| 1 | #include <sys/types.h> |
| 2 | #include <sys/time.h> |
| 3 | #include "sgetopt.h" |
| 4 | #include "stralloc.h" |
| 5 | #include "strerr.h" |
| 6 | #include "exit.h" |
| 7 | #include "readwrite.h" |
| 8 | #include "open.h" |
| 9 | #include "substdio.h" |
| 10 | #include "str.h" |
| 11 | #include "auto_bin.h" |
| 12 | |
| 13 | #define FATAL "ezmlm-make: fatal: " |
| 14 | |
| 15 | void die_usage() |
| 16 | { |
| 17 | strerr_die1x(100,"ezmlm-make: usage: ezmlm-make [ -aApP ] dir dot local host"); |
| 18 | } |
| 19 | void die_relative() |
| 20 | { |
| 21 | strerr_die2x(100,FATAL,"dir must start with slash"); |
| 22 | } |
| 23 | void die_newline() |
| 24 | { |
| 25 | strerr_die2x(100,FATAL,"newlines not allowed"); |
| 26 | } |
| 27 | void die_quote() |
| 28 | { |
| 29 | strerr_die2x(100,FATAL,"quotes not allowed"); |
| 30 | } |
| 31 | void die_nomem() |
| 32 | { |
| 33 | strerr_die2x(111,FATAL,"out of memory"); |
| 34 | } |
| 35 | |
| 36 | stralloc key = {0}; |
| 37 | struct timeval tv; |
| 38 | |
| 39 | void keyadd(u) |
| 40 | unsigned long u; |
| 41 | { |
| 42 | char ch; |
| 43 | ch = u; if (!stralloc_append(&key,&ch)) die_nomem(); u >>= 8; |
| 44 | ch = u; if (!stralloc_append(&key,&ch)) die_nomem(); u >>= 8; |
| 45 | ch = u; if (!stralloc_append(&key,&ch)) die_nomem(); u >>= 8; |
| 46 | ch = u; if (!stralloc_append(&key,&ch)) die_nomem(); |
| 47 | } |
| 48 | |
| 49 | void keyaddtime() |
| 50 | { |
| 51 | gettimeofday(&tv,(struct timezone *) 0); |
| 52 | keyadd(tv.tv_usec); |
| 53 | } |
| 54 | |
| 55 | char *dir; |
| 56 | char *dot; |
| 57 | char *local; |
| 58 | char *host; |
| 59 | |
| 60 | stralloc dotplus = {0}; |
| 61 | stralloc dirplus = {0}; |
| 62 | |
| 63 | void dirplusmake(slash) |
| 64 | char *slash; |
| 65 | { |
| 66 | if (!stralloc_copys(&dirplus,dir)) die_nomem(); |
| 67 | if (!stralloc_cats(&dirplus,slash)) die_nomem(); |
| 68 | if (!stralloc_0(&dirplus)) die_nomem(); |
| 69 | } |
| 70 | |
| 71 | void linkdotdir(dash,slash) |
| 72 | char *dash; |
| 73 | char *slash; |
| 74 | { |
| 75 | if (!stralloc_copys(&dotplus,dot)) die_nomem(); |
| 76 | if (!stralloc_cats(&dotplus,dash)) die_nomem(); |
| 77 | if (!stralloc_0(&dotplus)) die_nomem(); |
| 78 | dirplusmake(slash); |
| 79 | if (symlink(dirplus.s,dotplus.s) == -1) |
| 80 | strerr_die4sys(111,FATAL,"unable to create ",dotplus.s,": "); |
| 81 | keyaddtime(); |
| 82 | } |
| 83 | |
| 84 | void dcreate(slash) |
| 85 | char *slash; |
| 86 | { |
| 87 | dirplusmake(slash); |
| 88 | if (mkdir(dirplus.s,0755) == -1) |
| 89 | strerr_die4sys(111,FATAL,"unable to create ",dirplus.s,": "); |
| 90 | keyaddtime(); |
| 91 | } |
| 92 | |
| 93 | substdio ss; |
| 94 | char ssbuf[SUBSTDIO_OUTSIZE]; |
| 95 | |
| 96 | void fopen(slash) |
| 97 | char *slash; |
| 98 | { |
| 99 | int fd; |
| 100 | |
| 101 | dirplusmake(slash); |
| 102 | fd = open_trunc(dirplus.s); |
| 103 | if (fd == -1) |
| 104 | strerr_die4sys(111,FATAL,"unable to create ",dirplus.s,": "); |
