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annotate packages/redboot/current/include/redboot.h @ 228:e1b642d73533

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Improve load command - make I/O methods table driven.
author gthomas
date Mon, 01 Jul 2002 20:55:25 +0000
parents d2c90368aeef
children a6660704f7a6
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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 //####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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12 // Copyright (C) 2002 Gary Thomas
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13 //
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14 // eCos is free software; you can redistribute it and/or modify it under
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15 // the terms of the GNU General Public License as published by the Free
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16 // Software Foundation; either version 2 or (at your option) any later version.
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17 //
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18 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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19 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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21 // for more details.
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22 //
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23 // You should have received a copy of the GNU General Public License along
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24 // with eCos; if not, write to the Free Software Foundation, Inc.,
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25 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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26 //
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27 // As a special exception, if other files instantiate templates or use macros
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28 // or inline functions from this file, or you compile this file and link it
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29 // with other works to produce a work based on this file, this file does not
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30 // by itself cause the resulting work to be covered by the GNU General Public
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31 // License. However the source code for this file must still be made available
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32 // in accordance with section (3) of the GNU General Public License.
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33 //
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34 // This exception does not invalidate any other reasons why a work based on
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35 // this file might be covered by the GNU General Public License.
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36 //
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37 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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38 // at http://sources.redhat.com/ecos/ecos-license/
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39 // -------------------------------------------
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40 //####ECOSGPLCOPYRIGHTEND####
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41 //==========================================================================
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42 //#####DESCRIPTIONBEGIN####
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43 //
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44 // Author(s): gthomas
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45 // Contributors: gthomas
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46 // Date: 2000-07-14
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47 // Purpose:
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48 // Description:
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49 //
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50 // This code is part of RedBoot (tm).
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51 //
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52 //####DESCRIPTIONEND####
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53 //
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54 //==========================================================================
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55
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56 #ifndef _REDBOOT_H_
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57 #define _REDBOOT_H_
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58
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59 #include <pkgconf/redboot.h>
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60 #include <pkgconf/hal.h>
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61 #include <cyg/hal/hal_if.h>
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62 #include <cyg/hal/hal_tables.h>
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63 #include <cyg/infra/diag.h>
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64 #include <string.h>
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65
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66 #ifdef CYGPKG_REDBOOT_NETWORKING
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67 #include <net/net.h>
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68 #include <net/bootp.h>
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69 // Determine an IP address for this node, using BOOTP
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70 extern int __bootp_find_local_ip(bootp_header_t *info);
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71 #endif
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72
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73 #ifdef DEFINE_VARS
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74 #define EXTERN
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75 #else
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76 #define EXTERN extern
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77 #endif
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78
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79 // Global variables
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80 EXTERN int argc;
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81 #define MAX_ARGV 16
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82 EXTERN char *argv[MAX_ARGV];
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83 EXTERN unsigned char *ram_start, *ram_end;
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84 EXTERN unsigned char *user_ram_start, *user_ram_end;
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85 EXTERN unsigned char *workspace_start, *workspace_end;
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86 EXTERN unsigned long workspace_size;
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87
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88 // Data squirreled away after a load operation
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89 EXTERN unsigned long entry_address;
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90 EXTERN unsigned long load_address;
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91 EXTERN unsigned long load_address_end;
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92
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93
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94 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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95 EXTERN bool console_selected;
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96 #endif
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97 EXTERN bool console_echo;
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98 EXTERN bool gdb_active;
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99 #if CYGNUM_REDBOOT_CMD_LINE_EDITING != 0
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100 EXTERN bool cmd_history;
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101 #endif
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102
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103 #ifdef CYGPKG_REDBOOT_NETWORKING
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104 EXTERN bool have_net, use_bootp;
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105 EXTERN bootp_header_t my_bootp_info;
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106 EXTERN int gdb_port;
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107 EXTERN bool net_debug;
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108 #endif
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109
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110 #ifdef CYGFUN_REDBOOT_BOOT_SCRIPT
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111 EXTERN unsigned char *script;
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112 EXTERN int script_timeout;
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113 #ifdef CYGSEM_REDBOOT_VARIABLE_BAUD_RATE
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114 EXTERN int console_baud_rate;
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115 #endif
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116 #endif
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117
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118 // Prototypes
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119 typedef int _printf_fun(const char *fmt, ...);
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120 externC int strcasecmp(const char *s1, const char *s2);
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121 externC int strncasecmp(const char *s1, const char *s2, size_t len);
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122
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123 externC void mon_write_char(char c);
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124 externC bool verify_action(char *fmt, ...);
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125 externC bool verify_action_with_timeout(int timeout, char *fmt, ...);
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126
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127 // Read a single line of input from the console, possibly with timeout
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128 externC int _rb_gets(char *line, int len, int timeout);
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129 // Just like _rb_gets(), except that the line buffer is assumed to contain
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130 // valid input data. This provides an easy mechanism for edit-in-place.
