103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
#include "substdio.h"
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#include "readwrite.h"
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#include "wait.h"
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#include "exit.h"
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#include "fork.h"
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#include "fd.h"
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#include "qmail.h"
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#include "auto_qmail.h"
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static char *binqqargs[2] = { "bin/qmail-queue", 0 } ;
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int qmail_open(qq)
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struct qmail *qq;
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{
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int pim[2];
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int pie[2];
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if (pipe(pim) == -1) return -1;
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if (pipe(pie) == -1) { close(pim[0]); close(pim[1]); return -1; }
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switch(qq->pid = vfork()) {
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case -1:
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close(pim[0]); close(pim[1]);
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close(pie[0]); close(pie[1]);
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return -1;
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case 0:
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close(pim[1]);
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close(pie[1]);
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if (fd_move(0,pim[0]) == -1) _exit(120);
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if (fd_move(1,pie[0]) == -1) _exit(120);
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if (chdir(auto_qmail) == -1) _exit(120);
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execv(*binqqargs,binqqargs);
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_exit(120);
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}
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qq->fdm = pim[1]; close(pim[0]);
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qq->fde = pie[1]; close(pie[0]);
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substdio_fdbuf(&qq->ss,write,qq->fdm,qq->buf,sizeof(qq->buf));
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qq->flagerr = 0;
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return 0;
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}
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unsigned long qmail_qp(qq) struct qmail *qq;
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{
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return qq->pid;
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}
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void qmail_fail(qq) struct qmail *qq;
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{
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qq->flagerr = 1;
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}
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void qmail_put(qq,s,len) struct qmail *qq; char *s; int len;
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{
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if (!qq->flagerr) if (substdio_put(&qq->ss,s,len) == -1) qq->flagerr = 1;
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}
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void qmail_puts(qq,s) struct qmail *qq; char *s;
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{
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if (!qq->flagerr) if (substdio_puts(&qq->ss,s) == -1) qq->flagerr = 1;
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}
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void qmail_from(qq,s) struct qmail *qq; char *s;
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{
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if (substdio_flush(&qq->ss) == -1) qq->flagerr = 1;
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close(qq->fdm);
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substdio_fdbuf(&qq->ss,write,qq->fde,qq->buf,sizeof(qq->buf));
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qmail_put(qq,"F",1);
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qmail_puts(qq,s);
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qmail_put(qq,"",1);
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}
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void qmail_to(qq,s) struct qmail *qq; char *s;
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{
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qmail_put(qq,"T",1);
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qmail_puts(qq,s);
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qmail_put(qq,"",1);
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}
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int qmail_close(qq)
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struct qmail *qq;
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{
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int wstat;
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qmail_put(qq,"",1);
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if (!qq->flagerr) if (substdio_flush(&qq->ss) == -1) qq->flagerr = 1;
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close(qq->fde);
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if (wait_pid(&wstat,qq->pid) != qq->pid) return QMAIL_WAITPID;
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if (wait_crashed(wstat)) return QMAIL_CRASHED;
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switch(wait_exitcode(wstat)) {
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case 0: if (qq->flagerr) return QMAIL_BUG; return 0;
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case 112: return QMAIL_USAGE;
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case 115: return QMAIL_TOOLONG;
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case 103: case 104: case 105: case 106: case 108: return QMAIL_SYS;
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case 121: return QMAIL_READ;
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case 122: return QMAIL_WRITE;
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case 123: return QMAIL_NOMEM;
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case 124: return QMAIL_TIMEOUT;
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case 120: return QMAIL_EXECSOFT;
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default: /* 101 or 102 */ return QMAIL_BUG;
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}
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}
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