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