+/*
+ * lib/addr.c Abstract Address
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
+ */
+
+/**
+ * @ingroup utils
+ * @defgroup addr Abstract Address
+ *
+ * @par 1) Transform character string to abstract address
+ * @code
+ * struct nl_addr *a = nl_addr_parse("::1", AF_UNSPEC);
+ * printf("Address family: %s\n", nl_af2str(nl_addr_get_family(a)));
+ * nl_addr_put(a);
+ * a = nl_addr_parse("11:22:33:44:55:66", AF_UNSPEC);
+ * printf("Address family: %s\n", nl_af2str(nl_addr_get_family(a)));
+ * nl_addr_put(a);
+ * @endcode
+ * @{
+ */
+
+#include <netlink-local.h>
+#include <netlink/netlink.h>
+#include <netlink/utils.h>
+#include <netlink/addr.h>
+#include <linux/socket.h>
+
+/* All this DECnet stuff is stolen from iproute2, thanks to whoever wrote
+ * this, probably Alexey. */
+static inline uint16_t dn_ntohs(uint16_t addr)
+{
+ union {
+ uint8_t byte[2];
+ uint16_t word;
+ } u = {
+ .word = addr,
+ };
+
+ return ((uint16_t) u.byte[0]) | (((uint16_t) u.byte[1]) << 8);
+}
+
+static inline int do_digit(char *str, uint16_t *addr, uint16_t scale,
+ size_t *pos, size_t len, int *started)
+{
+ uint16_t tmp = *addr / scale;
+
+ if (*pos == len)
+ return 1;
+
+ if (((tmp) > 0) || *started || (scale == 1)) {
+ *str = tmp + '0';
+ *started = 1;
+ (*pos)++;
+ *addr -= (tmp * scale);
+ }
+
+ return 0;
+}
+
+static const char *dnet_ntop(char *addrbuf, size_t addrlen, char *str,
+ size_t len)
+{
+ uint16_t addr = dn_ntohs(*(uint16_t *)addrbuf);
+ uint16_t area = addr >> 10;
+ size_t pos = 0;
+ int started = 0;
+
+ if (addrlen != 2)
+ return NULL;
+
+ addr &= 0x03ff;
+
+ if (len == 0)
+ return str;
+
+ if (do_digit(str + pos, &area, 10, &pos, len, &started))
+ return str;
+
+ if (do_digit(str + pos, &area, 1, &pos, len, &started))
+ return str;
+
+ if (pos == len)
+ return str;
+
+ *(str + pos) = '.';
+ pos++;
+ started = 0;
+
+ if (do_digit(str + pos, &addr, 1000, &pos, len, &started))
+ return str;
+
+ if (do_digit(str + pos, &addr, 100, &pos, len, &started))
+ return str;
+
+ if (do_digit(str + pos, &addr, 10, &pos, len, &started))
+ return str;
+
+ if (do_digit(str + pos, &addr, 1, &pos, len, &started))
+ return str;
+
+ if (pos == len)
+ return str;
+
+ *(str + pos) = 0;
+
+ return str;
+}
+
+static int dnet_num(const char *src, uint16_t * dst)
+{
+ int rv = 0;
+ int tmp;
+ *dst = 0;
+
+ while ((tmp = *src++) != 0) {
+ tmp -= '0';
+ if ((tmp < 0) || (tmp > 9))
+ return rv;
+
+ rv++;
+ (*dst) *= 10;
+ (*dst) += tmp;
+ }
+
+ return rv;
+}
+
+static inline int dnet_pton(const char *src, char *addrbuf)
+{
+ uint16_t area = 0;
+ uint16_t node = 0;
+ int pos;
+
+ pos = dnet_num(src, &area);
+ if ((pos == 0) || (area > 63) ||
+ ((*(src + pos) != '.') && (*(src + pos) != ',')))
+ return -EINVAL;
+
+ pos = dnet_num(src + pos + 1, &node);
+ if ((pos == 0) || (node > 1023))
+ return -EINVAL;
+
+ *(uint16_t *)addrbuf = dn_ntohs((area << 10) | node);
+
+ return 1;
+}
+
+/**
+ * @name Creating Abstract Addresses
+ * @{
+ */
+
+/**
+ * Allocate new abstract address object.
