test_json: Fix deprecation warnings

After a series of upgrades over recent weeks, I've discovered that
test_json.c won't compile in dev mode any more for me.

One of gcc-4.8.2, OS X Mavericks or Xcode 5 has decided to deprecate
tempnam. Which, in general, is a good thing. But for test code that just
needs a temporary file, it's just annoying.

This patch replaces usage of tempname with mkstemp, avoiding the
deprecation warning. It also removes the temporary files when the test
is complete, which apparently we weren't doing before (oops).

Review: https://reviewboard.asterisk.org/r/2957/
........

Merged revisions 401872 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@401873 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 38 insertions, 8 deletions

diff --git a/tests/test_json.c b/tests/test_json.c
index d6bc7a2c7..8ef490beb 100644
--- a/tests/test_json.c
+++ b/tests/test_json.c
@@ -41,6 +41,9 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/module.h"
 #include "asterisk/test.h"
 
+#include <stdio.h>
+#include <unistd.h>
+
 #define CATEGORY "/main/json/"
 
 /*!
@@ -1208,11 +1211,33 @@ static int safe_fclose(FILE *f)
 	return 0;
 }
 
+static FILE *mkstemp_file(char *template, const char *mode)
+{
+	int fd = mkstemp(template);
+	FILE *file;
+
+	if (fd < 0) {
+		ast_log(LOG_ERROR, "Failed to create temp file: %s\n",
+			strerror(errno));
+		return NULL;
+	}
+
+	file = fdopen(fd, mode);
+	if (!file) {
+		ast_log(LOG_ERROR, "Failed to create temp file: %s\n",
+			strerror(errno));
+		return NULL;
+	}
+
+	return file;
+}
+
 AST_TEST_DEFINE(json_test_dump_load_file)
 {
 	RAII_VAR(struct ast_json *, uut, NULL, ast_json_unref);
 	RAII_VAR(struct ast_json *, expected, NULL, ast_json_unref);
-	RAII_VAR(char *, filename, NULL, free);
+	char filename[] = "/tmp/ast_json.XXXXXX";
+	RAII_VAR(char *, rm_on_exit, filename, unlink);
 	RAII_VAR(FILE *, file, NULL, safe_fclose);
 	int uut_res;
 
@@ -1229,12 +1254,13 @@ AST_TEST_DEFINE(json_test_dump_load_file)
 
 	/* dump/load file */
 	expected = ast_json_pack("{ s: i }", "one", 1);
-	filename = tempnam(NULL, "ast-json");
-	file = fopen(filename, "w");
+	file = mkstemp_file(filename, "w");
+	ast_test_validate(test, NULL != file);
 	uut_res = ast_json_dump_file(expected, file);
 	ast_test_validate(test, 0 == uut_res);
 	fclose(file);
 	file = fopen(filename, "r");
+	ast_test_validate(test, NULL != file);
 	uut = ast_json_load_file(file, NULL);
 	ast_test_validate(test, ast_json_equal(expected, uut));
 
@@ -1245,7 +1271,9 @@ AST_TEST_DEFINE(json_test_dump_load_new_file)
 {
 	RAII_VAR(struct ast_json *, uut, NULL, ast_json_unref);
 	RAII_VAR(struct ast_json *, expected, NULL, ast_json_unref);
-	RAII_VAR(char *, filename, NULL, free);
+	char filename[] = "/tmp/ast_json.XXXXXX";
+	RAII_VAR(char *, rm_on_exit, filename, unlink);
+	RAII_VAR(FILE *, file, NULL, safe_fclose);
 	int uut_res;
 
 	switch (cmd) {
@@ -1261,7 +1289,8 @@ AST_TEST_DEFINE(json_test_dump_load_new_file)
 
 	/* dump/load filename */
 	expected = ast_json_pack("{ s: i }", "one", 1);
-	filename = tempnam(NULL, "ast-json");
+	file = mkstemp_file(filename, "w");
+	ast_test_validate(test, NULL != file);
 	uut_res = ast_json_dump_new_file(expected, filename);
 	ast_test_validate(test, 0 == uut_res);
 	uut = ast_json_load_new_file(filename, NULL);
@@ -1273,7 +1302,8 @@ AST_TEST_DEFINE(json_test_dump_load_new_file)
 AST_TEST_DEFINE(json_test_dump_load_null)
 {
 	RAII_VAR(struct ast_json *, uut, NULL, ast_json_unref);
-	RAII_VAR(char *, filename, NULL, free);
+	char filename[] = "/tmp/ast_json.XXXXXX";
+	RAII_VAR(char *, rm_on_exit, filename, unlink);
 	RAII_VAR(FILE *, file, NULL, safe_fclose);
 
 	switch (cmd) {
@@ -1290,8 +1320,8 @@ AST_TEST_DEFINE(json_test_dump_load_null)
 	/* dump/load NULL tests */
 	uut = ast_json_load_string("{ \"one\": 1 }", NULL);
 	ast_test_validate(test, NULL != uut);
-	filename = tempnam(NULL, "ast-json");
-	file = fopen(filename, "w");
+	file = mkstemp_file(filename, "w");
+	ast_test_validate(test, NULL != file);
 	ast_test_validate(test, NULL == ast_json_dump_string(NULL));
 	ast_test_validate(test, -1 == ast_json_dump_file(NULL, file));
 	ast_test_validate(test, -1 == ast_json_dump_file(uut, NULL));