diff options
author | deraadt <> | 1999-07-01 15:35:59 +0000 |
---|---|---|
committer | deraadt <> | 1999-07-01 15:35:59 +0000 |
commit | 46185cb50e9a84c11cc2fadb8473a7e5fade5720 (patch) | |
tree | fedc56b026976844b92f1a6a2c1ada08e2dccc4e | |
parent | dd458924abbd1c3b8bc94a76408b499c98e3b95f (diff) | |
download | openbsd-46185cb50e9a84c11cc2fadb8473a7e5fade5720.tar.gz openbsd-46185cb50e9a84c11cc2fadb8473a7e5fade5720.tar.bz2 openbsd-46185cb50e9a84c11cc2fadb8473a7e5fade5720.zip |
indent and audit
-rw-r--r-- | src/lib/libc/net/if_indextoname.c | 154 | ||||
-rw-r--r-- | src/lib/libc/net/if_nameindex.c | 207 | ||||
-rw-r--r-- | src/lib/libc/net/if_nametoindex.c | 117 |
3 files changed, 220 insertions, 258 deletions
diff --git a/src/lib/libc/net/if_indextoname.c b/src/lib/libc/net/if_indextoname.c index b3c89fb9a8..cca862de61 100644 --- a/src/lib/libc/net/if_indextoname.c +++ b/src/lib/libc/net/if_indextoname.c | |||
@@ -1,34 +1,6 @@ | |||
1 | /* | 1 | /* |
2 | * %%% copyright-cmetz-98-bsd | 2 | * %%% copyright-cmetz-98-bsd |
3 | * Copyright (c) 1998-1999, Craig Metz, All rights reserved. | 3 | * Copyright (c) 1998-1999, Craig Metz, All rights reserved. |
4 | * | ||
5 | * Redistribution and use in source and binary forms, with or without | ||
6 | * modification, are permitted provided that the following conditions | ||
7 | * are met: | ||
8 | * 1. Redistributions of source code must retain the above copyright | ||
9 | * notice, this list of conditions and the following disclaimer. | ||
10 | * 2. Redistributions in binary form must reproduce the above copyright | ||
11 | * notice, this list of conditions and the following disclaimer in the | ||
12 | * documentation and/or other materials provided with the distribution. | ||
13 | * 3. All advertising materials mentioning features or use of this software | ||
14 | * must display the following acknowledgement: | ||
15 | * This product includes software developed by Craig Metz and | ||
16 | * by other contributors. | ||
17 | * 4. Neither the name of the author nor the names of contributors | ||
18 | * may be used to endorse or promote products derived from this software | ||
19 | * without specific prior written permission. | ||
20 | * | ||
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | ||
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | ||
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
31 | * SUCH DAMAGE. | ||
32 | * | 4 | * |
33 | * Redistribution and use in source and binary forms, with or without | 5 | * Redistribution and use in source and binary forms, with or without |
34 | * modification, are permitted provided that the following conditions | 6 | * modification, are permitted provided that the following conditions |
@@ -45,7 +17,7 @@ | |||
45 | * 4. Neither the name of the author nor the names of contributors | 17 | * 4. Neither the name of the author nor the names of contributors |
46 | * may be used to endorse or promote products derived from this software | 18 | * may be used to endorse or promote products derived from this software |
