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-rw-r--r--lib/libc/net/if_indextoname.c154
-rw-r--r--lib/libc/net/if_nameindex.c207
-rw-r--r--lib/libc/net/if_nametoindex.c117
3 files changed, 220 insertions, 258 deletions
diff --git a/lib/libc/net/if_indextoname.c b/lib/libc/net/if_indextoname.c
index b3c89fb9a8b..cca862de617 100644
--- a/lib/libc/net/if_indextoname.c
+++ b/lib/libc/net/if_indextoname.c
@@ -1,34 +1,6 @@
/*
* %%% copyright-cmetz-98-bsd
* Copyright (c) 1998-1999, Craig Metz, All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by Craig Metz and
- * by other contributors.
- * 4. Neither the name of the author nor the names of contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -45,7 +17,7 @@
* 4. Neither the name of the author nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
- *
+ *
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -57,7 +29,6 @@
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- *
*/
#include <sys/types.h>
@@ -67,75 +38,82 @@
#include <net/if.h>
#include <net/if_dl.h>
#include <errno.h>
+#include <string.h>
-static char __name[IFNAMSIZ + 1];
+static char __name[IFNAMSIZ];
-char *if_indextoname(unsigned int index, char *name)
+char *
+if_indextoname(unsigned int index, char *name)
{
- int i, fd;
- struct ifconf ifconf;
- void *p;
- int len;
- char lastname[IFNAMSIZ + 1];
- char iname[IFNAMSIZ + 1];
- char *retname = NULL;
+ int i, fd, len;
+ struct ifconf ifconf;
+ char lastname[IFNAMSIZ], iname[IFNAMSIZ], *retname = NULL;
+ struct sockaddr *sa;
+ void *p;
- if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0)
- return 0;
+ if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0)
+ return 0;
- if (!name)
- name = __name;
+ if (!name)
+ name = __name;
- ifconf.ifc_len = 0;
- ifconf.ifc_buf = 0;
- if (ioctl(fd, SIOCGIFCONF, (void *)&ifconf))
- goto ret;
- if (ifconf.ifc_len < IFNAMSIZ)
- goto ret;
- if (!(ifconf.ifc_buf = malloc(ifconf.ifc_len)))
- goto ret;
- if (ioctl(fd, SIOCGIFCONF, (void *)&ifconf))
- goto ret;
+ ifconf.ifc_len = 0;
+ ifconf.ifc_buf = 0;
+ if (ioctl(fd, SIOCGIFCONF, (void *) &ifconf))
+ goto ret;
+ if (ifconf.ifc_len < IFNAMSIZ)
+ goto ret;
+ if (!(ifconf.ifc_buf = malloc(ifconf.ifc_len)))
+ goto ret;
+ if (ioctl(fd, SIOCGIFCONF, (void *) &ifconf))
+ goto ret;
- i = 0;
- p = ifconf.ifc_buf;
- len = ifconf.ifc_len;
- lastname[0] = 0;
- lastname[IFNAMSIZ] = 0;
- iname[0] = 0;
+ i = 0;
+ p = ifconf.ifc_buf;
+ len = ifconf.ifc_len;
+ lastname[0] = 0;
+ lastname[sizeof(lastname)-1] = 0;
+ iname[0] = 0;
- while(len > 0) {
- if (len < (IFNAMSIZ + sizeof(struct sockaddr)))
- goto ret;
- if (strncmp(lastname, p, IFNAMSIZ)) {
- if (i == index)
- strcpy(iname, lastname);
- memcpy(lastname, p, IFNAMSIZ);
- i++;
- };
- len -= IFNAMSIZ;
- p += IFNAMSIZ;
+ while (len > 0) {
+ if (len < (IFNAMSIZ + sizeof(struct sockaddr)))
+ goto ret;
+ if (strncmp(lastname, p, IFNAMSIZ)) {
+ if (i == index)
+ memcpy(iname, lastname, sizeof(iname));
+ strlcpy(lastname, p, sizeof(lastname));
+ i++;
+ }
+ len -= IFNAMSIZ;
+ p += IFNAMSIZ;
