| 1 | /*$Id: ezmlm-split.c,v 1.6 1999/05/12 22:17:54 lindberg Exp $*/ |
| 2 | /*$Name: ezmlm-idx-040 $*/ |
| 3 | |
| 4 | #include <sys/types.h> |
| 5 | #include <sys/stat.h> |
| 6 | #include "error.h" |
| 7 | #include "stralloc.h" |
| 8 | #include "str.h" |
| 9 | #include "env.h" |
| 10 | #include "sig.h" |
| 11 | #include "slurp.h" |
| 12 | #include "getconf.h" |
| 13 | #include "strerr.h" |
| 14 | #include "byte.h" |
| 15 | #include "getln.h" |
| 16 | #include "case.h" |
| 17 | #include "qmail.h" |
| 18 | #include "substdio.h" |
| 19 | #include "readwrite.h" |
| 20 | #include "quote.h" |
| 21 | #include "now.h" |
| 22 | #include "uint32.h" |
| 23 | #include "fmt.h" |
| 24 | #include "errtxt.h" |
| 25 | #include "idx.h" |
| 26 | |
| 27 | #define FATAL "ezmlm-split: fatal: " |
| 28 | #define INFO "ezmlm-split: info: " |
| 29 | |
| 30 | int flagdo = 1; /* default is manager function */ |
| 31 | |
| 32 | char *sender; |
| 33 | char *split; |
| 34 | stralloc outhost = {0}; |
| 35 | stralloc inlocal = {0}; |
| 36 | stralloc outlocal = {0}; |
| 37 | stralloc target = {0}; |
| 38 | stralloc lctarget = {0}; |
| 39 | stralloc line = {0}; |
| 40 | stralloc domain = {0}; |
| 41 | stralloc name = {0}; |
| 42 | stralloc from = {0}; |
| 43 | stralloc to = {0}; |
| 44 | char strnum[FMT_ULONG]; |
| 45 | unsigned long lineno; |
| 46 | int flagfound; |
| 47 | |
| 48 | void die_usage() { |
| 49 | strerr_die1x(100,"ezmlm-split: usage: ezmlm-split [-dD] dir [splitfile]"); } |
| 50 | |
| 51 | void die_nomem() { strerr_die2x(111,FATAL,ERR_NOMEM); } |
| 52 | |
| 53 | void die_badaddr() |
| 54 | { |
| 55 | strerr_die2x(100,FATAL,ERR_BAD_ADDRESS); |
| 56 | } |
| 57 | |
| 58 | void die_syntax() |
| 59 | { |
| 60 | strnum[fmt_ulong(strnum,lineno)] = '\0'; |
| 61 | strerr_die6x(111,FATAL,split," syntax error line ",strnum,": ",line.s); |
| 62 | } |
| 63 | |
| 64 | char spbuf[1024]; /* should normally hold entire file */ |
| 65 | substdio sssp; |
| 66 | |
| 67 | struct qmail qq; |
| 68 | int qqwrite(fd,buf,len) int fd; char *buf; unsigned int len; |
| 69 | { |
| 70 | qmail_put(&qq,buf,len); |
| 71 | return (int) len; |
| 72 | } |
| 73 | char qqbuf[1]; |
| 74 | substdio ssqq = SUBSTDIO_FDBUF(qqwrite,-1,qqbuf,(int) sizeof(qqbuf)); |
| 75 | |
| 76 | char outbuf[1]; |
| 77 | substdio ssout = SUBSTDIO_FDBUF(write,1,outbuf,(int) sizeof(outbuf)); |
| 78 | |
| 79 | char inbuf[1024]; |
| 80 | substdio ssin = SUBSTDIO_FDBUF(read,0,inbuf,(int) sizeof(inbuf)); |
| 81 | |
| 82 | int findname() |
| 83 | /* returns 1 if a matching line was found, 0 otherwise. name will contain */ |
| 84 | /* the correct list address in either case */ |
| 85 | { |
| 86 | char *cpat,*cp,*cpname,*cp1,*cp2,*cplast; |
| 87 | unsigned long u; |
| 88 | uint32 h; |
| 89 | unsigned char hash,hash_hi,hash_lo; |
| 90 | unsigned int pos,pos_name,pos_hi; |
| 91 | char ch; |
| 92 | int fd,match; |
| 93 | |
| 94 | /* make case insensitive hash */ |
