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- #include "sig.h"
- #include "readwrite.h"
- #include "exit.h"
- #include "env.h"
- #include "error.h"
- #include "fork.h"
- #include "wait.h"
- #include "seek.h"
- #include "qmail.h"
- #include "stralloc.h"
- #include "subfd.h"
- #include "substdio.h"
-
- void die_success() { _exit(0); }
- void die_99() { _exit(99); }
- void die_perm(s) char *s; { substdio_putsflush(subfderr,s); _exit(100); }
- void die_temp(s) char *s; { substdio_putsflush(subfderr,s); _exit(111); }
- void die_nomem() { die_temp("condredirect: fatal: out of memory\n"); }
-
- struct qmail qqt;
-
- int mywrite(fd,buf,len) int fd; char *buf; int len;
- {
- qmail_put(&qqt,buf,len);
- return len;
- }
-
- substdio ssin;
- substdio ssout;
- char inbuf[SUBSTDIO_INSIZE];
- char outbuf[16];
-
- void main(argc,argv)
- int argc;
- char **argv;
- {
- char *sender;
- char *dtline;
- int pid;
- int wstat;
-
- if (!argv[1] || !argv[2])
- die_perm("condredirect: usage: condredirect newaddress program arg ...\n");
-
- switch(pid = fork())
- {
- case -1: die_temp("condredirect: fatal: unable to fork\n");
- case 0:
- execvp(argv[2],argv + 2);
- if (error_temp(errno)) _exit(111);
- _exit(100);
- }
- if (wait_pid(&wstat,pid) != pid)
- die_perm("condredirect: fatal: internal bug\n");
- if (wait_crashed(wstat)) die_temp("condredirect: fatal: child crashed\n");
- switch(wait_exitcode(wstat))
- {
- case 0: break;
- case 111: die_temp("condredirect: fatal: temporary child error\n");
- default: die_success();
- }
-
- if (seek_begin(0) == -1) die_temp("condredirect: fatal: unable to rewind\n");
- sig_pipeignore();
-
- sender = env_get("SENDER");
- if (!sender) die_perm("condredirect: fatal: SENDER not set\n");
- dtline = env_get("DTLINE");
- if (!dtline) die_perm("condredirect: fatal: DTLINE not set\n");
-
- if (qmail_open(&qqt) == -1) die_temp("condredirect: fatal: unable to fork\n");
- qmail_puts(&qqt,dtline);
- substdio_fdbuf(&ssin,read,0,inbuf,sizeof(inbuf));
- substdio_fdbuf(&ssout,mywrite,-1,outbuf,sizeof(outbuf));
- if (substdio_copy(&ssout,&ssin) != 0)
- die_temp("condredirect: fatal: error while reading message\n");
- substdio_flush(&ssout);
-
- qmail_from(&qqt,sender);
- qmail_to(&qqt,argv[1]);
- switch(qmail_close(&qqt))
- {
- case 0: die_99();
- case QMAIL_TOOLONG: die_perm("condredirect: fatal: permanent qmail-queue error\n");
- default: die_temp("condredirect: fatal: temporary qmail-queue error\n");
- }
- }
-