1 | /* vi: set sw=4 ts=4: */
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2 | /*
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3 | * Support code for the hexdump and od applets,
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4 | * based on code from util-linux v 2.11l
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5 | *
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6 | * Copyright (c) 1989
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7 | * The Regents of the University of California. All rights reserved.
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8 | *
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9 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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10 | *
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11 | * Original copyright notice is retained at the end of this file.
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12 | */
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13 |
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14 | #include "libbb.h"
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15 | #include "dump.h"
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16 |
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17 | static const char index_str[] ALIGN1 = ".#-+ 0123456789";
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18 |
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19 | static const char size_conv_str[] ALIGN1 =
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20 | "\x1\x4\x4\x4\x4\x4\x4\x8\x8\x8\x8\010cdiouxXeEfgG";
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21 |
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22 | static const char lcc[] ALIGN1 = "diouxX";
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23 |
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24 |
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25 | typedef struct priv_dumper_t {
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26 | dumper_t pub;
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27 |
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28 | char **argv;
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29 | FU *endfu;
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30 | off_t savaddress; /* saved address/offset in stream */
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31 | off_t eaddress; /* end address */
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32 | off_t address; /* address/offset in stream */
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33 | int blocksize;
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34 | smallint exitval; /* final exit value */
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35 |
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36 | /* former statics */
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37 | smallint next__done;
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38 | smallint get__ateof; // = 1;
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39 | unsigned char *get__curp;
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40 | unsigned char *get__savp;
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41 | } priv_dumper_t;
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42 |
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43 | dumper_t* FAST_FUNC alloc_dumper(void)
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44 | {
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45 | priv_dumper_t *dumper = xzalloc(sizeof(*dumper));
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46 | dumper->pub.dump_length = -1;
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47 | dumper->pub.dump_vflag = FIRST;
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48 | dumper->get__ateof = 1;
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49 | return &dumper->pub;
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50 | }
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51 |
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52 |
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53 | static NOINLINE int bb_dump_size(FS *fs)
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54 | {
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55 | FU *fu;
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56 | int bcnt, cur_size;
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57 | char *fmt;
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58 | const char *p;
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59 | int prec;
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60 |
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61 | /* figure out the data block bb_dump_size needed for each format unit */
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62 | for (cur_size = 0, fu = fs->nextfu; fu; fu = fu->nextfu) {
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63 | if (fu->bcnt) {
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64 | cur_size += fu->bcnt * fu->reps;
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65 | continue;
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66 | }
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67 | for (bcnt = prec = 0, fmt = fu->fmt; *fmt; ++fmt) {
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68 | if (*fmt != '%')
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69 | continue;
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70 | /*
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71 | * skip any special chars -- save precision in
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72 | * case it's a %s format.
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73 | */
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74 | while (strchr(index_str + 1, *++fmt));
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75 | if (*fmt == '.' && isdigit(*++fmt)) {
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76 | prec = atoi(fmt);
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77 | while (isdigit(*++fmt))
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78 | continue;
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79 | }
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80 | p = strchr(size_conv_str + 12, *fmt);
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81 | if (!p) {
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82 | if (*fmt == 's') {
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83 | bcnt += prec;
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84 | } else if (*fmt == '_') {
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85 | ++fmt;
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86 | if ((*fmt == 'c') || (*fmt == 'p') || (*fmt == 'u')) {
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87 | bcnt += 1;
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88 | }
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89 | }
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90 | } else {
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91 | bcnt += size_conv_str[p - (size_conv_str + 12)];
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92 | }
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93 | }
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94 | cur_size += bcnt * fu->reps;
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95 | }
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96 | return cur_size;
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97 | }
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98 |
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99 | static NOINLINE void rewrite(priv_dumper_t *dumper, FS *fs)
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100 | {
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101 | enum { NOTOKAY, USEBCNT, USEPREC } sokay;
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102 | PR *pr, **nextpr = NULL;
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103 | FU *fu;
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104 | char *p1, *p2, *p3;
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105 | char savech, *fmtp;
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106 | const char *byte_count_str;
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107 | int nconv, prec = 0;
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108 |
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109 | for (fu = fs->nextfu; fu; fu = fu->nextfu) {
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110 | /*
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111 | * break each format unit into print units; each
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112 | * conversion character gets its own.