+ * @arg maxsize Maximum size of the binary address.
+ * @return Newly allocated address object or NULL
+ */
+struct nl_addr *nl_addr_alloc(size_t maxsize)
+{
+ struct nl_addr *addr;
+
+ addr = calloc(1, sizeof(*addr) + maxsize);
+ if (!addr) {
+ nl_errno(ENOMEM);
+ return NULL;
+ }
+
+ addr->a_refcnt = 1;
+ addr->a_maxsize = maxsize;
+
+ return addr;
+}
+
+/**
+ * Allocate new abstract address object based on a binary address.
+ * @arg family Address family.
+ * @arg buf Buffer containing the binary address.
+ * @arg size Length of binary address buffer.
+ * @return Newly allocated address handle or NULL
+ */
+struct nl_addr *nl_addr_build(int family, void *buf, size_t size)
+{
+ struct nl_addr *addr;
+
+ addr = nl_addr_alloc(size);
+ if (!addr)
+ return NULL;
+
+ addr->a_family = family;
+ addr->a_len = size;
+ addr->a_prefixlen = size*8;
+
+ if (size)
+ memcpy(addr->a_addr, buf, size);
+
+ return addr;
+}
+
+/**
+ * Allocate abstract address object based on a character string
+ * @arg addrstr Address represented as character string.
+ * @arg hint Address family hint or AF_UNSPEC.
+ *
+ * Regognizes the following address formats:
+ *@code
+ * Format Len Family
+ * ----------------------------------------------------------------
+ * IPv6 address format 16 AF_INET6
+ * ddd.ddd.ddd.ddd 4 AF_INET
+ * HH:HH:HH:HH:HH:HH 6 AF_LLC
+ * AA{.|,}NNNN 2 AF_DECnet
+ * HH:HH:HH:... variable AF_UNSPEC
+ * @endcode
+ *
+ * Special values:
+ * - none: All bits and length set to 0.
+ * - {default|all|any}: All bits set to 0, length based on hint or
+ * AF_INET if no hint is given.
+ *
+ * The prefix length may be appened at the end prefixed with a
+ * slash, e.g. 10.0.0.0/8.
+ *
+ * @return Newly allocated abstract address object or NULL.
+ */
+struct nl_addr *nl_addr_parse(const char *addrstr, int hint)
+{
+ int err, copy = 0, len = 0, family = AF_UNSPEC;
+ char *str, *prefix, buf[32];
+ struct nl_addr *addr = NULL; /* gcc ain't that smart */
+
+ str = strdup(addrstr);
+ if (!str) {
+ err = nl_errno(ENOMEM);
+ goto errout;
+ }
+
+ prefix = strchr(str, '/');
+ if (prefix)
+ *prefix = '\0';
+
+ if (!strcasecmp(str, "none")) {
+ family = hint;
+ goto prefix;
+ }
+
+ if (!strcasecmp(str, "default") ||
+ !strcasecmp(str, "all") ||
+ !strcasecmp(str, "any")) {
+
+ switch (hint) {
+ case AF_INET:
+ case AF_UNSPEC:
+ /* Kind of a hack, we assume that if there is
+ * no hint given the user wants to have a IPv4
+ * address given back. */
+ family = AF_INET;
+ len = 4;
+ goto prefix;
+
+ case AF_INET6:
+ family = AF_INET6;
+ len = 16;
+ goto prefix;
+
+ case AF_LLC:
+ family = AF_LLC;
+ len = 6;
+ goto prefix;
+
+ default:
+ err = nl_error(EINVAL, "Unsuported address" \
+ "family for default address");
+ goto errout;
+ }
+ }
+
+ copy = 1;
+
+ if (hint == AF_INET || hint == AF_UNSPEC) {
+ if (inet_pton(AF_INET, str, buf) > 0) {
+ family = AF_INET;
+ len = 4;
+ goto prefix;
+ }
+ if (hint == AF_INET) {
+ err = nl_error(EINVAL, "Invalid IPv4 address");
+ goto errout;
+ }
+ }
+
+ if (hint == AF_INET6 || hint == AF_UNSPEC) {
