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1 /* Copyright (C) 1985, 1993, 1994 Free Software Foundation
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2 This file is part of GNU Emacs.
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3
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4 GNU Emacs is free software; you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 2, or (at your option)
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7 any later version.
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8
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9 GNU Emacs is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with GNU Emacs; see the file COPYING. If not, write to
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16 the Free the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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17 Boston, MA 02111-1307, USA. */
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18
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19 /* Synched up with: FSF 19.28. */
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20
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21 /* cvtmail:
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22 * Program to convert oldstyle goslings emacs mail directories into
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23 * gnu-rmail format. Program expects a directory called Messages to
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24 * exist in your home directory, containing individual mail messages in
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25 * separate files in the standard gosling emacs mail reader format.
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26 *
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27 * Program takes one argument: an output file. THis file will contain
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28 * all the messages in Messages directory, in berkeley mail format.
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29 * If no output file is mentioned, messages are put in ~/OMAIL.
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30 *
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31 * In order to get rmail to read the messages, the resulting file must
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32 * be mv'ed to ~/mbox, and then have rmail invoked on them.
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33 *
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34 * Author: Larry Kolodney, 1985
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35 */
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36
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37
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38 #include <../src/config.h>
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39
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40 #include <stdio.h>
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41 #include <string.h>
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42
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43 #if __STDC__ || defined(STDC_HEADERS)
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44 # include <stdlib.h>
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45 #else
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46 char *malloc ();
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47 char *getenv ();
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48 #endif
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49 static void *xmalloc (unsigned int);
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50 static void *xrealloc (char *ptr, unsigned int);
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51 static void skip_to_lf (FILE *stream);
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52 static void fatal (CONST char *s1, CONST char *s2);
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53 static void error (CONST char *s1, CONST char *s2);
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54
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55 int
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56 main (int argc, char *argv[])
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57 {
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58 char *hd;
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59 char *md;
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60 char *mdd;
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61 char *mfile;
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62 char *cf;
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63 int cflen;
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64 FILE *mddf;
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65 FILE *mfilef;
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66 FILE *cff;
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67 char pre[10];
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68 char name[14];
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69 int c;
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70
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71 hd = (char *) getenv ("HOME");
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72
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73 md = (char *) xmalloc (strlen (hd) + 10);
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74 strcpy (md, hd);
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75 strcat (md, "/Messages");
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76
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77 mdd = (char *) xmalloc (strlen (md) + 11);
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78 strcpy (mdd, md);
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79 strcat (mdd, "/Directory");
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80
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81 cflen = 100;
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82 cf = (char *) xmalloc (cflen);
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83
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84 mddf = fopen (mdd, "r");
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85 if (argc > 1)
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86 mfilef = fopen (argv[1], "w");
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87 else
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88 {
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89 mfile = (char *) xmalloc (strlen (hd) + 7);
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90 strcpy (mfile, hd);
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91 strcat (mfile, "/OMAIL");
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92 mfilef = fopen (mfile, "w");
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93 }
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94 skip_to_lf (mddf);
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95 while (fscanf (mddf, "%4c%14[0123456789]", pre, name) != EOF)
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96 {
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97 int comp_len = strlen (md) + strlen (name) + 2;
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98 if (cflen < comp_len)
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99 {
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100 cflen = strlen (md) + strlen (name) + 2;
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101 cf = (char *) xrealloc (cf, cflen);
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102 }
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103 strcpy (cf, md);
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104 strcat (cf,"/");
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105 strcat (cf, name);
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106 cff = fopen (cf, "r");
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107 while ((c = getc(cff)) != EOF)
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108 putc (c, mfilef);
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109 putc ('\n', mfilef);
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110 skip_to_lf (mddf);
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111 fclose (cff);
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112 }
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113 fclose (mddf);
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114 fclose (mfilef);
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115 return 0;
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116 }
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117
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118 static void
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119 skip_to_lf (stream)
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120 FILE *stream;
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121 {
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122 register int c;
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123 while ((c = getc(stream)) != '\n')
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124 ;
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125 }
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126
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127 static void *
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128 xmalloc (size)
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129 unsigned size;
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130 {
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131 char *result = (char *) malloc (size);
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132 if (!result)
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133 fatal ("virtual memory exhausted", 0);
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134 return result;
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135 }
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136
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137 static void *
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138 xrealloc (ptr, size)
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139 char *ptr;
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140 unsigned size;
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141 {
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142 char *result = (char *) realloc (ptr, size);
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143 if (!result)
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144 fatal ("virtual memory exhausted", 0);
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145 return result;
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146 }
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147
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148 /* Print error message and exit. */
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149
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150 static void
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151 fatal (CONST char *s1, CONST char *s2)
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152 {
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153 error (s1, s2);
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154 exit (1);
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155 }
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156
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157 static void
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158 error (CONST char *s1, CONST char *s2)
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159 {
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160 fprintf (stderr, "cvtmail: ");
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161 fprintf (stderr, s1, s2);
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162 fprintf (stderr, "\n");
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163 }
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