1 /*
2 * Copyright (c) 2018, 2020 The Linux Foundation. All rights reserved.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for
5 * any purpose with or without fee is hereby granted, provided that the
6 * above copyright notice and this permission notice appear in all
7 * copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
10 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
11 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
12 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
13 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
14 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
15 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
16 * PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include "qdf_mem.h"
20 #include "qdf_module.h"
21 #include "qdf_str.h"
22 #include "qdf_trace.h"
23
qdf_str_dup(char ** dest,const char * src)24 QDF_STATUS qdf_str_dup(char **dest, const char *src)
25 {
26 qdf_size_t size;
27 char *dup;
28
29 *dest = NULL;
30
31 QDF_BUG(src);
32 if (!src)
33 return QDF_STATUS_E_INVAL;
34
35 /* size = length + null-terminator */
36 size = qdf_str_len(src) + 1;
37 dup = qdf_mem_malloc(size);
38 if (!dup)
39 return QDF_STATUS_E_NOMEM;
40
41 qdf_mem_copy(dup, src, size);
42 *dest = dup;
43
44 return QDF_STATUS_SUCCESS;
45 }
46 qdf_export_symbol(qdf_str_dup);
47
qdf_str_right_trim(char * str)48 void qdf_str_right_trim(char *str)
49 {
50 char *end = str + qdf_str_len(str) - 1;
51
52 while (end >= str && qdf_is_space(*end))
53 end--;
54
55 end[1] = '\0';
56 }
57 qdf_export_symbol(qdf_str_right_trim);
58
59 uint32_t
qdf_str_copy_all_before_char(char * str,uint32_t str_len,char * dst,uint32_t dst_len,char c)60 qdf_str_copy_all_before_char(char *str, uint32_t str_len,
61 char *dst, uint32_t dst_len, char c)
62 {
63 uint32_t len = 0;
64
65 if (!str)
66 return len;
67
68 while ((len < str_len) && (len < dst_len) &&
69 (*str != '\0') && (*str != c)) {
70 *dst++ = *str++;
71 len++;
72 }
73
74 return len;
75 }
76 qdf_export_symbol(qdf_str_copy_all_before_char);
77