_name
---
ui/mtr.c | 4 ++--
ui/mtr.h | 6 ++++++
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/ui/mtr.c b/ui/mtr.c
index 9586780..a044d1e 100644
--- a/ui/mtr.c
+++ b/ui/mtr.c
@@ -38,7 +38,6 @@
#include <sys/limits.h>
#endif
-#include <netdb.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <ctype.h>
@@ -695,11 +694,12 @@ static void init_rand(
would be to use gethostbyname(). We'll use getaddrinfo() instead
to generate the hostent.
*/
-static int get_hostent_from_name(
+int get_hostent_from_name(
struct mtr_ctl *ctl,
struct addrinfo **res,
const char *name)
{
+ printf("get_hostent_from_name: %x %s\n", ctl->af, name);
int gai_error;
struct addrinfo hints;
diff --git a/ui/mtr.h b/ui/mtr.h
index 92dd8a1..5de5d9f 100644
--- a/ui/mtr.h
+++ b/ui/mtr.h
@@ -23,6 +23,7 @@
#include "config.h"
#include <stdint.h>
+#include <netdb.h>
#include <sys/socket.h>
#include <arpa/inet.h>
@@ -148,4 +149,9 @@ struct mplslen {
#define running_as_root() (getuid() == 0)
#endif
+int get_hostent_from_name(
+ struct mtr_ctl *ctl,
+ struct addrinfo **res,
+ const char *name);
+
#endif /* MTR_MTR_H */
--
2.27.0
From a351f650537e09f93738e3c76c06ebfa51552561 Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <aaron.lipinski@roboticsplus.co.nz>
Date: Wed, 7 Apr 2021 13:15:05 +1200
Subject: [PATCH 16/17] make Hostname as const
---
ui/mtr.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/ui/mtr.h b/ui/mtr.h
index 5de5d9f..46c7a18 100644
--- a/ui/mtr.h
+++ b/ui/mtr.h
@@ -85,7 +85,7 @@ struct mtr_ctl {
int MaxPing;
float WaitTime;
float GraceTime;
- char *Hostname;
+ const char *Hostname;
char *InterfaceName;
char *InterfaceAddress;
char LocalHostname[128];
--
2.27.0
From 9e01af2ac2e4bd6520ea41e453e770e092050c23 Mon Sep 17 00:00:00 2001
From: Aaron Lipinski <kris.lipinski@gmail.com>
Date: Thu, 8 Apr 2021 08:14:00 +1200
Subject: [PATCH 17/17] rename function
---
ui/gtk.c | 2 +-
ui/mtr.c | 5 ++---
ui/mtr.h | 2 +-
3 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/ui/gtk.c b/ui/gtk.c
index 8ad0bbd..7c4a9fd 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -248,7 +248,7 @@ static gint Host_activate(
ctl->af = DEFAULT_AF; // should this obey the cmd line option?
ctl->Hostname = gtk_entry_get_text(GTK_ENTRY(entry));
- if (get_hostent_from_name(ctl, &res, ctl->Hostname) == 0) {
+ if (get_addrinfo_from_name(ctl, &res, ctl->Hostname) == 0) {
net_reopen(ctl, res);
freeaddrinfo(res);
net_send_batch(ctl);
diff --git a/ui/mtr.c b/ui/mtr.c
index a044d1e..6fd0d70 100644
--- a/ui/mtr.c
+++ b/ui/mtr.c
@@ -694,12 +694,11 @@ static void init_rand(
would be to use gethostbyname(). We'll use getaddrinfo() instead
to generate the hostent.
*/
-int get_hostent_from_name(
+int get_addrinfo_from_name(
struct mtr_ctl *ctl,
struct addrinfo **res,
const char *name)
{
- printf("get_hostent_from_name: %x %s\n", ctl->af, name);
int gai_error;
struct addrinfo hints;
@@ -796,7 +795,7 @@ int main(
}
struct addrinfo *res = NULL;
- if (get_hostent_from_name(&ctl, &res, ctl.Hostname) != 0) {
+ if (get_addrinfo_from_name(&ctl, &res, ctl.Hostname) != 0) {
if (ctl.Interactive)
exit(EXIT_FAILURE);
else {
diff --git a/ui/mtr.h b/ui/mtr.h
index 46c7a18..9297be7 100644
--- a/ui/mtr.h
+++ b/ui/mtr.h
@@ -149,7 +149,7 @@ struct mplslen {
#define running_as_root() (getuid() == 0)
#endif
-int get_hostent_from_name(
+int get_addrinfo_from_name(
struct mtr_ctl *ctl,
struct addrinfo **res,
const char *name);
--
2.27.0
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