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Commit | Line | Data |
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d7ce7006 | 1 | /*\r |
2 | * Copyright (c) 1983, 1993\r | |
3 | * The Regents of the University of California. All rights reserved.\r | |
4 | *\r | |
5 | * Redistribution and use in source and binary forms, with or without\r | |
6 | * modification, are permitted provided that the following conditions\r | |
7 | * are met:\r | |
8 | * 1. Redistributions of source code must retain the above copyright\r | |
9 | * notice, this list of conditions and the following disclaimer.\r | |
10 | * 2. Redistributions in binary form must reproduce the above copyright\r | |
11 | * notice, this list of conditions and the following disclaimer in the\r | |
12 | * documentation and/or other materials provided with the distribution.\r | |
13 | * 3. All advertising materials mentioning features or use of this software\r | |
14 | * must display the following acknowledgement:\r | |
15 | * This product includes software developed by the University of\r | |
16 | * California, Berkeley and its contributors.\r | |
17 | * 4. Neither the name of the University nor the names of its contributors\r | |
18 | * may be used to endorse or promote products derived from this software\r | |
19 | * without specific prior written permission.\r | |
20 | *\r | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND\r | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r | |
31 | * SUCH DAMAGE.\r | |
32 | */\r | |
33 | \r | |
34 | #if defined(LIBC_SCCS) && !defined(lint)\r | |
35 | static char sccsid[] = "@(#)getprotoent.c 8.1 (Berkeley) 6/4/93";\r | |
36 | #endif /* LIBC_SCCS and not lint */\r | |
37 | \r | |
38 | #include <sys/types.h>\r | |
39 | #include <sys/socket.h>\r | |
40 | #include <netdb.h>\r | |
41 | #include <stdio.h>\r | |
42 | #include <stdlib.h>\r | |
43 | #include <string.h>\r | |
44 | \r | |
45 | #define MAXALIASES 35\r | |
46 | \r | |
47 | static FILE *protof = NULL;\r | |
48 | static char line[BUFSIZ+1];\r | |
49 | static struct protoent proto;\r | |
50 | static char *proto_aliases[MAXALIASES];\r | |
51 | int _proto_stayopen;\r | |
52 | \r | |
53 | void\r | |
54 | setprotoent(int f)\r | |
55 | {\r | |
56 | if (protof == NULL)\r | |
57 | protof = fopen(_PATH_PROTOCOLS, "r" );\r | |
58 | else\r | |
59 | rewind(protof);\r | |
60 | _proto_stayopen |= f;\r | |
61 | }\r | |
62 | \r | |
63 | void\r | |
64 | endprotoent()\r | |
65 | {\r | |
66 | if (protof) {\r | |
67 | fclose(protof);\r | |
68 | protof = NULL;\r | |
69 | }\r | |
70 | _proto_stayopen = 0;\r | |
71 | }\r | |
72 | \r | |
73 | struct protoent *\r | |
74 | getprotoent()\r | |
75 | {\r | |
76 | char *p;\r | |
77 | register char *cp, **q;\r | |
78 | \r | |
79 | if (protof == NULL && (protof = fopen(_PATH_PROTOCOLS, "r" )) == NULL)\r | |
80 | return (NULL);\r | |
81 | again:\r | |
82 | if ((p = fgets(line, BUFSIZ, protof)) == NULL)\r | |
83 | return (NULL);\r | |
84 | if (*p == '#')\r | |
85 | goto again;\r | |
86 | cp = strpbrk(p, "#\n");\r | |
87 | if (cp == NULL)\r | |
88 | goto again;\r | |
89 | *cp = '\0';\r | |
90 | proto.p_name = p;\r | |
91 | cp = strpbrk(p, " \t");\r | |
92 | if (cp == NULL)\r | |
93 | goto again;\r | |
94 | *cp++ = '\0';\r | |
95 | while (*cp == ' ' || *cp == '\t')\r | |
96 | cp++;\r | |
97 | p = strpbrk(cp, " \t");\r | |
98 | if (p != NULL)\r | |
99 | *p++ = '\0';\r | |
100 | proto.p_proto = atoi(cp);\r | |
101 | q = proto.p_aliases = proto_aliases;\r | |
102 | if (p != NULL) {\r | |
103 | cp = p;\r | |
104 | while (cp && *cp) {\r | |
105 | if (*cp == ' ' || *cp == '\t') {\r | |
106 | cp++;\r | |
107 | continue;\r | |
108 | }\r | |
109 | if (q < &proto_aliases[MAXALIASES - 1])\r | |
110 | *q++ = cp;\r | |
111 | cp = strpbrk(cp, " \t");\r | |
112 | if (cp != NULL)\r | |
113 | *cp++ = '\0';\r | |
114 | }\r | |
115 | }\r | |
116 | *q = NULL;\r | |
117 | return (&proto);\r | |
118 | }\r |