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113 | */
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114 | for (nconv = 0, fmtp = fu->fmt; *fmtp; nextpr = &pr->nextpr) {
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115 | /* NOSTRICT */
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116 | /* DBU:[dvae@cray.com] zalloc so that forward ptrs start out NULL*/
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117 | pr = xzalloc(sizeof(PR));
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118 | if (!fu->nextpr)
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119 | fu->nextpr = pr;
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120 | /* ignore nextpr -- its unused inside the loop and is
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121 | * uninitialized 1st time through.
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122 | */
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123 |
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124 | /* skip preceding text and up to the next % sign */
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125 | for (p1 = fmtp; *p1 && *p1 != '%'; ++p1)
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126 | continue;
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127 |
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128 | /* only text in the string */
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129 | if (!*p1) {
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130 | pr->fmt = fmtp;
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131 | pr->flags = F_TEXT;
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132 | break;
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133 | }
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134 |
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135 | /*
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136 | * get precision for %s -- if have a byte count, don't
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137 | * need it.
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138 | */
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139 | if (fu->bcnt) {
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140 | sokay = USEBCNT;
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141 | /* skip to conversion character */
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142 | for (++p1; strchr(index_str, *p1); ++p1)
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143 | continue;
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144 | } else {
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145 | /* skip any special chars, field width */
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146 | while (strchr(index_str + 1, *++p1))
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147 | continue;
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148 | if (*p1 == '.' && isdigit(*++p1)) {
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149 | sokay = USEPREC;
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150 | prec = atoi(p1);
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151 | while (isdigit(*++p1))
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152 | continue;
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153 | } else
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154 | sokay = NOTOKAY;
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155 | }
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156 |
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157 | p2 = p1 + 1; /* set end pointer */
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158 |
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159 | /*
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160 | * figure out the byte count for each conversion;
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161 | * rewrite the format as necessary, set up blank-
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162 | * pbb_dump_adding for end of data.
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163 | */
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164 | if (*p1 == 'c') {
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165 | pr->flags = F_CHAR;
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166 | DO_BYTE_COUNT_1:
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167 | byte_count_str = "\001";
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168 | DO_BYTE_COUNT:
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169 | if (fu->bcnt) {
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170 | do {
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171 | if (fu->bcnt == *byte_count_str) {
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172 | break;
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173 | }
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174 | } while (*++byte_count_str);
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175 | }
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176 | /* Unlike the original, output the remainder of the format string. */
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177 | if (!*byte_count_str) {
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178 | bb_error_msg_and_die("bad byte count for conversion character %s", p1);
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179 | }
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180 | pr->bcnt = *byte_count_str;
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181 | } else if (*p1 == 'l') {
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182 | ++p2;
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183 | ++p1;
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184 | DO_INT_CONV:
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185 | {
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186 | const char *e;
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187 | e = strchr(lcc, *p1);
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188 | if (!e) {
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189 | goto DO_BAD_CONV_CHAR;
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190 | }
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191 | pr->flags = F_INT;
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192 | if (e > lcc + 1) {
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193 | pr->flags = F_UINT;
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194 | }
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195 | byte_count_str = "\004\002\001";
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196 | goto DO_BYTE_COUNT;
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197 | }
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198 | /* NOTREACHED */
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199 | } else if (strchr(lcc, *p1)) {
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200 | goto DO_INT_CONV;
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201 | } else if (strchr("eEfgG", *p1)) {
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202 | pr->flags = F_DBL;
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203 | byte_count_str = "\010\004";
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204 | goto DO_BYTE_COUNT;
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205 | } else if (*p1 == 's') {
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206 | pr->flags = F_STR;
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207 | if (sokay == USEBCNT) {
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208 | pr->bcnt = fu->bcnt;
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209 | } else if (sokay == USEPREC) {
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210 | pr->bcnt = prec;
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211 | } else { /* NOTOKAY */
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212 | bb_error_msg_and_die("%%s requires a precision or a byte count");
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213 | }
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214 | } else if (*p1 == '_') {
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215 | ++p2;
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216 | switch (p1[1]) {
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217 | case 'A':
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218 | dumper->endfu = fu;
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219 | fu->flags |= F_IGNORE;
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220 | /* FALLTHROUGH */
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221 | case 'a':
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222 | pr->flags = F_ADDRESS;
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223 | ++p2;
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224 | if ((p1[2] != 'd') && (p1[2] != 'o') && (p1[2] != 'x')) {
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225 | goto DO_BAD_CONV_CHAR;
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226 | }
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227 | *p1 = p1[2];
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228 | break;
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229 | case 'c':
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230 | pr->flags = F_C;
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231 | /* *p1 = 'c'; set in conv_c */
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232 | goto DO_BYTE_COUNT_1;
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233 | case 'p':
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234 | pr->flags = F_P;
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235 | *p1 = 'c';
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236 | goto DO_BYTE_COUNT_1;
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237 | case 'u':
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238 | pr->flags = F_U;
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239 | /* *p1 = 'c'; set in conv_u */
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240 | goto DO_BYTE_COUNT_1;
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241 | default:
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242 | goto DO_BAD_CONV_CHAR;
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243 | }
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244 | } else {
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245 | DO_BAD_CONV_CHAR:
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246 | bb_error_msg_and_die("bad conversion character %%%s", p1);
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247 | }
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248 |
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249 | /*
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250 | * copy to PR format string, set conversion character
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251 | * pointer, update original.
