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core: add nm_platform_ip4_route_to_string for debugging

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Add convenience function to convert an IPv4 route to string.

Signed-off-by: Thomas Haller <thaller@redhat.com>
This commit is contained in:
Thomas Haller 2013-08-26 22:10:11 +02:00
parent fbde824584
commit c822b12cf1
2 changed files with 31 additions and 0 deletions
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29
src/platform/nm-platform.c
View file

@ -1568,6 +1568,35 @@ nm_platform_route_flush (int ifindex)
/******************************************************************/
/**
* nm_platform_ip4_route_to_string:
* @route: pointer to NMPlatformIP4Route route structure
*
* A method for converting a route struct into a string representation.
* This is only useful for printf debugging, if you want to log what's
* currently happening.
*
* Returns: a string with the content of the route. Must be freed by g_free.
*/
char *
nm_platform_ip4_route_to_string (const NMPlatformIP4Route *route)
{
char s_network[INET_ADDRSTRLEN], s_gateway[INET_ADDRSTRLEN], s_dev[16];
if (!route) {
return g_strdup ("<NULL>");
}
if (route->ifindex > 0) {
g_snprintf (s_dev, sizeof(s_dev), " dev [%d]", route->ifindex);
} else {
s_dev[0] = 0;
}
inet_ntop (AF_INET, &route->network, s_network, sizeof(s_network));
inet_ntop (AF_INET, &route->gateway, s_gateway, sizeof(s_gateway));
return g_strdup_printf("%s/%d via %s%s metric %d mss %d",
s_network, route->plen, s_gateway, s_dev,
route->metric, route->mss);
}
static void
log_link (NMPlatformLink *device, const char *change_type)
{

2
src/platform/nm-platform.h
View file

@ -420,6 +420,8 @@ gboolean nm_platform_ip4_route_sync (int ifindex, const GArray *known_routes);
gboolean nm_platform_ip6_route_sync (int ifindex, const GArray *known_routes);
gboolean nm_platform_route_flush (int ifindex);
char *nm_platform_ip4_route_to_string (const NMPlatformIP4Route *route);
#define auto_g_free __attribute__((cleanup(put_g_free)))
static void __attribute__((unused))
put_g_free (void *ptr)