| 1 | #include <sys/types.h> |
| 2 | #include <sys/stat.h> |
| 3 | #include "readwrite.h" |
| 4 | #include "sig.h" |
| 5 | #include "env.h" |
| 6 | #include "byte.h" |
| 7 | #include "exit.h" |
| 8 | #include "fork.h" |
| 9 | #include "open.h" |
| 10 | #include "wait.h" |
| 11 | #include "lock.h" |
| 12 | #include "seek.h" |
| 13 | #include "substdio.h" |
| 14 | #include "getln.h" |
| 15 | #include "strerr.h" |
| 16 | #include "subfd.h" |
| 17 | #include "sgetopt.h" |
| 18 | #include "alloc.h" |
| 19 | #include "error.h" |
| 20 | #include "stralloc.h" |
| 21 | #include "fmt.h" |
| 22 | #include "str.h" |
| 23 | #include "now.h" |
| 24 | #include "case.h" |
| 25 | #include "quote.h" |
| 26 | #include "qmail.h" |
| 27 | #include "slurpclose.h" |
| 28 | #include "myctime.h" |
| 29 | #include "gfrom.h" |
| 30 | #include "auto_patrn.h" |
| 31 | |
| 32 | void usage() { strerr_die1x(100,"qmail-local: usage: qmail-local [ -nN ] user homedir local dash ext domain sender aliasempty"); } |
| 33 | |
| 34 | void temp_nomem() { strerr_die1x(111,"Out of memory. (#4.3.0)"); } |
| 35 | void temp_rewind() { strerr_die1x(111,"Unable to rewind message. (#4.3.0)"); } |
| 36 | void temp_childcrashed() { strerr_die1x(111,"Aack, child crashed. (#4.3.0)"); } |
| 37 | void temp_fork() { strerr_die3x(111,"Unable to fork: ",error_str(errno),". (#4.3.0)"); } |
| 38 | void temp_read() { strerr_die3x(111,"Unable to read message: ",error_str(errno),". (#4.3.0)"); } |
| 39 | void temp_slowlock() |
| 40 | { strerr_die1x(111,"File has been locked for 30 seconds straight. (#4.3.0)"); } |
| 41 | void temp_qmail(fn) char *fn; |
| 42 | { strerr_die5x(111,"Unable to open ",fn,": ",error_str(errno),". (#4.3.0)"); } |
| 43 | |
| 44 | int flagdoit; |
| 45 | int flag99; |
| 46 | |
| 47 | char *user; |
| 48 | char *homedir; |
| 49 | char *local; |
| 50 | char *dash; |
| 51 | char *ext; |
| 52 | char *host; |
| 53 | char *sender; |
| 54 | char *aliasempty; |
| 55 | |
| 56 | stralloc safeext = {0}; |
| 57 | stralloc ufline = {0}; |
| 58 | stralloc rpline = {0}; |
| 59 | stralloc envrecip = {0}; |
| 60 | stralloc dtline = {0}; |
| 61 | stralloc qme = {0}; |
| 62 | stralloc ueo = {0}; |
| 63 | stralloc cmds = {0}; |
| 64 | stralloc messline = {0}; |
| 65 | stralloc foo = {0}; |
| 66 | stralloc qsender = {0}; |
| 67 | stralloc tmpline = {0}; |
| 68 | char *verhhost = (char *)0; |
| 69 | char *verhlocal = (char *)0; |
| 70 | int flagheader,flagdobody; |
| 71 | unsigned int i; |
| 72 | |
| 73 | int verhline(sa) |
| 74 | stralloc *sa; |
| 75 | /* substitutes ##L => recipient local, ##H => recipient host if VERP sender */ |
| 76 | /* returns 0 normally, -1 on out-of-memory */ |
| 77 | { |
| 78 | register char *cp; |
| 79 | char *cpnext,*cpafter; |
| 80 | |
| 81 | if (!verhlocal) return 0; /* no VERP SENDER */ |
| 82 | cp = sa->s; |
| 83 | cpnext = sa->s; |
| 84 | cpafter = cp + sa->len; |
| 85 | tmpline.len = 0; /* clear */ |
| 86 | for (;;) { |
| 87 | while (cp < cpafter && *cp++ != '#'); |
| 88 | if (cp + 1 < cpafter && *cp == '#') { /* found '##' */ |
| 89 | cp++; |
| 90 | if (*cp == 'L') { /* ##L */ |
| 91 | if (!stralloc_catb(&tmpline,cpnext,cp - cpnext - 2)) return -1; |
| 92 | cp++; |
| 93 | cpnext = cp; |
| 94 | if (!stralloc_cats(&tmpline,verhlocal)) return -1; |
| 95 | } else if (*cp == 'H') { /* ##H */ |
| 96 | if (!stralloc_catb(&tmpline,cpnext,cp - cpnext - 2)) return -1; |
| 97 | cp++; |
| 98 | cpnext = cp; |
| 99 | if (!stralloc_cats(&tmpline,verhhost)) return -1; |
| 100 | } |
| 101 | } |
| 102 | if (cp >= cpafter) { |