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252 | */
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253 | savech = *p2;
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254 | p1[1] = '\0';
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255 | pr->fmt = xstrdup(fmtp);
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256 | *p2 = savech;
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257 | //Too early! xrealloc can move pr->fmt!
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258 | //pr->cchar = pr->fmt + (p1 - fmtp);
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259 |
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260 | /* DBU:[dave@cray.com] w/o this, trailing fmt text, space is lost.
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261 | * Skip subsequent text and up to the next % sign and tack the
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262 | * additional text onto fmt: eg. if fmt is "%x is a HEX number",
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263 | * we lose the " is a HEX number" part of fmt.
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264 | */
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265 | for (p3 = p2; *p3 && *p3 != '%'; p3++)
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266 | continue;
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267 | if (p3 > p2) {
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268 | savech = *p3;
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269 | *p3 = '\0';
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270 | pr->fmt = xrealloc(pr->fmt, strlen(pr->fmt) + (p3-p2) + 1);
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271 | strcat(pr->fmt, p2);
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272 | *p3 = savech;
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273 | p2 = p3;
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274 | }
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275 |
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276 | pr->cchar = pr->fmt + (p1 - fmtp);
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277 | fmtp = p2;
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278 |
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279 | /* only one conversion character if byte count */
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280 | if (!(pr->flags & F_ADDRESS) && fu->bcnt && nconv++) {
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281 | bb_error_msg_and_die("byte count with multiple conversion characters");
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282 | }
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283 | }
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284 | /*
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285 | * if format unit byte count not specified, figure it out
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286 | * so can adjust rep count later.
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287 | */
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288 | if (!fu->bcnt)
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289 | for (pr = fu->nextpr; pr; pr = pr->nextpr)
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290 | fu->bcnt += pr->bcnt;
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291 | }
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292 | /*
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293 | * if the format string interprets any data at all, and it's
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294 | * not the same as the blocksize, and its last format unit
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295 | * interprets any data at all, and has no iteration count,
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296 | * repeat it as necessary.
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297 | *
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298 | * if, rep count is greater than 1, no trailing whitespace
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299 | * gets output from the last iteration of the format unit.
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300 | */
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301 | for (fu = fs->nextfu; fu; fu = fu->nextfu) {
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302 | if (!fu->nextfu && fs->bcnt < dumper->blocksize
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303 | && !(fu->flags & F_SETREP) && fu->bcnt
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304 | ) {
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305 | fu->reps += (dumper->blocksize - fs->bcnt) / fu->bcnt;
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306 | }
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307 | if (fu->reps > 1) {
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308 | for (pr = fu->nextpr;; pr = pr->nextpr)
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309 | if (!pr->nextpr)
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310 | break;
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311 | for (p1 = pr->fmt, p2 = NULL; *p1; ++p1)
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312 | p2 = isspace(*p1) ? p1 : NULL;
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313 | if (p2)
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314 | pr->nospace = p2;
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315 | }
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316 | if (!fu->nextfu)
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317 | break;
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318 | }
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319 | }
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320 |
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321 | static void do_skip(priv_dumper_t *dumper, const char *fname, int statok)
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322 | {
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323 | struct stat sbuf;
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324 |
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325 | if (statok) {
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326 | xfstat(STDIN_FILENO, &sbuf, fname);
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327 | if (!(S_ISCHR(sbuf.st_mode) || S_ISBLK(sbuf.st_mode) || S_ISFIFO(sbuf.st_mode))
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328 | && dumper->pub.dump_skip >= sbuf.st_size
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329 | ) {
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330 | /* If bb_dump_size valid and pub.dump_skip >= size */
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331 | dumper->pub.dump_skip -= sbuf.st_size;
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332 | dumper->address += sbuf.st_size;
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333 | return;
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334 | }
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335 | }
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336 | if (fseek(stdin, dumper->pub.dump_skip, SEEK_SET)) {
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337 | bb_simple_perror_msg_and_die(fname);
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338 | }
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339 | dumper->address += dumper->pub.dump_skip;
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340 | dumper->savaddress = dumper->address;
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341 | dumper->pub.dump_skip = 0;
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342 | }
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343 |
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344 | static NOINLINE int next(priv_dumper_t *dumper)
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345 | {
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346 | int statok;
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347 |
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348 | for (;;) {
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349 | if (*dumper->argv) {
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350 | dumper->next__done = statok = 1;
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351 | if (!(freopen(*dumper->argv, "r", stdin))) {
