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1 /* plmn_decoder.cpp : Defines the entry point for the console application. */
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2
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3 #include <assert.h>
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4 #include <stdio.h>
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5 #include <stddef.h>
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6 #include <stdlib.h>
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7 #include <string.h>
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8
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9 #ifdef TI_PS_OP_OPN_TAB_ROMBASED
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10 #ifndef CMH_PLMN_DECODER_C
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11 #define CMH_PLMN_DECODER_C
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12 #endif
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13
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14 #include "aci_all.h"
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15
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16 /*==== INCLUDES ===================================================*/
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17
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18 #include "aci_cmh.h"
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19 #include "ati_cmd.h"
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20 #include "aci_cmd.h"
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21 #include "aci_mem.h"
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22 #include "pcm.h"
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23
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24 #ifdef TI_PS_OP_OPN_TAB_ROMBASED
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25 #include "rom_tables.h"
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26 #endif /* TI_PS_OP_OPN_TAB_ROMBASED */
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27
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28
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29 #ifdef FAX_AND_DATA
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30 #include "aci_fd.h"
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31 #endif /* of #ifdef FAX_AND_DATA */
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32
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33 #include "aci.h"
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34 #include "psa.h"
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35 #include "psa_mm.h"
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36 #include "psa_sim.h"
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37 #include "psa_util.h"
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38 #include "cmh.h"
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39
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40
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41
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42 #define PLMN_LONGNAME_LOOKUP 0xff
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43
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44 EXTERN void cmhSIM_getMncMccFrmPLMNsel( const UBYTE* ntry,
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45 SHORT* mcc,
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46 SHORT* mnc );
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47
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48 /* NHK:
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49 * Once the tables plmn_compressed, plmn_dict_offset and plmn_dict go to ROM, their names below should match corresponding ROM addresses
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50 * KSR: Moved to g23m\condat\com\src\drivers\rom_tables.c
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51 */
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52
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53 /*
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54 +----------------------------------------------------------------------------+
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55 | PROJECT : GSM-PS (6147) MODULE : MM_MM |
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56 | STATE : code ROUTINE : cmhMM_CompLongLength |
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57 +----------------------------------------------------------------------------+
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58
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59 PURPOSE : This function gets the compressed length of the longName
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60 from a compressed PLMN entry.
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61
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62 */
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63 LOCAL USHORT cmhMM_CompLongLength (const UBYTE *plmn_comp_entry)
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64 {
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65 UBYTE length_byte;
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66
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67 length_byte = *(plmn_comp_entry + 3);
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68
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69 return ((length_byte >> 3) & 0x1f) + 1;
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70 }
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71
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72 /*
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73 +----------------------------------------------------------------------------+
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74 | PROJECT : GSM-PS (6147) MODULE : MM_MM |
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75 | STATE : code ROUTINE : cmhMM_CompShrtLength |
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76 +----------------------------------------------------------------------------+
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77
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78 PURPOSE : This function gets the compressed length of the shrtName
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79 from a compressed PLMN entry.
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80
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81 */
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82 LOCAL USHORT cmhMM_CompShrtLength (const UBYTE *plmn_comp_entry)
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83 {
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84 UBYTE length_byte;
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85
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86 length_byte = *(plmn_comp_entry + 3);
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87
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88 return ((length_byte ) & 0x07) + 1;
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89 }
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90
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91
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92 /*
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93 +----------------------------------------------------------------------------+
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94 | PROJECT : GSM-PS (6147) MODULE : MM_MM |
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95 | STATE : code ROUTINE : cmhMM_PlmnEntryLength |
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96 +----------------------------------------------------------------------------+
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97
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98 PURPOSE : This function gets the length of a compressed PLMN entry.
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99
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100 */
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101 GLOBAL USHORT cmhMM_PlmnEntryLength (const UBYTE *plmn_comp_entry)
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102 {
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103 return (4 + cmhMM_CompLongLength (plmn_comp_entry)
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104 + cmhMM_CompShrtLength (plmn_comp_entry));
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105 }
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106
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107
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108 /*
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109 +----------------------------------------------------------------------------+
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110 | PROJECT : GSM-PS (6147) MODULE : MM_MM |
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111 | STATE : code ROUTINE : cmhMM_Decompress |
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112 +----------------------------------------------------------------------------+
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113
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114 PURPOSE : This function decompresses a compressed string.
