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annotate packages/redboot/current/include/redboot.h @ 196:9b55e9c69693

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Merge from eCos master repository on 2001-11-23-15:32:03-GMT
author jlarmour
date Fri, 23 Nov 2001 17:12:52 +0000
parents 67850532eebb
children e0c0827131d1
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1 //==========================================================================
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2 //
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3 // redboot.h
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4 //
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5 // Standard interfaces for RedBoot
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6 //
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7 //==========================================================================
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8 //####COPYRIGHTBEGIN####
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9 //
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10 // -------------------------------------------
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11 // The contents of this file are subject to the Red Hat eCos Public License
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12 // Version 1.1 (the "License"); you may not use this file except in
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13 // compliance with the License. You may obtain a copy of the License at
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14 // http://www.redhat.com/
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15 //
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16 // Software distributed under the License is distributed on an "AS IS"
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 // License for the specific language governing rights and limitations under
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19 // the License.
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20 //
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21 // The Original Code is eCos - Embedded Configurable Operating System,
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22 // released September 30, 1998.
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23 //
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24 // The Initial Developer of the Original Code is Red Hat.
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25 // Portions created by Red Hat are
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26 // Copyright (C) 1998, 1999, 2000, 2001 Red Hat, Inc.
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27 // All Rights Reserved.
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28 // -------------------------------------------
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29 //
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30 //####COPYRIGHTEND####
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31 //==========================================================================
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32 //#####DESCRIPTIONBEGIN####
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33 //
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34 // Author(s): gthomas
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35 // Contributors: gthomas
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36 // Date: 2000-07-14
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37 // Purpose:
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38 // Description:
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39 //
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40 // This code is part of RedBoot (tm).
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41 //
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42 //####DESCRIPTIONEND####
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43 //
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44 //==========================================================================
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45
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46 #ifndef _REDBOOT_H_
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47 #define _REDBOOT_H_
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48
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49 #include <pkgconf/redboot.h>
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50 #include <pkgconf/hal.h>
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51 #include <cyg/hal/hal_if.h>
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52 #include <cyg/hal/hal_tables.h>
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53 #include <cyg/infra/diag.h>
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54 #include <string.h>
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55
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56 #ifdef CYGPKG_REDBOOT_NETWORKING
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57 #include <net/net.h>
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58 #include <net/tftp_support.h>
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59 #include <net/bootp.h>
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60 // Determine an IP address for this node, using BOOTP
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61 extern int __bootp_find_local_ip(bootp_header_t *info);
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62 #endif
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63
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64 #ifdef DEFINE_VARS
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65 #define EXTERN
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66 #else
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67 #define EXTERN extern
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68 #endif
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69
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70 // Global variables
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71 EXTERN int argc;
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72 #define MAX_ARGV 16
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73 EXTERN char *argv[MAX_ARGV];
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74 EXTERN unsigned char *ram_start, *ram_end;
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75 EXTERN unsigned char *user_ram_start, *user_ram_end;
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76 EXTERN unsigned char *workspace_start, *workspace_end;
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77 EXTERN unsigned long workspace_size;
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78
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79 // Data squirreled away after a load operation
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80 EXTERN unsigned long entry_address;
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81 EXTERN unsigned long load_address;
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82 EXTERN unsigned long load_address_end;
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83
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84
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85 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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86 EXTERN bool console_selected;
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87 #endif
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88 EXTERN bool console_echo;
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89 EXTERN bool gdb_active;
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90 #if CYGNUM_REDBOOT_CMD_LINE_EDITING != 0
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91 EXTERN bool cmd_history;
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92 #endif
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93
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94 #ifdef CYGPKG_REDBOOT_NETWORKING
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95 EXTERN bool have_net, use_bootp;
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96 EXTERN bootp_header_t my_bootp_info;
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97 EXTERN int gdb_port;
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98 EXTERN bool net_debug;
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99 #endif
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100
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101 #ifdef CYGFUN_REDBOOT_BOOT_SCRIPT
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102 EXTERN unsigned char *script;
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103 EXTERN int script_timeout;
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104 #ifdef CYGSEM_REDBOOT_VARIABLE_BAUD_RATE
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105 EXTERN int console_baud_rate;
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106 #endif
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107 #endif
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108
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109 // Prototypes
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110 typedef int _printf_fun(const char *fmt, ...);
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111 externC int strcasecmp(const char *s1, const char *s2);
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112 externC int strncasecmp(const char *s1, const char *s2, size_t len);
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113
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114 externC void mon_write_char(char c);
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115 externC bool verify_action(char *fmt, ...);
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116 //void dump_buf(void *, CYG_ADDRWORD);
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117 //void dump_buf_with_offset(void *, CYG_ADDRWORD, void *);
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118 //void vdump_buf_with_offset(_printf_fun *pf, void *, CYG_ADDRWORD, void *);
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119
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120 // Read a single line of input from the console, possibly with timeout
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121 externC int _rb_gets(char *line, int len, int timeout);
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122 // Just like _rb_gets(), except that the line buffer is assumed to contain
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123 // valid input data. This provides an easy mechanism for edit-in-place.
