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0
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1 #ifndef SPOP
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2 /* sbboards.c - MH style mailer to write to a ZOTnet BBoard */
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3 #else SPOP
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4 /* spop.c - MH style mailer to write to a POP subscriber */
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5 #endif SPOP
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6 #ifndef lint
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12
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7 static char ident[] = "@(#)$Id: sbboards.c,v 1.1.1.1 2005/04/18 14:46:07 kono Exp $";
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0
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8 #endif lint
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9
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10 #ifndef SPOP
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11
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12 /* This program acts like the MMDF ch_bboards channel: it does local
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13 delivery to a ZOTnet BBoard and/or addition re-distribution to other
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14 recipients of the BBoard. This program can function both as a SendMail
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15 mailer and an MH .mh_receive file, depending on whether SENDMTS or
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16 MHMTS is set. Currently, the MHMTS version of this program does not do
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17 re-distribution.
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18
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19 This program should be used ONLY if you have "bboards on" set in your
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20 MH configuration, and if you have "mts sendmail" or "mts mh" set as well.
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21 */
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22
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23 #else SPOP
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24
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25 /* This program acts like the MMDF-II ch_pop channel: it does local
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26 delivery for non-local users. These users are known as POP subscribers
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27 and use the Post Office Protocol with a POP server in order to access
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28 their maildrop.
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29 */
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30
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31 #endif SPOP
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32
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33 #undef DISTRIBUTE
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34 #ifdef SENDMTS
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35 #ifndef SPOP
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36 #define DISTRIBUTE
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37 #endif not SPOP
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38 #endif SENDMTS
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39
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40 #include "../h/mh.h"
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41 #ifndef SPOP
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42 #include "../h/addrsbr.h"
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43 #endif not SPOP
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44 #include "../h/dropsbr.h"
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45 #include "../zotnet/bboards.h"
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46 #include "../zotnet/tws.h"
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47 #include <stdio.h>
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48 #include "../zotnet/mts.h"
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49 #include <pwd.h>
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50 #ifndef SYS5
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51 #include <sysexits.h>
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52 #else SYS5
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53 #define EX_CANTCREAT 1
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54 #define EX_IOERR 1
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55 #define EX_NOINPUT 1
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56 #define EX_NOUSER 1
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57 #define EX_OK 0
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58 #define EX_OSERR 1
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59 #define EX_OSFILE 1
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60 #define EX_UNAVAILABLE 1
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61 #define EX_USAGE 1
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62 #endif SYS5
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63 #ifdef DISTRIBUTE
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64 #include "../mts/sendmail/smail.h"
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65 #endif DISTRIBUTE
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66 #ifdef LOCALE
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67 #include <locale.h>
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68 #endif
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69 #ifdef linux
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70 #include <sys/types.h>
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71 #endif
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72 #if defined(UNISTD) && !defined(sgi)
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73 #include <unistd.h>
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74 #endif
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75
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76 #define NBB 100
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77
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78 #ifndef SPOP
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79 #define ENTITY "bboard"
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80 #else SPOP
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81 #define ENTITY "subscriber"
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82 #endif SPOP
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83
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84 /* */
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85
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86 static int bb_fderr;
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87
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88 static int bb_uid;
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89 static int bb_gid;
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90
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91 static int dst_rcpt ();
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92
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93
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94 #ifndef SPOP
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95 static char bb_from[BUFSIZ];
