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annotate src/xs_support.c @ 412:7f694e5a1493

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Updated GNU GPL (new FSF address) and some cleanups.
author Matti Hamalainen <ccr@tnsp.org>
date Mon, 14 Aug 2006 00:49:02 +0000
parents 933b9ea5923e
children d2e6682d3ef8
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1 /*
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2 XMMS-SID - SIDPlay input plugin for X MultiMedia System (XMMS)
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3
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4 Miscellaneous support functions
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5
324
dd201740a720 Changed copyright text.
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6 Programmed and designed by Matti 'ccr' Hamalainen <ccr@tnsp.org>
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7 (C) Copyright 1999-2005 Tecnic Software productions (TNSP)
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8
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9 This program is free software; you can redistribute it and/or modify
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10 it under the terms of the GNU General Public License as published by
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11 the Free Software Foundation; either version 2 of the License, or
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12 (at your option) any later version.
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13
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14 This program is distributed in the hope that it will be useful,
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15 but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 GNU General Public License for more details.
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18
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19 You should have received a copy of the GNU General Public License along
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20 with this program; if not, write to the Free Software Foundation, Inc.,
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21 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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22 */
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23 #include "xmms-sid.h"
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24 #include "xs_support.h"
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25 #include <ctype.h>
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28 /* Bigendian file reading functions
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29 */
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30 guint16 xs_rd_be16(FILE *f)
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31 {
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32 return (((guint16) fgetc(f)) << 8) | ((guint16) fgetc(f));
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33 }
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36 guint32 xs_rd_be32(FILE *f)
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37 {
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38 return (((guint32) fgetc(f)) << 24) |
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39 (((guint32) fgetc(f)) << 16) | (((guint32) fgetc(f)) << 8) | ((guint32) fgetc(f));
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40 }
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42
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43 size_t xs_rd_str(FILE *f, gchar *s, size_t l)
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44 {
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45 return fread(s, sizeof(gchar), l, f);
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46 }
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48
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49 /* Copy a string
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50 */
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51 gchar *xs_strncpy(gchar *pDest, gchar *pSource, size_t n)
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52 {
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53 gchar *s, *d;
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54 size_t i;
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55
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56 /* Check the string pointers */
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57 if (!pSource || !pDest)
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58 return pDest;
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59
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60 /* Copy to the destination */
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61 i = n;
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62 s = pSource;
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63 d = pDest;
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64 while (*s && (i > 0)) {
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65 *(d++) = *(s++);
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66 i--;
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67 }
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69 /* Fill rest of space with zeros */
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70 while (i > 0) {
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71 *(d++) = 0;
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72 i--;
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73 }
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75 /* Ensure that last is always zero */
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76 pDest[n - 1] = 0;
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77
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78 return pDest;
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79 }
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81
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82 /* Copy a given string over in *ppResult.
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83 */
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84 gint xs_pstrcpy(gchar **ppResult, const gchar *pStr)
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85 {
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86 /* Check the string pointers */
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87 if (!ppResult || !pStr)
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88 return -1;
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89
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90 /* Allocate memory for destination */
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91 if (*ppResult)
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92 g_free(*ppResult);
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93 *ppResult = (gchar *) g_malloc(strlen(pStr) + 1);
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94 if (!*ppResult)
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95 return -2;
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96
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97 /* Copy to the destination */
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98 strcpy(*ppResult, pStr);
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99
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100 return 0;
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101 }
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102
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103
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104 /* Concatenates a given string into string pointed by *ppResult.
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105 */
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106 gint xs_pstrcat(gchar **ppResult, const gchar *pStr)
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107 {
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108 /* Check the string pointers */
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109 if (!ppResult || !pStr)
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110 return -1;
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111
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112 if (*ppResult != NULL) {
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113 *ppResult = (gchar *) g_realloc(*ppResult, strlen(*ppResult) + strlen(pStr) + 1);
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114 if (*ppResult == NULL)
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115 return -1;
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116 strcat(*ppResult, pStr);
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117 } else {
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118 *ppResult = (gchar *) g_malloc(strlen(pStr) + 1);
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119 if (*ppResult == NULL)
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120 return -1;
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121 strcpy(*ppResult, pStr);
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122 }
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123
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124 return 0;
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125 }
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126
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127
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128 /* Concatenate a given string up to given dest size or \n.
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129 * If size max is reached, change the end to "..."
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130 */
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131 void xs_pnstrcat(gchar *pDest, size_t iSize, gchar *pStr)
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132 {
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133 size_t i, n;
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134 gchar *s, *d;
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135
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136 d = pDest;
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137 i = 0;
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138 while (*d && (i < iSize)) {
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139 i++;
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140 d++;
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141 }
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142
359
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143 s = pStr;
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144 while (*s && (*s != '\n') && (i < iSize)) {
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145 *d = *s;
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146 d++;
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147 s++;
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148 i++;
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149 }
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150
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151 *d = 0;
239
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152
359
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153 if (i >= iSize) {
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154 i--;
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155 d--;
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156 n = 3;
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157 while ((i > 0) && (n > 0)) {
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158 *d = '.';
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159 d--;
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160 i--;
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161 n--;
239
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162 }
359
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163 }
239
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164 }
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165
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166
206
8b896d461fdb Trivial fixes and added strncpy replacement.
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167 /* Locate character in string
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168 */
398
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169 gchar *xs_strrchr(gchar *pcStr, gchar ch)
56
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170 {
359
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171 gchar *lastPos = NULL;
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172
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173 while (*pcStr) {
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174 if (*pcStr == ch)
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175 lastPos = pcStr;
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176 pcStr++;
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177 }
56
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178
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179 return lastPos;
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180 }
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181
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182
398
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183 void xs_findnext(gchar *pcStr, guint *piPos)
4
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184 {
359
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185 while (pcStr[*piPos] && isspace(pcStr[*piPos]))
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186 (*piPos)++;
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187 }
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188
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189
398
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190 void xs_findeol(gchar *pcStr, guint *piPos)
4
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191 {
359
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192 while (pcStr[*piPos] && (pcStr[*piPos] != '\n') && (pcStr[*piPos] != '\r'))
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193 (*piPos)++;
4
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194 }
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195
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196
398
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197 void xs_findnum(gchar *pcStr, guint *piPos)
109
578b71b62eeb Fileinfo now basically working, STIL COMMENT-fields are not yet parsed or shown.
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198 {
359
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199 while (pcStr[*piPos] && isdigit(pcStr[*piPos]))
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200 (*piPos)++;
109
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201 }
214
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202
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203
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204 #ifndef HAVE_MEMSET
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205 void *xs_memset(void *p, int c, size_t n)
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206 {
359
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207 gchar *dp;
214
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208
359
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209 dp = (gchar *) p;
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210 while (n--) {
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211 *dp = (gchar) c;
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212 n--;
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213 }
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214
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215 return p;
214
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216 }
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217 #endif