projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| ddcb4516 BJ |
1 | # |
| 2 | ||
| 3 | /* | |
| 4 | * mail command usage | |
| 5 | * mail [-yn] | |
| 6 | * prints your mail | |
| 7 | * mail people | |
| 8 | * sends standard input to people | |
| 9 | * | |
| 10 | * mail -r machine user people | |
| 11 | * sends mail from the network | |
| 12 | */ | |
| 13 | ||
| 14 | #define SIGINT 2 | |
| 15 | #define DIRECT 040000 | |
| 16 | #define RMAILCMD "/usr/net/bin/sendmail" | |
| 17 | ||
| 18 | struct inode { | |
| 19 | char minor; | |
| 20 | char major; | |
| 21 | int inumber; | |
| 22 | int flags; | |
| 23 | char nlinks; | |
| 24 | char uid; | |
| 25 | char gid; | |
| 26 | char size0; | |
| 27 | int size1; | |
| 28 | int addr[8]; | |
| 29 | int actime[2]; | |
| 30 | int modtime[2]; | |
| 31 | } inode; | |
| 32 | ||
| 33 | char lettmp[] "/tmp/maXXXXX"; | |
| 34 | char preptmp[] "/tmp/mbXXXXX"; | |
| 35 | int pwfil; | |
| 36 | int chew; | |
| 37 | int errs; | |
| 38 | ||
| 39 | main(argc, argv) | |
| 40 | char **argv; | |
| 41 | { | |
| 42 | register int me; | |
| 43 | extern int fout; | |
| 44 | int uf, delexit(); | |
| 45 | char namebuf[20]; | |
| 46 | ||
| 47 | mktemp(lettmp); | |
| 48 | mktemp(preptmp); | |
| 49 | unlink(lettmp); | |
| 50 | unlink(preptmp); | |
| 51 | me = getuid(); | |
| 52 | if (getname(me, namebuf) < 0) { | |
| 53 | printf("Who are you?\n"); | |
| 54 | delexit(1); | |
| 55 | } | |
| 56 | if (argc < 2) | |
| 57 | goto hitit; | |
| 58 | for (argc--, argv++; argc > 0 && argv[0][0] == '-'; argc--, argv++) | |
| 59 | switch(argv[0][1]) { | |
| 60 | register char *cp, *np; | |
| 61 | ||
| 62 | case 'y': | |
| 63 | case 'n': | |
| 64 | argc++, argv--; | |
| 65 | hitit: | |
| 66 | printmail(argc, argv, namebuf); | |
| 67 | delexit(0); | |
| 68 | ||
| 69 | case 'r': | |
| 70 | if (argc < 2) | |
| 71 | continue; | |
| 72 | if (!equal("network", namebuf) && me != 0) { | |
| 73 | printf("Nice try!\n"); | |
| 74 | delexit(1); | |
| 75 | } | |
| 76 | chew++; | |
| 77 | np = namebuf; | |
| 78 | for (cp = argv[1]; *cp; cp++) | |
| 79 | *np++ = *cp; | |
| 80 | argc--, argv++; | |
| 81 | *np++ = ':'; | |
| 82 | for (cp = argv[1]; *cp; cp++) | |
| 83 | *np++ = *cp; | |
| 84 | *np++ = 0; | |
| 85 | argc--, argv++; | |
| 86 | continue; | |
| 87 | } | |
| 88 | if ((signal(SIGINT, 01) & 01) == 0) | |
| 89 | signal(SIGINT, delexit); | |
| 90 | unlink(lettmp); | |
| 91 | fout = creat(lettmp, 0600); | |
| 92 | if (fout < 0) { | |
| 93 | fout = 1; | |
| 94 | perror(lettmp); | |
| 95 | delexit(1); | |
| 96 | } | |
| 97 | argc++, argv--; | |
| 98 | bulkmail(argc, argv, namebuf); | |
| 99 | delexit(0); | |
| 100 | } | |
| 101 | ||
| 102 | printmail(argc, argv, name) | |
| 103 | char **argv; | |
| 104 | char *name; | |
| 105 | { | |
| 106 | extern int fin, fout; | |
| 107 | register n, c, f; | |
| 108 | char *mname; | |
| 109 | ||
| 110 | mname = cat("/usr/mail/", name); | |
| 111 | if (stat(mname, &inode)>=0 && inode.nlinks==1 && | |
| 112 | fopen(mname, &fin)>=0 && (c = getchar())) { | |
| 113 | putchar(c); | |
| 114 | getput(); | |
| 115 | close(fin); | |
| 116 | c = 'y'; | |
| 117 | if (argc<2) { | |
| 118 | if (ttyn(0)!='x') { | |
| 119 | printf("Save?"); | |
| 120 | fin = 0; | |
| 121 | c = getchar(); | |
