| 1 | #include "strerr.h" |
| 2 | #include "substdio.h" |
| 3 | #include "readwrite.h" |
| 4 | #include "stralloc.h" |
| 5 | #include "getln.h" |
| 6 | #include "sgetopt.h" |
| 7 | |
| 8 | int flagrejectcommands = 1; |
| 9 | int flagneedsubject = 1; |
| 10 | |
| 11 | int flaghavesubject = 0; |
| 12 | int flaghavecommand = 0; |
| 13 | |
| 14 | char buf0[256]; |
| 15 | substdio ss0 = SUBSTDIO_FDBUF(read,0,buf0,sizeof(buf0)); |
| 16 | stralloc line = {0}; |
| 17 | |
| 18 | void main(argc,argv) |
| 19 | int argc; |
| 20 | char **argv; |
| 21 | { |
| 22 | int opt; |
| 23 | char *x; |
| 24 | int len; |
| 25 | int match; |
| 26 | |
| 27 | while ((opt = getopt(argc,argv,"cCsS")) != opteof) |
| 28 | switch(opt) { |
| 29 | case 'c': flagrejectcommands = 1; break; |
| 30 | case 'C': flagrejectcommands = 0; break; |
| 31 | case 's': flagneedsubject = 1; break; |
| 32 | case 'S': flagneedsubject = 0; break; |
| 33 | default: |
| 34 | strerr_die1x(100,"ezmlm-reject: usage: ezmlm-reject [ -cCsS ]"); |
| 35 | } |
| 36 | |
| 37 | for (;;) { |
| 38 | if (getln(&ss0,&line,&match,'\n') == -1) |
| 39 | strerr_die2sys(111,"ezmlm-reject: fatal: ","unable to read input: "); |
| 40 | if (!match) break; |
| 41 | if (line.len == 1) break; |
| 42 | |
| 43 | x = line.s; len = line.len - 1; |
| 44 | while (len && ((x[len - 1] == ' ') || (x[len - 1] == '\t'))) --len; |
| 45 | |
| 46 | if (case_startb(x,len,"subject:")) { |
| 47 | x += 8; len -= 8; |
| 48 | while (len && ((*x == ' ') || (*x == '\t'))) { ++x; --len; } |
| 49 | if (len) { |
| 50 | flaghavesubject = 1; |
| 51 | |
| 52 | if (len == 4) |
| 53 | if (!case_diffb("help",4,x)) |
| 54 | flaghavecommand = 1; |
| 55 | |
| 56 | if (len == 9) |
| 57 | if (!case_diffb("subscribe",9,x)) |
| 58 | flaghavecommand = 1; |
| 59 | |
| 60 | if (len == 11) |
| 61 | if (!case_diffb("unsubscribe",11,x)) |
| 62 | flaghavecommand = 1; |
| 63 | } |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | if (flagneedsubject && !flaghavesubject) |
| 68 | strerr_die1x(100,"\ |
| 69 | ezmlm-reject: fatal: I need a nonempty Subject line in every message.\n\ |
| 70 | If you are trying to subscribe or unsubscribe, WRONG ADDRESS!\n\ |
| 71 | Do not send administrative requests to the mailing list.\n\ |
| 72 | Send an empty message to ...-help@... for automated assistance."); |
| 73 | |
| 74 | if (flagrejectcommands && flaghavecommand) |
| 75 | strerr_die1x(100,"\ |
| 76 | ezmlm-reject: fatal: Your Subject line looks like a command word.\n\ |
| 77 | If you are trying to subscribe or unsubscribe, WRONG ADDRESS!\n\ |
| 78 | Do not send administrative requests to the mailing list.\n\ |
| 79 | Send an empty message to ...-help@... for automated assistance."); |
| 80 | |
| 81 | _exit(0); |
| 82 | } |