47 | * without specific prior written permission. | 19 | * without specific prior written permission. |
48 | * | 20 | * |
49 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
50 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
51 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
@@ -57,7 +29,6 @@ | |||
57 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
58 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
59 | * SUCH DAMAGE. | 31 | * SUCH DAMAGE. |
60 | * | ||
61 | */ | 32 | */ |
62 | 33 | ||
63 | #include <sys/types.h> | 34 | #include <sys/types.h> |
@@ -67,75 +38,82 @@ | |||
67 | #include <net/if.h> | 38 | #include <net/if.h> |
68 | #include <net/if_dl.h> | 39 | #include <net/if_dl.h> |
69 | #include <errno.h> | 40 | #include <errno.h> |
41 | #include <string.h> | ||
70 | 42 | ||
71 | static char __name[IFNAMSIZ + 1]; | 43 | static char __name[IFNAMSIZ]; |
72 | 44 | ||
73 | char *if_indextoname(unsigned int index, char *name) | 45 | char * |
46 | if_indextoname(unsigned int index, char *name) | ||
74 | { | 47 | { |
75 | int i, fd; | 48 | int i, fd, len; |
76 | struct ifconf ifconf; | 49 | struct ifconf ifconf; |
77 | void *p; | 50 | char lastname[IFNAMSIZ], iname[IFNAMSIZ], *retname = NULL; |
78 | int len; | 51 | struct sockaddr *sa; |
79 | char lastname[IFNAMSIZ + 1]; | 52 | void *p; |
80 | char iname[IFNAMSIZ + 1]; | ||
81 | char *retname = NULL; | ||
82 | 53 | ||
83 | if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0) | 54 | if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0) |
84 | return 0; | 55 | return 0; |
85 | 56 | ||
86 | if (!name) | 57 | if (!name) |
87 | name = __name; | 58 | name = __name; |
88 | 59 | ||
89 | ifconf.ifc_len = 0; | 60 | ifconf.ifc_len = 0; |
90 | ifconf.ifc_buf = 0; | 61 | ifconf.ifc_buf = 0; |
91 | if (ioctl(fd, SIOCGIFCONF, (void *)&ifconf)) | 62 | if (ioctl(fd, SIOCGIFCONF, (void *) &ifconf)) |
92 | goto ret; | 63 | goto ret; |
93 | if (ifconf.ifc_len < IFNAMSIZ) | 64 | if (ifconf.ifc_len < IFNAMSIZ) |
94 | goto ret; | 65 | goto ret; |
95 | if (!(ifconf.ifc_buf = malloc(ifconf.ifc_len))) | 66 | if (!(ifconf.ifc_buf = malloc(ifconf.ifc_len))) |
96 | goto ret; | 67 | goto ret; |
97 | if (ioctl(fd, SIOCGIFCONF, (void *)&ifconf)) | 68 | if (ioctl(fd, SIOCGIFCONF, (void *) &ifconf)) |
98 | goto ret; | 69 | goto ret; |
99 | 70 | ||
100 | i = 0; | 71 | i = 0; |
101 | p = ifconf.ifc_buf; | 72 | p = ifconf.ifc_buf; |
102 | len = ifconf.ifc_len; | 73 | len = ifconf.ifc_len; |
103 | lastname[0] = 0; | 74 | lastname[0] = 0; |
104 | lastname[IFNAMSIZ] = 0; | 75 | lastname[sizeof(lastname)-1] = 0; |
105 | iname[0] = 0; | 76 | iname[0] = 0; |
106 | 77 | ||
107 | while(len > 0) { | 78 | while (len > 0) { |
108 | if (len < (IFNAMSIZ + sizeof(struct sockaddr))) | 79 | if (len < (IFNAMSIZ + sizeof(struct sockaddr))) |
109 | goto ret; | 80 | goto ret; |
110 | if (strncmp(lastname, p, IFNAMSIZ)) { | 81 | if (strncmp(lastname, p, IFNAMSIZ)) { |
111 | if (i == index) | 82 | if (i == index) |