+ sa = p;
- if (((struct sockaddr *)p)->sa_family == AF_LINK)
- if (((struct sockaddr_dl *)p)->sdl_index == index) {
- strcpy(retname = name, lastname);
- goto ret;
- };
+ if (sa->sa_family == AF_LINK) {
+ struct sockaddr_dl *sd = p;
- if (len < SA_LEN((struct sockaddr *)p))
- goto ret;
- len -= SA_LEN((struct sockaddr *)p);
- p += SA_LEN((struct sockaddr *)p);
- };
+ if (sd->sdl_index == index) {
+ strlcpy(name, lastname, sizeof(name));
+ retname = name;
+ goto ret;
+ }
+ }
- if (i == index)
- strcpy(iname, lastname);
+ if (len < sa->sa_len)
+ goto ret;
+ len -= sa->sa_len;
+ p += sa->sa_len;
+ }
- if (iname[0])
- strcpy(retname = name, iname);
+ if (i == index)
+ strlcpy(iname, lastname, sizeof(iname));
+ if (iname[0]) {
+ strlcpy(name, iname, sizeof(name));
+ retname = name;
+ }
ret:
- close(fd);
- free(ifconf.ifc_buf);
- return retname;
-};
+ close(fd);
+ if (ifconf.ifc_buf)
+ free(ifconf.ifc_buf);
+ return (retname);
+}
diff --git a/lib/libc/net/if_nameindex.c b/lib/libc/net/if_nameindex.c
index 2acbeeb3f87..8714c1f95a1 100644
--- a/lib/libc/net/if_nameindex.c
+++ b/lib/libc/net/if_nameindex.c
@@ -1,34 +1,6 @@
/*
* %%% copyright-cmetz-98-bsd
* Copyright (c) 1998-1999, Craig Metz, All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by Craig Metz and
- * by other contributors.
- * 4. Neither the name of the author nor the names of contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -45,7 +17,7 @@
* 4. Neither the name of the author nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
- *
+ *
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -57,7 +29,6 @@
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- *
*/
#include <stdlib.h>
@@ -67,102 +38,108 @@
#include <net/if.h>
#include <net/if_dl.h>
#include <errno.h>
+#include <string.h>
-struct if_nameindex *if_nameindex(void)
+struct if_nameindex *
+if_nameindex(void)
{
- int i, j, fd;
- struct if_nameindex *nameindex = NULL;
- struct ifconf ifconf;
- void *p;
- int len;
- char lastname[IFNAMSIZ + 1];
-
- if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0)
- return NULL;
+ int i, j, fd, len;
+ struct if_nameindex *nameindex = NULL;
+ struct ifconf ifconf;
+ char lastname[IFNAMSIZ], *c;
+ struct if_nameindex *n;
+ struct sockaddr_dl *sd;
+ struct sockaddr *sa;
+ void *p;
- ifconf.ifc_len = 0;
- ifconf.ifc_buf = 0;
- if (ioctl(fd, SIOCGIFCONF, (void *)&ifconf))
- goto ret;
- if (ifconf.ifc_len < IFNAMSIZ)
- goto ret;
- if (!(ifconf.ifc_buf = malloc(ifconf.ifc_len)))
- goto ret;
- if (ioctl(fd, SIOCGIFCONF, (void *)&ifconf))
- goto ret;
+ if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0)
+ return NULL;
- i = sizeof(struct if_nameindex);
- j = 0;
- p = ifconf.ifc_buf;
- len = ifconf.ifc_len;
- lastname[0] = 0;
- lastname[IFNAMSIZ] = 0;
+ ifconf.ifc_len = 0;
+ ifconf.ifc_buf = 0;
+ if (ioctl(fd, SIOCGIFCONF, (void *) &ifconf))
+ goto ret;
+ if (ifconf.ifc_len < IFNAMSIZ)
+ goto ret;
+ if (!(ifconf.ifc_buf = malloc(ifconf.ifc_len)))
+ goto ret;
+ if (ioctl(fd, SIOCGIFCONF, (void *) &ifconf))
+ goto ret;
- while(len > 0) {