| 95 | flagfound = 0; /* default */ |
| 96 | cpname = ""; /* default */ |
| 97 | if (!stralloc_copy(&lctarget,&target)) die_nomem(); |
| 98 | case_lowerb(lctarget.s,lctarget.len -1); |
| 99 | h = 5381; |
| 100 | cp = lctarget.s; |
| 101 | while ((ch = *cp++)) { |
| 102 | h = (h + (h << 5)) ^ (uint32) ch; |
| 103 | } |
| 104 | hash = (h % 53); |
| 105 | |
| 106 | /* make domain pointer */ |
| 107 | cpat = lctarget.s + str_chr(lctarget.s,'@'); |
| 108 | if (!*cpat) |
| 109 | strerr_die4x(100,FATAL,ERR_ADDR_AT,": ",target.s); |
| 110 | cplast = cpat + str_len(cpat) - 1; |
| 111 | if (*cplast == '.') --cplast; /* annonying special case */ |
| 112 | cp1 = cpat + byte_rchr(cpat,cplast - cpat, '.'); |
| 113 | if (cp1 != cplast) { /* got one '.' */ |
| 114 | if (!stralloc_copyb(&domain,cp1 + 1, cplast - cp1)) die_nomem(); |
| 115 | cp2 = cpat + byte_rchr(cpat, cp1 - cpat,'.'); |
| 116 | if (cp2 == cp1) cp2 = cpat; |
| 117 | ++cp2; |
| 118 | if (!stralloc_append(&domain,".")) die_nomem(); |
| 119 | if (!stralloc_catb(&domain,cp2, cp1 - cp2)) die_nomem(); |
| 120 | } else /* no '.' */ |
| 121 | if (!stralloc_copyb(&domain,cpat + 1,cplast - cpat)) die_nomem(); |
| 122 | if (!stralloc_0(&domain)) die_nomem(); |
| 123 | |
| 124 | if ((fd = open_read(split)) == -1) |
| 125 | strerr_die4sys(111,FATAL,ERR_OPEN,split,": "); |
| 126 | substdio_fdbuf(&sssp,read,fd,spbuf,(int) sizeof(spbuf)); |
| 127 | lineno = 0; |
| 128 | for (;;) { /* dom:hash_lo:hash_hi:listaddress */ |
| 129 | if (getln(&sssp,&line,&match,'\n') == -1) |
| 130 | strerr_die4sys(111,FATAL,ERR_READ,split,": "); |
| 131 | lineno++; |
| 132 | if (!match) |
| 133 | break; |
| 134 | if (line.s[0] == '#') continue; /* comment */ |
| 135 | line.s[line.len - 1] = '\0'; /* no need to allow \0 in lines */ |
| 136 | if (!line.s[pos = str_chr(line.s,':')]) |
| 137 | continue; /* usually blank line */ |
| 138 | line.s[pos] = '\0'; |
| 139 | if (pos == 0 || /* no domain */ |
| 140 | (case_starts(domain.s,line.s))) { /* or matching domain */ |
| 141 | if (!line.s[++pos]) die_syntax(); |
| 142 | pos_hi = pos + str_chr(line.s + pos,':'); |
| 143 | if (!line.s[pos_hi]) die_syntax(); |
| 144 | pos_hi++; |
| 145 | (void) scan_ulong(line.s + pos, &u); /* scan_uint() not in ezmlm */ |
| 146 | hash_lo = (unsigned char) u; |
| 147 | (void) scan_ulong(line.s + pos_hi, &u); |
| 148 | hash_hi = (unsigned char) u; |
| 149 | pos_name = pos_hi + str_chr(line.s + pos_hi,':'); |
| 150 | if (pos_hi == pos_name) hash_hi = 52L; /* default hi = 52 */ |
| 151 | if (line.s[pos_name]) pos_name++; |
| 152 | if (hash > hash_hi || hash < hash_lo) continue; /* not us */ |
| 153 | cpname = line.s + pos_name; |
| 154 | while (*cpname && /* isolate name */ |
| 155 | (*cpname == ' ' || *cpname == '\t')) cpname++; |
| 156 | pos = line.len - 2; |
| 157 | while (pos && (line.s[pos] == '\n' || line.s[pos] == ' ' || |
| 158 | line.s[pos] == '\t')) line.s[pos--] = '\0'; |