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96 static char bb_head[BUFSIZ];
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97 static char bb_home[BUFSIZ];
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98 static char bb_time[BUFSIZ];
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99 #ifdef DISTRIBUTE
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100 static char bb_rept[BUFSIZ];
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101 #endif DISTRIBUTE
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102 #else SPOP
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103 #define bb_head NULLCP
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104 #endif SPOP
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105
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106 static struct bboard *bb[NBB];
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107
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108 #if defined(UNISTD) && !defined(sgi)
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109 #include <unistd.h>
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110 #else
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111 off_t lseek ();
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112 #endif
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113
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114 #ifndef __STDC__
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115 #ifdef SYS5
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116 struct passwd *getpwnam ();
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117 #endif /* SYS5 */
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118 #endif
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119
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120 #ifndef SPOP
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121 static int mbx_init();
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122 #endif
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123 #ifdef DISTRIBUTE
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124 static int distribute(), notify(), encap(),
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125 dst_init(), dst_text(),
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126 dst_end(), dst_lose(), dst_adrs();
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127 #endif
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128
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129 /* hack */
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130 #define adios my_adios
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131 static localmail(), arginit();
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132 static int lose(), copyfile();
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133 static void adios();
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134 /* */
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135
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136 /* ARGSUSED */
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137
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138 main (argc, argv, envp)
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139 int argc;
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140 char **argv,
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141 **envp;
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142 {
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143 int fd;
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144 char tmpfil[BUFSIZ];
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145
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146 #ifdef LOCALE
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147 setlocale(LC_ALL, "");
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148 #endif
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149 #ifdef JAPAN
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150 ml_init();
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151 #endif /* JAPAN */
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152 #ifdef MHMTS
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153 if (argc != 5)
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154 adios (EX_USAGE, NULL, "you lose really big");
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155 #endif MHMTS
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156 arginit (argv);
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157
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158 fflush (stdout);
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159 discard (stdout); /* XXX: reference discard to help loader */
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160
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161 fd = copyfile (fileno (stdin), tmpfil);
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162 (void) unlink (tmpfil);
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163
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164 localmail (fd);
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165 #ifdef DISTRIBUTE
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166 distribute (fd);
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167 notify (fd);
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168 #endif DISTRIBUTE
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169
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170 exit (EX_OK);
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171 }
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172
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173 /* */
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174
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175 static localmail (fd)
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176 int fd;
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177 {
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178 int i,
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179 md;
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180 register struct bboard *bp;
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181
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182 for (i = 0; bp = bb[i]; i++)
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183 if (bp -> bb_file && *bp -> bb_file) {
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184 (void) lseek (fd, (off_t)0, 0);
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185 #ifndef SPOP
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186 if ((md = mbx_open (bp -> bb_file, bb_uid, bb_gid, BBMODE))
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187 #else SPOP
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188 if ((md = mbx_open (bp -> bb_file, bb_uid, bb_gid, POMODE))
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189 #endif SPOP
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190 == NOTOK) {
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191 (void) lose ("unable to open %s", bp -> bb_file);
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192 continue;
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193 }
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194 #ifndef SPOP
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195 if (mbx_init (bp) != NOTOK)
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196 #endif not SPOP