+ if (inet_pton(AF_INET6, str, buf) > 0) {
+ family = AF_INET6;
+ len = 16;
+ goto prefix;
+ }
+ if (hint == AF_INET6) {
+ err = nl_error(EINVAL, "Invalid IPv6 address");
+ goto errout;
+ }
+ }
+
+ if ((hint == AF_LLC || hint == AF_UNSPEC) && strchr(str, ':')) {
+ unsigned int a, b, c, d, e, f;
+
+ if (sscanf(str, "%02x:%02x:%02x:%02x:%02x:%02x",
+ &a, &b, &c, &d, &e, &f) == 6) {
+ family = AF_LLC;
+ len = 6;
+ buf[0] = (unsigned char) a;
+ buf[1] = (unsigned char) b;
+ buf[2] = (unsigned char) c;
+ buf[3] = (unsigned char) d;
+ buf[4] = (unsigned char) e;
+ buf[5] = (unsigned char) f;
+ goto prefix;
+ }
+
+ if (hint == AF_LLC) {
+ err = nl_error(EINVAL, "Invalid link layer address");
+ goto errout;
+ }
+ }
+
+ if ((hint == AF_DECnet || hint == AF_UNSPEC) &&
+ (strchr(str, '.') || strchr(str, ','))) {
+ if (dnet_pton(str, buf) > 0) {
+ family = AF_DECnet;
+ len = 2;
+ goto prefix;
+ }
+ if (hint == AF_DECnet) {
+ err = nl_error(EINVAL, "Invalid DECnet address");
+ goto errout;
+ }
+ }
+
+ if (hint == AF_UNSPEC && strchr(str, ':')) {
+ int i = 0;
+ char *s = str, *p;
+ for (;;) {
+ long l = strtol(s, &p, 16);
+
+ if (s == p || l > 0xff || i >= sizeof(buf)) {
+ err = -EINVAL;
+ goto errout;
+ }
+
+ buf[i++] = (unsigned char) l;
+ if (*p == '\0')
+ break;
+ s = ++p;
+ }
+
+ len = i;
+ family = AF_UNSPEC;
+ goto prefix;
+ }
+
+ err = nl_error(EINVAL, "Invalid address");
+ goto errout;
+
+prefix:
+ addr = nl_addr_alloc(len);
+ if (!addr) {
+ err = nl_errno(ENOMEM);
+ goto errout;
+ }
+
+ nl_addr_set_family(addr, family);
+
+ if (copy)
+ nl_addr_set_binary_addr(addr, buf, len);
+
+ if (prefix) {
+ char *p;
+ long pl = strtol(++prefix, &p, 0);
+ if (p == prefix) {
+ nl_addr_destroy(addr);
+ err = -EINVAL;
+ goto errout;
+ }
+ nl_addr_set_prefixlen(addr, pl);
+ } else
+ nl_addr_set_prefixlen(addr, len * 8);
+
+ err = 0;
+errout:
+ free(str);
+
+ return err ? NULL : addr;
+}
+
+/**
+ * Clone existing abstract address object.
+ * @arg addr Abstract address object.
+ * @return Newly allocated abstract address object being a duplicate of the
+ * specified address object or NULL if a failure occured.
+ */
+struct nl_addr *nl_addr_clone(struct nl_addr *addr)
+{
+ struct nl_addr *new;
+
+ new = nl_addr_build(addr->a_family, addr->a_addr, addr->a_len);
+ if (new)
+ new->a_prefixlen = addr->a_prefixlen;
+
+ return new;
+}
+
+/** @} */
+
+/**
+ * @name Destroying Abstract Addresses
+ * @{
+ */
+
+/**
+ * Destroy abstract address object.
+ * @arg addr Abstract address object.
+ */
+void nl_addr_destroy(struct nl_addr *addr)
+{
+ if (!addr)
+ return;
+
+ if (addr->a_refcnt != 1)
+ BUG();
+
+ free(addr);
+}
+
+/** @} */
+
+/**
+ * @name Managing Usage References
+ * @{
+ */
+
+/**
+ * Request undestroyable reference of abstract address object.
+ * @arg addr Abstract address object.
+ * @return Abstract address object of which the reference was given.
+ */
+struct nl_addr *nl_addr_get(struct nl_addr *addr)
+{
+ addr->a_refcnt++;
+
+ return addr;
+}
+
+/**
+ * Give back reference of abstract address object.
+ * @arg addr Abstract address object.