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131 externC int _rb_gets_preloaded(char *line, int len, int timeout);
143
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132 // Result codes from 'gets()'
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133 #define _GETS_TIMEOUT -1
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134 #define _GETS_CTRLC -2
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135 #define _GETS_GDB 0
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136 #define _GETS_OK 1
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137
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138 // "console" selection
182
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139 externC int start_console(void);
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140 externC void end_console(int old_console);
115
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141
151
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142 // CRC support
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143 unsigned short crc16(unsigned char *buf, int len);
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144 unsigned long crc32(unsigned char *buf, int len);
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145
208
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146 // Alias functions
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147 #ifdef CYGSEM_REDBOOT_FLASH_ALIASES
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148 externC char *flash_lookup_alias(char *alias, char *alias_buf);
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149 #endif
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150 externC void expand_aliases(char *line, int len);
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151
228
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152 //
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153 // Stream I/O support
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154 //
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155
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156 typedef struct {
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157 char *filename;
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158 struct load_io_entry *mode;
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159 int chan;
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160 #ifdef CYGPKG_REDBOOT_NETWORKING
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161 struct sockaddr_in *server;
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162 #endif
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163 } connection_info_t;
208
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164
228
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165 typedef struct {
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166 int (*open)(connection_info_t *info, int *err);
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167 void (*close)(int *err);
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168 void (*terminate)(bool abort, int (*getc)(void));
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169 int (*read)(char *buf, int size, int *err);
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170 char *(*error)(int err);
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171 } getc_io_funcs_t;
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172
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173 #define GETC_IO_FUNCS(_label_, _open_, _close_, _terminate_, _read_, _error_) \
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174 getc_io_funcs_t _label_ = { \
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175 _open_, _close_, _terminate_, _read_, _error_ \
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176 };
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177
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178 struct load_io_entry {
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179 char *mode;
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180 getc_io_funcs_t *funcs;
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181 bool can_verbose;
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182 bool need_filename;
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183 } CYG_HAL_TABLE_TYPE;
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184 #define _RedBoot_load(_mode_,_funcs_,_verbose_,_filename_) \
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185 struct load_io_entry _load_tab_##_funcs_##_mode_ \
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186 CYG_HAL_TABLE_QUALIFIED_ENTRY(RedBoot_load,_funcs_##_mode) = \
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187 { #_mode_, &_funcs_, _verbose_, _filename_ };
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188 #define RedBoot_load(_mode_,_funcs_,_verbose_,_filename_) \
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189 _RedBoot_load(_mode_,_funcs_,_verbose_,_filename_)
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190
156
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191 #ifdef CYGPKG_COMPRESS_ZLIB
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192 // Decompression support
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193 typedef struct _pipe {
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194 unsigned char* in_buf; // only changed by producer
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195 int in_avail; // only changed by producer
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196 unsigned char* out_buf; // only changed by consumer (init by producer)
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197 int out_size; // only changed by consumer (init by producer)
208
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198 int out_max; // set by producer
156
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199 const char* msg; // message from consumer
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200 void* priv; // handler's data
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201 } _pipe_t;
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202
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203 typedef int _decompress_fun_init(_pipe_t*);
