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annotate common/strhelp.c @ 347:dde533ba4fcc

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Added table item delegate for certificates.
author Raimund Renkert <rrenkert@intevation.de>
date Thu, 10 Apr 2014 14:13:34 +0200
parents 4077eff1dd39
children 17e1c8f37d72
rev   line source
319
4077eff1dd39 Added terminateing version of asprintf.
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diff changeset
1 /* Needed to get asprintf */
4077eff1dd39 Added terminateing version of asprintf.
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2 #define _GNU_SOURCE 1
4077eff1dd39 Added terminateing version of asprintf.
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3
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5f830969e4a1 Added missing include.
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4 #include <ctype.h>
319
4077eff1dd39 Added terminateing version of asprintf.
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5 #include <stdarg.h>
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9104b1b2e4da Added string comparison functions.
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6 #include <stdbool.h>
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <string.h>
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10 #include <assert.h>
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11
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bf4bfd8843bd Add memory allocating base64 decode function
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12 #include <polarssl/base64.h>
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13
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c596568fa45b Add utf16 conversion functions for Windows.
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14 #ifdef WIN32
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15 #include <windows.h>
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16 #endif
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17
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18 /* Remarks regarding the "Flawfinder: ignore" comments in this file:
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19 *
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20 * - strlen:
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21 *
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22 * It's true that strlen might crash if input is not null
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23 * terminated. But by design there is not safe way to get the
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24 * length of an string in C, and defining an additional length
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25 * parameter for string parameter will only transfere the problem to
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26 * the caller.
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27 */
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28
59
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29 static void
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30 out_of_core(void)
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31 {
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32 fputs("\nfatal: out of memory\n", stderr);
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33 exit(2);
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34 }
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35 void *
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36 xmalloc( size_t n )
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37 {
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38 void *p = malloc( n );
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39 if( !p )
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40 out_of_core();
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41 return p;
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42 }
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43
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44 void *
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45 xrealloc( void *a, size_t n )
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46 {
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47 void *p = realloc( a, n );
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48 if( !p )
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49 out_of_core();
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50 return p;
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51 }
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52
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53 char *
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54 xstrndup( const char *string, const size_t len )
59
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55 {
60
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56 char *p = xmalloc( len + 1 );
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57 memcpy( p, string, len );
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58 p[len] = '\0';
59
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59 return p;
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60 }
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61
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62 unsigned int
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63 strv_length (char **str_array)
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64 {
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65 unsigned int i = 0;
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66
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67 if (!str_array)
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68 return 0;
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69
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70 while (str_array[i])
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71 ++i;
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72
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73 return i;
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74 }
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75
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76 void strv_append (char ***pArray, const char *string, const size_t len)
59
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77 {
60
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78 unsigned int old_len = 0;
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79
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80 if (!*pArray) {
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81 *pArray = xmalloc(2 * sizeof(char*));
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82 (*pArray)[0] = xstrndup(string, len);
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83 (*pArray)[1] = NULL;
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84 return;
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85 }
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86 old_len = strv_length(*pArray);
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87 *pArray = xrealloc(*pArray, sizeof(char**) * (old_len + 2));
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88
60
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89 (*pArray)[old_len] = xstrndup(string, len);
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90 (*pArray)[old_len + 1] = NULL;
59
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91 }
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92
91
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93 void
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94 str_append_str(char **pDst, size_t *dst_len, const char *appendage, const size_t len)
59
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95 {
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96 if (!appendage)
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97 return;
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98
91
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99 if (!(*pDst)) {
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100 *pDst = xstrndup(appendage, len);
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101 *dst_len = len;
60
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102 } else {
91
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103 size_t new_size = (*dst_len) + len + 1;
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104 char *p_old = *pDst;
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105 *pDst = xmalloc(new_size);
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106 strncpy(*pDst, p_old, *dst_len);
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107 strncpy(*pDst + *dst_len, appendage, len);
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108 *dst_len = new_size - 1;
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109 (*pDst)[*dst_len] = '\0';
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110 free (p_old);
60
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111 }
59
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112 }
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113
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114 void
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115 strv_free (char **str_array)
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116 {
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117 if (str_array)
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118 {
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119 int i;
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120
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121 for (i = 0; str_array[i] != NULL; i++)
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122 free (str_array[i]);
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123
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124 free (str_array);
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125 }
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126 }
131
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127
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128 bool
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129 str_equal (char *s1, char *s2)
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130 {
143
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131 size_t l1 = strlen(s1); /* Flawfinder: ignore */
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132 size_t l2 = strlen(s2); /* Flawfinder: ignore */
131
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133 if ((l1 == l2) &&
136
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134 (strcmp(s1, s2) == 0))
131
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135 return true;
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136 else
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137 return false;
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138 }
9104b1b2e4da Added string comparison functions.
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parents: 116
diff changeset
139
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
140 bool
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
141 str_starts_with (char *s1, char *s2)
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
142 {
143
b026e6d2a161 Make flawfinder (a bit more) happy.
