TT#179351 fix coredump at getaddrinfo

Change-Id: I617e7d8d3c10b7d692e5f8a4fd633fe9c1e23a04
(cherry picked from commit 9f8e5919ca)

debian/patches/series

@@ -42,6 +42,7 @@ upstream/dialog-dlg_get_var-assure-return-null-on-error.patch
 upstream/dialog-w_dlg_get_var-fix-incompatible-pointer.patch
 upstream/topos-skip-adding-contact-header-for-BYE-CANCEL-PRAC.patch
 ### relevant for upstream
+sipwise/core-fix-freeaddrinfo-coredump.patch
 sipwise/pua_dialoginfo-refresh_pubruri_avps_flag.patch
 sipwise/pua_dialoginfo-use-lock-when-use_puburi_avps-is-set.patch
 sipwise/pua_dialoginfo-local_identity_dlg_var.patch

debian/patches/sipwise/core-fix-freeaddrinfo-coredump.patch

@@ -0,0 +1,30 @@
+From: Victor Seva <vseva@sipwise.com>
+Date: Wed, 22 Jun 2022 12:26:46 +0200
+Subject: core: fix freeaddrinfo coredump
+
+> #0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
+> #1  0x00007fbb5e515537 in __GI_abort () at abort.c:79
+> #2  0x00007fbb5e56e768 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7fbb5e67ce2d "%s\n") at ../sysdeps/posix/libc_fatal.c:155
+> #3  0x00007fbb5e575a5a in malloc_printerr (str=str@entry=0x7fbb5e67b05a "free(): invalid pointer") at malloc.c:5347
+> #4  0x00007fbb5e576c14 in _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at malloc.c:4173
+> #5  0x00007fbb5e5d8da0 in __GI_freeaddrinfo (ai=ai@entry=0x7fbb5e83ba10) at ../sysdeps/posix/getaddrinfo.c:2520
+> #6  0x000055ba099dcd0b in log_init () at core/dprint.c:482
+> #7  0x000055ba09970d7a in main (argc=10, argv=0x7ffde85a1788) at main.c:2055
+---
+ src/core/dprint.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/src/core/dprint.c b/src/core/dprint.c
+index 9b01dc8..f4780bb 100644
+--- a/src/core/dprint.c
++++ b/src/core/dprint.c
+@@ -459,7 +459,8 @@ static str log_prefix_str = STR_NULL;
+ 
+ void log_init(void)
+ {
+-	struct addrinfo hints, *info;
++	struct addrinfo hints;
++	struct addrinfo *info = NULL;
+ 	int gai_result;
+ 	char hostname[1024];
+