1 /* *********************************************************************
2 * Broadcom Common Firmware Environment (CFE)
4 * String routines File: lib_string.c
6 * Some standard routines for messing with strings.
8 * Author: Mitch Lichtenberg (mpl@broadcom.com)
10 *********************************************************************
12 * Copyright 2000,2001,2002,2003
13 * Broadcom Corporation. All rights reserved.
15 * This software is furnished under license and may be used and
16 * copied only in accordance with the following terms and
17 * conditions. Subject to these conditions, you may download,
18 * copy, install, use, modify and distribute modified or unmodified
19 * copies of this software in source and/or binary form. No title
20 * or ownership is transferred hereby.
22 * 1) Any source code used, modified or distributed must reproduce
23 * and retain this copyright notice and list of conditions
24 * as they appear in the source file.
26 * 2) No right is granted to use any trade name, trademark, or
27 * logo of Broadcom Corporation. The "Broadcom Corporation"
28 * name may not be used to endorse or promote products derived
29 * from this software without the prior written permission of
30 * Broadcom Corporation.
32 * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR
33 * IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED
34 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
35 * PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT
36 * SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN
37 * PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR DIRECT, INDIRECT,
38 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
39 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
40 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
41 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
42 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
43 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE), EVEN IF ADVISED OF
44 * THE POSSIBILITY OF SUCH DAMAGE.
45 ********************************************************************* */
50 #include "lib_types.h"
51 #define _LIB_NO_MACROS_
52 #include "lib_string.h"
54 char *lib_strcpy(char *dest
,const char *src
)
58 while (*src
) *ptr
++ = *src
++;
64 char *lib_strncpy(char *dest
,const char *src
,size_t cnt
)
68 while (*src
&& (cnt
> 0)) {
72 if (cnt
> 0) *ptr
= '\0';
78 size_t lib_xstrncpy(char *dest
,const char *src
,size_t cnt
)
83 while (*src
&& (cnt
> 1)) {
93 size_t lib_strlen(const char *str
)
106 int lib_strcmp(const char *dest
,const char *src
)
108 while (*src
&& *dest
) {
109 if (*dest
< *src
) return -1;
110 if (*dest
> *src
) return 1;
115 if (*dest
&& !*src
) return 1;
116 if (!*dest
&& *src
) return -1;
120 int lib_strncmp(const char *dest
, const char *src
, size_t cnt
)
122 while (*src
&& *dest
&& cnt
) {
123 if (*dest
< *src
) return -1;
124 if (*dest
> *src
) return 1;
131 if (*dest
&& !*src
) return 1;
132 if (!*dest
&& *src
) return -1;
136 int lib_strcmpi(const char *dest
,const char *src
)
140 while (*src
&& *dest
) {
141 dc
= lib_toupper(*dest
);
142 sc
= lib_toupper(*src
);
143 if (dc
< sc
) return -1;
144 if (dc
> sc
) return 1;
149 if (*dest
&& !*src
) return 1;
150 if (!*dest
&& *src
) return -1;
155 char *lib_strchr(const char *dest
,int c
)
158 if (*dest
== c
) return (char *) dest
;
164 char *lib_strnchr(const char *dest
,int c
,size_t cnt
)
166 while (*dest
&& (cnt
> 0)) {
167 if (*dest
== c
) return (char *) dest
;
174 char *lib_strrchr(const char *dest
,int c
)
179 if (*dest
== c
) ret
= (char *) dest
;
187 int lib_memcmp(const void *dest
,const void *src
,size_t cnt
)
189 const unsigned char *d
;
190 const unsigned char *s
;
192 d
= (const unsigned char *) dest
;
193 s
= (const unsigned char *) src
;
196 if (*d
< *s
) return -1;
197 if (*d
> *s
) return 1;
204 void *lib_memcpy(void *dest
,const void *src
,size_t cnt
)
207 const unsigned char *s
;
210 d
= (unsigned char *) dest
+ (cnt
- 1);
211 s
= (const unsigned char *) src
+ (cnt
- 1);
218 d
= (unsigned char *) dest
;
219 s
= (const unsigned char *) src
;
229 void *lib_memset(void *dest
,int c
,size_t cnt
)
236 *d
++ = (unsigned char) c
;
244 /* gcc may generate calls to memcmp, memset, and memcpy */
245 int memcmp(const void *dest
,const void *src
,size_t cnt
) __attribute__((alias("lib_memcmp")));
246 void *memcpy(void *dest
,const void *src
,size_t cnt
) __attribute__((alias("lib_memcpy")));
247 void *memset(void *dest
,int c
,size_t cnt
) __attribute__((alias("lib_memset")));
250 char lib_toupper(char c
)
252 if ((c
>= 'a') && (c
<= 'z')) c
-= 32;
256 void lib_strupr(char *str
)
259 *str
= lib_toupper(*str
);
264 char *lib_strcat(char *dest
,const char *src
)
269 while (*src
) *ptr
++ = *src
++;
275 #define isspace(x) (((x) == ' ') || ((x) == '\t'))
277 char *lib_gettoken(char **ptr
)
282 /* skip white space */
284 while (*p
&& isspace(*p
)) p
++;
287 /* check for end of string */
294 /* skip non-whitespace */
297 if (isspace(*p
)) break;
299 /* do quoted strings */
304 while (*p
&& (*p
!= '"')) p
++;
305 if (*p
== '"') *p
= '\0';
321 int lib_atoi(const char *dest
)
326 if ((*dest
== '0') && (*(dest
+1) == 'x')) {
327 return lib_xtoi(dest
+2);
331 if ((*dest
>= '0') && (*dest
<= '9')) {
345 uint64_t lib_xtoq(const char *dest
)
350 if ((*dest
== '0') && (*(dest
+1) == 'x')) dest
+= 2;
353 if ((*dest
>= '0') && (*dest
<= '9')) {
356 else if ((*dest
>= 'A') && (*dest
<= 'F')) {
357 digit
= 10 + *dest
- 'A';
359 else if ((*dest
>= 'a') && (*dest
<= 'f')) {
360 digit
= 10 + *dest
- 'a';
373 int lib_xtoi(const char *dest
)
378 if ((*dest
== '0') && (*(dest
+1) == 'x')) dest
+= 2;
381 if ((*dest
>= '0') && (*dest
<= '9')) {
384 else if ((*dest
>= 'A') && (*dest
<= 'F')) {
385 digit
= 10 + *dest
- 'A';
387 else if ((*dest
>= 'a') && (*dest
<= 'f')) {
388 digit
= 10 + *dest
- 'a';