| 105 | |
| 106 | substdio_fdbuf(&ss,write,fd,ssbuf,sizeof(ssbuf)); |
| 107 | } |
| 108 | |
| 109 | void fput(buf,len) |
| 110 | char *buf; |
| 111 | unsigned int len; |
| 112 | { |
| 113 | if (substdio_bput(&ss,buf,len) == -1) |
| 114 | strerr_die4sys(111,FATAL,"unable to write to ",dirplus.s,": "); |
| 115 | } |
| 116 | void fputs(buf) |
| 117 | char *buf; |
| 118 | { |
| 119 | if (substdio_bputs(&ss,buf) == -1) |
| 120 | strerr_die4sys(111,FATAL,"unable to write to ",dirplus.s,": "); |
| 121 | } |
| 122 | |
| 123 | void fclose() |
| 124 | { |
| 125 | if (substdio_flush(&ss) == -1) |
| 126 | strerr_die4sys(111,FATAL,"unable to write to ",dirplus.s,": "); |
| 127 | if (fsync(ss.fd) == -1) |
| 128 | strerr_die4sys(111,FATAL,"unable to write to ",dirplus.s,": "); |
| 129 | if (close(ss.fd) == -1) /* NFS stupidity */ |
| 130 | strerr_die4sys(111,FATAL,"unable to write to ",dirplus.s,": "); |
| 131 | keyaddtime(); |
| 132 | } |
| 133 | |
| 134 | void main(argc,argv) |
| 135 | int argc; |
| 136 | char **argv; |
| 137 | { |
| 138 | int opt; |
| 139 | int flagarchived; |
| 140 | int flagpublic; |
| 141 | |
| 142 | keyadd(getpid()); |
| 143 | keyadd(getppid()); |
| 144 | keyadd(getuid()); |
| 145 | keyadd(getgid()); |
| 146 | gettimeofday(&tv,(struct timezone *) 0); |
| 147 | keyadd(tv.tv_sec); |
| 148 | |
| 149 | umask(077); |
| 150 | |
| 151 | flagarchived = 1; |
| 152 | flagpublic = 1; |
| 153 | |
| 154 | while ((opt = getopt(argc,argv,"aApP")) != opteof) |
| 155 | switch(opt) { |
| 156 | case 'a': flagarchived = 1; break; |
| 157 | case 'A': flagarchived = 0; break; |
| 158 | case 'p': flagpublic = 1; break; |
| 159 | case 'P': flagpublic = 0; break; |
| 160 | default: |
| 161 | die_usage(); |
| 162 | } |
| 163 | argv += optind; |
| 164 | |
| 165 | if (!(dir = *argv++)) die_usage(); |
| 166 | if (!(dot = *argv++)) die_usage(); |
| 167 | if (!(local = *argv++)) die_usage(); |
| 168 | if (!(host = *argv++)) die_usage(); |
| 169 | |
| 170 | if (dir[0] != '/') die_relative(); |
| 171 | if (dir[str_chr(dir,'\'')]) die_quote(); |
| 172 | if (dir[str_chr(dir,'\n')]) die_newline(); |
| 173 | if (local[str_chr(local,'\n')]) die_newline(); |
| 174 | if (host[str_chr(host,'\n')]) die_newline(); |
| 175 | |
| 176 | dcreate(""); |
| 177 | dcreate("/archive"); |
| 178 | dcreate("/subscribers"); |
| 179 | dcreate("/bounce"); |
| 180 | dcreate("/text"); |
| 181 | |
| 182 | |
| 183 | linkdotdir("-owner","/owner"); |
| 184 | linkdotdir("-default","/manager"); |
| 185 | linkdotdir("-return-default","/bouncer"); |
| 186 | linkdotdir("","/editor"); |
| 187 | |
| 188 | fopen("/lock"); fclose(); |
| 189 | fopen("/lockbounce"); fclose(); |
| 190 | if (flagpublic) { |
| 191 | fopen("/public"); fclose(); |
| 192 | } |
| 193 | if (flagarchived) { |
| 194 | fopen("/archived"); fclose(); |
| 195 | } |
| 196 | fopen("/num"); fputs("0\n"); fclose(); |
| 197 | fopen("/inhost"); fputs(host); fputs("\n"); fclose(); |