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352 | bb_simple_perror_msg(*dumper->argv);
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353 | dumper->exitval = 1;
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354 | ++dumper->argv;
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355 | continue;
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356 | }
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357 | } else {
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358 | if (dumper->next__done)
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359 | return 0; /* no next file */
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360 | dumper->next__done = 1;
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361 | statok = 0;
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362 | }
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363 | if (dumper->pub.dump_skip)
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364 | do_skip(dumper, statok ? *dumper->argv : "stdin", statok);
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365 | if (*dumper->argv)
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366 | ++dumper->argv;
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367 | if (!dumper->pub.dump_skip)
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368 | return 1;
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369 | }
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370 | /* NOTREACHED */
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371 | }
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372 |
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373 | static unsigned char *get(priv_dumper_t *dumper)
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374 | {
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375 | int n;
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376 | int need, nread;
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377 | int blocksize = dumper->blocksize;
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378 |
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379 | if (!dumper->get__curp) {
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380 | dumper->address = (off_t)0; /*DBU:[dave@cray.com] initialize,initialize..*/
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381 | dumper->get__curp = xmalloc(blocksize);
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382 | dumper->get__savp = xzalloc(blocksize); /* need to be initialized */
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383 | } else {
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384 | unsigned char *tmp = dumper->get__curp;
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385 | dumper->get__curp = dumper->get__savp;
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386 | dumper->get__savp = tmp;
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387 | dumper->savaddress += blocksize;
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388 | dumper->address = dumper->savaddress;
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389 | }
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390 | need = blocksize;
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391 | nread = 0;
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392 | while (1) {
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393 | /*
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394 | * if read the right number of bytes, or at EOF for one file,
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395 | * and no other files are available, zero-pad the rest of the
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396 | * block and set the end flag.
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397 | */
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398 | if (!dumper->pub.dump_length || (dumper->get__ateof && !next(dumper))) {
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399 | if (need == blocksize) {
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400 | return NULL;
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401 | }
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402 | if (dumper->pub.dump_vflag != ALL && !memcmp(dumper->get__curp, dumper->get__savp, nread)) {
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403 | if (dumper->pub.dump_vflag != DUP) {
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404 | puts("*");
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405 | }
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406 | return NULL;
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407 | }
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408 | memset(dumper->get__curp + nread, 0, need);
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409 | dumper->eaddress = dumper->address + nread;
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410 | return dumper->get__curp;
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411 | }
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412 | n = fread(dumper->get__curp + nread, sizeof(unsigned char),
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413 | dumper->pub.dump_length == -1 ? need : MIN(dumper->pub.dump_length, need), stdin);
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414 | if (!n) {
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415 | if (ferror(stdin)) {
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416 | bb_simple_perror_msg(dumper->argv[-1]);
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417 | }
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418 | dumper->get__ateof = 1;
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419 | continue;
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420 | }
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421 | dumper->get__ateof = 0;
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422 | if (dumper->pub.dump_length != -1) {
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423 | dumper->pub.dump_length -= n;
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424 | }
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425 | need -= n;
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426 | if (!need) {
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427 | if (dumper->pub.dump_vflag == ALL || dumper->pub.dump_vflag == FIRST
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428 | || memcmp(dumper->get__curp, dumper->get__savp, blocksize)
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429 | ) {
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430 | if (dumper->pub.dump_vflag == DUP || dumper->pub.dump_vflag == FIRST) {
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431 | dumper->pub.dump_vflag = WAIT;
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432 | }
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433 | return dumper->get__curp;
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434 | }
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435 | if (dumper->pub.dump_vflag == WAIT) {
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436 | puts("*");
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437 | }
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438 | dumper->pub.dump_vflag = DUP;
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439 | dumper->savaddress += blocksize;
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440 | dumper->address = dumper->savaddress;
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441 | need = blocksize;
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442 | nread = 0;
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443 | } else {
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444 | nread += n;
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445 | }
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446 | }
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447 | }
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448 |
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449 | static void bpad(PR *pr)
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450 | {
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---|
451 | char *p1, *p2;
|
---|
452 |
|
---|
453 | /*
|
---|
454 | * remove all conversion flags; '-' is the only one valid
|
---|
455 | * with %s, and it's not useful here.
