diff options
Diffstat (limited to 'libXfont/src/fontfile/bufio.c')
-rw-r--r-- | libXfont/src/fontfile/bufio.c | 409 |
1 files changed, 203 insertions, 206 deletions
diff --git a/libXfont/src/fontfile/bufio.c b/libXfont/src/fontfile/bufio.c index dd8d6e282..8b880e150 100644 --- a/libXfont/src/fontfile/bufio.c +++ b/libXfont/src/fontfile/bufio.c @@ -1,206 +1,203 @@ -/* $Xorg: bufio.c,v 1.4 2001/02/09 02:04:03 xorgcvs Exp $ */ - -/* - -Copyright 1991, 1998 The Open Group - -Permission to use, copy, modify, distribute, and sell this software and its -documentation for any purpose is hereby granted without fee, provided that -the above copyright notice appear in all copies and that both that -copyright notice and this permission notice appear in supporting -documentation. - -The above copyright notice and this permission notice shall be included -in all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. -IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR -OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, -ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR -OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name of The Open Group shall -not be used in advertising or otherwise to promote the sale, use or -other dealings in this Software without prior written authorization -from The Open Group. - -*/ -/* $XFree86: xc/lib/font/fontfile/bufio.c,v 3.9 2001/12/14 19:56:50 dawes Exp $ */ - -/* - * Author: Keith Packard, MIT X Consortium - */ - - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif -#include <X11/Xos.h> -#include <X11/fonts/fontmisc.h> -#include <X11/fonts/bufio.h> -#include <errno.h> - -BufFilePtr -BufFileCreate (char *private, - int (*input)(BufFilePtr), - int (*output)(int, BufFilePtr), - int (*skip)(BufFilePtr, int), - int (*close)(BufFilePtr, int)) -{ - BufFilePtr f; - - f = malloc (sizeof *f); - if (!f) - return 0; - f->private = private; - f->bufp = f->buffer; - f->left = 0; - f->input = input; - f->output = output; - f->skip = skip; - f->eof = 0; - f->close = close; - return f; -} - -#define FileDes(f) ((int)(long) (f)->private) - -static int -BufFileRawFill (BufFilePtr f) -{ - int left; - - left = read (FileDes(f), (char *)f->buffer, BUFFILESIZE); - if (left <= 0) { - f->left = 0; - return BUFFILEEOF; - } - f->left = left - 1; - f->bufp = f->buffer + 1; - return f->buffer[0]; -} - -static int -BufFileRawSkip (BufFilePtr f, int count) -{ - int curoff; - int fileoff; - int todo; - - curoff = f->bufp - f->buffer; - fileoff = curoff + f->left; - if (curoff + count <= fileoff) { - f->bufp += count; - f->left -= count; - } else { - todo = count - (fileoff - curoff); - if (lseek (FileDes(f), todo, 1) == -1) { - if (errno != ESPIPE) - return BUFFILEEOF; - while (todo) { - curoff = BUFFILESIZE; - if (curoff > todo) - curoff = todo; - fileoff = read (FileDes(f), (char *)f->buffer, curoff); - if (fileoff <= 0) - return BUFFILEEOF; - todo -= fileoff; - } - } - f->left = 0; - } - return count; -} - -static int -BufFileRawClose (BufFilePtr f, int doClose) -{ - if (doClose) - close (FileDes (f)); - return 1; -} - -BufFilePtr -BufFileOpenRead (int fd) -{ -#if defined (WIN32) - /* hv: I'd bet WIN32 has the same effect here */ - setmode(fd,O_BINARY); -#endif - return BufFileCreate ((char *)(long) fd, BufFileRawFill, 0, BufFileRawSkip, BufFileRawClose); -} - -static int -BufFileRawFlush (int c, BufFilePtr f) -{ - int cnt; - - if (c != BUFFILEEOF) - *f->bufp++ = c; - cnt = f->bufp - f->buffer; - f->bufp = f->buffer; - f->left = BUFFILESIZE; - if (write (FileDes(f), (char *)f->buffer, cnt) != cnt) - return BUFFILEEOF; - return c; -} - -static int -BufFileFlush (BufFilePtr f, int doClose) -{ - if (f->bufp != f->buffer) - return (*f->output) (BUFFILEEOF, f); - return 0; -} - -BufFilePtr -BufFileOpenWrite (int fd) -{ - BufFilePtr f; - -#if defined(WIN32) - /* hv: I'd bet WIN32 has the same effect here */ - setmode(fd,O_BINARY); -#endif - f = BufFileCreate ((char *)(long) fd, 0, BufFileRawFlush, 0, BufFileFlush); - f->bufp = f->buffer; - f->left = BUFFILESIZE; - return f; -} - -int -BufFileRead (BufFilePtr f, char *b, int n) -{ - int c, cnt; - cnt = n; - while (cnt--) { - c = BufFileGet (f); - if (c == BUFFILEEOF) - break; - *b++ = c; - } - return n - cnt - 1; -} - -int -BufFileWrite (BufFilePtr f, char *b, int n) -{ - int cnt; - cnt = n; - while (cnt--) { - if (BufFilePut (*b++, f) == BUFFILEEOF) - return BUFFILEEOF; - } - return n; -} - -int -BufFileClose (BufFilePtr f, int doClose) -{ - int ret; - ret = (*f->close) (f, doClose); - free (f); - return ret; -} +/*
+
+Copyright 1991, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from The Open Group.
