diff options
Diffstat (limited to 'lib/if.h')
| -rw-r--r-- | lib/if.h | 23 |
1 files changed, 10 insertions, 13 deletions
@@ -217,20 +217,17 @@ struct interface *if_lookup_by_index (unsigned int); struct interface *if_lookup_exact_address (struct in_addr); struct interface *if_lookup_address (struct in_addr); -/* Currently, the code assumes that the interface name arguments to these - functions have length <= INTERFACE_NAMSIZ, and they must be NUL-terminated - if they are shorter than INTERFACE_NAMSIZ. After code cleanup, the - implementation will be changed to require the arguments to these functions - to terminate with a NUL character (no length limitation). */ -struct interface *if_lookup_by_name (const char *); -struct interface *if_get_by_name (const char *); - -/* For these 2 functions, the 2nd argument should be the precise length - of the interface name (not counting a trailing NUL which may or may - not be present). */ -extern struct interface *if_lookup_by_name_len(const char *name, +/* These 2 functions are to be used when the ifname argument is terminated + by a '\0' character: */ +struct interface *if_lookup_by_name (const char *ifname); +struct interface *if_get_by_name (const char *ifname); + +/* For these 2 functions, the namelen argument should be the precise length + of the ifname string (not counting any optional trailing '\0' character). + In most cases, strnlen should be used to calculate the namelen value. */ +extern struct interface *if_lookup_by_name_len(const char *ifname, size_t namelen); -extern struct interface *if_get_by_name_len(const char *name, size_t namelen); +extern struct interface *if_get_by_name_len(const char *ifname, size_t namelen); /* Delete the interface, but do not free the structure, and leave it in the |