fix static build with openssl >= 3.2.0 (#240)

Rename tls_free into tport_tls_free as openssl also defines tls_free
since version 3.2.0 and
openssl/openssl@1853d20
resulting in the following static build failure:

/home/autobuild/autobuild/instance-12/output-1/host/lib/gcc/powerpc-buildroot-linux-uclibcspe/8.4.0/../../../../powerpc-buildroot-linux-uclibcspe/bin/ld: /home/autobuild/autobuild/instance-12/output-1/host/bin/../powerpc-buildroot-linux-uclibcspe/sysroot/usr/lib/libssl.a(libssl-lib-tls_common.o): in function `tls_free':
tls_common.c:(.text+0x808): multiple definition of `tls_free'; ../libsofia-sip-ua/.libs/libsofia-sip-ua.a(tport_tls.o):tport_tls.c:(.text+0x1128): first defined here

Fixes:
 - http://autobuild.buildroot.org/results/ee862bdafd44c8c56f77e2702ee0a7462634fa0b

Signed-off-by: Fabrice Fontaine <[email protected]>

Author: ffontaine

libsofia-sip-ua/tport/tport_tls.c

@@ -460,7 +460,7 @@ int tls_init_context(tls_t *tls, tls_issues_t const *ti)
   return 0;
 }
 
-void tls_free(tls_t *tls)
+void tport_tls_free(tls_t *tls)
 {
   int ret;
   if (!tls)
@@ -473,7 +473,7 @@ void tls_free(tls_t *tls)
         /* The return value -1 means that the connection wasn't actually established */
         /* so it should be safe to not call shutdown again. We need to clear the eror */
         /* queue for other connections though. */
-        tls_log_errors(3, "tls_free", 0);
+        tls_log_errors(3, "tport_tls_free", 0);
         ret = 1;
       }
     } while (ret != 1);
@@ -514,7 +514,7 @@ tls_t *tls_init_master(tls_issues_t *ti)
 
   if (tls_init_context(tls, ti) < 0) {
     int err = errno;
-    tls_free(tls);
+    tport_tls_free(tls);
     errno = err;
     return NULL;
   }
@@ -544,7 +544,7 @@ tls_t *tls_init_master(tls_issues_t *ti)
 
     if (tls->bio_con == NULL) {
       tls_log_errors(1, "tls_init_master", 0);
-      tls_free(tls);
+      tport_tls_free(tls);
       errno = EIO;
       return NULL;
     }
@@ -581,7 +581,7 @@ tls_t *tls_init_secondary(tls_t *master, int sock, int accept)
 
   if (tls->con == NULL) {
     tls_log_errors(1, "tls_init_secondary", 0);
-    tls_free(tls);
+    tport_tls_free(tls);
     errno = EIO;
     return NULL;
   }

libsofia-sip-ua/tport/tport_tls.h

@@ -81,7 +81,7 @@ typedef struct tport_tls_primary_s {
 
 tls_t *tls_init_master(tls_issues_t *tls_issues);
 tls_t *tls_init_secondary(tls_t *tls_master, int sock, int accept);
-void tls_free(tls_t *tls);
+void tport_tls_free(tls_t *tls);
 int tls_get_socket(tls_t *tls);
 void tls_log_errors(unsigned level, char const *s, unsigned long e);
 ssize_t tls_read(tls_t *tls);

libsofia-sip-ua/tport/tport_type_tls.c

@@ -276,7 +276,7 @@ static int tport_tls_init_master(tport_primary_t *pri,
 static void tport_tls_deinit_primary(tport_primary_t *pri)
 {
   tport_tls_primary_t *tlspri = (tport_tls_primary_t *)pri;
-  tls_free(tlspri->tlspri_master), tlspri->tlspri_master = NULL;
+  tport_tls_free(tlspri->tlspri_master), tlspri->tlspri_master = NULL;
 }
 
 static int tport_tls_init_secondary(tport_t *self, int socket, int accepted,
@@ -303,7 +303,7 @@ static void tport_tls_deinit_secondary(tport_t *self)
 
   /* XXX - PPe: does the tls_shutdown zap everything but socket? */
   if (tlstp->tlstp_context != NULL)
-    tls_free(tlstp->tlstp_context);
+    tport_tls_free(tlstp->tlstp_context);
   tlstp->tlstp_context = NULL;
 
   su_free(self->tp_home, tlstp->tlstp_buffer);