| 159 | break; |
| 160 | } |
| 161 | } |
| 162 | close(fd); |
| 163 | |
| 164 | if (*cpname) { |
| 165 | if (!stralloc_copys(&name,cpname)) die_nomem(); |
| 166 | if (byte_chr(name.s,name.len,'@') == name.len) { /* local sublist */ |
| 167 | if (!stralloc_append(&name,"@")) die_nomem(); |
| 168 | if (!stralloc_cat(&name,&outhost)) die_nomem(); |
| 169 | } |
| 170 | if (!stralloc_0(&name)) die_nomem(); |
| 171 | return 1; |
| 172 | } else { /* match without name or no match =>this list */ |
| 173 | if (!stralloc_copy(&name,&outlocal)) die_nomem(); |
| 174 | if (!stralloc_append(&name,"@")) die_nomem(); |
| 175 | if (!stralloc_cat(&name,&outhost)) die_nomem(); |
| 176 | if (!stralloc_0(&name)) die_nomem(); |
| 177 | return 0; |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | void main(argc,argv) |
| 182 | int argc; |
| 183 | char **argv; |
| 184 | { |
| 185 | char *dir; |
| 186 | char *local; |
| 187 | char *action; |
| 188 | char *def; |
| 189 | char *dtline; |
| 190 | char *nhost; |
| 191 | char *err; |
| 192 | unsigned int i; |
| 193 | int match; |
| 194 | int optind = 1; |
| 195 | |
| 196 | sig_pipeignore(); |
| 197 | |
| 198 | dir = argv[optind++]; |
| 199 | if (!dir) die_usage(); |
| 200 | if (dir[0] == '-') { |
| 201 | if (dir[1] == 'd') flagdo = 1; |
| 202 | else if (dir[1] == 'D') flagdo = 0; |
| 203 | else die_usage(); |
| 204 | if (!(dir = argv[optind++])) die_usage(); |
| 205 | } |
| 206 | if (!(split = argv[optind])) |
| 207 | split = "split"; |
| 208 | |
| 209 | if (chdir(dir) == -1) |
| 210 | strerr_die4sys(111,FATAL,ERR_SWITCH,dir,": "); |
| 211 | |
| 212 | getconf_line(&outhost,"outhost",1,FATAL,dir); |
| 213 | getconf_line(&outlocal,"outlocal",1,FATAL,dir); |
| 214 | |
| 215 | if (flagdo) { |
| 216 | sender = env_get("SENDER"); |
| 217 | if (!sender) strerr_die2x(100,FATAL,ERR_NOSENDER); |
| 218 | if (!*sender) |
| 219 | strerr_die2x(100,FATAL,ERR_BOUNCE); |
| 220 | if (!sender[str_chr(sender,'@')]) |
| 221 | strerr_die2x(100,FATAL,ERR_ANONYMOUS); |
| 222 | if (str_equal(sender,"#@[]")) |
| 223 | strerr_die2x(100,FATAL,ERR_BOUNCE); |
| 224 | |
| 225 | def = env_get("DEFAULT"); |
| 226 | if (def) { |
| 227 | action = def; |
| 228 | } else { |
| 229 | local = env_get("LOCAL"); |
| 230 | if (!local) strerr_die2x(100,FATAL,ERR_NOLOCAL); |
| 231 | getconf_line(&inlocal,"inlocal",1,FATAL,dir); |
| 232 | if (inlocal.len > str_len(local)) die_badaddr(); |
| 233 | if (case_diffb(inlocal.s,inlocal.len,local)) die_badaddr(); |
| 234 | action = local + inlocal.len + 1; |
| 235 | } |
| 236 | if (!stralloc_copys(&target,sender)) die_nomem(); |
| 237 | if (action[0]) { |
| 238 | i = str_chr(action,'-'); |
| 239 | if (action[i]) { |
| 240 | action[i] = '\0'; |
| 241 | if (!stralloc_copys(&target,action + i + 1)) die_nomem(); |
| 242 | i = byte_rchr(target.s,target.len,'='); |
| 243 | if (i < target.len) |
| 244 | target.s[i] = '@'; |
| 245 | } |