112 | strcpy(iname, lastname); | 83 | memcpy(iname, lastname, sizeof(iname)); |
113 | memcpy(lastname, p, IFNAMSIZ); | 84 | strlcpy(lastname, p, sizeof(lastname)); |
114 | i++; | 85 | i++; |
115 | }; | 86 | } |
116 | len -= IFNAMSIZ; | 87 | len -= IFNAMSIZ; |
117 | p += IFNAMSIZ; | 88 | p += IFNAMSIZ; |
89 | sa = p; | ||
118 | 90 | ||
119 | if (((struct sockaddr *)p)->sa_family == AF_LINK) | 91 | if (sa->sa_family == AF_LINK) { |
120 | if (((struct sockaddr_dl *)p)->sdl_index == index) { | 92 | struct sockaddr_dl *sd = p; |
121 | strcpy(retname = name, lastname); | ||
122 | goto ret; | ||
123 | }; | ||
124 | 93 | ||
125 | if (len < SA_LEN((struct sockaddr *)p)) | 94 | if (sd->sdl_index == index) { |
126 | goto ret; | 95 | strlcpy(name, lastname, sizeof(name)); |
127 | len -= SA_LEN((struct sockaddr *)p); | 96 | retname = name; |
128 | p += SA_LEN((struct sockaddr *)p); | 97 | goto ret; |
129 | }; | 98 | } |
99 | } | ||
130 | 100 | ||
131 | if (i == index) | 101 | if (len < sa->sa_len) |
132 | strcpy(iname, lastname); | 102 | goto ret; |
103 | len -= sa->sa_len; | ||
104 | p += sa->sa_len; | ||
105 | } | ||
133 | 106 | ||
134 | if (iname[0]) | 107 | if (i == index) |
135 | strcpy(retname = name, iname); | 108 | strlcpy(iname, lastname, sizeof(iname)); |
136 | 109 | ||
110 | if (iname[0]) { | ||
111 | strlcpy(name, iname, sizeof(name)); | ||
112 | retname = name; | ||
113 | } | ||
137 | ret: | 114 | ret: |
138 | close(fd); | 115 | close(fd); |
139 | free(ifconf.ifc_buf); | 116 | if (ifconf.ifc_buf) |
140 | return retname; | 117 | free(ifconf.ifc_buf); |
141 | }; | 118 | return (retname); |
119 | } | ||
diff --git a/src/lib/libc/net/if_nameindex.c b/src/lib/libc/net/if_nameindex.c index 2acbeeb3f8..8714c1f95a 100644 --- a/src/lib/libc/net/if_nameindex.c +++ b/src/lib/libc/net/if_nameindex.c | |||
@@ -1,34 +1,6 @@ | |||
1 | /* | 1 | /* |
2 | * %%% copyright-cmetz-98-bsd | 2 | * %%% copyright-cmetz-98-bsd |
3 | * Copyright (c) 1998-1999, Craig Metz, All rights reserved. | 3 | * Copyright (c) 1998-1999, Craig Metz, All rights reserved. |
4 | * | ||
5 | * Redistribution and use in source and binary forms, with or without | ||
6 | * modification, are permitted provided that the following conditions | ||
7 | * are met: | ||
8 | * 1. Redistributions of source code must retain the above copyright | ||
9 | * notice, this list of conditions and the following disclaimer. | ||
10 | * 2. Redistributions in binary form must reproduce the above copyright | ||
11 | * notice, this list of conditions and the following disclaimer in the | ||
12 | * documentation and/or other materials provided with the distribution. | ||
13 | * 3. All advertising materials mentioning features or use of this software | ||
14 | * must display the following acknowledgement: | ||
15 | * This product includes software developed by Craig Metz and | ||
16 | * by other contributors. | ||
17 | * 4. Neither the name of the author nor the names of contributors | ||
18 | * may be used to endorse or promote products derived from this software | ||