| 122 | } | |
| 123 | } else | |
| 124 | c = argv[1][1]; | |
| 125 | if (!any(c, "yn")) | |
| 126 | delexit(0); | |
| 127 | if (c == 'y') { | |
| 128 | if (accesss("mbox")) { | |
| 129 | printf("Saved mail in 'mbox'\n"); | |
| 130 | prepend(mname, "mbox", getuid()); | |
| 131 | unlink(mname); | |
| 132 | } else | |
| 133 | printf("In wrong directory\n"); | |
| 134 | } else | |
| 135 | unlink(mname); | |
| 136 | } else | |
| 137 | printf("No mail.\n"); | |
| 138 | } | |
| 139 | ||
| 140 | bulkmail(argc, argv, from) | |
| 141 | char **argv, *from; | |
| 142 | { | |
| 143 | extern int fin, fout; | |
| 144 | register int c; | |
| 145 | int tbuf[2], ttyn1; | |
| 146 | ||
| 147 | fin = 0; | |
| 148 | (&fin)[1] = 0; | |
| 149 | time(tbuf); | |
| 150 | ttyn1 = ttyn(1); | |
| 151 | if (ttyn1 < 033) { | |
| 152 | ttyn1 =+ 'a' - 1; | |
| 153 | ttyn1 =<< 8; | |
| 154 | ttyn1 =| '^'; | |
| 155 | } | |
| 156 | printf("From %s tty%c %s", from, ttyn1, ctime(tbuf)); | |
| 157 | if (chew) | |
| 158 | do { | |
| 159 | c = getchar(); | |
| 160 | } while (c != '\n' && c != 0); | |
| 161 | getput(); | |
| 162 | putchar('\n'); | |
| 163 | flush(); | |
| 164 | close(fout); | |
| 165 | while (--argc > 0) | |
| 166 | sendto(*++argv); | |
| 167 | delexit(errs); | |
| 168 | } | |
| 169 | ||
| 170 | sendto(person) | |
| 171 | char *person; | |
| 172 | { | |
| 173 | static int saved; | |
| 174 | extern int fout, fin; | |
| 175 | register char *filep; | |
| 176 | register int him; | |
| 177 | ||
| 178 | if ((person[0] == 'y' || person[0] == 'Y') && person[1] == ':') | |
| 179 | person += 2; | |
| 180 | if ((person[0] | ' ') == 'c' && (person[1] | ' ') == 'o' && | |
| 181 | (person[2] | ' ') == 'r' && (person[3] | ' ') == 'y' && | |
| 182 | person[4] == ':') | |
| 183 | person += 5; | |
| 184 | if (any(':', person) || person[0] == 'm' && person[1] == 's' && | |
| 185 | person[2] == 'g' && person[3] == 's' && person[4] == 0) { | |
| 186 | int i = fork(); | |
| 187 | int s; | |
| 188 | ||
| 189 | if (i < 0) { | |
| 190 | perror("fork"); | |
| 191 | goto assback; | |
| 192 | } | |
| 193 | if (i == 0) { | |
| 194 | close(0); | |
| 195 | open(lettmp, 0); | |
| 196 | if (any(':', person)) { | |
| 197 | execl(RMAILCMD,"sendmail", person, 0); | |
| 198 | execl("/usr/bin/sendmail", "sendmail", person, 0); | |
| 199 | execl("/bin/sendmail", "sendmail", person, 0); | |
| 200 | perror("sendmail"); | |
| 201 | } else { | |
| 202 | execl("/usr/new/msgs", "msgs", "-s", 0); | |
| 203 | execl("/usr/bin/msgs", "msgs", "-s", 0); | |
| 204 | } | |
| 205 | exit(12); | |
| 206 | } | |
| 207 | for (;;) { | |
| 208 | register int j = wait(&s); | |
| 209 | if (j == -1) | |
| 210 | goto assback; | |
| 211 | if (j == i) | |
| 212 | break; | |
| 213 | } | |
| 214 | if ((s & 0377) != 0 || (s >> 8) == 12) | |
| 215 | goto assback; | |
| 216 | return; | |
| 217 | } | |
| 218 | ||
| 219 | if ((him = getuserid(person)) == -1) { | |
| 220 | assback: | |
| 221 | fout = 1; | |
| 222 | flush(); | |
| 223 | printf("Can't send to %s.\n", person); | |
| 224 | errs++; | |
| 225 | if (ttyn(0)!='x' && saved==0) { | |
| 226 | saved++; | |
| 227 | if (accesss("dead.letter")) { | |
| 228 | printf("Letter saved in 'dead.letter'\n"); | |
| 229 | prepend(lettmp, "dead.letter", getuid()); | |