| 246 | } |
| 247 | if (!stralloc_0(&target)) die_nomem(); |
| 248 | |
| 249 | if (case_diffs(action,ACTION_SUBSCRIBE) && |
| 250 | case_diffs(action,ALT_SUBSCRIBE) && |
| 251 | case_diffs(action,ACTION_UNSUBSCRIBE) && |
| 252 | case_diffs(action,ALT_UNSUBSCRIBE)) |
| 253 | _exit(0); /* not for us */ |
| 254 | |
| 255 | if (findname()) { |
| 256 | /* new sender */ |
| 257 | if (!stralloc_copy(&from,&outlocal)) die_nomem(); |
| 258 | if (!stralloc_cats(&from,"-return-@")) die_nomem(); |
| 259 | if (!stralloc_cat(&from,&outhost)) die_nomem(); |
| 260 | if (!stralloc_0(&from)) die_nomem(); |
| 261 | if (name.s[i = str_rchr(name.s,'@')]) { /* name must have '@'*/ |
| 262 | nhost = name.s + i; |
| 263 | *(nhost++) = '\0'; |
| 264 | } |
| 265 | if (!stralloc_copys(&to,name.s)) die_nomem(); /* local */ |
| 266 | if (!stralloc_append(&to,"-")) die_nomem(); /* - */ |
| 267 | if (!stralloc_cats(&to,action)) die_nomem(); /* subscribe */ |
| 268 | if (!stralloc_append(&to,"-")) die_nomem(); /* - */ |
| 269 | if (target.s[i = str_rchr(target.s,'@')]) |
| 270 | target.s[i] = '='; |
| 271 | if (!stralloc_cats(&to,target.s)) die_nomem(); /* target */ |
| 272 | if (!stralloc_append(&to,"@")) die_nomem(); /* - */ |
| 273 | if (!stralloc_cats(&to,nhost)) die_nomem(); /* host */ |
| 274 | if (!stralloc_0(&to)) die_nomem(); |
| 275 | dtline = env_get("DTLINE"); |
| 276 | if (!dtline) strerr_die2x(100,FATAL,ERR_NODTLINE); |
| 277 | |
| 278 | if (qmail_open(&qq,(stralloc *) 0) == -1) |
| 279 | strerr_die2sys(111,FATAL,ERR_QMAIL_QUEUE); |
| 280 | qmail_puts(&qq,dtline); /* delivered-to */ |
| 281 | if (substdio_copy(&ssqq,&ssin) != 0) |
| 282 | strerr_die2sys(111,FATAL,ERR_READ_INPUT); |
| 283 | qmail_from(&qq,from.s); |
| 284 | qmail_to(&qq,to.s); |
| 285 | |
| 286 | if (*(err = qmail_close(&qq)) != '\0') |
| 287 | strerr_die3x(111,FATAL,ERR_TMP_QMAIL_QUEUE,err + 1); |
| 288 | |
| 289 | strnum[fmt_ulong(strnum,qmail_qp(&qq))] = 0; |
| 290 | strerr_die3x(99,INFO,"qp ",strnum); |
| 291 | } |
| 292 | _exit(0); |
| 293 | } else { |
| 294 | |
| 295 | for (;;) { |
| 296 | if (getln(&ssin,&line,&match,'\n') == -1) |
| 297 | strerr_die2sys(111,FATAL,ERR_READ_INPUT); |
| 298 | if (!match) break; |
| 299 | if (line.len == 1) continue; /* ignore blank lines */ |
| 300 | if (line.s[0] == '#') continue; /* ignore comments */ |
| 301 | if (!stralloc_copy(&target,&line)) die_nomem(); |
| 302 | target.s[target.len - 1] = '\0'; |
| 303 | (void) findname(); |
| 304 | if (!stralloc_cats(&name,": ")) die_nomem(); |
| 305 | if (!stralloc_cats(&name,target.s)) die_nomem(); |
| 306 | if (!stralloc_append(&name,"\n")) die_nomem(); |
| 307 | if (substdio_put(&ssout,name.s,name.len) == -1) |
| 308 | strerr_die2sys(111,ERR_WRITE,"output: "); |
| 309 | } |
| 310 | if (substdio_flush(&ssout) == -1) |
| 311 | strerr_die2sys(111,ERR_FLUSH,"output: "); |
| 312 | _exit(0); |
| 313 | } |
| 314 | } |
| 315 | |
| 316 | |