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197 (void) mbx_copy (bp -> bb_file, md, fd, 1, bb_head, 0);
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198 (void) mbx_close (bp -> bb_file, md);
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199 }
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200 }
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201
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202 /* */
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203
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204 #ifndef SPOP
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205 static int mbx_init (bp)
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206 register struct bboard *bp;
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207 {
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208 int fd,
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209 clear;
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210 register struct bboard *ip;
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211 register FILE *fp;
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212
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213 if ((fd = mbx_Xopen (bp -> bb_info, bb_uid, bb_gid, BBMODE, &clear))
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214 == NOTOK)
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215 return lose ("unable to lock and open %s", bp -> bb_info);
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216 if ((fp = fdopen (fd, "w")) == NULL) {
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217 (void) mbx_close (bp -> bb_info, fd);
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218 return lose ("unable to fdopen %s", bp -> bb_info);
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219 }
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220
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221 if ((ip = getbbnam (bp -> bb_name)) == NULL) {
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222 (void) lkfclose (fp, bp -> bb_info);
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223 return lose ("unable to get information on BBoard %s", bp -> bb_name);
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224 }
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225 (void) strcpy (bb_time, dtimenow ());
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226 (void) sprintf (bb_head, "BBoard-ID: %d\nBB-Posted: %s\n",
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227 bp -> bb_maxima = ++ip -> bb_maxima, bb_time);
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228
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229 fprintf (fp, "%d\n%s\n", bp -> bb_maxima, bb_time);
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230 (void) lkfclose (fp, bp -> bb_info);
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231
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232 return OK;
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233 }
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234 #endif not SPOP
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235
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236 /* */
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237
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238 #ifdef DISTRIBUTE
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239 static distribute (fd)
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240 int fd;
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241 {
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242 int i;
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243 register struct bboard *bp;
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244
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245 for (i = 0; bp = bb[i]; i++)
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246 if (bp -> bb_dist && *bp -> bb_dist)
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247 break;
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248 if (bp == NULL)
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249 return;
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250
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251 if (dst_init () == NOTOK) {
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252 dst_lose ();
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253 return;
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254 }
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255 for (i = 0; bp = bb[i]; i++)
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256 if (bp -> bb_dist && *bp -> bb_dist)
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257 if (dst_adrs (bp) == NOTOK) {
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258 dst_lose ();
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259 return;
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260 }
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261 if (dst_text (fd) == NOTOK || dst_end () == NOTOK)
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262 dst_lose ();
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263 }
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264
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265 /* */
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266
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267 static int dst_init ()
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268 {
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269 int retval;
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270
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271 if (rp_isbad (retval = sm_init (NULLCP, NULLCP, 0, 0, 0, 0, 0))
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272 || rp_isbad (retval = sm_winit (S_MAIL, bb_from)))
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273 return lose ("problem initializing SendMail; %s",
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274 rp_string (retval));
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275
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276 return OK;
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277 }
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278
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279 /* */
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280
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281 static int dst_adrs (bp)
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282 register struct bboard *bp;
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283 {
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284 if (getbbdist (bp, dst_rcpt))
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285 return lose ("getbbdist failed: %s", getbberr ());
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286
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287 return OK;
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288 }
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289
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290 /* */
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291
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292 static int dst_rcpt (mbox, host)
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293 register char *mbox,
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294 *host;
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295 {
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296 int retval;