| 230 | } else | |
| 231 | printf("In wrong directory\n"); | |
| 232 | } | |
| 233 | return; | |
| 234 | } | |
| 235 | prepend(lettmp, filep=cat("/usr/mail/", person), him); | |
| 236 | } | |
| 237 | ||
| 238 | prepend(from, to, own) | |
| 239 | char *from, *to; | |
| 240 | { | |
| 241 | extern int fin, fout; | |
| 242 | register int sig; | |
| 243 | ||
| 244 | unlink(preptmp); | |
| 245 | if (fcreat(preptmp, &fout) < 0) { | |
| 246 | fout = 1; | |
| 247 | perror("mail"); | |
| 248 | delexit(1); | |
| 249 | } | |
| 250 | chmod(preptmp, 0600); | |
| 251 | if (fopen(from, &fin) < 0) { | |
| 252 | close(fout); | |
| 253 | fout = 1; | |
| 254 | perror("mail"); | |
| 255 | unlink(preptmp); | |
| 256 | return(0); | |
| 257 | } | |
| 258 | getput(); | |
| 259 | close(fin); | |
| 260 | fopen(to, &fin); | |
| 261 | getput(); | |
| 262 | close(fin); | |
| 263 | flush(); | |
| 264 | close(fout); | |
| 265 | sig = signal(SIGINT, 01); | |
| 266 | unlink(to); | |
| 267 | if (fcreat(to, &fout) < 0) { | |
| 268 | unlink(preptmp); | |
| 269 | fout = 1; | |
| 270 | signal(SIGINT, sig); | |
| 271 | return(0); | |
| 272 | } | |
| 273 | chmod(to, 0600); | |
| 274 | chown(to, own); | |
| 275 | if(stat(to, &inode) < 0 || inode.nlinks != 1) { | |
| 276 | close(fout); | |
| 277 | fout = 1; | |
| 278 | unlink(preptmp); | |
| 279 | signal(SIGINT, sig); | |
| 280 | return(0); | |
| 281 | } | |
| 282 | if (fopen(preptmp, &fin) < 0) { | |
| 283 | fout = 1; | |
| 284 | perror("mail"); | |
| 285 | signal(SIGINT, sig); | |
| 286 | errs++; | |
| 287 | return(0); | |
| 288 | } | |
| 289 | getput(); | |
| 290 | flush(); | |
| 291 | close(fout); | |
| 292 | close(fin); | |
| 293 | fout = 1; | |
| 294 | signal(SIGINT, sig); | |
| 295 | return(1); | |
| 296 | } | |
| 297 | ||
| 298 | delexit(ex) | |
| 299 | { | |
| 300 | unlink(lettmp); | |
| 301 | unlink(preptmp); | |
| 302 | exit(ex); | |
| 303 | } | |
| 304 | ||
| 305 | equal(as1, as2) | |
| 306 | { | |
| 307 | register char *s1, *s2; | |
| 308 | ||
| 309 | s1 = as1; | |
| 310 | s2 = as2; | |
| 311 | while (*s1++ == *s2) | |
| 312 | if (*s2++ == 0) | |
| 313 | return(1); | |
| 314 | return(0); | |
| 315 | } | |
| 316 | ||
| 317 | cat(ap1, ap2) | |
| 318 | char *ap1, *ap2; | |
| 319 | { | |
| 320 | register char *p1, *p2; | |
| 321 | static char fn[32]; | |
| 322 | ||
| 323 | p1 = ap1; | |
| 324 | p2 = fn; | |
| 325 | while (*p2++ = *p1++); | |
| 326 | p2--; | |
| 327 | p1 = ap2; | |
| 328 | while (*p2++ = *p1++); | |
| 329 | return(fn); | |
| 330 | } | |
| 331 | ||
| 332 | getput() | |
| 333 | { | |
| 334 | extern int errno; | |
| 335 | register c; | |
| 336 | ||
| 337 | while(c = getchar()) { | |
| 338 | errno = 0; | |
| 339 | putchar(c); | |
| 340 | if(errno) { | |
| 341 | perror("mail"); | |
| 342 | delexit(1); | |
| 343 | } | |
| 344 | } | |
| 345 | } | |
| 346 | ||
| 347 | accesss(s1) | |
| 348 | { | |
| 349 | if (access(".", 2) != -1 && (stat(s1, &inode)<0 || access(s1, 2)==0)) | |
| 350 | return(1); | |
| 351 | return(0); | |
| 352 | } | |
| 353 | ||
| 354 | any(c, str) | |
| 355 | char *str; | |
| 356 | { | |
| 357 | register char *f; | |
| 358 | ||
| 359 | f = str; | |
| 360 | while (*f) | |
| 361 | if (c == *f++) | |
| 362 | return(1); | |
| 363 | return(0); | |
| 364 | } |