| 103 | if (tmpline.len) { /* true if we've done any substitutions */ |
| 104 | if (!stralloc_catb(&tmpline,cpnext,cpafter - cpnext)) return -1; |
| 105 | if (!stralloc_copy(sa,&tmpline)) return -1; |
| 106 | } |
| 107 | return 0; |
| 108 | } |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | char buf[1024]; |
| 113 | char outbuf[1024]; |
| 114 | |
| 115 | /* child process */ |
| 116 | |
| 117 | char fntmptph[80 + FMT_ULONG * 2]; |
| 118 | char fnnewtph[80 + FMT_ULONG * 2]; |
| 119 | void tryunlinktmp() { unlink(fntmptph); } |
| 120 | void sigalrm() { tryunlinktmp(); _exit(3); } |
| 121 | |
| 122 | void maildir_child(dir) |
| 123 | char *dir; |
| 124 | { |
| 125 | unsigned long pid; |
| 126 | unsigned long time; |
| 127 | char host[64]; |
| 128 | char *s; |
| 129 | int loop; |
| 130 | int match; |
| 131 | struct stat st; |
| 132 | int fd; |
| 133 | substdio ss; |
| 134 | substdio ssout; |
| 135 | |
| 136 | sig_alarmcatch(sigalrm); |
| 137 | if (chdir(dir) == -1) { if (error_temp(errno)) _exit(1); _exit(2); } |
| 138 | pid = getpid(); |
| 139 | host[0] = 0; |
| 140 | gethostname(host,sizeof(host)); |
| 141 | for (loop = 0;;++loop) |
| 142 | { |
| 143 | time = now(); |
| 144 | s = fntmptph; |
| 145 | s += fmt_str(s,"tmp/"); |
| 146 | s += fmt_ulong(s,time); *s++ = '.'; |
| 147 | s += fmt_ulong(s,pid); *s++ = '.'; |
| 148 | s += fmt_strn(s,host,sizeof(host)); *s++ = 0; |
| 149 | if (stat(fntmptph,&st) == -1) if (errno == error_noent) break; |
| 150 | /* really should never get to this point */ |
| 151 | if (loop == 2) _exit(1); |
| 152 | sleep(2); |
| 153 | } |
| 154 | str_copy(fnnewtph,fntmptph); |
| 155 | byte_copy(fnnewtph,3,"new"); |
| 156 | |
| 157 | alarm(86400); |
| 158 | fd = open_excl(fntmptph); |
| 159 | if (fd == -1) _exit(1); |
| 160 | |
| 161 | substdio_fdbuf(&ss,read,0,buf,sizeof(buf)); |
| 162 | substdio_fdbuf(&ssout,write,fd,outbuf,sizeof(outbuf)); |
| 163 | if (substdio_put(&ssout,rpline.s,rpline.len) == -1) goto fail; |
| 164 | if (substdio_put(&ssout,dtline.s,dtline.len) == -1) goto fail; |
| 165 | |
| 166 | flagheader = 1; |
| 167 | flagdobody = 0; |
| 168 | do { /* for VERH */ |
| 169 | if (getln(&ss,&messline,&match,'\n') != 0) |
| 170 | { tryunlinktmp(); _exit(4); } |
| 171 | if (flagheader) { |
| 172 | if (match && messline.len == 1) { |
| 173 | flagheader = 0; |
| 174 | if (!flagdobody) verhlocal = (char *)0; |
| 175 | } |
| 176 | if (messline.s[0] == '#') { /* continue in body */ |
| 177 | flagdobody = 1; /* remove leading '#' */ |
| 178 | for (i = 1; i < messline.len; i++) |
| 179 | messline.s[i - 1] = messline.s[i]; |
| 180 | messline.len--; /* always >= 1 from \n */ |
| 181 | } |
| 182 | } |
| 183 | if (verhlocal) |
| 184 | if (verhline(&messline) == -1) goto fail; |
| 185 | if (substdio_put(&ssout,messline.s,messline.len) == -1) goto fail; |
| 186 | } while (match); |
| 187 | |
| 188 | if (substdio_flush(&ssout) == -1) goto fail; |
| 189 | if (fsync(fd) == -1) goto fail; |
| 190 | if (close(fd) == -1) goto fail; /* NFS dorks */ |
| 191 | |
| 192 | if (link(fntmptph,fnnewtph) == -1) goto fail; |
| 193 | /* if it was error_exist, almost certainly successful; i hate NFS */ |
| 194 | tryunlinktmp(); _exit(0); |
| 195 | |
| 196 | fail: tryunlinktmp(); _exit(1); |
| 197 | } |
| 198 | |
| 199 | /* end child process */ |
| 200 | |
| 201 | void maildir(fn) |
| 202 | char *fn; |
| 203 | { |
| 204 | int child; |
| 205 | int wstat; |
| 206 | |
| 207 | if (seek_begin(0) == -1) temp_rewind(); |
| 208 | |
| 209 | switch(child = fork()) |
| 210 | { |
| 211 | case -1: |
| 212 | temp_fork(); |