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204 typedef int _decompress_fun_inflate(_pipe_t*);
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205 typedef int _decompress_fun_close(_pipe_t*, int);
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206
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207 externC _decompress_fun_init* _dc_init;
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208 externC _decompress_fun_inflate* _dc_inflate;
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209 externC _decompress_fun_close* _dc_close;
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210 #endif // CYGPKG_COMPRESS_ZLIB
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211
115
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212 // CLI support functions
182
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213 externC bool parse_num(char *s, unsigned long *val, char **es, char *delim);
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214 externC bool parse_bool(char *s, bool *val);
115
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215
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216 typedef void cmd_fun(int argc, char *argv[]);
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217 struct cmd {
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218 char *str;
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219 char *help;
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220 char *usage;
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221 cmd_fun *fun;
208
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222 struct cmd *sub_cmds, *sub_cmds_end;
121
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223 } CYG_HAL_TABLE_TYPE;
182
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224 externC struct cmd *cmd_search(struct cmd *tab, struct cmd *tabend, char *arg);
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225 externC void cmd_usage(struct cmd *tab, struct cmd *tabend, char *prefix);
208
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226 #define RedBoot_cmd(_s_,_h_,_u_,_f_) cmd_entry(_s_,_h_,_u_,_f_,0,0,RedBoot_commands)
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227 #define RedBoot_nested_cmd(_s_,_h_,_u_,_f_,_subs_,_sube_) cmd_entry(_s_,_h_,_u_,_f_,_subs_,_sube_,RedBoot_commands)
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228 #define _cmd_entry(_s_,_h_,_u_,_f_,_subs_,_sube_,_n_) \
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229 cmd_fun _f_; \
208
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230 struct cmd _cmd_tab_##_f_ CYG_HAL_TABLE_QUALIFIED_ENTRY(_n_,_f_) = {_s_, _h_, _u_, _f_, _subs_, _sube_};
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231 #define cmd_entry(_s_,_h_,_u_,_f_,_subs_,_sube_,_n_) \
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232 extern _cmd_entry(_s_,_h_,_u_,_f_,_subs_,_sube_,_n_)
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233 #define local_cmd_entry(_s_,_h_,_u_,_f_,_n_) \
208
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234 static _cmd_entry(_s_,_h_,_u_,_f_,0,0,_n_)
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235
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236 // Initialization functions
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237 #define RedBoot_INIT_FIRST 0000
154
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238 // Specify a 3 digit numeric value for proper prioritizing
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239 #define RedBoot_INIT_PRIO(_n_) 1##_n_
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240 #define RedBoot_INIT_LAST 9999
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241 typedef void void_fun(void);
126
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242 typedef void_fun *void_fun_ptr;
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243 struct init_tab_entry {
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244 void_fun_ptr fun;
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245 } CYG_HAL_TABLE_TYPE;
115
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246 #define _RedBoot_init(_f_,_p_) \
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247 struct init_tab_entry _init_tab_##_p_##_f_ \
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248 CYG_HAL_TABLE_QUALIFIED_ENTRY(RedBoot_inits,_p_##_f_) = { _f_ };
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249 #define RedBoot_init(_f_,_p_) _RedBoot_init(_f_,_p_)
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250
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251 // Main loop [idle] call-back functions
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252 #define RedBoot_IDLE_FIRST 0000
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253 #define RedBoot_IDLE_BEFORE_NETIO 3000
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254 #define RedBoot_IDLE_NETIO 5000
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255 #define RedBoot_IDLE_AFTER_NETIO 7000
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256 #define RedBoot_IDLE_LAST 9999
156
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257 typedef void idle_fun(bool);
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258 typedef idle_fun *idle_fun_ptr;
151
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259 struct idle_tab_entry {
156
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260 idle_fun_ptr fun;
151
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261 } CYG_HAL_TABLE_TYPE;
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262 #define _RedBoot_idle(_f_,_p_) \
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263 struct idle_tab_entry _idle_tab_##_p_##_f_ \
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264 CYG_HAL_TABLE_QUALIFIED_ENTRY(RedBoot_idle,_p_##_f_) = { _f_ };
151
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265 #define RedBoot_idle(_f_,_p_) _RedBoot_idle(_f_,_p_)
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266
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267 // This function called when changing idle/not - mostly used by I/O
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268 // to support idle when timeout, etc.