19 | * without specific prior written permission. | ||
20 | * | ||
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | ||
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | ||
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
31 | * SUCH DAMAGE. | ||
32 | * | 4 | * |
33 | * Redistribution and use in source and binary forms, with or without | 5 | * Redistribution and use in source and binary forms, with or without |
34 | * modification, are permitted provided that the following conditions | 6 | * modification, are permitted provided that the following conditions |
@@ -45,7 +17,7 @@ | |||
45 | * 4. Neither the name of the author nor the names of contributors | 17 | * 4. Neither the name of the author nor the names of contributors |
46 | * may be used to endorse or promote products derived from this software | 18 | * may be used to endorse or promote products derived from this software |
47 | * without specific prior written permission. | 19 | * without specific prior written permission. |
48 | * | 20 | * |
49 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
50 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
51 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
@@ -57,7 +29,6 @@ | |||
57 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
58 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
59 | * SUCH DAMAGE. | 31 | * SUCH DAMAGE. |
60 | * | ||
61 | */ | 32 | */ |
62 | 33 | ||
63 | #include <stdlib.h> | 34 | #include <stdlib.h> |
@@ -67,102 +38,108 @@ | |||
67 | #include <net/if.h> | 38 | #include <net/if.h> |
68 | #include <net/if_dl.h> | 39 | #include <net/if_dl.h> |
69 | #include <errno.h> | 40 | #include <errno.h> |
41 | #include <string.h> | ||
70 | 42 | ||
71 | struct if_nameindex *if_nameindex(void) | 43 | struct if_nameindex * |
44 | if_nameindex(void) | ||
72 | { | 45 | { |
73 | int i, j, fd; | 46 | int i, j, fd, len; |
74 | struct if_nameindex *nameindex = NULL; | 47 | struct if_nameindex *nameindex = NULL; |
75 | struct ifconf ifconf; | 48 | struct ifconf ifconf; |
76 | void *p; | 49 | char lastname[IFNAMSIZ], *c; |
77 | int len; | 50 | struct if_nameindex *n; |
78 | char lastname[IFNAMSIZ + 1]; | 51 | struct sockaddr_dl *sd; |
79 | 52 | struct sockaddr *sa; | |
80 | if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0) | 53 | void *p; |
81 | return NULL; | ||
82 | 54 | ||
83 | ifconf.ifc_len = 0; | 55 | if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0) |
84 | ifconf.ifc_buf = 0; | 56 | return NULL; |
85 | if (ioctl(fd, SIOCGIFCONF, (void *)&ifconf)) | ||
86 | goto ret; | ||
87 | if (ifconf.ifc_len < IFNAMSIZ) | ||
88 | goto ret; | ||
89 | if (!(ifconf.ifc_buf = malloc(ifconf.ifc_len))) | ||
90 | goto ret; | ||
91 | if (ioctl(fd, SIOCGIFCONF, (void *)&ifconf)) | ||
92 | goto ret; | ||
93 | 57 | ||
94 | i = sizeof(struct if_nameindex); | 58 | ifconf.ifc_len = 0; |
95 | j = 0; | 59 | ifconf.ifc_buf = 0; |
96 | p = ifconf.ifc_buf; | 60 | if (ioctl(fd, SIOCGIFCONF, (void *) &ifconf)) |
97 | len = ifconf.ifc_len; | 61 | goto ret; |
98 | lastname[0] = 0; | 62 | if (ifconf.ifc_len < IFNAMSIZ) |