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124 externC int _rb_gets_preloaded(char *line, int len, int timeout);
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125 // Result codes from 'gets()'
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126 #define _GETS_TIMEOUT -1
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127 #define _GETS_CTRLC -2
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128 #define _GETS_GDB 0
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129 #define _GETS_OK 1
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130
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131 // "console" selection
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132 externC int start_console(void);
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133 externC void end_console(int old_console);
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134
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135 // CRC support
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136 unsigned short crc16(unsigned char *buf, int len);
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137 unsigned long crc32(unsigned char *buf, int len);
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138
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139 #ifdef CYGPKG_COMPRESS_ZLIB
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140 // Decompression support
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141 typedef struct _pipe {
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142 unsigned char* in_buf; // only changed by producer
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143 int in_avail; // only changed by producer
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144 unsigned char* out_buf; // only changed by consumer (init by producer)
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145 int out_size; // only changed by consumer (init by producer)
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146 const char* msg; // message from consumer
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147 void* priv; // handler's data
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148 } _pipe_t;
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149
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150 typedef int _decompress_fun_init(_pipe_t*);
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151 typedef int _decompress_fun_inflate(_pipe_t*);
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152 typedef int _decompress_fun_close(_pipe_t*, int);
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153
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154 externC _decompress_fun_init* _dc_init;
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155 externC _decompress_fun_inflate* _dc_inflate;
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156 externC _decompress_fun_close* _dc_close;
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157 #endif // CYGPKG_COMPRESS_ZLIB
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158
115
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159 // CLI support functions
182
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160 externC bool parse_num(char *s, unsigned long *val, char **es, char *delim);
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161 externC bool parse_bool(char *s, bool *val);
115
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162
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163 typedef void cmd_fun(int argc, char *argv[]);
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164 struct cmd {
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165 char *str;
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166 char *help;
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167 char *usage;
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168 cmd_fun *fun;
121
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169 } CYG_HAL_TABLE_TYPE;
182
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170 externC struct cmd *cmd_search(struct cmd *tab, struct cmd *tabend, char *arg);
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171 externC void cmd_usage(struct cmd *tab, struct cmd *tabend, char *prefix);
115
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172 #define RedBoot_cmd(_s_,_h_,_u_,_f_) cmd_entry(_s_,_h_,_u_,_f_,RedBoot_commands)
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173 #define _cmd_entry(_s_,_h_,_u_,_f_,_n_) \
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174 cmd_fun _f_; \
117
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175 struct cmd _cmd_tab_##_f_ CYG_HAL_TABLE_QUALIFIED_ENTRY(_n_,_f_) = {_s_, _h_, _u_, _f_};
115
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176 #define cmd_entry(_s_,_h_,_u_,_f_,_n_) \
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177 extern _cmd_entry(_s_,_h_,_u_,_f_,_n_)
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178 #define local_cmd_entry(_s_,_h_,_u_,_f_,_n_) \
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179 static _cmd_entry(_s_,_h_,_u_,_f_,_n_)
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180
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181 // Initialization functions
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182 #define RedBoot_INIT_FIRST 0000
154
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183 // Specify a 3 digit numeric value for proper prioritizing
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184 #define RedBoot_INIT_PRIO(_n_) 1##_n_
115
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185 #define RedBoot_INIT_LAST 9999
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186 typedef void void_fun(void);
126
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187 typedef void_fun *void_fun_ptr;
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188 struct init_tab_entry {
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189 void_fun_ptr fun;
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190 } CYG_HAL_TABLE_TYPE;
115
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191 #define _RedBoot_init(_f_,_p_) \
154
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192 struct init_tab_entry _init_tab_##_p_##_f_ \
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193 CYG_HAL_TABLE_QUALIFIED_ENTRY(RedBoot_inits,_p_##_f_) = { _f_ };
115
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194 #define RedBoot_init(_f_,_p_) _RedBoot_init(_f_,_p_)