| 213 | case 0: |
| 214 | maildir_child(fn); |
| 215 | _exit(111); |
| 216 | } |
| 217 | |
| 218 | wait_pid(&wstat,child); |
| 219 | if (wait_crashed(wstat)) |
| 220 | temp_childcrashed(); |
| 221 | switch(wait_exitcode(wstat)) |
| 222 | { |
| 223 | case 0: break; |
| 224 | case 2: strerr_die1x(111,"Unable to chdir to maildir. (#4.2.1)"); |
| 225 | case 3: strerr_die1x(111,"Timeout on maildir delivery. (#4.3.0)"); |
| 226 | case 4: strerr_die1x(111,"Unable to read message. (#4.3.0)"); |
| 227 | default: strerr_die1x(111,"Temporary error on maildir delivery. (#4.3.0)"); |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | void mailfile(fn) |
| 232 | char *fn; |
| 233 | { |
| 234 | int fd; |
| 235 | substdio ss; |
| 236 | substdio ssout; |
| 237 | int match; |
| 238 | seek_pos pos; |
| 239 | int flaglocked; |
| 240 | |
| 241 | if (seek_begin(0) == -1) temp_rewind(); |
| 242 | |
| 243 | fd = open_append(fn); |
| 244 | if (fd == -1) |
| 245 | strerr_die5x(111,"Unable to open ",fn,": ",error_str(errno),". (#4.2.1)"); |
| 246 | |
| 247 | sig_alarmcatch(temp_slowlock); |
| 248 | alarm(30); |
| 249 | flaglocked = (lock_ex(fd) != -1); |
| 250 | alarm(0); |
| 251 | sig_alarmdefault(); |
| 252 | |
| 253 | seek_end(fd); |
| 254 | pos = seek_cur(fd); |
| 255 | |
| 256 | substdio_fdbuf(&ss,read,0,buf,sizeof(buf)); |
| 257 | substdio_fdbuf(&ssout,write,fd,outbuf,sizeof(outbuf)); |
| 258 | flagheader = 1; |
| 259 | flagdobody = 0; |
| 260 | if (substdio_put(&ssout,ufline.s,ufline.len)) goto writeerrs; |
| 261 | if (substdio_put(&ssout,rpline.s,rpline.len)) goto writeerrs; |
| 262 | if (substdio_put(&ssout,dtline.s,dtline.len)) goto writeerrs; |
| 263 | for (;;) |
| 264 | { |
| 265 | if (getln(&ss,&messline,&match,'\n') != 0) |
| 266 | { |
| 267 | strerr_warn3("Unable to read message: ",error_str(errno),". (#4.3.0)",0); |
| 268 | if (flaglocked) seek_trunc(fd,pos); close(fd); |
| 269 | _exit(111); |
| 270 | } |
| 271 | if (!match && !messline.len) break; |
| 272 | if (gfrom(messline.s,messline.len)) |
| 273 | if (substdio_bput(&ssout,">",1)) goto writeerrs; |
| 274 | if (flagheader) { |
| 275 | if (match && messline.len == 1) { |
| 276 | if (!flagdobody) verhlocal = (char *)0; |
| 277 | flagheader = 0; |
| 278 | } |
| 279 | if (messline.s[0] == '#') { /* continue in body */ |
| 280 | flagdobody = 1; /* remove leading '#' */ |
| 281 | for (i = 1; i < messline.len; i++) |
| 282 | messline.s[i - 1] = messline.s[i]; |
| 283 | messline.len--; |
| 284 | } |
| 285 | } |
| 286 | if (verhlocal) |
| 287 | if (verhline(&messline) == -1) goto writeerrs; |
| 288 | if (substdio_bput(&ssout,messline.s,messline.len)) goto writeerrs; |
| 289 | if (!match) |
| 290 | { |
| 291 | if (substdio_bputs(&ssout,"\n")) goto writeerrs; |
| 292 | break; |
| 293 | } |
| 294 | } |
| 295 | if (substdio_bputs(&ssout,"\n")) goto writeerrs; |
| 296 | if (substdio_flush(&ssout)) goto writeerrs; |
| 297 | if (fsync(fd) == -1) goto writeerrs; |
| 298 | close(fd); |
| 299 | return; |
| 300 | |
| 301 | writeerrs: |
| 302 | strerr_warn5("Unable to write ",fn,": ",error_str(errno),". (#4.3.0)",0); |
| 303 | if (flaglocked) seek_trunc(fd,pos); |
| 304 | close(fd); |
| 305 | _exit(111); |
| 306 | } |
| 307 | |
| 308 | void mailprogram(prog) |
| 309 | char *prog; |
| 310 | { |
| 311 | int child; |
| 312 | char *(args[4]); |
| 313 | int wstat; |
| 314 | |
| 315 | if (seek_begin(0) == -1) temp_rewind(); |
| 316 | |
| 317 | switch(child = fork()) |
| 318 | { |
| 319 | case -1: |
| 320 | temp_fork(); |
| 321 | case 0: |
