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view src/libident/support.c @ 221:8742d2cee364
added a note to the long vs. int question in md5.h
Solar Designer explained to me in privat conversation that the
int had performed much better on some systems and that 16bit
ints are very rare. Still I like using the long.
author | meillo@marmaro.de |
---|---|
date | Fri, 23 Jul 2010 10:53:04 +0200 |
parents | 08114f7dcc23 |
children |
line source
1 /*
2 ** support.c
3 **
4 ** Author: Pr Emanuelsson <pell@lysator.liu.se>
5 ** Hacked by: Peter Eriksson <pen@lysator.liu.se>
6 */
7 #include <stdio.h>
8 #include <ctype.h>
10 #ifdef HAVE_ANSIHEADERS
11 # include <stdlib.h>
12 # include <string.h>
13 #else
14 # define strchr(str, c) index(str, c)
15 #endif
17 #define IN_LIBIDENT_SRC
18 #include "ident.h"
21 char*
22 id_strdup __P1(char *, str)
23 {
24 char *cp;
26 cp = (char *) malloc(strlen(str) + 1);
27 if (cp == NULL) {
28 #ifdef DEBUG
29 perror("libident: malloc");
30 #endif
31 return NULL;
32 }
34 strcpy(cp, str);
36 return cp;
37 }
40 char*
41 id_strtok __P3(char *, cp, char *, cs, char *, dc)
42 {
43 static char *bp = 0;
45 if (cp)
46 bp = cp;
48 /*
49 ** No delimitor cs - return whole buffer and point at end
50 */
51 if (!cs) {
52 while (*bp)
53 bp++;
54 return cs;
55 }
57 /*
58 ** Skip leading spaces
59 */
60 while (isspace(*bp))
61 bp++;
63 /*
64 ** No token found?
65 */
66 if (!*bp)
67 return 0;
69 cp = bp;
70 while (*bp && !strchr(cs, *bp))
71 bp++;
73 /*
74 ** Remove trailing spaces
75 */
76 *dc = *bp;
77 for (dc = bp - 1; dc > cp && isspace(*dc); dc--);
78 *++dc = '\0';
80 bp++;
82 return cp;
83 }