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195
151
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196 // Main loop [idle] call-back functions
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197 #define RedBoot_IDLE_FIRST 0000
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198 #define RedBoot_IDLE_BEFORE_NETIO 3000
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199 #define RedBoot_IDLE_NETIO 5000
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200 #define RedBoot_IDLE_AFTER_NETIO 7000
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201 #define RedBoot_IDLE_LAST 9999
156
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202 typedef void idle_fun(bool);
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203 typedef idle_fun *idle_fun_ptr;
151
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204 struct idle_tab_entry {
156
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205 idle_fun_ptr fun;
151
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206 } CYG_HAL_TABLE_TYPE;
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207 #define _RedBoot_idle(_f_,_p_) \
156
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208 struct idle_tab_entry _idle_tab_##_p_##_f_ \
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209 CYG_HAL_TABLE_QUALIFIED_ENTRY(RedBoot_idle,_p_##_f_) = { _f_ };
151
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210 #define RedBoot_idle(_f_,_p_) _RedBoot_idle(_f_,_p_)
156
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211
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212 // This function called when changing idle/not - mostly used by I/O
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213 // to support idle when timeout, etc.
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214 void do_idle(bool state);
151
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215
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216 // Option processing support
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217
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218 struct option_info {
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219 char flag;
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220 bool takes_arg;
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221 int arg_type;
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222 void **arg;
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223 bool *arg_set;
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224 char *name;
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225 };
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226
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227 #define OPTION_ARG_TYPE_NUM 0 // Numeric data
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228 #define OPTION_ARG_TYPE_STR 1 // Generic string
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229 #define OPTION_ARG_TYPE_FLG 2 // Flag only
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230
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231 // Command line parsing
183
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232 externC struct cmd *parse(char **line, int *argc, char **argv);
130
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233
182
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234 externC void init_opts(struct option_info *opts, char flag, bool takes_arg,
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235 int arg_type, void **arg, bool *arg_set, char *name);
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236 externC bool scan_opts(int argc, char *argv[], int first,
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237 struct option_info *opts, int num_opts,
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238 void **def_arg, int def_arg_type, char *def_descr);
115
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239
182
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240 externC int redboot_getc(void);
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241 externC void redboot_getc_init(int (*fun)(char *, int, int *), int verbose);
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242 externC void redboot_getc_rewind(void);
124
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243
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244 #define BUF_SIZE 256
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245 typedef struct {
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246 int (*fun)(char *, int len, int *err);
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247 unsigned char buf[BUF_SIZE];
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248 unsigned char *bufp;
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249 int avail, len, err;
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250 int verbose, tick;
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251 } getc_info_t;
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252
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253
165
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254 #ifdef CYGNUM_HAL_VIRTUAL_VECTOR_AUX_CHANNELS
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255 #define CYGNUM_HAL_VIRTUAL_VECTOR_NUM_CHANNELS \
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256 (CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS+CYGNUM_HAL_VIRTUAL_VECTOR_AUX_CHANNELS)
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257 #else
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258 #define CYGNUM_HAL_VIRTUAL_VECTOR_NUM_CHANNELS \
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259 CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS
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260 #endif
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261
184
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262 #ifdef CYGPKG_REDBOOT_NETWORKING
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263 //-----------------------------------------------------------------------------
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264 // DNS wrapper
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265 #ifdef CYGPKG_REDBOOT_NETWORKING_DNS
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266
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267 // I would really like if we could just pull in cyg/ns/dns/dns.h, but
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268 // that would require adding dummy <network.h> and <netinet/in.h> files.