99 | lastname[IFNAMSIZ] = 0; | 63 | goto ret; |
64 | if (!(ifconf.ifc_buf = malloc(ifconf.ifc_len))) | ||
65 | goto ret; | ||
66 | if (ioctl(fd, SIOCGIFCONF, (void *) &ifconf)) | ||
67 | goto ret; | ||
100 | 68 | ||
101 | while(len > 0) { | 69 | i = sizeof(struct if_nameindex); |
102 | if (len < (IFNAMSIZ + sizeof(struct sockaddr))) | 70 | j = 0; |
103 | goto ret; | 71 | p = ifconf.ifc_buf; |
104 | if (strncmp(lastname, p, IFNAMSIZ)) { | 72 | len = ifconf.ifc_len; |
105 | memcpy(lastname, p, IFNAMSIZ); | 73 | lastname[0] = 0; |
106 | i += sizeof(struct if_nameindex); | 74 | lastname[sizeof(lastname)-1] = 0; |
107 | j += strlen(lastname) + 1; | ||
108 | }; | ||
109 | len -= IFNAMSIZ; | ||
110 | p += IFNAMSIZ; | ||
111 | 75 | ||
112 | if (len < SA_LEN((struct sockaddr *)p)) | 76 | while (len > 0) { |
113 | goto ret; | 77 | if (len < (IFNAMSIZ + sizeof(struct sockaddr))) |
114 | len -= SA_LEN((struct sockaddr *)p); | 78 | goto ret; |
115 | p += SA_LEN((struct sockaddr *)p); | 79 | if (strncmp(lastname, p, IFNAMSIZ)) { |
116 | }; | 80 | strlcpy(lastname, p, sizeof(lastname)); |
81 | i += sizeof(struct if_nameindex); | ||
82 | j += strlen(lastname) + 1; | ||
83 | } | ||
84 | len -= IFNAMSIZ; | ||
85 | p += IFNAMSIZ; | ||
86 | sa = p; | ||
117 | 87 | ||
118 | if (!(nameindex = malloc(i + j))) { | 88 | if (len < sa->sa_len) |
119 | errno = ENOMEM; | 89 | goto ret; |
120 | goto ret; | 90 | len -= sa->sa_len; |
121 | }; | 91 | p += sa->sa_len; |
122 | memset(nameindex, 0, i + j); | 92 | } |
123 | 93 | ||
124 | { | 94 | nameindex = malloc(i + j); |
125 | struct if_nameindex *n; | 95 | if (nameindex == NULL) { |
126 | char *c; | 96 | errno = ENOMEM; |
97 | goto ret; | ||
98 | } | ||
99 | memset(nameindex, 0, i + j); | ||
127 | 100 | ||
128 | n = nameindex; | 101 | n = nameindex; |
129 | p = ifconf.ifc_buf; | 102 | p = ifconf.ifc_buf; |
130 | c = (void *)nameindex + i; | 103 | c = (void *) nameindex + i; |
131 | i = 0; | 104 | i = 0; |
132 | len = ifconf.ifc_len; | 105 | len = ifconf.ifc_len; |
133 | lastname[0] = 0; | 106 | lastname[0] = 0; |
134 | 107 | ||
135 | while(len > 0) { | 108 | while (len > 0) { |
136 | if (len < (IFNAMSIZ + sizeof(struct sockaddr))) | 109 | if (len < IFNAMSIZ + sizeof(struct sockaddr)) |
137 | goto ret; | 110 | goto ret; |
138 | if (strncmp(lastname, p, IFNAMSIZ)) { | 111 | if (strncmp(lastname, p, IFNAMSIZ)) { |
139 | if (i) { | 112 | if (i) { |
140 | if (!n->if_index) | 113 | if (!n->if_index) |
141 | n->if_index = i; | 114 | n->if_index = i; |
142 | n++; | 115 | n++; |
143 | }; | 116 | } |
144 | i++; | 117 | i++; |
145 | memcpy(lastname, p, IFNAMSIZ); | 118 | memcpy(lastname, p, sizeof(lastname)); |
146 | strcpy(n->if_name = c, lastname); | 119 | strlcpy(c, lastname, sizeof(lastname)); |
147 | c += strlen(c) + 1; | 120 | n->if_name = c; |
148 | }; | 121 | c += strlen(c) + 1; |
149 | len -= IFNAMSIZ; | 122 | } |
150 | p += IFNAMSIZ; | 123 | len -= IFNAMSIZ; |
124 | p += IFNAMSIZ; | ||
125 | sa = p; | ||
151 | 126 | ||
