diff options
Diffstat (limited to 'src/qmail-start.c')
| -rw-r--r-- | src/qmail-start.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/qmail-start.c b/src/qmail-start.c new file mode 100644 index 0000000..7a7342c --- /dev/null +++ b/src/qmail-start.c @@ -0,0 +1,165 @@ +#include <unistd.h> +#include <sys/stat.h> +#include "fd.h" +#include "prot.h" +#include "exit.h" +#include "auto_uids.h" + +char *(qsargs[]) = { "qmail-send", 0 }; +char *(qcargs[]) = { "qmail-clean", 0 }; +char *(qlargs[]) = { "qmail-lspawn", "./Mailbox", 0 }; +char *(qrargs[]) = { "qmail-rspawn", 0 }; +char *(qtargs[]) = { "qmail-todo", 0}; + +void die() { _exit(111); } + +int pi0[2]; +int pi1[2]; +int pi2[2]; +int pi3[2]; +int pi4[2]; +int pi5[2]; +int pi6[2]; +int pi7[2]; +int pi8[2]; +int pi9[2]; +int pi10[2]; + +void closefds() +{ + close(2); close(3); close(4); close(5); close(6); + close(7); close(8); +} + +void closepipes() +{ + close(pi1[0]); close(pi1[1]); close(pi2[0]); close(pi2[1]); + close(pi3[0]); close(pi3[1]); close(pi4[0]); close(pi4[1]); + close(pi5[0]); close(pi5[1]); close(pi6[0]); close(pi6[1]); + close(pi7[0]); close(pi7[1]); close(pi8[0]); close(pi8[1]); + close(pi9[0]); close(pi9[1]); close(pi10[0]); close(pi10[1]); +} + +int main(int argc,char **argv) +{ + if (chdir("/") == -1) die(); + umask(077); + if (prot_gid(auto_gidq) == -1) die(); + + if (fd_copy(2,0) == -1) die(); + if (fd_copy(3,0) == -1) die(); + if (fd_copy(4,0) == -1) die(); + if (fd_copy(5,0) == -1) die(); + if (fd_copy(6,0) == -1) die(); + if (fd_copy(7,0) == -1) die(); + if (fd_copy(8,0) == -1) die(); + + if (argv[1]) { + qlargs[1] = argv[1]; + ++argv; + } + + if (argv[1]) { + if (pipe(pi0) == -1) die(); + switch (fork()) { + case -1: + die(); + case 0: + if (prot_gid(auto_gidn) == -1) die(); + if (prot_uid(auto_uidl) == -1) die(); + close(pi0[1]); + if (fd_move(0,pi0[0]) == -1) die(); + closefds(); + execvp(argv[1],argv + 1); + die(); + } + close(pi0[0]); + if (fd_move(1,pi0[1]) == -1) die(); + } + + if (pipe(pi1) == -1) die(); + if (pipe(pi2) == -1) die(); + if (pipe(pi3) == -1) die(); + if (pipe(pi4) == -1) die(); + if (pipe(pi5) == -1) die(); + if (pipe(pi6) == -1) die(); + if (pipe(pi7) == -1) die(); + if (pipe(pi8) == -1) die(); + if (pipe(pi9) == -1) die(); + if (pipe(pi10) == -1) die(); + + switch (fork()) { + case -1: die(); + case 0: + if (fd_copy(0,pi1[0]) == -1) die(); + if (fd_copy(1,pi2[1]) == -1) die(); + closefds(); + closepipes(); + execvp(*qlargs,qlargs); + die(); + } + + switch (fork()) { + case -1: die(); + case 0: + if (prot_uid(auto_uidr) == -1) die(); + if (fd_copy(0,pi3[0]) == -1) die(); + if (fd_copy(1,pi4[1]) == -1) die(); + closefds(); + closepipes(); + execvp(*qrargs,qrargs); + die(); + } + + switch (fork()) { + case -1: die(); + case 0: + if (prot_uid(auto_uidq) == -1) die(); + if (fd_copy(0,pi5[0]) == -1) die(); + if (fd_copy(1,pi6[1]) == -1) die(); + closefds(); + closepipes(); + execvp(*qcargs,qcargs); + die(); + } + + switch (fork()) { + case -1: die(); + case 0: + if (prot_uid(auto_uids) == -1) die(); + if (fd_copy(0,pi7[0]) == -1) die(); + if (fd_copy(1,pi8[1]) == -1) die(); + closefds(); + if (fd_copy(2,pi9[1]) == -1) die(); + if (fd_copy(3,pi10[0]) == -1) die(); + closepipes(); + execvp(*qtargs,qtargs); + die(); + } + + switch (fork()) { + case -1: die(); + case 0: + if (prot_uid(auto_uidq) == -1) die(); + if (fd_copy(0,pi9[0]) == -1) die(); + if (fd_copy(1,pi10[1]) == -1) die(); + closefds(); + closepipes(); + execvp(*qcargs,qcargs); + die(); + } + + if (prot_uid(auto_uids) == -1) die(); + if (fd_copy(0,1) == -1) die(); + if (fd_copy(1,pi1[1]) == -1) die(); + if (fd_copy(2,pi2[0]) == -1) die(); + if (fd_copy(3,pi3[1]) == -1) die(); + if (fd_copy(4,pi4[0]) == -1) die(); + if (fd_copy(5,pi5[1]) == -1) die(); + if (fd_copy(6,pi6[0]) == -1) die(); + if (fd_copy(7,pi7[1]) == -1) die(); + if (fd_copy(8,pi8[0]) == -1) die(); + closepipes(); + execvp(*qsargs,qsargs); + die(); +} |