| 198 | fopen("/outhost"); fputs(host); fputs("\n"); fclose(); |
| 199 | fopen("/inlocal"); fputs(local); fputs("\n"); fclose(); |
| 200 | fopen("/outlocal"); fputs(local); fputs("\n"); fclose(); |
| 201 | |
| 202 | fopen("/mailinglist"); |
| 203 | fputs("contact "); |
| 204 | fputs(local); fputs("-help@"); fputs(host); fputs("; run by ezmlm\n"); |
| 205 | fclose(); |
| 206 | |
| 207 | fopen("/owner"); |
| 208 | fputs(dir); fputs("/Mailbox\n"); |
| 209 | fputs("|"); fputs(auto_bin); fputs("/ezmlm-warn '"); fputs(dir); |
| 210 | fputs("' || exit 0\n"); |
| 211 | fclose(); |
| 212 | |
| 213 | fopen("/manager"); |
| 214 | fputs("|"); fputs(auto_bin); fputs("/ezmlm-manage '"); fputs(dir); fputs("'\n"); |
| 215 | fputs("|"); fputs(auto_bin); fputs("/ezmlm-warn '"); fputs(dir); |
| 216 | fputs("' || exit 0\n"); |
| 217 | fclose(); |
| 218 | |
| 219 | fopen("/editor"); |
| 220 | fputs("|"); fputs(auto_bin); fputs("/ezmlm-reject\n"); |
| 221 | fputs("|"); fputs(auto_bin); fputs("/ezmlm-send '"); fputs(dir); fputs("'\n"); |
| 222 | fputs("|"); fputs(auto_bin); fputs("/ezmlm-warn '"); fputs(dir); |
| 223 | fputs("' || exit 0\n"); |
| 224 | fclose(); |
| 225 | |
| 226 | fopen("/bouncer"); |
| 227 | fputs("|"); fputs(auto_bin); fputs("/ezmlm-warn '"); fputs(dir); |
| 228 | fputs("' || exit 0\n"); |
| 229 | fputs("|"); fputs(auto_bin); fputs("/ezmlm-weed\n"); |
| 230 | fputs("|"); fputs(auto_bin); fputs("/ezmlm-return '"); fputs(dir); fputs("'\n"); |
| 231 | fclose(); |
| 232 | |
| 233 | fopen("/headerremove"); |
| 234 | fputs("\ |
| 235 | return-path\n\ |
| 236 | return-receipt-to\n\ |
| 237 | content-length\n\ |
| 238 | "); |
| 239 | fclose(); |
| 240 | |
| 241 | fopen("/headeradd"); |
| 242 | fclose(); |
| 243 | |
| 244 | |
| 245 | fopen("/text/top"); |
| 246 | fputs("Hi! This is the ezmlm program. I'm managing the\n"); |
| 247 | fputs(local); fputs("@"); fputs(host); fputs(" mailing list.\n\n"); |
| 248 | fclose(); |
| 249 | |
| 250 | fopen("/text/bottom"); |
| 251 | fputs("\n--- Here are the ezmlm command addresses.\n\ |
| 252 | \n\ |
| 253 | I can handle administrative requests automatically.\n\ |
| 254 | Just send an empty note to any of these addresses:\n\n <"); |
| 255 | fputs(local); fputs("-subscribe@"); fputs(host); fputs(">:\n"); |
| 256 | fputs(" Receive future messages sent to the mailing list.\n\n <"); |
| 257 | fputs(local); fputs("-unsubscribe@"); fputs(host); fputs(">:\n"); |
| 258 | fputs(" Stop receiving messages.\n\n <"); |
| 259 | fputs(local); fputs("-get.12345@"); fputs(host); fputs(">:\n"); |
| 260 | fputs(" Retrieve a copy of message 12345 from the archive.\n\ |
| 261 | \n\ |
| 262 | DO NOT SEND ADMINISTRATIVE REQUESTS TO THE MAILING LIST!\n\ |
| 263 | If you do, I won't see them, and subscribers will yell at you.\n\ |
| 264 | \n\ |
| 265 | To specify God@heaven.af.mil as your subscription address, send mail\n\ |
| 266 | to <"); |
