120 lines
2.7 KiB
C
120 lines
2.7 KiB
C
#include "fd.h"
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#include "prot.h"
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#include "exit.h"
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#include "fork.h"
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#include "auto_uids.h"
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char *(qsargs[]) = { "qmail-send", 0 };
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char *(qcargs[]) = { "qmail-clean", 0 };
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char *(qlargs[]) = { "qmail-lspawn", "./Mailbox", 0 };
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char *(qrargs[]) = { "qmail-rspawn", 0 };
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void die() { _exit(111); }
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int pi0[2];
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int pi1[2];
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int pi2[2];
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int pi3[2];
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int pi4[2];
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int pi5[2];
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int pi6[2];
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void close23456() { close(2); close(3); close(4); close(5); close(6); }
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void closepipes() {
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close(pi1[0]); close(pi1[1]); close(pi2[0]); close(pi2[1]);
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close(pi3[0]); close(pi3[1]); close(pi4[0]); close(pi4[1]);
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close(pi5[0]); close(pi5[1]); close(pi6[0]); close(pi6[1]);
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}
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void main(argc,argv)
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int argc;
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char **argv;
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{
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if (chdir("/") == -1) die();
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umask(077);
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if (prot_gid(auto_gidq) == -1) die();
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if (fd_copy(2,0) == -1) die();
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if (fd_copy(3,0) == -1) die();
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if (fd_copy(4,0) == -1) die();
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if (fd_copy(5,0) == -1) die();
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if (fd_copy(6,0) == -1) die();
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if (argv[1]) {
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qlargs[1] = argv[1];
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++argv;
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}
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if (argv[1]) {
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if (pipe(pi0) == -1) die();
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switch(fork()) {
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case -1:
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die();
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case 0:
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if (prot_gid(auto_gidn) == -1) die();
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if (prot_uid(auto_uidl) == -1) die();
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close(pi0[1]);
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if (fd_move(0,pi0[0]) == -1) die();
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close23456();
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execvp(argv[1],argv + 1);
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die();
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}
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close(pi0[0]);
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if (fd_move(1,pi0[1]) == -1) die();
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}
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if (pipe(pi1) == -1) die();
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if (pipe(pi2) == -1) die();
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if (pipe(pi3) == -1) die();
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if (pipe(pi4) == -1) die();
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if (pipe(pi5) == -1) die();
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if (pipe(pi6) == -1) die();
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switch(fork()) {
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case -1: die();
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case 0:
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if (fd_copy(0,pi1[0]) == -1) die();
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if (fd_copy(1,pi2[1]) == -1) die();
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close23456();
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closepipes();
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execvp(*qlargs,qlargs);
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die();
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}
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switch(fork()) {
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case -1: die();
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case 0:
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if (prot_uid(auto_uidr) == -1) die();
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if (fd_copy(0,pi3[0]) == -1) die();
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if (fd_copy(1,pi4[1]) == -1) die();
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close23456();
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closepipes();
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execvp(*qrargs,qrargs);
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die();
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}
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switch(fork()) {
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case -1: die();
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case 0:
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if (prot_uid(auto_uidq) == -1) die();
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if (fd_copy(0,pi5[0]) == -1) die();
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if (fd_copy(1,pi6[1]) == -1) die();
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close23456();
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closepipes();
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execvp(*qcargs,qcargs);
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die();
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}
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if (prot_uid(auto_uids) == -1) die();
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if (fd_copy(0,1) == -1) die();
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if (fd_copy(1,pi1[1]) == -1) die();
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if (fd_copy(2,pi2[0]) == -1) die();
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if (fd_copy(3,pi3[1]) == -1) die();
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if (fd_copy(4,pi4[0]) == -1) die();
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if (fd_copy(5,pi5[1]) == -1) die();
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if (fd_copy(6,pi6[0]) == -1) die();
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closepipes();
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execvp(*qsargs,qsargs);
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die();
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}
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