- if (len < (IFNAMSIZ + sizeof(struct sockaddr)))
- goto ret;
- if (strncmp(lastname, p, IFNAMSIZ)) {
- memcpy(lastname, p, IFNAMSIZ);
- i += sizeof(struct if_nameindex);
- j += strlen(lastname) + 1;
- };
- len -= IFNAMSIZ;
- p += IFNAMSIZ;
+ i = sizeof(struct if_nameindex);
+ j = 0;
+ p = ifconf.ifc_buf;
+ len = ifconf.ifc_len;
+ lastname[0] = 0;
+ lastname[sizeof(lastname)-1] = 0;
- if (len < SA_LEN((struct sockaddr *)p))
- goto ret;
- len -= SA_LEN((struct sockaddr *)p);
- p += SA_LEN((struct sockaddr *)p);
- };
+ while (len > 0) {
+ if (len < (IFNAMSIZ + sizeof(struct sockaddr)))
+ goto ret;
+ if (strncmp(lastname, p, IFNAMSIZ)) {
+ strlcpy(lastname, p, sizeof(lastname));
+ i += sizeof(struct if_nameindex);
+ j += strlen(lastname) + 1;
+ }
+ len -= IFNAMSIZ;
+ p += IFNAMSIZ;
+ sa = p;
- if (!(nameindex = malloc(i + j))) {
- errno = ENOMEM;
- goto ret;
- };
- memset(nameindex, 0, i + j);
+ if (len < sa->sa_len)
+ goto ret;
+ len -= sa->sa_len;
+ p += sa->sa_len;
+ }
- {
- struct if_nameindex *n;
- char *c;
+ nameindex = malloc(i + j);
+ if (nameindex == NULL) {
+ errno = ENOMEM;
+ goto ret;
+ }
+ memset(nameindex, 0, i + j);
- n = nameindex;
- p = ifconf.ifc_buf;
- c = (void *)nameindex + i;
- i = 0;
- len = ifconf.ifc_len;
- lastname[0] = 0;
+ n = nameindex;
+ p = ifconf.ifc_buf;
+ c = (void *) nameindex + i;
+ i = 0;
+ len = ifconf.ifc_len;
+ lastname[0] = 0;
- while(len > 0) {
- if (len < (IFNAMSIZ + sizeof(struct sockaddr)))
- goto ret;
- if (strncmp(lastname, p, IFNAMSIZ)) {
- if (i) {
- if (!n->if_index)
- n->if_index = i;
- n++;
- };
- i++;
- memcpy(lastname, p, IFNAMSIZ);
- strcpy(n->if_name = c, lastname);
- c += strlen(c) + 1;
- };
- len -= IFNAMSIZ;
- p += IFNAMSIZ;
+ while (len > 0) {
+ if (len < IFNAMSIZ + sizeof(struct sockaddr))
+ goto ret;
+ if (strncmp(lastname, p, IFNAMSIZ)) {
+ if (i) {
+ if (!n->if_index)
+ n->if_index = i;
+ n++;
+ }
+ i++;
+ memcpy(lastname, p, sizeof(lastname));
+ strlcpy(c, lastname, sizeof(lastname));
+ n->if_name = c;
+ c += strlen(c) + 1;
+ }
+ len -= IFNAMSIZ;
+ p += IFNAMSIZ;
+ sa = p;
- if (len < SA_LEN((struct sockaddr *)p))
- goto ret;
- if (((struct sockaddr *)p)->sa_family == AF_LINK)
- n->if_index = ((struct sockaddr_dl *)p)->sdl_index;
- len -= SA_LEN((struct sockaddr *)p);
- p += SA_LEN((struct sockaddr *)p);
- };
+ if (len < sa->sa_len)
+ goto ret;
+ if (sa->sa_family == AF_LINK) {
+ struct sockaddr_dl *sd = (struct sockaddr_dl *)sa;
+ n->if_index = sd->sdl_index;
+ }
+ len -= sa->sa_len;
+ p += sa->sa_len;
+ }
- if (!n->if_index)
- n->if_index = i;
- };
+ if (n->if_index == 0)
+ n->if_index = i;
ret:
- close(fd);
- free(ifconf.ifc_buf);
- return nameindex;
-};
+ close(fd);
+ if (ifconf.ifc_buf)
+ free(ifconf.ifc_buf);
+ return (nameindex);
+}
diff --git a/lib/libc/net/if_nametoindex.c b/lib/libc/net/if_nametoindex.c
index ad05387e34b..0318f606808 100644
--- a/lib/libc/net/if_nametoindex.c
+++ b/lib/libc/net/if_nametoindex.c
@@ -1,7 +1,7 @@
/*
* %%% copyright-cmetz-98-bsd
* Copyright (c) 1998-1999, Craig Metz, All rights reserved.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