| 322 | args[0] = "/bin/sh"; args[1] = "-c"; args[2] = prog; args[3] = 0; |
| 323 | sig_pipedefault(); |
| 324 | execv(*args,args); |
| 325 | strerr_die3x(111,"Unable to run /bin/sh: ",error_str(errno),". (#4.3.0)"); |
| 326 | } |
| 327 | |
| 328 | wait_pid(&wstat,child); |
| 329 | if (wait_crashed(wstat)) |
| 330 | temp_childcrashed(); |
| 331 | switch(wait_exitcode(wstat)) |
| 332 | { |
| 333 | case 100: |
| 334 | case 64: case 65: case 70: case 76: case 77: case 78: case 112: _exit(100); |
| 335 | case 0: break; |
| 336 | case 99: flag99 = 1; break; |
| 337 | default: _exit(111); |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | unsigned long mailforward_qp = 0; |
| 342 | |
| 343 | void mailforward(recips) |
| 344 | char **recips; |
| 345 | { |
| 346 | struct qmail qqt; |
| 347 | char *qqx; |
| 348 | substdio ss; |
| 349 | int match; |
| 350 | |
| 351 | if (seek_begin(0) == -1) temp_rewind(); |
| 352 | substdio_fdbuf(&ss,read,0,buf,sizeof(buf)); |
| 353 | |
| 354 | if (qmail_open(&qqt) == -1) temp_fork(); |
| 355 | mailforward_qp = qmail_qp(&qqt); |
| 356 | qmail_put(&qqt,dtline.s,dtline.len); |
| 357 | flagheader = 1; |
| 358 | do |
| 359 | { |
| 360 | if (getln(&ss,&messline,&match,'\n') != 0) { qmail_fail(&qqt); break; } |
| 361 | if (flagheader) { |
| 362 | if (match && messline.len == 1) { |
| 363 | flagheader = 0; |
| 364 | if (!flagdobody) verhlocal = (char *)0; |
| 365 | } |
| 366 | if (messline.s[0] == '#') { /* continue in body */ |
| 367 | flagdobody = 1; /* remove leading '#' */ |
| 368 | for (i = 1; i < messline.len; i++) |
| 369 | messline.s[i - 1] = messline.s[i]; |
| 370 | messline.len--; |
| 371 | } |
| 372 | } |
| 373 | if (verhlocal) |
| 374 | if (verhline(&messline) == -1) { qmail_fail(&qqt); break; } |
| 375 | qmail_put(&qqt,messline.s,messline.len); |
| 376 | } |
| 377 | while (match); |
| 378 | qmail_from(&qqt,ueo.s); |
| 379 | while (*recips) qmail_to(&qqt,*recips++); |
| 380 | qqx = qmail_close(&qqt); |
| 381 | if (!*qqx) return; |
| 382 | strerr_die3x(*qqx == 'D' ? 100 : 111,"Unable to forward message: ",qqx + 1,"."); |
| 383 | } |
| 384 | |
| 385 | void bouncexf() |
| 386 | { |
| 387 | int match; |
| 388 | substdio ss; |
| 389 | |
| 390 | if (seek_begin(0) == -1) temp_rewind(); |
| 391 | substdio_fdbuf(&ss,read,0,buf,sizeof(buf)); |
| 392 | for (;;) |
| 393 | { |
| 394 | if (getln(&ss,&messline,&match,'\n') != 0) temp_read(); |
| 395 | if (!match) break; |
| 396 | if (messline.len <= 1) |
| 397 | break; |
| 398 | if (messline.len == dtline.len) |
| 399 | if (!str_diffn(messline.s,dtline.s,dtline.len)) |
| 400 | strerr_die1x(100,"This message is looping: it already has my Delivered-To line. (#5.4.6)"); |
| 401 | } |
| 402 | } |
| 403 | |
| 404 | void checkhome() |
| 405 | { |
| 406 | struct stat st; |
| 407 | |
| 408 | if (stat(".",&st) == -1) |
| 409 | strerr_die3x(111,"Unable to stat home directory: ",error_str(errno),". (#4.3.0)"); |
| 410 | if (st.st_mode & auto_patrn) |
| 411 | strerr_die1x(111,"Uh-oh: home directory is writable. (#4.7.0)"); |
| 412 | if (st.st_mode & 01000) |
| 413 | if (flagdoit) |
| 414 | strerr_die1x(111,"Home directory is sticky: user is editing his .qmail file. (#4.2.1)"); |
| 415 | else |
| 416 | strerr_warn1("Warning: home directory is sticky.",0); |
| 417 | } |
| 418 | |
| 419 | int qmeox(dashowner) |
| 420 | char *dashowner; |
| 421 | { |
| 422 | struct stat st; |
| 423 | |
| 424 | if (!stralloc_copys(&qme,".qmail")) temp_nomem(); |
| 425 | if (!stralloc_cats(&qme,dash)) temp_nomem(); |
| 426 | if (!stralloc_cat(&qme,&safeext)) temp_nomem(); |