| 267 | fputs(local); fputs("-subscribe-God=heaven.af.mil@"); fputs(host); |
| 268 | fputs(">.\n\ |
| 269 | I'll send a confirmation message to that address; when you receive that\n\ |
| 270 | message, simply reply to it to complete your subscription.\n\ |
| 271 | \n"); |
| 272 | fputs("\n--- Below this line is a copy of the request I received.\n\n"); |
| 273 | fclose(); |
| 274 | |
| 275 | fopen("/text/sub-confirm"); |
| 276 | fputs("To confirm that you would like\n\ |
| 277 | \n\ |
| 278 | !A\n\ |
| 279 | \n\ |
| 280 | added to this mailing list, please send an empty reply to this address:\n\ |
| 281 | \n\ |
| 282 | !R\n\ |
| 283 | \n\ |
| 284 | Your mailer should have a Reply feature that uses this address automatically.\n\ |
| 285 | \n\ |
| 286 | This confirmation serves two purposes. First, it verifies that I am able\n\ |
| 287 | to get mail through to you. Second, it protects you in case someone\n\ |
| 288 | forges a subscription request in your name.\n\ |
| 289 | \n"); |
| 290 | fclose(); |
| 291 | |
| 292 | fopen("/text/unsub-confirm"); |
| 293 | fputs("To confirm that you would like\n\ |
| 294 | \n\ |
| 295 | !A\n\ |
| 296 | \n\ |
| 297 | removed from this mailing list, please send an empty reply to this address:\n\ |
| 298 | \n\ |
| 299 | !R\n\ |
| 300 | \n\ |
| 301 | Your mailer should have a Reply feature that uses this address automatically.\n\ |
| 302 | \n\ |
| 303 | I haven't checked whether your address is currently on the mailing list.\n\ |
| 304 | To see what address you used to subscribe, look at the messages you are\n\ |
| 305 | receiving from the mailing list. Each message has your address hidden\n\ |
| 306 | inside its return path; for example, God@heaven.af.mil receives messages\n\ |
| 307 | with return path ...-God=heaven.af.mil.\n\ |
| 308 | \n"); |
| 309 | fclose(); |
| 310 | |
| 311 | fopen("/text/sub-ok"); |
| 312 | fputs("Acknowledgment: I have added the address\n\ |
| 313 | \n\ |
| 314 | !A\n\ |
| 315 | \n\ |
| 316 | to this mailing list.\n\ |
| 317 | \n"); |
| 318 | fclose(); |
| 319 | |
| 320 | fopen("/text/unsub-ok"); |
| 321 | fputs("Acknowledgment: I have removed the address\n\ |
| 322 | \n\ |
| 323 | !A\n\ |
| 324 | \n\ |
| 325 | from this mailing list.\n\ |
| 326 | \n"); |
| 327 | fclose(); |
| 328 | |
| 329 | fopen("/text/sub-nop"); |
| 330 | fputs("Acknowledgment: The address\n\ |
| 331 | \n\ |
| 332 | !A\n\ |
| 333 | \n\ |
| 334 | is on this mailing list.\n\ |
| 335 | \n"); |
| 336 | fclose(); |
| 337 | |
| 338 | fopen("/text/unsub-nop"); |
| 339 | fputs("Acknowledgment: The address\n\ |
| 340 | \n\ |
| 341 | !A\n\ |
| 342 | \n\ |
| 343 | is not on this mailing list.\n\ |
| 344 | \n"); |
| 345 | fclose(); |
| 346 | |
| 347 | fopen("/text/sub-bad"); |
| 348 | fputs("Oops, that confirmation number appears to be invalid.\n\ |
| 349 | \n\ |
| 350 | The most common reason for invalid numbers is expiration. I have to\n\ |
| 351 | receive confirmation of each request within ten days.\n\ |