Sascha Wilde <wilde@intevation.de>
parents: 136
diff changeset
143 size_t l2 = strlen(s2); /* Flawfinder: ignore */
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parents: 136
diff changeset
144 if (strncmp(s1, s2, l2) == 0)
131
9104b1b2e4da Added string comparison functions.
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parents: 116
diff changeset
145 return true;
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
146 else
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
147 return false;
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
148 }
133
c719d3fdbc15 Added functrion to trim white space from string.
Sascha Wilde <wilde@intevation.de>
parents: 131
diff changeset
149
c719d3fdbc15 Added functrion to trim white space from string.
Sascha Wilde <wilde@intevation.de>
parents: 131
diff changeset
150 void
c719d3fdbc15 Added functrion to trim white space from string.
Sascha Wilde <wilde@intevation.de>
parents: 131
diff changeset
151 str_trim (char **s)
c719d3fdbc15 Added functrion to trim white space from string.
Sascha Wilde <wilde@intevation.de>
parents: 131
diff changeset
152 {
c719d3fdbc15 Added functrion to trim white space from string.
Sascha Wilde <wilde@intevation.de>
parents: 131
diff changeset
153 size_t i;
135
3fb6ddd6b70d str_trim: do nothing if *s is NULL.
Sascha Wilde <wilde@intevation.de>
parents: 134
diff changeset
154 if (*s != NULL)
3fb6ddd6b70d str_trim: do nothing if *s is NULL.
Sascha Wilde <wilde@intevation.de>
parents: 134
diff changeset
155 {
3fb6ddd6b70d str_trim: do nothing if *s is NULL.
Sascha Wilde <wilde@intevation.de>
parents: 134
diff changeset
156 while (isspace(**s))
3fb6ddd6b70d str_trim: do nothing if *s is NULL.
Sascha Wilde <wilde@intevation.de>
parents: 134
diff changeset
157 (*s)++;
143
b026e6d2a161 Make flawfinder (a bit more) happy.
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parents: 136
diff changeset
158 i = strlen(*s); /* Flawfinder: ignore */
135
3fb6ddd6b70d str_trim: do nothing if *s is NULL.
Sascha Wilde <wilde@intevation.de>
parents: 134
diff changeset
159 while (isspace((*s)[--i]))
3fb6ddd6b70d str_trim: do nothing if *s is NULL.
Sascha Wilde <wilde@intevation.de>
parents: 134
diff changeset
160 (*s)[i] = '\0';
3fb6ddd6b70d str_trim: do nothing if *s is NULL.
Sascha Wilde <wilde@intevation.de>
parents: 134
diff changeset
161 }
133
c719d3fdbc15 Added functrion to trim white space from string.
Sascha Wilde <wilde@intevation.de>
parents: 131
diff changeset
162 }
160
bf4bfd8843bd Add memory allocating base64 decode function
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parents: 143
diff changeset
163
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 143
diff changeset
164 int str_base64_decode(char **dst, size_t *dst_size, char *src,
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parents: 143
diff changeset
165 size_t src_size)
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parents: 143
diff changeset
166 {
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parents: 143
diff changeset
167 int ret = -1;
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parents: 143
diff changeset
168
bf4bfd8843bd Add memory allocating base64 decode function
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parents: 143
diff changeset
169 if (!dst || *dst) {
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parents: 143
diff changeset
170 return -1;
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parents: 143
diff changeset
171 }
bf4bfd8843bd Add memory allocating base64 decode function
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parents: 143
diff changeset
172
bf4bfd8843bd Add memory allocating base64 decode function
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parents: 143
diff changeset
173 /* Check the needed size for the buffer */
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parents: 143
diff changeset
174 ret = base64_decode(NULL, dst_size,
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parents: 143
diff changeset
175 (unsigned char *)src, src_size);
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parents: 143
diff changeset
176
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parents: 143
diff changeset
177 if (ret != 0 && ret != POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL) {
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parents: 143
diff changeset
178 return ret;
bf4bfd8843bd Add memory allocating base64 decode function
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parents: 143
diff changeset
179 }
bf4bfd8843bd Add memory allocating base64 decode function
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parents: 143
diff changeset
180
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 143
diff changeset
181 *dst = xmalloc(*dst_size);
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parents: 143
diff changeset
182 memset (*dst, 0, *dst_size);
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parents: 143
diff changeset
183
bf4bfd8843bd Add memory allocating base64 decode function
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parents: 143
diff changeset
184 ret = base64_decode((unsigned char *)*dst, dst_size,
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parents: 143
diff changeset
185 (unsigned char *)src, src_size);
183
4def8b263dd3 Fix str_base64_decode
Andre Heinecke <aheinecke@intevation.de>
parents: 160
diff changeset
186 if (ret) {
160
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Andre Heinecke <aheinecke@intevation.de>
parents: 143
diff changeset
187 free (*dst);
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parents: 143
diff changeset
188 *dst = NULL;
183
4def8b263dd3 Fix str_base64_decode
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parents: 160
diff changeset
189 *dst_size = 0;
160
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parents: 143
diff changeset
190 }
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 143
diff changeset
191 return ret;
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Andre Heinecke <aheinecke@intevation.de>
parents: 143
diff changeset
192 }
251
c596568fa45b Add utf16 conversion functions for Windows.