152 | if (len < SA_LEN((struct sockaddr *)p)) | 127 | if (len < sa->sa_len) |
153 | goto ret; | 128 | goto ret; |
154 | if (((struct sockaddr *)p)->sa_family == AF_LINK) | 129 | if (sa->sa_family == AF_LINK) { |
155 | n->if_index = ((struct sockaddr_dl *)p)->sdl_index; | 130 | struct sockaddr_dl *sd = (struct sockaddr_dl *)sa; |
156 | len -= SA_LEN((struct sockaddr *)p); | 131 | n->if_index = sd->sdl_index; |
157 | p += SA_LEN((struct sockaddr *)p); | 132 | } |
158 | }; | 133 | len -= sa->sa_len; |
134 | p += sa->sa_len; | ||
135 | } | ||
159 | 136 | ||
160 | if (!n->if_index) | 137 | if (n->if_index == 0) |
161 | n->if_index = i; | 138 | n->if_index = i; |
162 | }; | ||
163 | 139 | ||
164 | ret: | 140 | ret: |
165 | close(fd); | 141 | close(fd); |
166 | free(ifconf.ifc_buf); | 142 | if (ifconf.ifc_buf) |
167 | return nameindex; | 143 | free(ifconf.ifc_buf); |
168 | }; | 144 | return (nameindex); |
145 | } | ||
diff --git a/src/lib/libc/net/if_nametoindex.c b/src/lib/libc/net/if_nametoindex.c index ad05387e34..0318f60680 100644 --- a/src/lib/libc/net/if_nametoindex.c +++ b/src/lib/libc/net/if_nametoindex.c | |||
@@ -1,7 +1,7 @@ | |||
1 | /* | 1 | /* |
2 | * %%% copyright-cmetz-98-bsd | 2 | * %%% copyright-cmetz-98-bsd |
3 | * Copyright (c) 1998-1999, Craig Metz, All rights reserved. | 3 | * Copyright (c) 1998-1999, Craig Metz, All rights reserved. |
4 | * | 4 | * |
5 | * Redistribution and use in source and binary forms, with or without | 5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions | 6 | * modification, are permitted provided that the following conditions |
7 | * are met: | 7 | * are met: |
@@ -17,7 +17,7 @@ | |||
17 | * 4. Neither the name of the author nor the names of contributors | 17 | * 4. Neither the name of the author nor the names of contributors |
18 | * may be used to endorse or promote products derived from this software | 18 | * may be used to endorse or promote products derived from this software |
19 | * without specific prior written permission. | 19 | * without specific prior written permission. |
20 | * | 20 | * |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
@@ -29,7 +29,6 @@ | |||
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
31 | * SUCH DAMAGE. | 31 | * SUCH DAMAGE. |
32 | * | ||
33 | */ | 32 | */ |
34 | 33 | ||
35 | #include <sys/types.h> | 34 | #include <sys/types.h> |
@@ -38,69 +37,77 @@ | |||
38 | #include <sys/ioctl.h> | 37 | #include <sys/ioctl.h> |
39 | #include <net/if.h> | 38 | #include <net/if.h> |
40 | #include <net/if_dl.h> | 39 | #include <net/if_dl.h> |
40 | #include <string.h> | ||
41 | #include <errno.h> | 41 | #include <errno.h> |
42 | 42 | ||
43 | unsigned int if_nametoindex(const char *name) | 43 | unsigned int |
44 | if_nametoindex(const char *name) | ||
44 | { | 45 | { |
45 | int i, fd; | 46 | int i, fd, len; |
46 | struct ifconf ifconf; | 47 | struct ifconf ifconf; |
47 | void *p; | 48 | char lastname[IFNAMSIZ], *thisname; |
48 | int len; | 49 | unsigned int index = 0; |
49 | char lastname[IFNAMSIZ + 1], *thisname; | 50 | struct sockaddr *sa; |