| 352 | \n\ |
| 353 | I've set up a new confirmation number. To confirm that you would like\n\ |
| 354 | \n\ |
| 355 | !A\n\ |
| 356 | \n\ |
| 357 | added to this mailing list, please send an empty reply to this address:\n\ |
| 358 | \n\ |
| 359 | !R\n\ |
| 360 | \n\ |
| 361 | Sorry for the trouble.\n\ |
| 362 | \n"); |
| 363 | fclose(); |
| 364 | |
| 365 | fopen("/text/unsub-bad"); |
| 366 | fputs("Oops, that confirmation number appears to be invalid.\n\ |
| 367 | \n\ |
| 368 | The most common reason for invalid numbers is expiration. I have to\n\ |
| 369 | receive confirmation of each request within ten days.\n\ |
| 370 | \n\ |
| 371 | I've set up a new confirmation number. To confirm that you would like\n\ |
| 372 | \n\ |
| 373 | !A\n\ |
| 374 | \n\ |
| 375 | removed from this mailing list, please send an empty reply to this address:\n\ |
| 376 | \n\ |
| 377 | !R\n\ |
| 378 | \n\ |
| 379 | Sorry for the trouble.\n\ |
| 380 | \n"); |
| 381 | fclose(); |
| 382 | |
| 383 | fopen("/text/get-bad"); |
| 384 | fputs("Sorry, I don't see that message.\n\n"); |
| 385 | fclose(); |
| 386 | |
| 387 | fopen("/text/bounce-bottom"); |
| 388 | fputs("\n\ |
| 389 | --- Below this line is a copy of the bounce message I received.\n\n"); |
| 390 | fclose(); |
| 391 | |
| 392 | fopen("/text/bounce-warn"); |
| 393 | fputs("\n\ |
| 394 | Messages to you seem to have been bouncing. I've attached a copy of\n\ |
| 395 | the first bounce message I received.\n\ |
| 396 | \n\ |
| 397 | If this message bounces too, I will send you a probe. If the probe bounces,\n\ |
| 398 | I will remove your address from the mailing list, without further notice.\n\ |
| 399 | \n"); |
| 400 | fclose(); |
| 401 | |
| 402 | fopen("/text/bounce-probe"); |
| 403 | fputs("\n\ |
| 404 | Messages to you seem to have been bouncing. I sent you a warning\n\ |
| 405 | message, but it bounced. I've attached a copy of the bounce message.\n\ |
| 406 | \n\ |
| 407 | This is a probe to check whether your address is reachable. If this\n\ |
| 408 | probe bounces, I will remove your address from the mailing list, without\n\ |
| 409 | further notice.\n\ |
| 410 | \n"); |
| 411 | fclose(); |
| 412 | |
| 413 | fopen("/text/bounce-num"); |
| 414 | fputs("\n\ |
| 415 | I've kept a list of which messages bounced from your address. Copies of\n\ |
| 416 | these messages may be in the archive. To get message 12345 from the\n\ |
| 417 | archive, send an empty note to "); |
| 418 | fputs(local); fputs("-get.12345@"); fputs(host); fputs(".\n\ |
| 419 | Here are the message numbers:\n\ |
| 420 | \n"); |
| 421 | fclose(); |
| 422 | |
| 423 | fopen("/text/help"); |
| 424 | fputs("\ |
| 425 | This is a generic help message. The message I received wasn't sent to\n\ |
| 426 | any of my command addresses.\n\ |
| 427 | \n"); |
| 428 | fclose(); |
| 429 | |
| 430 | fopen("/key"); |
| 431 | fput(key.s,key.len); |
| 432 | fclose(); |
| 433 | |
| 434 | _exit(0); |
| 435 | } |