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d7ce7006 | 1 | /*-\r |
2 | * Copyright (c) 1990, 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 | #include <LibConfig.h>\r | |
34 | \r | |
35 | #include <sys/cdefs.h>\r | |
36 | #include <string.h>\r | |
37 | #include <stdio.h>\r | |
38 | \r | |
39 | #if defined(LIBC_SCCS) && !defined(lint)\r | |
40 | static char sccsid[] = "@(#)strsep.c 8.1 (Berkeley) 6/4/93";\r | |
41 | #endif /* LIBC_SCCS and not lint */\r | |
42 | \r | |
43 | /*\r | |
44 | * Get next token from string *stringp, where tokens are possibly-empty\r | |
45 | * strings separated by characters from delim.\r | |
46 | *\r | |
47 | * Writes NULs into the string at *stringp to end tokens.\r | |
48 | * delim need not remain constant from call to call.\r | |
49 | * On return, *stringp points past the last NUL written (if there might\r | |
50 | * be further tokens), or is NULL (if there are definitely no more tokens).\r | |
51 | *\r | |
52 | * If *stringp is NULL, strsep returns NULL.\r | |
53 | */\r | |
54 | char *\r | |
55 | strsep(\r | |
56 | register char **stringp,\r | |
57 | register const char *delim\r | |
58 | )\r | |
59 | {\r | |
60 | register char *s;\r | |
61 | register const char *spanp;\r | |
62 | register int c, sc;\r | |
63 | char *tok;\r | |
64 | \r | |
65 | if ((s = *stringp) == NULL)\r | |
66 | return (NULL);\r | |
67 | for (tok = s;;) {\r | |
68 | c = *s++;\r | |
69 | spanp = delim;\r | |
70 | do {\r | |
71 | if ((sc = *spanp++) == c) {\r | |
72 | if (c == 0)\r | |
73 | s = NULL;\r | |
74 | else\r | |
75 | s[-1] = 0;\r | |
76 | *stringp = s;\r | |
77 | return (tok);\r | |
78 | }\r | |
79 | } while (sc != 0);\r | |
80 | }\r | |
81 | /* NOTREACHED */\r | |
82 | }\r |