50 | unsigned int index = 0; | 51 | void *p; |
52 | |||
53 | if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0) | ||
54 | return 0; | ||
51 | 55 | ||
52 | if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0) | 56 | ifconf.ifc_len = 0; |
53 | return 0; | 57 | ifconf.ifc_buf = 0; |
58 | if (ioctl(fd, SIOCGIFCONF, (void *) &ifconf)) | ||
59 | goto ret; | ||
60 | if (ifconf.ifc_len < IFNAMSIZ) | ||
61 | goto ret; | ||
62 | if (!(ifconf.ifc_buf = malloc(ifconf.ifc_len))) | ||
63 | goto ret; | ||
64 | if (ioctl(fd, SIOCGIFCONF, (void *) &ifconf)) | ||
65 | goto ret; | ||
54 | 66 | ||
55 | ifconf.ifc_len = 0; | 67 | i = 0; |
56 | ifconf.ifc_buf = 0; | 68 | p = ifconf.ifc_buf; |
57 | if (ioctl(fd, SIOCGIFCONF, (void *)&ifconf)) | 69 | len = ifconf.ifc_len; |
58 | goto ret; | 70 | lastname[0] = 0; |
59 | if (ifconf.ifc_len < IFNAMSIZ) | 71 | lastname[sizeof(lastname)-1] = 0; |
60 | goto ret; | ||
61 | if (!(ifconf.ifc_buf = malloc(ifconf.ifc_len))) | ||
62 | goto ret; | ||
63 | if (ioctl(fd, SIOCGIFCONF, (void *)&ifconf)) | ||
64 | goto ret; | ||
65 | 72 | ||
66 | i = 0; | 73 | while (len > 0) { |
67 | p = ifconf.ifc_buf; | 74 | if (len < IFNAMSIZ + sizeof(struct sockaddr)) |
68 | len = ifconf.ifc_len; | 75 | goto ret; |
69 | lastname[0] = 0; | ||
70 | lastname[IFNAMSIZ] = 0; | ||
71 | 76 | ||
72 | while(len > 0) { | 77 | thisname = p; |
73 | if (len < (IFNAMSIZ + sizeof(struct sockaddr))) | 78 | if (strncmp(lastname, p, IFNAMSIZ)) { |
74 | goto ret; | 79 | if (!strcmp(lastname, name)) { |
80 | index = i; | ||
81 | goto ret; | ||
82 | } | ||
83 | memcpy(lastname, thisname, IFNAMSIZ); | ||
84 | i++; | ||
85 | } | ||
75 | 86 | ||
76 | if (strncmp(lastname, thisname = p, IFNAMSIZ)) { | 87 | len -= IFNAMSIZ; |
77 | if (!strcmp(lastname, name)) { | 88 | p += IFNAMSIZ; |
78 | index = i; | 89 | sa = (struct sockaddr *)p; |
79 | goto ret; | ||
80 | }; | ||
81 | memcpy(lastname, thisname, IFNAMSIZ); | ||
82 | i++; | ||
83 | }; | ||
84 | 90 | ||
85 | len -= IFNAMSIZ; | 91 | if (!strncmp(thisname, name, IFNAMSIZ) && |
86 | p += IFNAMSIZ; | 92 | sa->sa_family == AF_LINK) { |
93 | struct sockaddr_dl *sd = p; | ||
87 | 94 | ||
88 | if (!strncmp(thisname, name, IFNAMSIZ) && (((struct sockaddr *)p)->sa_family == AF_LINK)) { | 95 | index = sd->sdl_index; |
89 | index = ((struct sockaddr_dl *)p)->sdl_index; | 96 | goto ret; |
90 | goto ret; | 97 | } |
91 | }; | ||
92 | 98 | ||
93 | if (len < SA_LEN((struct sockaddr *)p)) | 99 | if (len < sa->sa_len) |
94 | goto ret; | 100 | goto ret; |
95 | len -= SA_LEN((struct sockaddr *)p); | 101 | len -= sa->sa_len; |
96 | p += SA_LEN((struct sockaddr *)p); | 102 | p += sa->sa_len; |
97 | }; | 103 | } |
98 | 104 | ||
99 | if (!strcmp(lastname, name)) | 105 | if (!strcmp(lastname, name)) |
100 | index = i; | 106 | index = i; |
101 | 107 | ||
102 | ret: | 108 | ret: |
103 | close(fd); | 109 | close(fd); |
104 | free(ifconf.ifc_buf); | 110 | if (ifconf.ifc_buf) |
105 | return index; | 111 | free(ifconf.ifc_buf); |
106 | }; | 112 | return index; |
113 | } | ||