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269
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270 // Host name / IP mapping
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271 struct hostent {
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272 char *h_name; /* official name of host */
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273 char **h_aliases; /* alias list */
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274 int h_addrtype; /* host address type */
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275 int h_length; /* length of address */
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276 char **h_addr_list; /* list of addresses */
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277 };
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278 #define h_addr h_addr_list[0] /* for backward compatibility */
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279
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280 externC int redboot_dns_res_init(void);
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281 externC struct hostent *gethostbyname(const char *host);
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282
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283 // Error reporting
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284 externC int h_errno;
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285
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286 #define DNS_SUCCESS 0
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287 #define HOST_NOT_FOUND 1
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288 #define TRY_AGAIN 2
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289 #define NO_RECOVERY 3
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290 #define NO_DATA 4
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291
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292 static inline bool
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293 _gethostbyname(const char* name, in_addr_t* host)
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294 {
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295 struct hostent* hent = gethostbyname(name);
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296 if (hent) {
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297 memcpy(host, hent->h_addr_list[0], sizeof(in_addr_t));
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298 return true;
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299 }
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300 // Fall back to inet_aton - gethostbyname may already have tried
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301 // it, but we can't know for sure (the DNS IP may not have been
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302 // valid, preventing the inet_aton).
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303 return inet_aton(name, host);
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304 }
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305 #else
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306 static inline bool
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307 _gethostbyname(const char* name, in_addr_t* host)
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308 {
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309 return inet_aton(name, host);
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310 }
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311 #endif // CYGPKG_REDBOOT_NETWORKING_DNS
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312 #endif // CYGPKG_REDBOOT_NETWORKING
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313
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314 //-----------------------------------------------------------------------------
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315 // String functions. Some of these are duplicates of the same functions in
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316 // the I18N package.
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317
115
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318 // Validate a hex character
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319 __inline__ static bool
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320 _is_hex(char c)
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321 {
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322 return (((c >= '0') && (c <= '9')) ||
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323 ((c >= 'A') && (c <= 'F')) ||
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324 ((c >= 'a') && (c <= 'f')));
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325 }
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326
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327 // Convert a single hex nibble
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328 __inline__ static int
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329 _from_hex(char c)
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330 {
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331 int ret = 0;
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332
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333 if ((c >= '0') && (c <= '9')) {
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334 ret = (c - '0');
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335 } else if ((c >= 'a') && (c <= 'f')) {
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336 ret = (c - 'a' + 0x0a);
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337 } else if ((c >= 'A') && (c <= 'F')) {
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338 ret = (c - 'A' + 0x0A);
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339 }
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340 return ret;
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341 }
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342
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343 // Convert a character to lower case
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344 __inline__ static char
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345 _tolower(char c)
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346 {
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347 if ((c >= 'A') && (c <= 'Z')) {
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348 c = (c - 'A') + 'a';
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349 }
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350 return c;
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351 }
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352
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353 // Validate alpha
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354 __inline__ static bool
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355 isalpha(int c)
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356 {
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357 return (((c >= 'a') && (c <= 'z')) ||
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358 ((c >= 'A') && (c <= 'Z')));
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359 }
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360
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361 // Validate digit
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362 __inline__ static bool
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363 isdigit(int c)
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364 {
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365 return ((c >= '0') && (c <= '9'));
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366 }
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367
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368 // Validate alphanum
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369 __inline__ static bool
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370 isalnum(int c)
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371 {
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372 return (isalpha(c) || isdigit(c));
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373 }
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374
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375 #endif // _REDBOOT_H_