Here is a diff to add support for the POSIX functions dprintf(3)
and vdprintf(3).
Index: lib/libc/shlib_version
===================================================================
RCS file: /cvs/src/lib/libc/shlib_version,v
retrieving revision 1.146
diff -u -p -r1.146 shlib_version
--- lib/libc/shlib_version 3 Dec 2012 20:08:33 -0000 1.146
+++ lib/libc/shlib_version 23 Jan 2013 06:15:32 -0000
@@ -1,4 +1,4 @@
major=66
-minor=1
+minor=2
# note: If changes were made to include/thread_private.h or if system
# calls were added/changed then librthread/shlib_version also be updated.
Index: include/stdio.h
===================================================================
RCS file: /cvs/src/include/stdio.h,v
retrieving revision 1.42
diff -u -p -r1.42 stdio.h
--- include/stdio.h 21 Mar 2012 23:44:35 -0000 1.42
+++ include/stdio.h 23 Jan 2013 06:15:32 -0000
@@ -212,6 +212,9 @@ __END_DECLS
*/
__BEGIN_DECLS
void clearerr(FILE *);
+#if __POSIX_VISIBLE >= 200809
+int dprintf(int, const char * __restrict, ...);
+#endif
int fclose(FILE *);
int feof(FILE *);
int ferror(FILE *);
@@ -272,6 +275,9 @@ int ungetc(int, FILE *);
int vfprintf(FILE *, const char *, __va_list);
int vprintf(const char *, __va_list);
int vsprintf(char *, const char *, __va_list);
+#if __POSIX_VISIBLE >= 200809
+int vdprintf(int, const char * __restrict, __va_list);
+#endif
#if __ISO_C_VISIBLE >= 1999 || __BSD_VISIBLE
int snprintf(char *, size_t, const char *, ...)
Index: lib/libc/stdio/Makefile.inc
===================================================================
RCS file: /cvs/src/lib/libc/stdio/Makefile.inc,v
retrieving revision 1.22
diff -u -p -r1.22 Makefile.inc
--- lib/libc/stdio/Makefile.inc 21 Mar 2012 23:44:35 -0000 1.22
+++ lib/libc/stdio/Makefile.inc 23 Jan 2013 06:15:32 -0000
@@ -19,7 +19,7 @@ SRCS+= asprintf.c clrerr.c fclose.c fdop
putwc.c putwchar.c ungetwc.c \
fwprintf.c swprintf.c vfwprintf.c vswprintf.c vwprintf.c wprintf.c \
fwscanf.c swscanf.c vfwscanf.c vswscanf.c vwscanf.c wscanf.c \
- getdelim.c getline.c
+ getdelim.c getline.c dprintf.c vdprintf.c
MAN+= fclose.3 ferror.3 fflush.3 fgetln.3 fgets.3 fopen.3 fputs.3 \
fread.3 fseek.3 funopen.3 getc.3 mktemp.3 perror.3 printf.3 putc.3 \
@@ -43,7 +43,8 @@ MLINKS+=mktemp.3 mkdtemp.3
MLINKS+=mktemp.3 mkstemps.3
MLINKS+=printf.3 fprintf.3 printf.3 snprintf.3 printf.3 sprintf.3 \
printf.3 vfprintf.3 printf.3 vprintf.3 printf.3 vsnprintf.3 \
- printf.3 vsprintf.3 printf.3 asprintf.3 printf.3 vasprintf.3
+ printf.3 vsprintf.3 printf.3 asprintf.3 printf.3 vasprintf.3 \
+ printf.3 dprintf.3 printf.3 vdprintf.3
MLINKS+=putc.3 fputc.3 putc.3 putchar.3 putc.3 putw.3
MLINKS+=scanf.3 fscanf.3 scanf.3 sscanf.3 scanf.3 vfscanf.3 scanf.3 vscanf.3 \
scanf.3 vsscanf.3
Index: lib/libc/stdio/dprintf.c
===================================================================
RCS file: lib/libc/stdio/dprintf.c
diff -N lib/libc/stdio/dprintf.c
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ lib/libc/stdio/dprintf.c 23 Jan 2013 06:15:32 -0000
@@ -0,0 +1,48 @@
+/* $OpenBSD$ */
+/* $FreeBSD: src/lib/libc/stdio/dprintf.c,v 1.2 2012/11/17 01:49:39 svnexp
Exp $ */
+
+/*-
+ * Copyright (c) 2009 David Schultz <[email protected]>
+ * All rights reserved.
+ *
+ * Copyright (c) 2011 The FreeBSD Foundation
+ * All rights reserved.
+ * Portions of this software were developed by David Chisnall
+ * under sponsorship from the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+
+int
+dprintf(int fd, const char * __restrict fmt, ...)
