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#include <unistd.h>
#include "sig.h"
#include "exit.h"
#include "env.h"
#include "logmsg.h"
#include "wait.h"
#include "seek.h"
#include "qmail.h"
#include "buffer.h"
#include "fmt.h"
#define WHO "condredirect"
struct qmail qqt;
ssize_t mywrite(int fd,char *buf,int len)
{
qmail_put(&qqt,buf,len);
return len;
}
char inbuf[BUFSIZE_LINE];
buffer bi = BUFFER_INIT(read,0,inbuf,sizeof(inbuf));
char outbuf[BUFSIZE_LINE];
buffer bo = BUFFER_INIT(mywrite,-1,outbuf,sizeof(outbuf));
char num[FMT_ULONG];
int main(int argc,char **argv)
{
char *sender;
char *dtline;
int pid;
int wstat;
char *qqx;
if (!argv[1] || !argv[2])
logmsg(WHO,100,USAGE,"condredirect newaddress program [ arg ... ]");
pid = fork();
if (pid == -1)
logmsg(WHO,111,FATAL,"unable to fork: ");
if (pid == 0) {
execvp(argv[2],argv + 2);
if (errno) _exit(111);
_exit(100);
}
if (wait_pid(&wstat,pid) == -1)
logmsg(WHO,111,FATAL,"wait failed");
if (wait_crashed(wstat))
logmsg(WHO,111,FATAL,"child crashed");
switch (wait_exitcode(wstat)) {
case 0: break;
case 111: logmsg(WHO,111,FATAL,"temporary child error");
default: _exit(0);
}
if (seek_begin(0) == -1)
logmsg(WHO,111,FATAL,"unable to rewind: ");
sig_pipeignore();
sender = env_get("SENDER");
if (!sender) logmsg(WHO,100,ERROR,"SENDER not set");
dtline = env_get("DTLINE");
if (!dtline) logmsg(WHO,100,ERROR,"DTLINE not set");
if (qmail_open(&qqt) == -1)
logmsg(WHO,111,FATAL,"unable to fork: ");
qmail_puts(&qqt,dtline);
if (buffer_copy(&bo,&bi) != 0)
logmsg(WHO,111,FATAL,"unable to read message: ");
buffer_flush(&bo);
num[fmt_ulong(num,qmail_qp(&qqt))] = 0;
qmail_from(&qqt,sender);
qmail_to(&qqt,argv[1]);
qqx = qmail_close(&qqt);
if (*qqx) logmsg(WHO,*qqx == 'D' ? 100 : 111,FATAL,qqx + 1);
logmsg(WHO,99,INFO,B("qp ",num));
}
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