|
---|
456 | */
|
---|
457 | pr->flags = F_BPAD;
|
---|
458 | *pr->cchar = 's';
|
---|
459 | for (p1 = pr->fmt; *p1 != '%'; ++p1)
|
---|
460 | continue;
|
---|
461 | for (p2 = ++p1; *p1 && strchr(" -0+#", *p1); ++p1)
|
---|
462 | if (pr->nospace)
|
---|
463 | pr->nospace--;
|
---|
464 | while ((*p2++ = *p1++) != 0)
|
---|
465 | continue;
|
---|
466 | }
|
---|
467 |
|
---|
468 | static const char conv_str[] ALIGN1 =
|
---|
469 | "\0\\0\0"
|
---|
470 | "\007\\a\0" /* \a */
|
---|
471 | "\b\\b\0"
|
---|
472 | "\f\\b\0"
|
---|
473 | "\n\\n\0"
|
---|
474 | "\r\\r\0"
|
---|
475 | "\t\\t\0"
|
---|
476 | "\v\\v\0"
|
---|
477 | ;
|
---|
478 |
|
---|
479 |
|
---|
480 | static void conv_c(PR *pr, unsigned char *p)
|
---|
481 | {
|
---|
482 | const char *str = conv_str;
|
---|
483 | char buf[10];
|
---|
484 |
|
---|
485 | do {
|
---|
486 | if (*p == *str) {
|
---|
487 | ++str;
|
---|
488 | goto strpr;
|
---|
489 | }
|
---|
490 | str += 4;
|
---|
491 | } while (*str);
|
---|
492 |
|
---|
493 | if (isprint_asciionly(*p)) {
|
---|
494 | *pr->cchar = 'c';
|
---|
495 | printf(pr->fmt, *p);
|
---|
496 | } else {
|
---|
497 | sprintf(buf, "%03o", (int) *p);
|
---|
498 | str = buf;
|
---|
499 | strpr:
|
---|
500 | *pr->cchar = 's';
|
---|
501 | printf(pr->fmt, str);
|
---|
502 | }
|
---|
503 | }
|
---|
504 |
|
---|
505 | static void conv_u(PR *pr, unsigned char *p)
|
---|
506 | {
|
---|
507 | static const char list[] ALIGN1 =
|
---|
508 | "nul\0soh\0stx\0etx\0eot\0enq\0ack\0bel\0"
|
---|
509 | "bs\0_ht\0_lf\0_vt\0_ff\0_cr\0_so\0_si\0_"
|
---|
510 | "dle\0dcl\0dc2\0dc3\0dc4\0nak\0syn\0etb\0"
|
---|
511 | "can\0em\0_sub\0esc\0fs\0_gs\0_rs\0_us";
|
---|
512 |
|
---|
513 | /* od used nl, not lf */
|
---|
514 | if (*p <= 0x1f) {
|
---|
515 | *pr->cchar = 's';
|
---|
516 | printf(pr->fmt, list + (4 * (int)*p));
|
---|
517 | } else if (*p == 0x7f) {
|
---|
518 | *pr->cchar = 's';
|
---|
519 | printf(pr->fmt, "del");
|
---|
520 | } else if (*p < 0x7f) { /* isprint() */
|
---|
521 | *pr->cchar = 'c';
|
---|
522 | printf(pr->fmt, *p);
|
---|
523 | } else {
|
---|
524 | *pr->cchar = 'x';
|
---|
525 | printf(pr->fmt, (int) *p);
|
---|
526 | }
|
---|
527 | }
|
---|
528 |
|
---|
529 | static void display(priv_dumper_t* dumper)
|
---|
530 | {
|
---|
531 | FS *fs;
|
---|
532 | FU *fu;
|
---|
533 | PR *pr;
|
---|
534 | int cnt;
|
---|
535 | unsigned char *bp, *savebp;
|
---|
536 | off_t saveaddress;
|
---|
537 | unsigned char savech = '\0';
|
---|
538 |
|
---|
539 | while ((bp = get(dumper)) != NULL) {
|
---|
540 | fs = dumper->pub.fshead;
|
---|
541 | savebp = bp;
|
---|
542 | saveaddress = dumper->address;
|
---|
543 | for (; fs; fs = fs->nextfs, bp = savebp, dumper->address = saveaddress) {
|
---|
544 | for (fu = fs->nextfu; fu; fu = fu->nextfu) {
|
---|
545 | if (fu->flags & F_IGNORE) {
|
---|
546 | break;
|
---|
547 | }
|
---|
548 | for (cnt = fu->reps; cnt; --cnt) {
|
---|
549 | for (pr = fu->nextpr; pr; dumper->address += pr->bcnt,