| 427 | if (!stralloc_cats(&qme,dashowner)) temp_nomem(); |
| 428 | if (!stralloc_0(&qme)) temp_nomem(); |
| 429 | if (stat(qme.s,&st) == -1) |
| 430 | { |
| 431 | if (error_temp(errno)) temp_qmail(qme.s); |
| 432 | return -1; |
| 433 | } |
| 434 | return 0; |
| 435 | } |
| 436 | |
| 437 | int qmeexists(fd,cutable) |
| 438 | int *fd; |
| 439 | int *cutable; |
| 440 | { |
| 441 | struct stat st; |
| 442 | |
| 443 | if (!stralloc_0(&qme)) temp_nomem(); |
| 444 | |
| 445 | *fd = open_read(qme.s); |
| 446 | if (*fd == -1) { |
| 447 | if (error_temp(errno)) temp_qmail(qme.s); |
| 448 | if (errno == error_perm) temp_qmail(qme.s); |
| 449 | if (errno == error_acces) temp_qmail(qme.s); |
| 450 | return 0; |
| 451 | } |
| 452 | |
| 453 | if (fstat(*fd,&st) == -1) temp_qmail(qme.s); |
| 454 | if ((st.st_mode & S_IFMT) == S_IFREG) { |
| 455 | if (st.st_mode & auto_patrn) |
| 456 | strerr_die1x(111,"Uh-oh: .qmail file is writable. (#4.7.0)"); |
| 457 | *cutable = !!(st.st_mode & 0100); |
| 458 | return 1; |
| 459 | } |
| 460 | close(*fd); |
| 461 | return 0; |
| 462 | } |
| 463 | |
| 464 | /* "" "": "" */ |
| 465 | /* "-/" "": "-/" "-/default" */ |
| 466 | /* "-/" "a": "-/a" "-/default" */ |
| 467 | /* "-/" "a-": "-/a-" "-/a-default" "-/default" */ |
| 468 | /* "-/" "a-b": "-/a-b" "-/a-default" "-/default" */ |
| 469 | /* "-/" "a-b-": "-/a-b-" "-/a-b-default" "-/a-default" "-/default" */ |
| 470 | /* "-/" "a-b-c": "-/a-b-c" "-/a-b-default" "-/a-default" "-/default" */ |
| 471 | |
| 472 | void qmesearch(fd,cutable) |
| 473 | int *fd; |
| 474 | int *cutable; |
| 475 | { |
| 476 | int i; |
| 477 | |
| 478 | if (!stralloc_copys(&qme,".qmail")) temp_nomem(); |
| 479 | if (!stralloc_cats(&qme,dash)) temp_nomem(); |
| 480 | if (!stralloc_cat(&qme,&safeext)) temp_nomem(); |
| 481 | if (qmeexists(fd,cutable)) { |
| 482 | if (safeext.len >= 7) { |
| 483 | i = safeext.len - 7; |
| 484 | if (!byte_diff("default",7,safeext.s + i)) |
| 485 | if (i <= str_len(ext)) /* paranoia */ |
| 486 | if (!env_put2("DEFAULT",ext + i)) temp_nomem(); |
| 487 | } |
| 488 | return; |
| 489 | } |
| 490 | |
| 491 | for (i = safeext.len;i >= 0;--i) |
| 492 | if (!i || (safeext.s[i - 1] == '-')) { |
| 493 | if (!stralloc_copys(&qme,".qmail")) temp_nomem(); |
| 494 | if (!stralloc_cats(&qme,dash)) temp_nomem(); |
| 495 | if (!stralloc_catb(&qme,safeext.s,i)) temp_nomem(); |
| 496 | if (!stralloc_cats(&qme,"default")) temp_nomem(); |
| 497 | if (qmeexists(fd,cutable)) { |
| 498 | if (i <= str_len(ext)) /* paranoia */ |
| 499 | if (!env_put2("DEFAULT",ext + i)) temp_nomem(); |
| 500 | return; |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | *fd = -1; |
| 505 | } |
| 506 | |
| 507 | unsigned long count_file = 0; |
| 508 | unsigned long count_forward = 0; |
| 509 | unsigned long count_program = 0; |
| 510 | char count_buf[FMT_ULONG]; |
| 511 | |
| 512 | void count_print() |
| 513 | { |
| 514 | substdio_puts(subfdoutsmall,"did "); |
| 515 | substdio_put(subfdoutsmall,count_buf,fmt_ulong(count_buf,count_file)); |
| 516 | substdio_puts(subfdoutsmall,"+"); |
| 517 | substdio_put(subfdoutsmall,count_buf,fmt_ulong(count_buf,count_forward)); |
| 518 | substdio_puts(subfdoutsmall,"+"); |
| 519 | substdio_put(subfdoutsmall,count_buf,fmt_ulong(count_buf,count_program)); |
| 520 | substdio_puts(subfdoutsmall,"\n"); |
| 521 | if (mailforward_qp) |
| 522 | { |
| 523 | substdio_puts(subfdoutsmall,"qp "); |
| 524 | substdio_put(subfdoutsmall,count_buf,fmt_ulong(count_buf,mailforward_qp)); |
| 525 | substdio_puts(subfdoutsmall,"\n"); |
| 526 | } |
