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/* Copyright (c) 2000, Len Budney. See COPYING for details. */
#include "env.h"
#include "stralloc.h"
#include "strerr.h"
#include "subfd.h"
#include "substdio.h"
#include "writefile.h"
#include <errno.h>
#include <unistd.h>
extern stralloc tmppath;
/* ****************************************************************** */
void writefile(int fd) {
char inbuf[512];
char outbuf[512];
char *dtline;
char *rpline;
substdio ssin;
substdio ssout;
/* Prepare substdio buffers for reading and writing. */
substdio_fdbuf(&ssin,read,0,inbuf,sizeof(inbuf));
substdio_fdbuf(&ssout,write,fd,outbuf,sizeof(outbuf));
/* Print DTLINE and RPLINE, if supplied. */
dtline = env_get("DTLINE");
rpline = env_get("RPLINE");
if (dtline && rpline) {
if(substdio_puts(&ssout,rpline) == -1) goto fail;
if(substdio_puts(&ssout,dtline) == -1) goto fail;
}
/* Copy stdin to the output file, watching the return values each time. */
if (substdio_copy(&ssout,&ssin) < 0) goto fail;
if (substdio_flush(&ssout) == -1) goto fail;
/* The file is copied. */
return;
fail:
unlink(tmppath.s);
strerr_die2x(111,"safecat: fatal: ","unable to copy standard input");
}
/* ****************************************************************** */
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