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115 If the decompressed string is the long PLMN name the longName
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116 parameter is NULL, when the decompressed string is the short
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117 PLMN name the longName parameter is the previously decompressed
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118 PLMN long name, as in some cases the short PLMN name consists of
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119 parts of the long PLMN name lookups within the decompressed long
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120 name will be done when advised to do so by the compressed byte
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121 string.
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122 On success the function returns with zero, on detection of an
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123 internal error a negative value is returned.
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124
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125 */
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126 LOCAL SHORT cmhMM_Decompress (char *decomp_string,
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127 const char *longName,
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128 const UBYTE *comp_string,
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129 USHORT comp_length)
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130 {
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131 USHORT offset;
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132 USHORT length;
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133
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134 while (comp_length > 0)
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135 {
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136 if (*comp_string < 128)
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137 {
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138 /* GSM default alphabet. Take character 1:1 */
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139 *decomp_string = *comp_string;
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140 decomp_string++;
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141 }
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142 else if (*comp_string EQ PLMN_LONGNAME_LOOKUP)
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143 {
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144 if ((longName EQ NULL) OR (comp_length <= 1))
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145 {
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146 TRACE_ERROR ("Cannot process longName lookup");
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147 return -1;
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148 }
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149
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150 /* Decoding short name. Lookup into long name */
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151
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152 /* Skip PLMN_LONGNAME_LOOKUP */
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153 comp_string++;
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154 comp_length--;
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155
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156 /* Get offset and length of substring in long name */
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157 offset = (*comp_string >> 3) & 0x1f;
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158 length = (*comp_string & 0x07) + 1;
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159 memcpy (decomp_string, longName + offset, length);
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160 decomp_string += length;
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161 }
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162 else
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163 {
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164 /* Dictionary lookup */
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165
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166 /* Get offset of dictionary entry */
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167 offset = *(ptr_plmn_dict_offset + (*comp_string - 128));
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168
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169 /* Get length of dictionary entry */
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170 length = *(ptr_plmn_dict_offset + (*comp_string - 128 + 1)) - offset;
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171 memcpy (decomp_string, ptr_plmn_dict + offset, length);
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172 decomp_string += length;
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173 }
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174 comp_string++;
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175 comp_length--;
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176 }
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177 decomp_string = '\0';
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178 return 0;
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179 }
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180
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181
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182 /*
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183 +----------------------------------------------------------------------------+
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184 | PROJECT : GSM-PS (6147) MODULE : MM_MM |
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185 | STATE : code ROUTINE : cmhMM_decodePlmn |
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186 +----------------------------------------------------------------------------+
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187
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188 PURPOSE : This function decodes a compressed PLMN entry into a decompressed
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189 T_OPER_ENTRY structure. On success this function returns with
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190 zero, if during decompression an internal error is detected the
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191 function returns with a negative value.
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192
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193 */
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194 GLOBAL SHORT cmhMM_decodePlmn (T_OPER_ENTRY *oper, const UBYTE *plmn_comp_entry)
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195 {
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196 SHORT mcc; /* Mobile Country Code */
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197 SHORT mnc; /* Mobile Network Code */
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198 USHORT comp_Length; /* Compressed string length */
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199 SHORT result; /* Decompression result */
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200 const UBYTE *comp_ptr; /* Compressed PLMNs pointer */
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201
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202 memset (oper, 0, sizeof (T_OPER_ENTRY));
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203
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204 cmhSIM_getMncMccFrmPLMNsel (plmn_comp_entry, &mcc, &mnc);
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205 oper->mcc = mcc;
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206 oper->mnc = mnc;
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207
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208 if (mcc EQ -1)
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209 return -1; /* Got end of list, not processing further */
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210
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211 /* Decompress longName */
|
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212 comp_ptr = plmn_comp_entry + 4;
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213 comp_Length = cmhMM_CompLongLength (plmn_comp_entry);
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214 result = cmhMM_Decompress (oper->longName, NULL,
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215 comp_ptr, comp_Length);
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216 if (result < 0)
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217 return result;
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218
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219 /* Decompress shrtName */
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220 comp_ptr += comp_Length;
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221 comp_Length = cmhMM_CompShrtLength (plmn_comp_entry);
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222 result = cmhMM_Decompress (oper->shrtName, oper->longName,
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223 comp_ptr, comp_Length);
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224 return result;
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225 }
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226
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227 #endif
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