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| author | Jeff Johnston <jjohnstn@redhat.com> | 2005-10-11 23:59:32 +0000 |
|---|---|---|
| committer | Jeff Johnston <jjohnstn@redhat.com> | 2005-10-11 23:59:32 +0000 |
| commit | 339195bf127d273d8acc8a1e6eacc0261c3056f8 (patch) | |
| tree | 7fa79809f99f36a7d7c698922704d7f79ef85d74 /newlib/libc/stdio/dprintf.c | |
| parent | da71e51811022b21354b3d833191c4eeba5b43a7 (diff) | |
| download | newlib-339195bf127d273d8acc8a1e6eacc0261c3056f8.zip newlib-339195bf127d273d8acc8a1e6eacc0261c3056f8.tar.gz newlib-339195bf127d273d8acc8a1e6eacc0261c3056f8.tar.bz2 | |
2005-10-11 Shaun Jackman <sjackman@gmail.com>
* libc/include/stdio.h (dprintf): New declaration.
(vdprintf): Ditto.
* libc/stdio/Makefile.am (GENERAL_SOURCES): Add dprintf.c
and vdprintf.c.
* libc/stdio/Makefile.in: Regenerate.
* libc/stdio/dprintf.c: New file.
* libc/stdio/vdprintf.c: New file.
* libc/stdio/stdio.tex (dprintf): New entry.
Diffstat (limited to 'newlib/libc/stdio/dprintf.c')
| -rw-r--r-- | newlib/libc/stdio/dprintf.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/newlib/libc/stdio/dprintf.c b/newlib/libc/stdio/dprintf.c new file mode 100644 index 0000000..6ebf12e --- /dev/null +++ b/newlib/libc/stdio/dprintf.c @@ -0,0 +1,129 @@ +/* Copyright 2005 Shaun Jackman + * Permission to use, copy, modify, and distribute this software + * is freely granted, provided that this notice is preserved. + */ + +/* +FUNCTION +<<dprintf>>, <<vdprintf>>---print to a file descriptor + +INDEX + dprintf +INDEX + vdprintf + +ANSI_SYNOPSIS + #include <stdio.h> + #include <stdarg.h> + int dprintf(int <[fd]>, const char *<[format]>, ...); + int vdprintf(int <[fd]>, const char *<[format]>, va_list <[ap]>); + int _dprintf_r(struct _reent *<[ptr]>, int <[fd]>, + const char *<[format]>, ...); + int _vdprintf_r(struct _reent *<[ptr]>, int <[fd]>, + const char *<[format]>, va_list <[ap]>); + +TRAD_SYNOPSIS + #include <stdio.h> + #include <varargs.h> + + int dprintf(<[fd]>, <[format]> [, <[arg]>, ...]) + int <[fd]>; + char *<[format]>; + + int vdprintf(<[fd]>, <[fmt]>, <[list]>) + int <[fd]>; + char *<[fmt]>; + va_list <[list]>; + + int _dprintf_r(<[ptr]>, <[fd]>, <[format]> [, <[arg]>, ...]) + struct _reent *<[ptr]>; + int <[fd]>; + char *<[format]>; + + int _vdprintf_r(<[ptr]>, <[fd]>, <[fmt]>, <[list]>) + struct _reent *<[ptr]>; + int <[fd]>; + char *<[fmt]>; + va_list <[list]>; + +DESCRIPTION +<<dprintf>> and <<vdprintf>> allow printing a format, similarly to +<<printf>>, but write to a file descriptor instead of to a <<FILE>> +stream. + +The functions <<_dprintf_r>> and <<_vdprintf_r>> are simply +reentrant versions of the functions above. + +RETURNS +The return value and errors are exactly as for <<write>>, except that +<<errno>> may also be set to <<ENOMEM>> if the heap is exhausted. + +PORTABILITY +This function is originally a GNU extension in glibc and is not portable. + +Supporting OS subroutines required: <<sbrk>>, <<write>>. +*/ + +#include <_ansi.h> +#include <reent.h> +#include <stdio.h> +#include <unistd.h> +#ifdef _HAVE_STDC +#include <stdarg.h> +#else +#include <varargs.h> +#endif + +#ifdef _HAVE_STDC +int +_dprintf_r(struct _reent *ptr, int fd, _CONST char *format, ...) +#else +int +_dprintf_r(ptr, fd, format, va_alist) + struct _reent *ptr; + int fd; + char *format; + va_dcl +#endif +{ + va_list ap; + int n; + _REENT_SMALL_CHECK_INIT (ptr); +#ifdef _HAVE_STDC + va_start (ap, format); +#else + va_start (ap); +#endif + n = _vdprintf_r (ptr, fd, format, ap); + va_end (ap); + return n; +} + +#ifndef _REENT_ONLY + +#ifdef _HAVE_STDC +int +dprintf(int fd, _CONST char *format, ...) +#else +int +dprintf(fd, format, va_alist) + struct _reent *ptr; + int fd; + char *format; + va_dcl +#endif +{ + va_list ap; + int n; + _REENT_SMALL_CHECK_INIT (_REENT); +#ifdef _HAVE_STDC + va_start (ap, format); +#else + va_start (ap); +#endif + n = _vdprintf_r (_REENT, fd, format, ap); + va_end (ap); + return n; +} + +#endif /* ! _REENT_ONLY */ |