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297
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298 switch (retval = sm_wadr (mbox, host, NULLCP)) {
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299 case RP_OK:
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300 return OK;
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301
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302 case RP_NO:
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303 case RP_USER:
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304 (void) lose ("%s@%s: loses; %s", mbox, host, rp_string (retval));
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305 return OK; /* fail-soft */
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306
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307 default:
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308 return lose ("%s@%s: unexpected response; %s",
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309 mbox, host, rp_string (retval));
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310 }
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311 }
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312
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313 /* */
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314
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315 static int dst_text (fd)
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316 int fd;
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317 {
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318 int i,
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319 retval;
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320 char buffer[BUFSIZ];
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321
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322 if (rp_isbad (retval = sm_waend ()))
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323 return lose ("problem ending addresses; %s", rp_string (retval));
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324
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325 (void) lseek (fd, (off_t)0, 0);
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326 while ((i = read (fd, buffer, sizeof buffer)) > 0)
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327 if (rp_isbad (retval = sm_wtxt (buffer, i)))
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328 return lose ("problem writing text; %s", rp_string (retval));
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329
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330 return (i != NOTOK ? OK : lose ("error reading from file"));
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331 }
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332
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333 /* */
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334
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335 static int dst_end ()
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336 {
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337 int retval;
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338
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339 switch (retval = sm_wtend ()) {
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340 case RP_OK:
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341 (void) sm_end (OK);
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342 return OK;
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343
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344 case RP_NO:
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345 case RP_NDEL:
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346 return lose ("posting failed; %s", rp_string (retval));
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347
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348 default:
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349 return lose ("unexpected response; %s", rp_string (retval));
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350 }
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351 }
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352
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353 /* */
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354
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355 static dst_lose ()
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356 {
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357 (void) sm_end (NOTOK);
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358 }
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359
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360 /* */
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361
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362 /* VARARGS1 */
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363
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364 static int lose (fmt, a, b, c, d)
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365 char *fmt,
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366 *a,
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367 *b,
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368 *c,
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369 *d;
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370 {
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371 int fd,
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372 i;
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373 char *bp,
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374 buffer[BUFSIZ];
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375
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376 if (bb_fderr == NOTOK) {
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377 if ((fd = open ("/dev/null", 0)) == NOTOK)
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378 adios (EX_OSERR, "/dev/null", "unable to open");
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379 bb_fderr = copyfile (fd, bb_rept);
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380 }
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381
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382 (void) sprintf (bp = buffer, fmt, a, b, c, d);
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383 bp += strlen (bp);
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384 bp += strlen (strcpy(bp, "\n"));
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385 i = bp - buffer;
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386 if (write (bb_fderr, buffer, i) != i)
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387 adios (EX_IOERR, bb_rept, "error writing");
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388
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389 return NOTOK;
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390 }
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391
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392 /* */
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393
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394 static notify (fd)
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395 int fd;
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396 {
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397 int i;
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398 char buffer[BUFSIZ];
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399
