libtimezonemap/0004-Fix-memory-leaks-in-tz.c.patch
David Shea 51a02b6c80 Update the map data and improve behavior:
- Render the map directly from SVG (#1335158)
- Fix memory leaks in tz.c
- Fix an invalid memory access
- Do not modify TZ in the process environment
- Move all data files to /usr/share/libtimezonemap from .../libtimezonemap/ui
- Add extra city data so all timezone offsets are clickable
- Move Venezuela from -04:30 to -04:00
- Fix the conversion of points just west of 180 longitude
- Remove the out-of-date Olson map data
- Update the "backward" file
- Improve the location selected when setting the timezone by name (#1322648)
- Remove an extra line in the +10:00 layer
- Move Chile back an hour
2016-06-29 14:56:01 -04:00

89 lines
2.7 KiB
Diff

From da929a5f69a414fce6f2b5f8e02e4c978b020bb3 Mon Sep 17 00:00:00 2001
From: David Shea <dshea@redhat.com>
Date: Fri, 8 Apr 2016 11:58:04 -0400
Subject: [PATCH 04/24] Fix memory leaks in tz.c
Use a stack-allocated block for the user_data struct passed to
parse_cities15000, since the struct itself is not needed after
parse_file, and no one can forget to free it if it's not dynamically
allocated the first place.
Use const strings in tz_data_file_get so that the return value does not
need to be duplicated and freed.
---
src/tz.c | 24 ++++++++++--------------
1 file changed, 10 insertions(+), 14 deletions(-)
diff --git a/src/tz.c b/src/tz.c
index 0b5f208..9aa9e8a 100644
--- a/src/tz.c
+++ b/src/tz.c
@@ -41,7 +41,7 @@ static float convert_pos (gchar *pos, int digits);
#endif
static int compare_country_names (const void *a, const void *b);
static void sort_locations_by_country (GPtrArray *locations);
-static gchar * tz_data_file_get (gchar *env, gchar *defaultfile);
+static const gchar * tz_data_file_get (const gchar *env, const gchar *defaultfile);
void parse_file (const char * filename,
const guint ncolumns,
@@ -179,7 +179,7 @@ void parse_cities15000 (gpointer parsed_data,
TzDB *
tz_load_db (void)
{
- gchar *tz_data_file, *admin1_file, *country_file;
+ const gchar *tz_data_file, *admin1_file, *country_file;
TzDB *tz_db;
char buf[4096];
@@ -217,23 +217,19 @@ tz_load_db (void)
tz_db = g_new0 (TzDB, 1);
tz_db->locations = g_ptr_array_new ();
- Triple * triple = g_new (Triple, 1);
- triple->first = tz_db->locations;
- triple->second = stateHash;
- triple->third = countryHash;
+ Triple triple;
+ triple.first = tz_db->locations;
+ triple.second = stateHash;
+ triple.third = countryHash;
- parse_file (tz_data_file, 19, parse_cities15000, triple);
+ parse_file (tz_data_file, 19, parse_cities15000, &triple);
g_hash_table_destroy (stateHash);
g_hash_table_destroy (countryHash);
- triple->second = NULL;
- triple->third = NULL;
/* now sort by country */
sort_locations_by_country (tz_db->locations);
- g_free (tz_data_file);
-
return tz_db;
}
@@ -391,14 +387,14 @@ tz_info_free (TzInfo *tzinfo)
* Private functions *
* ----------------- */
-static gchar *
-tz_data_file_get (gchar *env, gchar *defaultfile)
+static const gchar *
+tz_data_file_get (const gchar *env, const gchar *defaultfile)
{
/* Allow passing this in at runtime, to support loading it from the build
* tree during tests. */
const gchar * filename = g_getenv (env);
- return filename ? g_strdup (filename) : g_strdup (defaultfile);
+ return filename ? filename : defaultfile;
}
#ifdef __sun
--
2.5.5