1 /*
2 * "$Id: flstring.c 4288 2005-04-16 00:13:17Z mike $"
3 *
4 * BSD string functions for the Fast Light Tool Kit (FLTK).
5 *
6 * Copyright 1998-2005 by Bill Spitzak and others.
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
21 * USA.
22 *
23 * Please report all bugs and problems on the following page:
24 *
25 * http://www.fltk.org/str.php
26 */
27
28 #include "flstring.h"
29
30
31 /*
32 * 'fl_strlcat()' - Safely concatenate two strings.
33 */
34
35 size_t /* O - Length of string */
fl_strlcat(char * dst,const char * src,size_t size)36 fl_strlcat(char *dst, /* O - Destination string */
37 const char *src, /* I - Source string */
38 size_t size) { /* I - Size of destination string buffer */
39 size_t srclen; /* Length of source string */
40 size_t dstlen; /* Length of destination string */
41
42
43 /*
44 * Figure out how much room is left...
45 */
46
47 dstlen = strlen(dst);
48 size -= dstlen + 1;
49
50 if (!size) return (dstlen); /* No room, return immediately... */
51
52 /*
53 * Figure out how much room is needed...
54 */
55
56 srclen = strlen(src);
57
58 /*
59 * Copy the appropriate amount...
60 */
61
62 if (srclen > size) srclen = size;
63
64 memcpy(dst + dstlen, src, srclen);
65 dst[dstlen + srclen] = '\0';
66
67 return (dstlen + srclen);
68 }
69
70
71 /*
72 * 'fl_strlcpy()' - Safely copy two strings.
73 */
74
75 size_t /* O - Length of string */
fl_strlcpy(char * dst,const char * src,size_t size)76 fl_strlcpy(char *dst, /* O - Destination string */
77 const char *src, /* I - Source string */
78 size_t size) { /* I - Size of destination string buffer */
79 size_t srclen; /* Length of source string */
80
81
82 /*
83 * Figure out how much room is needed...
84 */
85
86 size --;
87
88 srclen = strlen(src);
89
90 /*
91 * Copy the appropriate amount...
92 */
93
94 if (srclen > size) srclen = size;
95
96 memcpy(dst, src, srclen);
97 dst[srclen] = '\0';
98
99 return (srclen);
100 }
101
102
103 /*
104 * End of "$Id: flstring.c 4288 2005-04-16 00:13:17Z mike $".
105 */
106