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400 if (bb_fderr == NOTOK)
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401 return;
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402
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403 if (rp_isbad (sm_init (NULLCP, NULLCP, 0, 0, 0, 0, 0))
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404 || rp_isbad (sm_winit (S_MAIL, bb_from)))
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405 goto sm_err;
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406
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407 switch (sm_wadr (bb_from, NULLCP, NULLCP)) {
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408 case RP_OK:
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409 for (i = 0; bb[i]; i++) {
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410 (void) sprintf (buffer, "local-%s-request", bb[i] -> bb_name);
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411 (void) sm_wadr (buffer, LocalName (), NULLCP);
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412 }
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413 break;
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414
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415 default:
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416 goto sm_err;
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417 }
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418
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419 if (rp_isbad (sm_waend ()))
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420 goto sm_err;
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421
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422 (void) sprintf (buffer,
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423 "Date: %s\nFrom: %s\nTo: %s\nSubject: BBoards Failure\n\n",
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424 dtimenow (), bb_from, bb_from);
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425 if (rp_isbad (sm_wtxt (buffer, strlen (buffer))))
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426 goto sm_err;
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427
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428 for (i = 0; bb[i]; i++) {
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429 (void) sprintf (buffer, "BBoard %s\n", bb[i] -> bb_name);
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430 if (rp_isbad (sm_wtxt (buffer, strlen (buffer))))
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431 goto sm_err;
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432 }
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433
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434 (void) lseek (bb_fderr, (off_t)0, 0);
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435 while ((i = read (bb_fderr, buffer, sizeof buffer)) > 0)
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436 if (rp_isbad (sm_wtxt (buffer, i)))
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437 goto sm_err;
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438
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439 (void) strcpy (buffer, "\n------- Forwarded Message\n\n");
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440 if (rp_isbad (sm_wtxt (buffer, strlen (buffer))) || encap (fd) == NOTOK)
|
|
|
441 goto sm_err;
|
|
|
442 (void) strcpy (buffer, "\n------- End of Forwarded Message\n\n");
|
|
|
443 if (rp_isbad (sm_wtxt (buffer, strlen (buffer))))
|
|
|
444 goto sm_err;
|
|
|
445
|
|
|
446 switch (sm_wtend ()) {
|
|
|
447 case RP_OK:
|
|
|
448 (void) unlink (bb_rept);
|
|
|
449 (void) sm_end (OK);
|
|
|
450 return;
|
|
|
451
|
|
|
452 default:
|
|
|
453 sm_err: ;
|
|
|
454 adios (EX_UNAVAILABLE, NULLCP,
|
|
|
455 "failed and unable to post advisory, see %s for details",
|
|
|
456 bb_rept);
|
|
|
457 }
|
|
|
458 }
|
|
|
459
|
|
|
460 /* */
|
|
|
461
|
|
|
462 /* very similar to sbr/cpydgst.c */
|
|
|
463
|
|
|
464 #define S1 0
|
|
|
465 #define S2 1
|
|
|
466
|
|
|
467 #define output(c) if (bp >= dp) flush (), *bp++ = c; else *bp++ = c
|
|
|
468 #define flush() if ((j = bp - outbuf) \
|
|
|
469 && rp_isbad (sm_wtxt (outbuf, j))) \
|
|
|
470 return NOTOK; \
|
|
|
471 else \
|
|
|
472 bp = outbuf
|
|
|
473
|
|
|
474 static int encap (fd)
|
|
|
475 register int fd;
|
|
|
476 {
|
|
|
477 register int i,
|
|
|
478 state;
|
|
|
479 register char *cp,
|
|
|
480 *ep;
|
|
|
481 char buffer[BUFSIZ];
|
|
|
482 register int j;
|
|
|
483 register char *bp,
|
|
|
484 *dp;
|
|
|
485 char outbuf[BUFSIZ];
|
|
|
486
|
|
|
487 (void) lseek (fd, (off_t)0, 0);
|
|
|
488
|
|
|
489 dp = (bp = outbuf) + sizeof outbuf;
|
|
|
490 for (state = S1; (i = read (fd, buffer, sizeof buffer)) > 0;)
|
|
|
491 for (ep = (cp = buffer) + i; cp < ep; cp++) {
|
|
|
492 if (*cp == '\0')
|
|
|
493 continue;
|
|
|
494 switch (state) {
|
|
|
495 case S1:
|
|
|
496 if (*cp == '-') {
|
|
|
497 output ('-');
|
|
|
498 output (' ');
|
|
|
499 }
|
|
|
500 state = S2; /* fall */
|
|
|
501
|
|
|
502 case S2:
|
|
|
503 output (*cp);
|
|
|
504 if (*cp == '\n')
|
|
|
505 state = S1;
|
|
|
506 break;
|
|
|
507 }
|
|
|
508 }
|
|
|
509
|
|
|
510 if (i == NOTOK)
|
|
|
511 return NOTOK;
|
|
|
512 flush ();
|
|
|
513
|
|
|
514 return OK;
|
|
|
515 }
|
|
|
516 #endif DISTRIBUTE
|
|
|
517
|
|
|
518 /* */
|
|
|
519
|
|
|
520 #ifndef DISTRIBUTE
|
|
|
521 /* VARARGS1 */
|
|
|
522
|
|
|
523 static int lose (fmt, a, b, c, d)
|
|
|
524 char *fmt,
|
|
|
525 *a,
|
|
|
526 *b,
|
|
|
527 *c,
|
|
|
528 *d;
|
|
|
529 {
|
|
|
530 adios (EX_UNAVAILABLE, NULLCP, fmt, a, b, c, d);/* NOTREACHED */
|
|
|
531 }
|
|
|
532 #endif not DISTRIBUTE
|
|
|
533
|
|
|
534 /* */
|
|
|
535
|
|
|
536 static arginit (vec)
|
|
|
537 register char **vec;
|
|
|
538 {
|
|
|
539 register int i;
|
|
|
540 #ifdef MHMTS
|
|
|
541 register char *ap;
|
|
|
542 #endif MHMTS
|
|
|
543 char addr[BUFSIZ];
|
|
|
544 register struct bboard *bp;
|
|
|
545 register struct passwd *pw;
|
|
|
546
|
|
|
547 invo_name = r1bindex (*vec++, '/');
|
|
|
548 if (strlen(invo_name) > NAMESZ) {
|
|
|
549 fprintf(stderr, "%s: argv[0] too long\n", invo_name);
|
|
|
550 exit(1);
|
|
|
551 }
|
|
|
552 m_foil (NULLCP);
|
|
|
553 mts_init (invo_name);
|
|
|
554
|
|
|
555 #ifndef SPOP
|
|
|
556 if ((pw = getpwnam (BBOARDS)) == NULL)
|
|
|
557 adios (EX_OSFILE, NULLCP, "no entry for ~%s", BBOARDS);
|
|
|
558 #else SPOP
|
|
|
559 if ((pw = getpwnam (POPUID)) == NULL || !setpwinfo (pw, POPDB, 1))
|
|
|
560 adios (EX_OSFILE, NULLCP, "%s", pw ? getbberr () : "POP user-id unknown");
|
|
|
561 #endif SPOP
|
|
|
562
|
|
|
563 if (pw -> pw_uid != geteuid ())
|
|
|
564 #ifndef SPOP
|
|
|
565 adios (EX_OSERR, NULLCP, "not running setuid to %s", BBOARDS);
|
|
|
566 #else SPOP
|
|
|
567 adios (EX_OSERR, NULLCP, "not running setuid to %s", POPUID);
|
|
|
568 #endif SPOP
|
|
|
569
|
|
|
570 bb_uid = pw -> pw_uid;
|
|
|
571 bb_gid = pw -> pw_gid;
|
|
|
572 #ifndef SPOP
|
|
|
573 (void) strcpy (bb_from, adrsprintf (pw -> pw_name, LocalName ()));
|
|
|
574 (void) strcpy (bb_home, pw -> pw_dir);
|
|
|
575 #endif not SPOP
|
|
|
576
|
|
|
577 #ifdef MHMTS
|
|
|
578 vec += 3;
|
|
|
579 #endif MHMTS
|
|
|
580 if (*vec == NULL)
|
|
|
581 adios (EX_USAGE, NULLCP, "usage: %s %s [%s ...]",
|
|
|
582 invo_name, ENTITY, ENTITY);
|
|
|
583
|
|
|
584 for (i = 0; *vec; vec++) {
|
|
|
585 if (strlen(*vec) >= BUFSIZ / 4)
|
|
|
586 adios (NULLCP, "argument too long");
|
|
|
587 #ifdef MHMTS
|
|
|
588 if (ap = index (*vec, '.'))
