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/* dprintf -- printf to a file descriptor */
/* Copyright (C) 2008-2010 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Bash is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Bash. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdc.h>
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif
#if defined (PREFER_STDARG)
# include <stdarg.h>
#else
# include <varargs.h>
#endif
#include <stdio.h>
int
#if defined (PREFER_STDARG)
dprintf(int fd, const char *format, ...)
#else
dprintf(fd, format, va_alist)
int fd;
const char *format;
va_dcl
#endif
{
FILE *fp;
int fd2, rc, r2;
va_list args;
if ((fd2 = dup(fd)) < 0)
return -1;
fp = fdopen (fd2, "w");
if (fp == 0)
{
close (fd2);
return -1;
}
SH_VA_START (args, format);
rc = vfprintf (fp, format, args);
fflush (fp);
va_end (args);
r2 = fclose (fp); /* check here */
return rc;
}
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