| 527 | substdio_flush(subfdoutsmall); |
| 528 | } |
| 529 | |
| 530 | void sayit(type,cmd,len) |
| 531 | char *type; |
| 532 | char *cmd; |
| 533 | int len; |
| 534 | { |
| 535 | substdio_puts(subfdoutsmall,type); |
| 536 | substdio_put(subfdoutsmall,cmd,len); |
| 537 | substdio_putsflush(subfdoutsmall,"\n"); |
| 538 | } |
| 539 | |
| 540 | void main(argc,argv) |
| 541 | int argc; |
| 542 | char **argv; |
| 543 | { |
| 544 | int opt; |
| 545 | int i; |
| 546 | int j; |
| 547 | int k; |
| 548 | int fd; |
| 549 | int numforward; |
| 550 | char **recips; |
| 551 | datetime_sec starttime; |
| 552 | int flagforwardonly; |
| 553 | char *x; |
| 554 | char *cplast; |
| 555 | |
| 556 | umask(077); |
| 557 | sig_pipeignore(); |
| 558 | |
| 559 | if (!env_init()) temp_nomem(); |
| 560 | |
| 561 | flagdoit = 1; |
| 562 | while ((opt = getopt(argc,argv,"nN")) != opteof) |
| 563 | switch(opt) |
| 564 | { |
| 565 | case 'n': flagdoit = 0; break; |
| 566 | case 'N': flagdoit = 1; break; |
| 567 | default: |
| 568 | usage(); |
| 569 | } |
| 570 | argc -= optind; |
| 571 | argv += optind; |
| 572 | |
| 573 | if (!(user = *argv++)) usage(); |
| 574 | if (!(homedir = *argv++)) usage(); |
| 575 | if (!(local = *argv++)) usage(); |
| 576 | if (!(dash = *argv++)) usage(); |
| 577 | if (!(ext = *argv++)) usage(); |
| 578 | if (!(host = *argv++)) usage(); |
| 579 | if (!(sender = *argv++)) usage(); |
| 580 | if (!(aliasempty = *argv++)) usage(); |
| 581 | if (*argv) usage(); |
| 582 | |
| 583 | if (homedir[0] != '/') usage(); |
| 584 | if (chdir(homedir) == -1) |
| 585 | strerr_die5x(111,"Unable to switch to ",homedir,": ",error_str(errno),". (#4.3.0)"); |
| 586 | checkhome(); |
| 587 | |
| 588 | if (!env_put2("HOST",host)) temp_nomem(); |
| 589 | if (!env_put2("HOME",homedir)) temp_nomem(); |
| 590 | if (!env_put2("USER",user)) temp_nomem(); |
| 591 | if (!env_put2("LOCAL",local)) temp_nomem(); |
| 592 | |
| 593 | if (!stralloc_copys(&envrecip,local)) temp_nomem(); |
| 594 | if (!stralloc_cats(&envrecip,"@")) temp_nomem(); |
| 595 | if (!stralloc_cats(&envrecip,host)) temp_nomem(); |
| 596 | |
| 597 | if (!stralloc_copy(&foo,&envrecip)) temp_nomem(); |
| 598 | if (!stralloc_0(&foo)) temp_nomem(); |
| 599 | if (!env_put2("RECIPIENT",foo.s)) temp_nomem(); |
| 600 | |
| 601 | if (!stralloc_copys(&dtline,"Delivered-To: ")) temp_nomem(); |
| 602 | if (!stralloc_cat(&dtline,&envrecip)) temp_nomem(); |
| 603 | for (i = 0;i < dtline.len;++i) if (dtline.s[i] == '\n') dtline.s[i] = '_'; |
| 604 | if (!stralloc_cats(&dtline,"\n")) temp_nomem(); |
| 605 | |
| 606 | if (!stralloc_copy(&foo,&dtline)) temp_nomem(); |
| 607 | if (!stralloc_0(&foo)) temp_nomem(); |
| 608 | if (!env_put2("DTLINE",foo.s)) temp_nomem(); |
| 609 | |
| 610 | if (flagdoit) |
| 611 | bouncexf(); |
| 612 | |
| 613 | if (!env_put2("SENDER",sender)) temp_nomem(); |
| 614 | |
| 615 | if (!quote2(&qsender,sender)) temp_nomem(); |
| 616 | if (!stralloc_copys(&rpline,"Return-Path: <")) temp_nomem(); |
| 617 | if (!stralloc_cat(&rpline,&qsender)) temp_nomem(); |
| 618 | for (i = 0;i < rpline.len;++i) if (rpline.s[i] == '\n') rpline.s[i] = '_'; |
| 619 | if (!stralloc_cats(&rpline,">\n")) temp_nomem(); |
| 620 | |
| 621 | if (!stralloc_copy(&foo,&rpline)) temp_nomem(); |
| 622 | if (!stralloc_0(&foo)) temp_nomem(); |
| 623 | if (!env_put2("RPLINE",foo.s)) temp_nomem(); |
| 624 | |
| 625 | i = byte_rchr(qsender.s,qsender.len,'@'); /* for VERH */ |
| 626 | if (i != qsender.len) { /* got @ */ |
| 627 | cplast = qsender.s + i; |
| 628 | *cplast = '\0'; |