+ *
+ * Decrements the reference counter and destroys the object if the
+ * last reference was given back.
+ */
+void nl_addr_put(struct nl_addr *addr)
+{
+ if (!addr)
+ return;
+
+ if (addr->a_refcnt == 1)
+ nl_addr_destroy(addr);
+ else
+ addr->a_refcnt--;
+}
+
+/**
+ * Check whether an abstract address object is shared.
+ * @arg addr Abstract address object.
+ * @return Non-zero if the abstract address object is shared, otherwise 0.
+ */
+int nl_addr_shared(struct nl_addr *addr)
+{
+ return addr->a_refcnt > 1;
+}
+
+/** @} */
+
+/**
+ * @name Miscellaneous
+ * @{
+ */
+
+/**
+ * Compares two abstract address objects.
+ * @arg a A abstract address object.
+ * @arg b Another abstract address object.
+ *
+ * @return Integer less than, equal to or greather than zero if \c is found,
+ * respectively to be less than, to, or be greater than \c b.
+ */
+int nl_addr_cmp(struct nl_addr *a, struct nl_addr *b)
+{
+ int d = a->a_family - b->a_family;
+
+ if (d == 0) {
+ d = a->a_len - b->a_len;
+
+ if (a->a_len && d == 0)
+ return memcmp(a->a_addr, b->a_addr, a->a_len);
+ }
+
+ return d;
+}
+
+/**
+ * Check if an address matches a certain family.
+ * @arg addr Address represented as character string.
+ * @arg family Desired address family.
+ *
+ * @return 1 if the address is of the desired address family,
+ * otherwise 0 is returned.
+ */
+int nl_addr_valid(char *addr, int family)
+{
+ int ret;
+ char buf[32];
+
+ switch (family) {
+ case AF_INET:
+ case AF_INET6:
+ ret = inet_pton(family, addr, buf);
+ if (ret <= 0)
+ return 0;
+ break;
+
+ case AF_DECnet:
+ ret = dnet_pton(addr, buf);
+ if (ret <= 0)
+ return 0;
+ break;
+
+ case AF_LLC:
+ if (sscanf(addr, "%*02x:%*02x:%*02x:%*02x:%*02x:%*02x") != 6)
+ return 0;
+ break;
+ }
+
+ return 1;
+}
+
+/**
+ * Guess address family of an abstract address object based on address size.
+ * @arg addr Abstract address object.
+ * @return Address family or AF_UNSPEC if guessing wasn't successful.
+ */
+int nl_addr_guess_family(struct nl_addr *addr)
+{
+ switch (addr->a_len) {
+ case 4:
+ return AF_INET;
+ case 6:
+ return AF_LLC;
+ case 16:
+ return AF_INET6;
+ default:
+ return AF_UNSPEC;
+ }
+}
+
+/**
+ * Fill out sockaddr structure with values from abstract address object.
+ * @arg addr Abstract address object.
+ * @arg sa Destination sockaddr structure buffer.
+ * @arg salen Length of sockaddr structure buffer.
+ *
+ * Fills out the specified sockaddr structure with the data found in the
+ * specified abstract address. The salen argument needs to be set to the
+ * size of sa but will be modified to the actual size used during before
+ * the function exits.
+ *
+ * @return 0 on success or a negative error code
+ */
+int nl_addr_fill_sockaddr(struct nl_addr *addr, struct sockaddr *sa,
+ socklen_t *salen)
+{
+ switch (addr->a_family) {
+ case AF_INET: {
+ struct sockaddr_in *sai = (struct sockaddr_in *) sa;
+
+ if (*salen < sizeof(*sai))
+ return -EINVAL;
+
+ sai->sin_family = addr->a_family;
+ memcpy(&sai->sin_addr, addr->a_addr, 4);
+ *salen = sizeof(*sai);
+ }
+ break;
+
+ case AF_INET6: {
+ struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
+
+ if (*salen < sizeof(*sa6))
+ return -EINVAL;
+
+ sa6->sin6_family = addr->a_family;
+ memcpy(&sa6->sin6_addr, addr->a_addr, 16);
+ *salen = sizeof(*sa6);
+ }
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+
+/** @} */
+
+/**
+ * @name Getting Information About Addresses
+ * @{
+ */
+
+/**
+ * Call getaddrinfo() for an abstract address object.