@@ -17,7 +17,7 @@
* 4. Neither the name of the author nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
- *
+ *
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -29,7 +29,6 @@
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- *
*/
#include <sys/types.h>
@@ -38,69 +37,77 @@
#include <sys/ioctl.h>
#include <net/if.h>
#include <net/if_dl.h>
+#include <string.h>
#include <errno.h>
-unsigned int if_nametoindex(const char *name)
+unsigned int
+if_nametoindex(const char *name)
{
- int i, fd;
- struct ifconf ifconf;
- void *p;
- int len;
- char lastname[IFNAMSIZ + 1], *thisname;
- unsigned int index = 0;
+ int i, fd, len;
+ struct ifconf ifconf;
+ char lastname[IFNAMSIZ], *thisname;
+ unsigned int index = 0;
+ struct sockaddr *sa;
+ void *p;
+
+ if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0)
+ return 0;
- if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0)
- return 0;
+ ifconf.ifc_len = 0;
+ ifconf.ifc_buf = 0;
+ if (ioctl(fd, SIOCGIFCONF, (void *) &ifconf))
+ goto ret;
+ if (ifconf.ifc_len < IFNAMSIZ)
+ goto ret;
+ if (!(ifconf.ifc_buf = malloc(ifconf.ifc_len)))
+ goto ret;
+ if (ioctl(fd, SIOCGIFCONF, (void *) &ifconf))
+ goto ret;
- ifconf.ifc_len = 0;
- ifconf.ifc_buf = 0;
- if (ioctl(fd, SIOCGIFCONF, (void *)&ifconf))
- goto ret;
- if (ifconf.ifc_len < IFNAMSIZ)
- goto ret;
- if (!(ifconf.ifc_buf = malloc(ifconf.ifc_len)))
- goto ret;
- if (ioctl(fd, SIOCGIFCONF, (void *)&ifconf))
- goto ret;
+ i = 0;
+ p = ifconf.ifc_buf;
+ len = ifconf.ifc_len;
+ lastname[0] = 0;
+ lastname[sizeof(lastname)-1] = 0;
- i = 0;
- p = ifconf.ifc_buf;
- len = ifconf.ifc_len;
- lastname[0] = 0;
- lastname[IFNAMSIZ] = 0;
+ while (len > 0) {
+ if (len < IFNAMSIZ + sizeof(struct sockaddr))
+ goto ret;
- while(len > 0) {
- if (len < (IFNAMSIZ + sizeof(struct sockaddr)))
- goto ret;
+ thisname = p;
+ if (strncmp(lastname, p, IFNAMSIZ)) {
+ if (!strcmp(lastname, name)) {
+ index = i;
+ goto ret;
+ }
+ memcpy(lastname, thisname, IFNAMSIZ);
+ i++;
+ }
- if (strncmp(lastname, thisname = p, IFNAMSIZ)) {
- if (!strcmp(lastname, name)) {
- index = i;
- goto ret;
- };
- memcpy(lastname, thisname, IFNAMSIZ);
- i++;
- };
+ len -= IFNAMSIZ;
+ p += IFNAMSIZ;
+ sa = (struct sockaddr *)p;
- len -= IFNAMSIZ;
- p += IFNAMSIZ;
+ if (!strncmp(thisname, name, IFNAMSIZ) &&
+ sa->sa_family == AF_LINK) {
+ struct sockaddr_dl *sd = p;
- if (!strncmp(thisname, name, IFNAMSIZ) && (((struct sockaddr *)p)->sa_family == AF_LINK)) {
- index = ((struct sockaddr_dl *)p)->sdl_index;
- goto ret;
- };
+ index = sd->sdl_index;
+ goto ret;
+ }
- if (len < SA_LEN((struct sockaddr *)p))
- goto ret;
- len -= SA_LEN((struct sockaddr *)p);
- p += SA_LEN((struct sockaddr *)p);
- };
+ if (len < sa->sa_len)
+ goto ret;
+ len -= sa->sa_len;
+ p += sa->sa_len;
+ }
- if (!strcmp(lastname, name))
- index = i;
+ if (!strcmp(lastname, name))
+ index = i;
ret:
- close(fd);
- free(ifconf.ifc_buf);
- return index;
-};
+ close(fd);
+ if (ifconf.ifc_buf)
+ free(ifconf.ifc_buf);
+ return index;
+}