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269 void do_idle(bool state);
228
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270
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271 // Option processing support
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272
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273 struct option_info {
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274 char flag;
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275 bool takes_arg;
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276 int arg_type;
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277 void **arg;
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278 bool *arg_set;
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279 char *name;
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280 };
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281
117
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282 #define OPTION_ARG_TYPE_NUM 0 // Numeric data
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283 #define OPTION_ARG_TYPE_STR 1 // Generic string
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284 #define OPTION_ARG_TYPE_FLG 2 // Flag only
115
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285
130
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286 // Command line parsing
183
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287 externC struct cmd *parse(char **line, int *argc, char **argv);
130
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288
182
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289 externC void init_opts(struct option_info *opts, char flag, bool takes_arg,
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290 int arg_type, void **arg, bool *arg_set, char *name);
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291 externC bool scan_opts(int argc, char *argv[], int first,
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292 struct option_info *opts, int num_opts,
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293 void **def_arg, int def_arg_type, char *def_descr);
115
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294
165
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295 #ifdef CYGNUM_HAL_VIRTUAL_VECTOR_AUX_CHANNELS
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296 #define CYGNUM_HAL_VIRTUAL_VECTOR_NUM_CHANNELS \
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297 (CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS+CYGNUM_HAL_VIRTUAL_VECTOR_AUX_CHANNELS)
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298 #else
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299 #define CYGNUM_HAL_VIRTUAL_VECTOR_NUM_CHANNELS \
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300 CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS
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301 #endif
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302
184
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303 #ifdef CYGPKG_REDBOOT_NETWORKING
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304 //-----------------------------------------------------------------------------
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305 // DNS wrapper
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306 #ifdef CYGPKG_REDBOOT_NETWORKING_DNS
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307
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308 // I would really like if we could just pull in cyg/ns/dns/dns.h, but
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309 // that would require adding dummy <network.h> and <netinet/in.h> files.
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310
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311 // Host name / IP mapping
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312 struct hostent {
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313 char *h_name; /* official name of host */
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314 char **h_aliases; /* alias list */
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315 int h_addrtype; /* host address type */
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316 int h_length; /* length of address */
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317 char **h_addr_list; /* list of addresses */
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318 };
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319 #define h_addr h_addr_list[0] /* for backward compatibility */
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320
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321 externC int redboot_dns_res_init(void);
208
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322 externC void set_dns(char* new_ip);
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323 externC void show_dns(void);
184
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324 externC struct hostent *gethostbyname(const char *host);
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325
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326 // Error reporting
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327 externC int h_errno;
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328
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329 #define DNS_SUCCESS 0
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330 #define HOST_NOT_FOUND 1
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331 #define TRY_AGAIN 2
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332 #define NO_RECOVERY 3
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333 #define NO_DATA 4
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334
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335 static inline bool
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336 _gethostbyname(const char* name, in_addr_t* host)
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337 {
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338 struct hostent* hent = gethostbyname(name);
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339 if (hent) {
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340 memcpy(host, hent->h_addr_list[0], sizeof(in_addr_t));
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341 return true;
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342 }
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343 // Fall back to inet_aton - gethostbyname may already have tried
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344 // it, but we can't know for sure (the DNS IP may not have been
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345 // valid, preventing the inet_aton).
