| /* Copyright (C) 2004 Manuel Novoa III <mjn3@codepoet.org> |
| * |
| * GNU Library General Public License (LGPL) version 2 or later. |
| * |
| * Dedicated to Toni. See uClibc/DEDICATION.mjn3 for details. |
| */ |
| |
| #include <features.h> |
| |
| #ifdef __USE_GNU |
| #include "_stdio.h" |
| #include <stdarg.h> |
| |
| |
| int vdprintf(int filedes, const char * __restrict format, va_list arg) |
| { |
| FILE f; |
| int rv; |
| #ifdef __STDIO_BUFFERS |
| char buf[64]; /* TODO: provide _optional_ buffering? */ |
| |
| f.__bufend = (unsigned char *) buf + sizeof(buf); |
| f.__bufstart = (unsigned char *) buf; |
| __STDIO_STREAM_DISABLE_GETC(&f); |
| __STDIO_STREAM_DISABLE_PUTC(&f); |
| __STDIO_STREAM_INIT_BUFREAD_BUFPOS(&f); |
| #endif |
| |
| /* __STDIO_STREAM_RESET_GCS(&f); */ |
| #ifdef __UCLIBC_HAS_GLIBC_CUSTOM_STREAMS__ |
| f.__cookie = &(f.__filedes); |
| f.__gcs.read = NULL; |
| f.__gcs.write = _cs_write; |
| f.__gcs.seek = NULL; |
| f.__gcs.close = NULL; |
| #endif |
| |
| f.__filedes = filedes; |
| f.__modeflags = (__FLAG_NARROW|__FLAG_WRITEONLY|__FLAG_WRITING); |
| |
| #ifdef __UCLIBC_HAS_WCHAR__ |
| f.__ungot_width[0] = 0; |
| #endif |
| #ifdef __STDIO_MBSTATE |
| __INIT_MBSTATE(&(f.__state)); |
| #endif |
| |
| /* _vfprintf_internal doesn't do any locking, locking init is here |
| * only because of fflush_unlocked. TODO? */ |
| #if (defined(__STDIO_BUFFERS) || defined(__USE_OLD_VFPRINTF__)) && defined(__UCLIBC_HAS_THREADS__) |
| f.__user_locking = 1; /* Set user locking. */ |
| STDIO_INIT_MUTEX(f.__lock); |
| #endif |
| f.__nextopen = NULL; |
| |
| #ifdef __USE_OLD_VFPRINTF__ |
| rv = vfprintf(&f, format, arg); |
| #else |
| rv = _vfprintf_internal(&f, format, arg); |
| #endif |
| |
| #ifdef __STDIO_BUFFERS |
| /* If not buffering, then fflush is unnecessary. */ |
| if ((rv > 0) && fflush_unlocked(&f)) { |
| rv = -1; |
| } |
| #endif |
| |
| assert(rv >= -1); |
| |
| return rv; |
| } |
| libc_hidden_def(vdprintf) |
| #endif |