| 629 | if (qsender.s[i = str_rchr(qsender.s,'=')]) { /* got = */ |
| 630 | qsender.s[i] = '\0'; |
| 631 | cplast = qsender.s + i; |
| 632 | verhhost = qsender.s + i + 1; |
| 633 | i = str_rchr(qsender.s,'-'); |
| 634 | if (qsender.s[i] == '-') { |
| 635 | for (;;) { |
| 636 | if (case_starts(qsender.s + i + 1,"return-")) { |
| 637 | verhlocal = qsender.s + i + 9 + str_chr(qsender.s + i + 8,'-'); |
| 638 | /* here to avoid work if not VERP */ |
| 639 | /* verhhost not used if verhlocal=0 */ |
| 640 | for (x = verhlocal; x < cplast; x++) |
| 641 | if (*x == '\n') *x = '_'; /* \n would ruin */ |
| 642 | break; |
| 643 | } |
| 644 | j = byte_rchr(qsender.s,i,'-'); |
| 645 | if (j == i) break; |
| 646 | i = j; |
| 647 | } |
| 648 | } |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | if (!stralloc_copys(&ufline,"From ")) temp_nomem(); |
| 653 | if (*sender) |
| 654 | { |
| 655 | int len; int i; char ch; |
| 656 | |
| 657 | len = str_len(sender); |
| 658 | if (!stralloc_readyplus(&ufline,len)) temp_nomem(); |
| 659 | for (i = 0;i < len;++i) |
| 660 | { |
| 661 | ch = sender[i]; |
| 662 | if ((ch == ' ') || (ch == '\t') || (ch == '\n')) ch = '-'; |
| 663 | ufline.s[ufline.len + i] = ch; |
| 664 | } |
| 665 | ufline.len += len; |
| 666 | } |
| 667 | else |
| 668 | if (!stralloc_cats(&ufline,"MAILER-DAEMON")) temp_nomem(); |
| 669 | if (!stralloc_cats(&ufline," ")) temp_nomem(); |
| 670 | starttime = now(); |
| 671 | if (!stralloc_cats(&ufline,myctime(starttime))) temp_nomem(); |
| 672 | |
| 673 | if (!stralloc_copy(&foo,&ufline)) temp_nomem(); |
| 674 | if (!stralloc_0(&foo)) temp_nomem(); |
| 675 | if (!env_put2("UFLINE",foo.s)) temp_nomem(); |
| 676 | |
| 677 | x = ext; |
| 678 | if (!env_put2("EXT",x)) temp_nomem(); |
| 679 | x += str_chr(x,'-'); if (*x) ++x; |
| 680 | if (!env_put2("EXT2",x)) temp_nomem(); |
| 681 | x += str_chr(x,'-'); if (*x) ++x; |
| 682 | if (!env_put2("EXT3",x)) temp_nomem(); |
| 683 | x += str_chr(x,'-'); if (*x) ++x; |
| 684 | if (!env_put2("EXT4",x)) temp_nomem(); |
| 685 | |
| 686 | if (!stralloc_copys(&safeext,ext)) temp_nomem(); |
| 687 | case_lowerb(safeext.s,safeext.len); |
| 688 | for (i = 0;i < safeext.len;++i) |
| 689 | if (safeext.s[i] == '.') |
| 690 | safeext.s[i] = ':'; |
| 691 | |
| 692 | i = str_len(host); |
| 693 | i = byte_rchr(host,i,'.'); |
| 694 | if (!stralloc_copyb(&foo,host,i)) temp_nomem(); |
| 695 | if (!stralloc_0(&foo)) temp_nomem(); |
| 696 | if (!env_put2("HOST2",foo.s)) temp_nomem(); |
| 697 | i = byte_rchr(host,i,'.'); |
| 698 | if (!stralloc_copyb(&foo,host,i)) temp_nomem(); |
| 699 | if (!stralloc_0(&foo)) temp_nomem(); |
| 700 | if (!env_put2("HOST3",foo.s)) temp_nomem(); |
| 701 | i = byte_rchr(host,i,'.'); |
| 702 | if (!stralloc_copyb(&foo,host,i)) temp_nomem(); |
| 703 | if (!stralloc_0(&foo)) temp_nomem(); |
| 704 | if (!env_put2("HOST4",foo.s)) temp_nomem(); |
| 705 | |
| 706 | flagforwardonly = 0; |
| 707 | qmesearch(&fd,&flagforwardonly); |
| 708 | if (fd == -1) |
| 709 | if (*dash) |
| 710 | strerr_die1x(100,"Sorry, no mailbox here by that name. (#5.1.1)"); |
| 711 | |
| 712 | if (!stralloc_copys(&ueo,sender)) temp_nomem(); |
| 713 | if (str_diff(sender,"")) |
| 714 | if (str_diff(sender,"#@[]")) |
| 715 | if (qmeox("-owner") == 0) |
| 716 | { |
| 717 | if (qmeox("-owner-default") == 0) |
| 718 | { |
| 719 | if (!stralloc_copys(&ueo,local)) temp_nomem(); |
| 720 | if (!stralloc_cats(&ueo,"-owner-@")) temp_nomem(); |
| 721 | if (!stralloc_cats(&ueo,host)) temp_nomem(); |
| 722 | if (!stralloc_cats(&ueo,"-@[]")) temp_nomem(); |
| 723 | } |
| 724 | else |