|
---|
550 | bp += pr->bcnt, pr = pr->nextpr) {
|
---|
551 | if (dumper->eaddress && dumper->address >= dumper->eaddress
|
---|
552 | && !(pr->flags & (F_TEXT | F_BPAD))
|
---|
553 | ) {
|
---|
554 | bpad(pr);
|
---|
555 | }
|
---|
556 | if (cnt == 1 && pr->nospace) {
|
---|
557 | savech = *pr->nospace;
|
---|
558 | *pr->nospace = '\0';
|
---|
559 | }
|
---|
560 | /* PRINT; */
|
---|
561 | switch (pr->flags) {
|
---|
562 | case F_ADDRESS:
|
---|
563 | printf(pr->fmt, (unsigned) dumper->address);
|
---|
564 | break;
|
---|
565 | case F_BPAD:
|
---|
566 | printf(pr->fmt, "");
|
---|
567 | break;
|
---|
568 | case F_C:
|
---|
569 | conv_c(pr, bp);
|
---|
570 | break;
|
---|
571 | case F_CHAR:
|
---|
572 | printf(pr->fmt, *bp);
|
---|
573 | break;
|
---|
574 | case F_DBL: {
|
---|
575 | double dval;
|
---|
576 | float fval;
|
---|
577 |
|
---|
578 | switch (pr->bcnt) {
|
---|
579 | case 4:
|
---|
580 | memcpy(&fval, bp, sizeof(fval));
|
---|
581 | printf(pr->fmt, fval);
|
---|
582 | break;
|
---|
583 | case 8:
|
---|
584 | memcpy(&dval, bp, sizeof(dval));
|
---|
585 | printf(pr->fmt, dval);
|
---|
586 | break;
|
---|
587 | }
|
---|
588 | break;
|
---|
589 | }
|
---|
590 | case F_INT: {
|
---|
591 | int ival;
|
---|
592 | short sval;
|
---|
593 |
|
---|
594 | switch (pr->bcnt) {
|
---|
595 | case 1:
|
---|
596 | printf(pr->fmt, (int) *bp);
|
---|
597 | break;
|
---|
598 | case 2:
|
---|
599 | memcpy(&sval, bp, sizeof(sval));
|
---|
600 | printf(pr->fmt, (int) sval);
|
---|
601 | break;
|
---|
602 | case 4:
|
---|
603 | memcpy(&ival, bp, sizeof(ival));
|
---|
604 | printf(pr->fmt, ival);
|
---|
605 | break;
|
---|
606 | }
|
---|
607 | break;
|
---|
608 | }
|
---|
609 | case F_P:
|
---|
610 | printf(pr->fmt, isprint_asciionly(*bp) ? *bp : '.');
|
---|
611 | break;
|
---|
612 | case F_STR:
|
---|
613 | printf(pr->fmt, (char *) bp);
|
---|
614 | break;
|
---|
615 | case F_TEXT:
|
---|
616 | printf(pr->fmt);
|
---|
617 | break;
|
---|
618 | case F_U:
|
---|
619 | conv_u(pr, bp);
|
---|
620 | break;
|
---|
621 | case F_UINT: {
|
---|
622 | unsigned ival;
|
---|
623 | unsigned short sval;
|
---|
624 |
|
---|
625 | switch (pr->bcnt) {
|
---|
626 | case 1:
|
---|
627 | printf(pr->fmt, (unsigned) *bp);
|
---|
628 | break;
|
---|
629 | case 2:
|
---|
630 | memcpy(&sval, bp, sizeof(sval));
|
---|
631 | printf(pr->fmt, (unsigned) sval);
|
---|
632 | break;
|
---|
633 | case 4:
|
---|
634 | memcpy(&ival, bp, sizeof(ival));
|
---|
635 | printf(pr->fmt, ival);
|
---|
636 | break;
|
---|
637 | }
|
---|
638 | break;
|
---|
639 | }
|
---|
640 | }
|
---|
641 | if (cnt == 1 && pr->nospace) {
|
---|
642 | *pr->nospace = savech;
|
---|
643 | }
|
---|
644 | }
|
---|
645 | }
|
---|
646 | }
|
---|
647 | }
|
---|
648 | }
|
---|
649 | if (dumper->endfu) {
|
---|
650 | /*
|
---|
651 | * if eaddress not set, error or file size was multiple
|
---|
652 | * of blocksize, and no partial block ever found.