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346 return inet_aton(name, host);
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347 }
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348 #else
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349 static inline bool
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350 _gethostbyname(const char* name, in_addr_t* host)
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351 {
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352 return inet_aton(name, host);
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353 }
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354 #endif // CYGPKG_REDBOOT_NETWORKING_DNS
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355 #endif // CYGPKG_REDBOOT_NETWORKING
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356
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357 //-----------------------------------------------------------------------------
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358 // String functions. Some of these are duplicates of the same functions in
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359 // the I18N package.
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360
115
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361 // Validate a hex character
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362 __inline__ static bool
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363 _is_hex(char c)
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364 {
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365 return (((c >= '0') && (c <= '9')) ||
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366 ((c >= 'A') && (c <= 'F')) ||
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367 ((c >= 'a') && (c <= 'f')));
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368 }
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369
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370 // Convert a single hex nibble
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371 __inline__ static int
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372 _from_hex(char c)
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373 {
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374 int ret = 0;
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375
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376 if ((c >= '0') && (c <= '9')) {
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377 ret = (c - '0');
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378 } else if ((c >= 'a') && (c <= 'f')) {
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379 ret = (c - 'a' + 0x0a);
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380 } else if ((c >= 'A') && (c <= 'F')) {
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381 ret = (c - 'A' + 0x0A);
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382 }
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383 return ret;
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384 }
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385
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386 // Convert a character to lower case
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387 __inline__ static char
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388 _tolower(char c)
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389 {
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390 if ((c >= 'A') && (c <= 'Z')) {
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391 c = (c - 'A') + 'a';
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392 }
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393 return c;
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394 }
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395
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396 // Validate alpha
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397 __inline__ static bool
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398 isalpha(int c)
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399 {
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400 return (((c >= 'a') && (c <= 'z')) ||
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401 ((c >= 'A') && (c <= 'Z')));
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402 }
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403
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404 // Validate digit
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405 __inline__ static bool
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406 isdigit(int c)
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407 {
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408 return ((c >= '0') && (c <= '9'));
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409 }
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410
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411 // Validate alphanum
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412 __inline__ static bool
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413 isalnum(int c)
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414 {
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415 return (isalpha(c) || isdigit(c));
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416 }
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417
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418 //----------------------------------------------------------------------------
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419 // syscall values
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420 #if defined(CYGSEM_REDBOOT_BSP_SYSCALLS)
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421
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422 // These are required by the ANSI C part of newlib (excluding system() of
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423 // course).
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424 #define SYS_exit 1
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425 #define SYS_open 2
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426 #define SYS_close 3
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427 #define SYS_read 4
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428 #define SYS_write 5
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429 #define SYS_lseek 6
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430 #define SYS_unlink 7
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431 #define SYS_getpid 8
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432 #define SYS_kill 9
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433 #define SYS_fstat 10
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434 //#define SYS_sbrk 11 - not currently a system call, but reserved.
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435
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436 // ARGV support.
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437 #define SYS_argvlen 12
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438 #define SYS_argv 13
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439
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440 // These are extras added for one reason or another.
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441 #define SYS_chdir 14
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442 #define SYS_stat 15
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443 #define SYS_chmod 16
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444 #define SYS_utime 17
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445 #define SYS_time 18
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446 #define SYS_gettimeofday 19
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447 #define SYS_times 20
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448
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449 #define SYS_interrupt 1000
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450 #define SYS_meminfo 1001
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451
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452 #define __GET_SHARED 0xbaad // 47789 decimal
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453
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454 #ifdef CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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455
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456 #define SYS_timer_call_back 2001
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457 #define SYS_timer_frequency 2002
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458 #define SYS_timer_reset 2003
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459
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460 #endif // CYGSEM_REDBOOT_BSP_SYSCALLS_GPROF
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461 #define SYS_rename 3001
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462 #define SYS_isatty 3002
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463 #define SYS_system 3003
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464
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465 #endif // CYGSEM_REDBOOT_BSP_SYSCALLS
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466
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467 #endif // _REDBOOT_H_