~mdw / qmail / blame
| Commit | Line | Data |
|---|---|---|
| 2117e02e MW |
1 | #include "fd.h" |
| 2 | #include "prot.h" | |
| 3 | #include "exit.h" | |
| 4 | #include "fork.h" | |
| 5 | #include "auto_uids.h" | |
| 6 | ||
| 7 | char *(qsargs[]) = { "qmail-send", 0 }; | |
| 8 | char *(qcargs[]) = { "qmail-clean", 0 }; | |
| 9 | char *(qlargs[]) = { "qmail-lspawn", "./Mailbox", 0 }; | |
| 10 | char *(qrargs[]) = { "qmail-rspawn", 0 }; | |
| 11 | ||
| 12 | void die() { _exit(111); } | |
| 13 | ||
| 14 | int pi0[2]; | |
| 15 | int pi1[2]; | |
| 16 | int pi2[2]; | |
| 17 | int pi3[2]; | |
| 18 | int pi4[2]; | |
| 19 | int pi5[2]; | |
| 20 | int pi6[2]; | |
| 21 | ||
| 22 | void close23456() { close(2); close(3); close(4); close(5); close(6); } | |
| 23 | ||
| 24 | void closepipes() { | |
| 25 | close(pi1[0]); close(pi1[1]); close(pi2[0]); close(pi2[1]); | |
| 26 | close(pi3[0]); close(pi3[1]); close(pi4[0]); close(pi4[1]); | |
| 27 | close(pi5[0]); close(pi5[1]); close(pi6[0]); close(pi6[1]); | |
| 28 | } | |
| 29 | ||
| 30 | void main(argc,argv) | |
| 31 | int argc; | |
| 32 | char **argv; | |
| 33 | { | |
| 34 | if (chdir("/") == -1) die(); | |
| 35 | umask(077); | |
| 36 | if (prot_gid(auto_gidq) == -1) die(); | |
| 37 | ||
| 38 | if (fd_copy(2,0) == -1) die(); | |
| 39 | if (fd_copy(3,0) == -1) die(); | |
| 40 | if (fd_copy(4,0) == -1) die(); | |
| 41 | if (fd_copy(5,0) == -1) die(); | |
| 42 | if (fd_copy(6,0) == -1) die(); | |
| 43 | ||
| 44 | if (argv[1]) { | |
| 45 | qlargs[1] = argv[1]; | |
| 46 | ++argv; | |
| 47 | } | |
| 48 | ||
| 49 | if (argv[1]) { | |
| 50 | if (pipe(pi0) == -1) die(); | |
| 51 | switch(fork()) { | |
| 52 | case -1: | |
| 53 | die(); | |
| 54 | case 0: | |
| 55 | if (prot_gid(auto_gidn) == -1) die(); | |
| 56 | if (prot_uid(auto_uidl) == -1) die(); | |
| 57 | close(pi0[1]); | |
| 58 | if (fd_move(0,pi0[0]) == -1) die(); | |
| 59 | close23456(); | |
| 60 | execvp(argv[1],argv + 1); | |
| 61 | die(); | |
| 62 | } | |
| 63 | close(pi0[0]); | |
| 64 | if (fd_move(1,pi0[1]) == -1) die(); | |
| 65 | } | |
| 66 | ||
| 67 | if (pipe(pi1) == -1) die(); | |
| 68 | if (pipe(pi2) == -1) die(); | |
| 69 | if (pipe(pi3) == -1) die(); | |
| 70 | if (pipe(pi4) == -1) die(); | |
| 71 | if (pipe(pi5) == -1) die(); | |
| 72 | if (pipe(pi6) == -1) die(); | |
| 73 | ||
| 74 | switch(fork()) { | |
| 75 | case -1: die(); | |
| 76 | case 0: | |
| 77 | if (fd_copy(0,pi1[0]) == -1) die(); | |
| 78 | if (fd_copy(1,pi2[1]) == -1) die(); | |
| 79 | close23456(); | |
| 80 | closepipes(); | |
| 81 | execvp(*qlargs,qlargs); | |
| 82 | die(); | |
| 83 | } | |
| 84 | ||
| 85 | switch(fork()) { | |
| 86 | case -1: die(); | |
| 87 | case 0: | |
| 88 | if (prot_uid(auto_uidr) == -1) die(); | |
| 89 | if (fd_copy(0,pi3[0]) == -1) die(); | |
| 90 | if (fd_copy(1,pi4[1]) == -1) die(); | |
| 91 | close23456(); | |
| 92 | closepipes(); | |
| 93 | execvp(*qrargs,qrargs); | |
| 94 | die(); | |
| 95 | } | |
| 96 | ||
| 97 | switch(fork()) { | |
| 98 | case -1: die(); | |
| 99 | case 0: | |
| 100 | if (prot_uid(auto_uidq) == -1) die(); | |
| 101 | if (fd_copy(0,pi5[0]) == -1) die(); | |
| 102 | if (fd_copy(1,pi6[1]) == -1) die(); | |
| 103 | close23456(); | |
| 104 | closepipes(); | |
| 105 | execvp(*qcargs,qcargs); | |
| 106 | die(); | |
| 107 | } | |
| 108 | ||
| 109 | if (prot_uid(auto_uids) == -1) die(); | |
| 110 | if (fd_copy(0,1) == -1) die(); | |
| 111 | if (fd_copy(1,pi1[1]) == -1) die(); | |
| 112 | if (fd_copy(2,pi2[0]) == -1) die(); | |
| 113 | if (fd_copy(3,pi3[1]) == -1) die(); | |
| 114 | if (fd_copy(4,pi4[0]) == -1) die(); | |
| 115 | if (fd_copy(5,pi5[1]) == -1) die(); | |
| 116 | if (fd_copy(6,pi6[0]) == -1) die(); | |
| 117 | closepipes(); | |
| 118 | execvp(*qsargs,qsargs); | |
| 119 | die(); | |
| 120 | } |