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parents: 183
diff changeset
193
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
194 void
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Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
195 xfree (void *p)
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
196 {
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
197 if (p)
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Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
198 free (p);
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Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
199 }
c596568fa45b Add utf16 conversion functions for Windows.
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parents: 183
diff changeset
200
319
4077eff1dd39 Added terminateing version of asprintf.
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parents: 288
diff changeset
201 int
4077eff1dd39 Added terminateing version of asprintf.
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parents: 288
diff changeset
202 xasprintf (char **strp, const char *fmt, ...)
4077eff1dd39 Added terminateing version of asprintf.
Sascha Wilde <wilde@intevation.de>
parents: 288
diff changeset
203 {
4077eff1dd39 Added terminateing version of asprintf.
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parents: 288
diff changeset
204 int ret;
4077eff1dd39 Added terminateing version of asprintf.
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parents: 288
diff changeset
205 va_list ap;
4077eff1dd39 Added terminateing version of asprintf.
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parents: 288
diff changeset
206 va_start(ap, fmt);
4077eff1dd39 Added terminateing version of asprintf.
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parents: 288
diff changeset
207 ret = vasprintf(strp, fmt, ap);
4077eff1dd39 Added terminateing version of asprintf.
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parents: 288
diff changeset
208 va_end(ap);
4077eff1dd39 Added terminateing version of asprintf.
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parents: 288
diff changeset
209
4077eff1dd39 Added terminateing version of asprintf.
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parents: 288
diff changeset
210 if (ret == -1)
4077eff1dd39 Added terminateing version of asprintf.
Sascha Wilde <wilde@intevation.de>
parents: 288
diff changeset
211 out_of_core();
4077eff1dd39 Added terminateing version of asprintf.
Sascha Wilde <wilde@intevation.de>
parents: 288
diff changeset
212
4077eff1dd39 Added terminateing version of asprintf.
Sascha Wilde <wilde@intevation.de>
parents: 288
diff changeset
213 return ret;
4077eff1dd39 Added terminateing version of asprintf.
Sascha Wilde <wilde@intevation.de>
parents: 288
diff changeset
214 }
4077eff1dd39 Added terminateing version of asprintf.
Sascha Wilde <wilde@intevation.de>
parents: 288
diff changeset
215
251
c596568fa45b Add utf16 conversion functions for Windows.
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parents: 183
diff changeset
216 #ifdef WIN32
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Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
217 /* Adapted from GPGOL rev. e512053 */
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
218 char *
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
219 wchar_to_utf8 (const wchar_t *string, size_t len)
c596568fa45b Add utf16 conversion functions for Windows.
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parents: 183
diff changeset
220 {
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
221 int n, ilen;
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
222 char *result;
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
223
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
224 ilen = (int) len;
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
225 if (ilen < 0)
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
226 return NULL;
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
227
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
228 /* Note, that CP_UTF8 is not defined in Windows versions earlier
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
229 than NT.*/
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
230 n = WideCharToMultiByte (CP_UTF8, 0, string, ilen, NULL, 0, NULL, NULL);
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
231 if (n < 0)
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
232 return NULL;
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
233
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
234 result = xmalloc ((size_t)n+1);
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
235 n = WideCharToMultiByte (CP_UTF8, 0, string, ilen, result, n, NULL, NULL);
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
236 if (n < 0)
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
237 {
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
238 xfree (result);
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
239 return NULL;
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
240 }
288
c4a989a0d6cf Ensure that the utf8 string is always 0 terminated.
Andre Heinecke <aheinecke@intevation.de>
parents: 251
diff changeset
241 result[n] = 0;
251
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
242 return result;
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
243 }
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
244
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
245 /* Adapted from GPGOL rev. e512053 */
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
246 wchar_t *
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
247 utf8_to_wchar (const char *string, size_t len)
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
248 {
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
249 int n, ilen;
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
250 wchar_t *result;
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
251
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
252 ilen = (int) len;
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
253 if (ilen < 0)
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
254 return NULL;
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
255
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
256 n = MultiByteToWideChar (CP_UTF8, 0, string, ilen, NULL, 0);
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
257 if (n < 0 || n + 1 < 0)
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
258 return NULL;
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
259
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
260 result = xmalloc ((size_t)(n+1) * sizeof *result);
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
261 n = MultiByteToWideChar (CP_UTF8, 0, string, ilen, result, n);
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
262 if (n < 0)
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
263 {
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
264 xfree (result);
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
265 return NULL;
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
266 }
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
267 result[n] = 0;
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
268 return result;
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
269 }
c596568fa45b Add utf16 conversion functions for Windows.
Andre Heinecke <aheinecke@intevation.de>
parents: 183
diff changeset
270 #endif
http://wald.intevation.org/projects/trustbridge/