+ * @arg addr Abstract address object.
+ *
+ * Calls getaddrinfo() for the specified abstract address in AI_NUMERICHOST
+ * mode.
+ *
+ * @note The caller is responsible for freeing the linked list using the
+ * interface provided by getaddrinfo(3).
+ *
+ * @return A linked list of addrinfo handles or NULL with an error message
+ * associated.
+ */
+struct addrinfo *nl_addr_info(struct nl_addr *addr)
+{
+ int err;
+ struct addrinfo *res;
+ char buf[INET6_ADDRSTRLEN+5];
+ struct addrinfo hint = {
+ .ai_flags = AI_NUMERICHOST,
+ .ai_family = addr->a_family,
+ };
+
+ nl_addr2str(addr, buf, sizeof(buf));
+
+ err = getaddrinfo(buf, NULL, &hint, &res);
+ if (err != 0) {
+ nl_error(err, gai_strerror(err));
+ return NULL;
+ }
+
+ return res;
+}
+
+/**
+ * Resolve abstract address object to a name using getnameinfo().
+ * @arg addr Abstract address object.
+ * @arg host Destination buffer for host name.
+ * @arg hostlen Length of destination buffer.
+ *
+ * Resolves the abstract address to a name and writes the looked up result
+ * into the host buffer. getnameinfo() is used to perform the lookup and
+ * is put into NI_NAMEREQD mode so the function will fail if the lookup
+ * couldn't be performed.
+ *
+ * @return 0 on success or a negative error code.
+ */
+int nl_addr_resolve(struct nl_addr *addr, char *host, size_t hostlen)
+{
+ int err;
+ struct sockaddr_in6 buf;
+ socklen_t salen = sizeof(buf);
+
+ err = nl_addr_fill_sockaddr(addr, (struct sockaddr *) &buf, &salen);
+ if (err < 0)
+ return err;
+
+ return getnameinfo((struct sockaddr *) &buf, salen,
+ host, hostlen, NULL, 0, NI_NAMEREQD);
+}
+
+/** @} */
+
+/**
+ * @name Attribute Access
+ * @{
+ */
+
+/**
+ * Set address family of abstract address object.
+ * @arg addr Abstract address object.
+ * @arg family New address family.
+ */
+void nl_addr_set_family(struct nl_addr *addr, int family)
+{
+ addr->a_family = family;
+}
+
+/**
+ * Get address family of abstract address object.
+ * @arg addr Abstract address object.
+ */
+int nl_addr_get_family(struct nl_addr *addr)
+{
+ return addr->a_family;
+}
+
+/**
+ * Set binary address of abstract address object.
+ * @arg addr Abstract address object.
+ * @arg buf Buffer containing binary address.
+ * @arg len Length of buffer containing binary address.
+ */
+int nl_addr_set_binary_addr(struct nl_addr *addr, void *buf, size_t len)
+{
+ if (len > addr->a_maxsize)
+ return -ERANGE;
+
+ addr->a_len = len;
+ memcpy(addr->a_addr, buf, len);
+
+ return 0;
+}
+
+/**
+ * Get binary address of abstract address object.
+ * @arg addr Abstract address object.
+ */
+void *nl_addr_get_binary_addr(struct nl_addr *addr)
+{
+ return addr->a_addr;
+}
+
+/**
+ * Get length of binary address of abstract address object.
+ * @arg addr Abstract address object.
+ */
+unsigned int nl_addr_get_len(struct nl_addr *addr)
+{
+ return addr->a_len;
+}
+
+/**
+ * Set prefix length of abstract address object.
+ * @arg addr Abstract address object.
+ * @arg prefixlen New prefix length.
+ */
+void nl_addr_set_prefixlen(struct nl_addr *addr, int prefixlen)
+{
+ addr->a_prefixlen = prefixlen;
+}
+
+/**
+ * Get prefix length of abstract address object.
+ * @arg addr Abstract address object.
+ */
+unsigned int nl_addr_get_prefixlen(struct nl_addr *addr)
+{
+ return addr->a_prefixlen;
+}
+
+/** @} */
+
+/**
+ * @name Translations to Strings
+ * @{
+ */
+
+/**
+ * Convert abstract address object to character string.
+ * @arg addr Abstract address object.