|
---|
653 | */
|
---|
654 | if (!dumper->eaddress) {
|
---|
655 | if (!dumper->address) {
|
---|
656 | return;
|
---|
657 | }
|
---|
658 | dumper->eaddress = dumper->address;
|
---|
659 | }
|
---|
660 | for (pr = dumper->endfu->nextpr; pr; pr = pr->nextpr) {
|
---|
661 | switch (pr->flags) {
|
---|
662 | case F_ADDRESS:
|
---|
663 | printf(pr->fmt, (unsigned) dumper->eaddress);
|
---|
664 | break;
|
---|
665 | case F_TEXT:
|
---|
666 | printf(pr->fmt);
|
---|
667 | break;
|
---|
668 | }
|
---|
669 | }
|
---|
670 | }
|
---|
671 | }
|
---|
672 |
|
---|
673 | #define dumper ((priv_dumper_t*)pub_dumper)
|
---|
674 | int FAST_FUNC bb_dump_dump(dumper_t *pub_dumper, char **argv)
|
---|
675 | {
|
---|
676 | FS *tfs;
|
---|
677 | int blocksize;
|
---|
678 |
|
---|
679 | /* figure out the data block bb_dump_size */
|
---|
680 | blocksize = 0;
|
---|
681 | tfs = dumper->pub.fshead;
|
---|
682 | while (tfs) {
|
---|
683 | tfs->bcnt = bb_dump_size(tfs);
|
---|
684 | if (blocksize < tfs->bcnt) {
|
---|
685 | blocksize = tfs->bcnt;
|
---|
686 | }
|
---|
687 | tfs = tfs->nextfs;
|
---|
688 | }
|
---|
689 | dumper->blocksize = blocksize;
|
---|
690 |
|
---|
691 | /* rewrite the rules, do syntax checking */
|
---|
692 | for (tfs = dumper->pub.fshead; tfs; tfs = tfs->nextfs) {
|
---|
693 | rewrite(dumper, tfs);
|
---|
694 | }
|
---|
695 |
|
---|
696 | dumper->argv = argv;
|
---|
697 | display(dumper);
|
---|
698 |
|
---|
699 | return dumper->exitval;
|
---|
700 | }
|
---|
701 |
|
---|
702 | void FAST_FUNC bb_dump_add(dumper_t* pub_dumper, const char *fmt)
|
---|
703 | {
|
---|
704 | const char *p;
|
---|
705 | char *p1;
|
---|
706 | char *p2;
|
---|
707 | FS *tfs;
|
---|
708 | FU *tfu, **nextfupp;
|
---|
709 | const char *savep;
|
---|
710 |
|
---|
711 | /* start new linked list of format units */
|
---|
712 | tfs = xzalloc(sizeof(FS)); /*DBU:[dave@cray.com] start out NULL */
|
---|
713 | if (!dumper->pub.fshead) {
|
---|
714 | dumper->pub.fshead = tfs;
|
---|
715 | } else {
|
---|
716 | FS *fslast = dumper->pub.fshead;
|
---|
717 | while (fslast->nextfs)
|
---|
718 | fslast = fslast->nextfs;
|
---|
719 | fslast->nextfs = tfs;
|
---|
720 | }
|
---|
721 | nextfupp = &tfs->nextfu;
|
---|
722 |
|
---|
723 | /* take the format string and break it up into format units */
|
---|
724 | p = fmt;
|
---|
725 | for (;;) {
|
---|
726 | p = skip_whitespace(p);
|
---|
727 | if (!*p) {
|
---|
728 | break;
|
---|
729 | }
|
---|
730 |
|
---|
731 | /* allocate a new format unit and link it in */
|
---|
732 | /* NOSTRICT */
|
---|
733 | /* DBU:[dave@cray.com] zalloc so that forward pointers start out NULL */
|
---|
734 | tfu = xzalloc(sizeof(FU));
|
---|
735 | *nextfupp = tfu;
|
---|
736 | nextfupp = &tfu->nextfu;
|
---|
737 | tfu->reps = 1;
|
---|
738 |
|
---|
739 | /* if leading digit, repetition count */
|
---|
740 | if (isdigit(*p)) {
|
---|
741 | for (savep = p; isdigit(*p); ++p)
|
---|
742 | continue;
|
---|
743 | if (!isspace(*p) && *p != '/') {
|
---|
744 | bb_error_msg_and_die("bad format {%s}", fmt);
|
---|
745 | }
|
---|
746 | /* may overwrite either white space or slash */
|
---|
747 | tfu->reps = atoi(savep);
|
---|
748 | tfu->flags = F_SETREP;
|
---|
749 | /* skip trailing white space */
|
---|
750 | p = skip_whitespace(++p);
|
---|
751 | }
|
---|