+{
+ va_list ap;
+ int ret;
+
+ va_start(ap, fmt);
+ ret = vdprintf(fd, fmt, ap);
+ va_end(ap);
+ return ret;
+}
Index: lib/libc/stdio/printf.3
===================================================================
RCS file: /cvs/src/lib/libc/stdio/printf.3,v
retrieving revision 1.59
diff -u -p -r1.59 printf.3
--- lib/libc/stdio/printf.3 3 Sep 2011 22:59:07 -0000 1.59
+++ lib/libc/stdio/printf.3 23 Jan 2013 06:15:33 -0000
@@ -42,11 +42,13 @@
.Nm sprintf ,
.Nm snprintf ,
.Nm asprintf ,
+.Nm dprintf ,
.Nm vprintf ,
.Nm vfprintf ,
.Nm vsprintf ,
.Nm vsnprintf ,
-.Nm vasprintf
+.Nm vasprintf ,
+.Nm vdprintf
.Nd formatted output conversion
.Sh SYNOPSIS
.Fd #include <stdio.h>
@@ -60,6 +62,8 @@
.Fn snprintf "char *str" "size_t size" "const char *format" ...
.Ft int
.Fn asprintf "char **ret" "const char *format" ...
+.Ft int
+.Fn dprintf "int fd" "const char * restrict format" ...
.Fd #include <stdarg.h>
.Ft int
.Fn vprintf "const char *format" "va_list ap"
@@ -71,6 +75,8 @@
.Fn vsnprintf "char *str" "size_t size" "const char *format" "va_list ap"
.Ft int
.Fn vasprintf "char **ret" "const char *format" "va_list ap"
+.Ft int
+.Fn vdprintf "int fd" "const char * restrict format" "va_list ap"
.Sh DESCRIPTION
The
.Fn printf
@@ -95,6 +101,10 @@ and
.Fn vfprintf
write output to the supplied stream pointer
.Fa stream ;
+.Fn dprintf
+and
+.Fn vdprintf
+write output to the given file descriptor;
.Fn sprintf ,
.Fn snprintf ,
.Fn vsprintf ,
@@ -754,6 +764,12 @@ and
.Fn vsprintf
functions conform to
.St -ansiC .
+The
+.Fn dprintf
+and
+.Fn vdprintf
+functions conform to
+.St -p1003.1-2008 .
.Sh HISTORY
The functions
.Fn snprintf
@@ -769,6 +785,13 @@ and
first appeared in the GNU C library.
This implementation first appeared in
.Ox 2.3 .
+.Pp
+The functions
+.Fn dprintf
+and
+.Fn vdprintf
+first appeared in
+.Ox 5.3 .
.Sh CAVEATS
The conversion formats
.Cm \&%D ,
Index: lib/libc/stdio/vdprintf.c
===================================================================
RCS file: lib/libc/stdio/vdprintf.c
diff -N lib/libc/stdio/vdprintf.c
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ lib/libc/stdio/vdprintf.c 23 Jan 2013 06:15:33 -0000
@@ -0,0 +1,84 @@
+/* $OpenBSD$ */
+/* $FreeBSD: src/lib/libc/stdio/vdprintf.c,v 1.4 2012/11/17 01:49:40
svnexp Exp $ */
+
+/*-
+ * Copyright (c) 2009 David Schultz <[email protected]>
+ * All rights reserved.
+ *
+ * Copyright (c) 2011 The FreeBSD Foundation
+ * All rights reserved.
+ * Portions of this software were developed by David Chisnall
+ * under sponsorship from the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "local.h"
+
+int
+vdprintf(int fd, const char * __restrict fmt, va_list ap)
+{
+ FILE f;
+ struct __sfileext fext;
+ unsigned char buf[BUFSIZ];
+ int ret, fdflags, tmp;
+
+ /* _file is only a short */
+ if (fd > SHRT_MAX) {
+ errno = EMFILE;
+ return EOF;
+ }
+
+ if ((fdflags = fcntl(fd, F_GETFL, 0)) == -1)
+ return EOF;
+
+ tmp = fdflags & O_ACCMODE;
+ if (tmp != O_RDWR && tmp != O_WRONLY) {
+ errno = EINVAL;
+ return EOF;
+ }
+
+ _FILEEXT_SETUP(&f, &fext);
+
+ f._p = buf;
+ f._w = sizeof(buf);
+ f._flags = __SWR;
+ f._file = fd;
+ f._bf._base = buf;
+ f._bf._size = sizeof(buf);
+ f._cookie = &f;
+ f._write = __swrite;
+
+ if ((ret = __vfprintf(&f, fmt, ap)) < 0)
+ return ret;
+
+ return fflush(&f) ? EOF : ret;
+}
--
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