|
|
|
589 *vec = ++ap;
|
|
|
590 #endif MHMTS
|
|
|
591 make_lower (addr, *vec);
|
|
|
592
|
|
|
593 if ((bp = getbbnam (addr)) == NULL
|
|
|
594 && (bp = getbbaka (addr)) == NULL)
|
|
|
595 adios (EX_NOUSER, NULLCP, "no such %s as %s", ENTITY, *vec);
|
|
|
596 if ((bb[i++] = getbbcpy (bp)) == NULL)
|
|
|
597 adios (EX_UNAVAILABLE, NULLCP, "insufficient memory on %s", *vec);
|
|
|
598
|
|
|
599 if (i >= NBB - 1)
|
|
|
600 adios (EX_USAGE, NULLCP, "too many %ss, starting with %s",
|
|
|
601 ENTITY, *vec);
|
|
|
602 }
|
|
|
603 bb[i] = NULL;
|
|
|
604
|
|
|
605 (void) umask (0022);
|
|
|
606
|
|
|
607 bb_fderr = NOTOK;
|
|
|
608 }
|
|
|
609
|
|
|
610 /* */
|
|
|
611
|
|
|
612 static int copyfile (qd, tmpfil)
|
|
|
613 int qd;
|
|
|
614 register char *tmpfil;
|
|
|
615 {
|
|
|
616 int i,
|
|
|
617 fd;
|
|
|
618 char buffer[BUFSIZ];
|
|
|
619
|
|
|
620 (void) strcpy (tmpfil, m_tmpfil (invo_name));
|
|
|
621 if ((fd = creat (tmpfil, 0600)) == NOTOK)
|
|
|
622 adios (EX_CANTCREAT, tmpfil, "unable to create");
|
|
|
623 (void) close (fd);
|
|
|
624 if ((fd = open (tmpfil, 2)) == NOTOK)
|
|
|
625 adios (EX_NOINPUT, tmpfil, "unable to re-open");
|
|
|
626
|
|
|
627 (void) lseek (qd, (off_t)0, 0);
|
|
|
628 while ((i = read (qd, buffer, sizeof buffer)) > 0)
|
|
|
629 if (write (fd, buffer, i) != i)
|
|
|
630 adios (EX_IOERR, tmpfil, "error writing");
|
|
|
631 if (i == NOTOK)
|
|
|
632 adios (EX_IOERR, "input", "error reading");
|
|
|
633
|
|
|
634 (void) lseek (fd, (off_t)0, 0);
|
|
|
635
|
|
|
636 return fd;
|
|
|
637 }
|
|
|
638
|
|
|
639 /* */
|
|
|
640
|
|
|
641 /* VARARGS3 */
|
|
|
642
|
|
|
643 #ifdef MHMTS
|
|
|
644 /* ARGSUSED */
|
|
|
645 #endif MHMTS
|
|
|
646
|
|
|
647 static void adios (code, what, fmt, a, b, c, d, e, f)
|
|
|
648 int code;
|
|
|
649 char *what,
|
|
|
650 *fmt,
|
|
|
651 *a,
|
|
|
652 *b,
|
|
|
653 *c,
|
|
|
654 *d,
|
|
|
655 *e,
|
|
|
656 *f;
|
|
|
657 {
|
|
|
658 advise (what, fmt, a, b, c, d, e, f);
|
|
|
659 #ifdef SENDMTS
|
|
|
660 done (code);
|
|
|
661 #endif SENDMTS
|
|
|
662 #ifdef MHMTS
|
|
|
663 done (1);
|
|
|
664 #endif MHMTS
|
|
|
665 }
|