752 |
|
---|
753 | /* skip slash and trailing white space */
|
---|
754 | if (*p == '/') {
|
---|
755 | p = skip_whitespace(++p);
|
---|
756 | }
|
---|
757 |
|
---|
758 | /* byte count */
|
---|
759 | if (isdigit(*p)) {
|
---|
760 | // TODO: use bb_strtou
|
---|
761 | savep = p;
|
---|
762 | while (isdigit(*++p))
|
---|
763 | continue;
|
---|
764 | if (!isspace(*p)) {
|
---|
765 | bb_error_msg_and_die("bad format {%s}", fmt);
|
---|
766 | }
|
---|
767 | tfu->bcnt = atoi(savep);
|
---|
768 | /* skip trailing white space */
|
---|
769 | p = skip_whitespace(++p);
|
---|
770 | }
|
---|
771 |
|
---|
772 | /* format */
|
---|
773 | if (*p != '"') {
|
---|
774 | bb_error_msg_and_die("bad format {%s}", fmt);
|
---|
775 | }
|
---|
776 | for (savep = ++p; *p != '"';) {
|
---|
777 | if (*p++ == 0) {
|
---|
778 | bb_error_msg_and_die("bad format {%s}", fmt);
|
---|
779 | }
|
---|
780 | }
|
---|
781 | tfu->fmt = xstrndup(savep, p - savep);
|
---|
782 | /* escape(tfu->fmt); */
|
---|
783 |
|
---|
784 | p1 = tfu->fmt;
|
---|
785 |
|
---|
786 | /* alphabetic escape sequences have to be done in place */
|
---|
787 | for (p2 = p1;; ++p1, ++p2) {
|
---|
788 | if (!*p1) {
|
---|
789 | *p2 = *p1;
|
---|
790 | break;
|
---|
791 | }
|
---|
792 | if (*p1 == '\\') {
|
---|
793 | const char *cs = conv_str + 4;
|
---|
794 | ++p1;
|
---|
795 | *p2 = *p1;
|
---|
796 | do {
|
---|
797 | if (*p1 == cs[2]) {
|
---|
798 | *p2 = cs[0];
|
---|
799 | break;
|
---|
800 | }
|
---|
801 | cs += 4;
|
---|
802 | } while (*cs);
|
---|
803 | }
|
---|
804 | }
|
---|
805 |
|
---|
806 | p++;
|
---|
807 | }
|
---|
808 | }
|
---|
809 |
|
---|
810 | /*
|
---|
811 | * Copyright (c) 1989 The Regents of the University of California.
|
---|
812 | * All rights reserved.
|
---|
813 | *
|
---|
814 | * Redistribution and use in source and binary forms, with or without
|
---|
815 | * modification, are permitted provided that the following conditions
|
---|
816 | * are met:
|
---|
817 | * 1. Redistributions of source code must retain the above copyright
|
---|
818 | * notice, this list of conditions and the following disclaimer.
|
---|
819 | * 2. Redistributions in binary form must reproduce the above copyright
|
---|
820 | * notice, this list of conditions and the following disclaimer in the
|
---|
821 | * documentation and/or other materials provided with the distribution.
|
---|
822 | * 3. Neither the name of the University nor the names of its contributors
|
---|
823 | * may be used to endorse or promote products derived from this software
|
---|
824 | * without specific prior written permission.
|
---|
825 | *
|
---|
826 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
---|
827 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
---|
828 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
---|
829 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
---|
830 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
---|
831 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
---|
832 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
---|
833 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
---|
834 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
---|
835 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
---|
836 | * SUCH DAMAGE.
|
---|
837 | */
|
---|