+ * @arg buf Destination buffer.
+ * @arg size Size of destination buffer.
+ *
+ * Converts an abstract address to a character string and stores
+ * the result in the specified destination buffer.
+ *
+ * @return Address represented in ASCII stored in destination buffer.
+ */
+char *nl_addr2str(struct nl_addr *addr, char *buf, size_t size)
+{
+ int i;
+ char tmp[16];
+
+ if (!addr->a_len) {
+ snprintf(buf, size, "none");
+ goto prefix;
+ }
+
+ switch (addr->a_family) {
+ case AF_INET:
+ inet_ntop(AF_INET, addr->a_addr, buf, size);
+ break;
+
+ case AF_INET6:
+ inet_ntop(AF_INET6, addr->a_addr, buf, size);
+ break;
+
+ case AF_DECnet:
+ dnet_ntop(addr->a_addr, addr->a_len, buf, size);
+ break;
+
+ case AF_LLC:
+ default:
+ snprintf(buf, size, "%02x", addr->a_addr[0]);
+ for (i = 1; i < addr->a_len; i++) {
+ snprintf(tmp, sizeof(tmp), ":%02x",
+ addr->a_addr[i]);
+ strncat(buf, tmp, size - strlen(buf) - 1);
+ }
+ break;
+ }
+
+prefix:
+ if (addr->a_prefixlen != (8 * addr->a_len)) {
+ snprintf(tmp, sizeof(tmp), "/%u", addr->a_prefixlen);
+ strncat(buf, tmp, size - strlen(buf) - 1);
+ }
+
+ return buf;
+}
+
+/** @} */
+
+/**
+ * @name Address Family Transformations
+ * @{
+ */
+
+static struct trans_tbl afs[] = {
+ __ADD(AF_UNSPEC,unspec)
+ __ADD(AF_UNIX,unix)
+ __ADD(AF_LOCAL,local)
+ __ADD(AF_INET,inet)
+ __ADD(AF_AX25,ax25)
+ __ADD(AF_IPX,ipx)
+ __ADD(AF_APPLETALK,appletalk)
+ __ADD(AF_NETROM,netrom)
+ __ADD(AF_BRIDGE,bridge)
+ __ADD(AF_ATMPVC,atmpvc)
+ __ADD(AF_X25,x25)
+ __ADD(AF_INET6,inet6)
+ __ADD(AF_ROSE,rose)
+ __ADD(AF_DECnet,decnet)
+ __ADD(AF_NETBEUI,netbeui)
+ __ADD(AF_SECURITY,security)
+ __ADD(AF_KEY,key)
+ __ADD(AF_NETLINK,netlink)
+ __ADD(AF_ROUTE,route)
+ __ADD(AF_PACKET,packet)
+ __ADD(AF_ASH,ash)
+ __ADD(AF_ECONET,econet)
+ __ADD(AF_ATMSVC,atmsvc)
+ __ADD(AF_SNA,sna)
+ __ADD(AF_IRDA,irda)
+ __ADD(AF_PPPOX,pppox)
+ __ADD(AF_WANPIPE,wanpipe)
+ __ADD(AF_LLC,llc)
+ __ADD(AF_BLUETOOTH,bluetooth)
+};
+
+
+/**
+ * Convert address family to character string.
+ * @arg family Address family.
+ * @arg buf Destination buffer.
+ * @arg size Size of destination buffer.
+ *
+ * Converts an address family to a character string and stores it in the
+ * provided buffer.
+ *
+ * @return The destination buffer or the type encoded in hexidecimal form
+ * if no match was found.
+ */
+char *nl_af2str(char family, char *buf, size_t size)
+{
+ return __type2str(family, buf, size, afs, ARRAY_SIZE(afs));
+}
+
+/**
+ * Convert character string to address family.
+ * @arg name Name of address family.
+ *
+ * Converts the provided character string specifying an address family
+ * to the corresponding numeric value.
+ *
+ * @return Address family as number or \c AF_UNSPEC.
+ */
+char nl_str2af(const char *name)
+{
+ char fam = __str2type(name, afs, ARRAY_SIZE(afs));
+ return fam >= 0 ? fam : AF_UNSPEC;
+}
+
+/** @} */
+
+/** @} */
git://git.onelab.eu / libnl.git / blobdiff