+
+*/
+
+/*
+ * Author: Keith Packard, MIT X Consortium
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <X11/Xos.h>
+#include <X11/fonts/fontmisc.h>
+#include <X11/fonts/bufio.h>
+#include <errno.h>
+
+BufFilePtr
+BufFileCreate (char *private,
+ int (*input)(BufFilePtr),
+ int (*output)(int, BufFilePtr),
+ int (*skip)(BufFilePtr, int),
+ int (*close)(BufFilePtr, int))
+{
+ BufFilePtr f;
+
+ f = malloc (sizeof *f);
+ if (!f)
+ return 0;
+ f->private = private;
+ f->bufp = f->buffer;
+ f->left = 0;
+ f->input = input;
+ f->output = output;
+ f->skip = skip;
+ f->eof = 0;
+ f->close = close;
+ return f;
+}
+
+#define FileDes(f) ((int)(long) (f)->private)
+
+static int
+BufFileRawFill (BufFilePtr f)
+{
+ int left;
+
+ left = read (FileDes(f), (char *)f->buffer, BUFFILESIZE);
+ if (left <= 0) {
+ f->left = 0;
+ return BUFFILEEOF;
+ }
+ f->left = left - 1;
+ f->bufp = f->buffer + 1;
+ return f->buffer[0];
+}
+
+static int
+BufFileRawSkip (BufFilePtr f, int count)
+{
+ int curoff;
+ int fileoff;
+ int todo;
+
+ curoff = f->bufp - f->buffer;
+ fileoff = curoff + f->left;
+ if (curoff + count <= fileoff) {
+ f->bufp += count;
+ f->left -= count;
+ } else {
+ todo = count - (fileoff - curoff);
+ if (lseek (FileDes(f), todo, 1) == -1) {
+ if (errno != ESPIPE)
+ return BUFFILEEOF;
+ while (todo) {
+ curoff = BUFFILESIZE;
+ if (curoff > todo)
+ curoff = todo;
+ fileoff = read (FileDes(f), (char *)f->buffer, curoff);
+ if (fileoff <= 0)
+ return BUFFILEEOF;
+ todo -= fileoff;
+ }
+ }
+ f->left = 0;
+ }
+ return count;
+}
+
+static int
+BufFileRawClose (BufFilePtr f, int doClose)
+{
+ if (doClose)
+ close (FileDes (f));
+ return 1;
+}
+
+BufFilePtr
+BufFileOpenRead (int fd)
+{
+#if defined (WIN32)
+ /* hv: I'd bet WIN32 has the same effect here */
+ setmode(fd,O_BINARY);
+#endif
+ return BufFileCreate ((char *)(long) fd, BufFileRawFill, 0, BufFileRawSkip, BufFileRawClose);
+}
+
+static int
+BufFileRawFlush (int c, BufFilePtr f)
+{
+ int cnt;
+
+ if (c != BUFFILEEOF)
+ *f->bufp++ = c;
+ cnt = f->bufp - f->buffer;
+ f->bufp = f->buffer;
+ f->left = BUFFILESIZE;
+ if (write (FileDes(f), (char *)f->buffer, cnt) != cnt)
+ return BUFFILEEOF;
+ return c;
+}
+
+static int
+BufFileFlush (BufFilePtr f, int doClose)
+{
+ if (f->bufp != f->buffer)
+ return (*f->output) (BUFFILEEOF, f);
+ return 0;
+}
+
+BufFilePtr
+BufFileOpenWrite (int fd)
+{
+ BufFilePtr f;
+
+#if defined(WIN32)
+ /* hv: I'd bet WIN32 has the same effect here */
+ setmode(fd,O_BINARY);
+#endif
+ f = BufFileCreate ((char *)(long) fd, 0, BufFileRawFlush, 0, BufFileFlush);
+ f->bufp = f->buffer;
+ f->left = BUFFILESIZE;
+ return f;
+}
+
+int
+BufFileRead (BufFilePtr f, char *b, int n)
+{
+ int c, cnt;
+ cnt = n;
+ while (cnt--) {
+ c = BufFileGet (f);
+ if (c == BUFFILEEOF)
+ break;
+ *b++ = c;
+ }
+ return n - cnt - 1;
+}
+
+int
+BufFileWrite (BufFilePtr f, char *b, int n)
+{
+ int cnt;
+ cnt = n;
+ while (cnt--) {
+ if (BufFilePut (*b++, f) == BUFFILEEOF)
+ return BUFFILEEOF;
+ }
+ return n;
+}
+
+int
+BufFileClose (BufFilePtr f, int doClose)
+{
+ int ret;
+ ret = (*f->close) (f, doClose);
+ free (f);
+ return ret;
+}
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