diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/net/if.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/net/if.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/net/if.h b/sysdeps/unix/sysv/linux/net/if.h index db86d20f23..01e9f00943 100644 --- a/sysdeps/unix/sysv/linux/net/if.h +++ b/sysdeps/unix/sysv/linux/net/if.h @@ -144,4 +144,23 @@ struct ifconf #define ifc_buf ifc_ifcu.ifcu_buf /* Buffer address. */ #define ifc_req ifc_ifcu.ifcu_req /* Array of structures. */ + +/* Convert an interface name to an index, and vice versa. */ + +unsigned int if_nametoindex(const char *ifname); +char *if_indextoname(unsigned int ifindex, char *ifname); + +/* Return a list of all interfaces and their indices. */ + +struct if_nameindex { + unsigned int if_index; /* 1, 2, ... */ + char *if_name; /* null terminated name: "eth0", ... */ +}; + +struct if_nameindex *if_nameindex(void); + +/* Free the data returned from if_nameindex. */ + +void if_freenameindex(struct if_nameindex *ptr); + #endif /* net/if.h */ |