| 725 | { |
| 726 | if (!stralloc_copys(&ueo,local)) temp_nomem(); |
| 727 | if (!stralloc_cats(&ueo,"-owner@")) temp_nomem(); |
| 728 | if (!stralloc_cats(&ueo,host)) temp_nomem(); |
| 729 | } |
| 730 | } |
| 731 | if (!stralloc_0(&ueo)) temp_nomem(); |
| 732 | if (!env_put2("NEWSENDER",ueo.s)) temp_nomem(); |
| 733 | |
| 734 | if (!stralloc_ready(&cmds,0)) temp_nomem(); |
| 735 | cmds.len = 0; |
| 736 | if (fd != -1) |
| 737 | if (slurpclose(fd,&cmds,256) == -1) temp_nomem(); |
| 738 | |
| 739 | if (!cmds.len) |
| 740 | { |
| 741 | if (!stralloc_copys(&cmds,aliasempty)) temp_nomem(); |
| 742 | flagforwardonly = 0; |
| 743 | } |
| 744 | if (!cmds.len || (cmds.s[cmds.len - 1] != '\n')) |
| 745 | if (!stralloc_cats(&cmds,"\n")) temp_nomem(); |
| 746 | |
| 747 | numforward = 0; |
| 748 | i = 0; |
| 749 | for (j = 0;j < cmds.len;++j) |
| 750 | if (cmds.s[j] == '\n') |
| 751 | { |
| 752 | switch(cmds.s[i]) { case '#': case '.': case '/': case '|': break; |
| 753 | default: ++numforward; } |
| 754 | i = j + 1; |
| 755 | } |
| 756 | |
| 757 | recips = (char **) alloc((numforward + 1) * sizeof(char *)); |
| 758 | if (!recips) temp_nomem(); |
| 759 | numforward = 0; |
| 760 | |
| 761 | flag99 = 0; |
| 762 | |
| 763 | i = 0; |
| 764 | for (j = 0;j < cmds.len;++j) |
| 765 | if (cmds.s[j] == '\n') |
| 766 | { |
| 767 | cmds.s[j] = 0; |
| 768 | k = j; |
| 769 | while ((k > i) && (cmds.s[k - 1] == ' ') || (cmds.s[k - 1] == '\t')) |
| 770 | cmds.s[--k] = 0; |
| 771 | switch(cmds.s[i]) |
| 772 | { |
| 773 | case 0: /* k == i */ |
| 774 | if (i) break; |
| 775 | strerr_die1x(111,"Uh-oh: first line of .qmail file is blank. (#4.2.1)"); |
| 776 | case '#': |
| 777 | break; |
| 778 | case '<': |
| 779 | if (!stralloc_copys(&ueo, cmds.s + i + 1) || |
| 780 | !stralloc_0(&ueo) || |
| 781 | !env_put2("NEWSENDER", ueo.s)) |
| 782 | temp_nomem(); |
| 783 | break; |
| 784 | case '.': |
| 785 | case '/': |
| 786 | ++count_file; |
| 787 | if (flagforwardonly) strerr_die1x(111,"Uh-oh: .qmail has file delivery but has x bit set. (#4.7.0)"); |
| 788 | if (cmds.s[k - 1] == '/') |
| 789 | if (flagdoit) maildir(cmds.s + i); |
| 790 | else sayit("maildir ",cmds.s + i,k - i); |
| 791 | else |
| 792 | if (flagdoit) mailfile(cmds.s + i); |
| 793 | else sayit("mbox ",cmds.s + i,k - i); |
| 794 | break; |
| 795 | case '|': |
| 796 | ++count_program; |
| 797 | if (flagforwardonly) strerr_die1x(111,"Uh-oh: .qmail has prog delivery but has x bit set. (#4.7.0)"); |
| 798 | if (flagdoit) mailprogram(cmds.s + i + 1); |
| 799 | else sayit("program ",cmds.s + i + 1,k - i - 1); |
| 800 | break; |
| 801 | case '+': |
| 802 | if (str_equal(cmds.s + i + 1,"list")) |
| 803 | flagforwardonly = 1; |
| 804 | break; |
| 805 | case '&': |
| 806 | ++i; |
| 807 | goto fwd; |
| 808 | case '!': |
| 809 | i++; |
| 810 | if (!cmds.s[i + str_chr(cmds.s + i, '=')]) { |
| 811 | if (!env_unset(cmds.s + i)) temp_nomem(); |
| 812 | } else { |
| 813 | env: |
| 814 | if (!env_put(cmds.s + i)) temp_nomem(); |
| 815 | } |
| 816 | break; |
| 817 | default: |
| 818 | if (cmds.s[i + str_chr(cmds.s + i, '=')]) |
| 819 | goto env; |
| 820 | fwd: |
| 821 | ++count_forward; |
| 822 | if (flagdoit) recips[numforward++] = cmds.s + i; |
| 823 | else sayit("forward ",cmds.s + i,k - i); |
| 824 | break; |
| 825 | } |
| 826 | i = j + 1; |
| 827 | if (flag99) break; |
| 828 | } |
| 829 | |
| 830 | if (numforward) if (flagdoit) |
| 831 | { |
| 832 | recips[numforward] = 0; |
| 833 | mailforward(recips); |
| 834 | } |
| 835 | |
| 836 | count_print(); |
| 837 | _exit(0); |
| 838 | } |