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Diffstat (limited to 'libXfont/src/fontfile/dirfile.c')
-rw-r--r--libXfont/src/fontfile/dirfile.c495
1 files changed, 495 insertions, 0 deletions
diff --git a/libXfont/src/fontfile/dirfile.c b/libXfont/src/fontfile/dirfile.c
new file mode 100644
index 000000000..148993896
--- /dev/null
+++ b/libXfont/src/fontfile/dirfile.c
@@ -0,0 +1,495 @@
+/* $Xorg: dirfile.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/dirfile.c,v 3.17 2004/02/08 01:52:27 dawes Exp $ */
+
+/*
+ * Author: Keith Packard, MIT X Consortium
+ */
+
+/*
+ * dirfile.c
+ *
+ * Read fonts.dir and fonts.alias files
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <X11/fonts/fntfilst.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+static Bool AddFileNameAliases ( FontDirectoryPtr dir );
+static int ReadFontAlias ( char *directory, Bool isFile,
+ FontDirectoryPtr *pdir );
+static int lexAlias ( FILE *file, char **lexToken );
+static int lexc ( FILE *file );
+
+int
+FontFileReadDirectory (char *directory, FontDirectoryPtr *pdir)
+{
+ char file_name[MAXFONTFILENAMELEN];
+ char font_name[MAXFONTNAMELEN];
+ char dir_file[MAXFONTFILENAMELEN];
+ char dir_path[MAXFONTFILENAMELEN];
+ char *ptr;
+ FILE *file;
+ int count,
+ num_fonts,
+ status;
+ struct stat statb;
+ static char format[24] = "";
+#if defined(__UNIXOS2__) || defined(WIN32)
+ int i;
+#endif
+
+ FontDirectoryPtr dir = NullFontDirectory;
+
+ if (strlen(directory) + 1 + sizeof(FontDirFile) > sizeof(dir_file))
+ return BadFontPath;
+
+ /* Check for font directory attributes */
+#if !defined(__UNIXOS2__) && !defined(WIN32)
+ if ((ptr = strchr(directory, ':'))) {
+#else
+ /* OS/2 and WIN32 path might start with a drive letter, don't clip this */
+ if ((ptr = strchr(directory+2, ':'))) {
+#endif
+ strncpy(dir_path, directory, ptr - directory);
+ dir_path[ptr - directory] = '\0';
+ } else {
+ strcpy(dir_path, directory);
+ }
+ strcpy(dir_file, dir_path);
+ if (dir_file[strlen(dir_file) - 1] != '/')
+ strcat(dir_file, "/");
+ strcat(dir_file, FontDirFile);
+ file = fopen(dir_file, "rt");
+ if (file) {
+#ifndef WIN32
+ if (fstat (fileno(file), &statb) == -1)
+#else
+ if (stat (dir_file, &statb) == -1)
+#endif
+ {
+ fclose(file);
+ return BadFontPath;
+ }
+ count = fscanf(file, "%d\n", &num_fonts);
+ if ((count == EOF) || (count != 1)) {
+ fclose(file);
+ return BadFontPath;
+ }
+ dir = FontFileMakeDir(directory, num_fonts);
+ if (dir == NULL) {
+ fclose(file);
+ return BadFontPath;
+ }
+ dir->dir_mtime = statb.st_mtime;
+ if (format[0] == '\0')
+ sprintf(format, "%%%ds %%%d[^\n]\n",
+ MAXFONTFILENAMELEN-1, MAXFONTNAMELEN-1);
+
+ while ((count = fscanf(file, format, file_name, font_name)) != EOF) {
+#if defined(__UNIXOS2__) || defined(WIN32)
+ /* strip any existing trailing CR */
+ for (i=0; i<strlen(font_name); i++) {
+ if (font_name[i]=='\r') font_name[i] = '\0';
+ }
+#endif
+ if (count != 2) {
+ FontFileFreeDir (dir);
+ fclose(file);
+ return BadFontPath;
+ }
+
+ /*
+ * We blindly try to load all the font files specified.
+ * In theory, we might want to warn that some of the fonts
+ * couldn't be loaded.
+ */
+ FontFileAddFontFile (dir, font_name, file_name);
+ }
+ fclose(file);
+
+ } else if (errno != ENOENT) {
+ return BadFontPath;
+ }
+ status = ReadFontAlias(dir_path, FALSE, &dir);
+ if (status != Successful) {
+ if (dir)
+ FontFileFreeDir (dir);
+ return status;
+ }
+ if (!dir)
+ return BadFontPath;
+
+ FontFileSortDir(dir);
+
+ *pdir = dir;
+ return Successful;
+}
+
+Bool
+FontFileDirectoryChanged(FontDirectoryPtr dir)
+{
+ char dir_file[MAXFONTFILENAMELEN];
+ struct stat statb;
+
+ if (strlen(dir->directory) + sizeof(FontDirFile) > sizeof(dir_file))
+ return FALSE;
+
+ strcpy (dir_file, dir->directory);
+ strcat (dir_file, FontDirFile);
+ if (stat (dir_file, &statb) == -1)
+ {
+ if (errno != ENOENT || dir->dir_mtime != 0)
+ return TRUE;
+ return FALSE; /* doesn't exist and never did: no change */
+ }
+ if (dir->dir_mtime != statb.st_mtime)
+ return TRUE;
+
+ if ((strlen(dir->directory) + sizeof(FontAliasFile)) > sizeof(dir_file))
+ return FALSE;
+ strcpy (dir_file, dir->directory);
+ strcat (dir_file, FontAliasFile);
+ if (stat (dir_file, &statb) == -1)
+ {
+ if (errno != ENOENT || dir->alias_mtime != 0)
+ return TRUE;
+ return FALSE; /* doesn't exist and never did: no change */
+ }
+ if (dir->alias_mtime != statb.st_mtime)
+ return TRUE;
+ return FALSE;
+}
+
+/*
+ * Make each of the file names an automatic alias for each of the files.
+ */
+
+static Bool
+AddFileNameAliases(FontDirectoryPtr dir)
+{
+ int i;
+ char copy[MAXFONTFILENAMELEN];
+ char *fileName;
+ FontTablePtr table;
+ FontRendererPtr renderer;
+ int len;
+ FontNameRec name;
+
+ table = &dir->nonScalable;
+ for (i = 0; i < table->used; i++) {
+ if (table->entries[i].type != FONT_ENTRY_BITMAP)
+ continue;
+ fileName = table->entries[i].u.bitmap.fileName;
+ renderer = FontFileMatchRenderer (fileName);
+ if (!renderer)
+ continue;
+
+ len = strlen (fileName) - renderer->fileSuffixLen;
+ if (len >= sizeof(copy))
+ continue;
+ CopyISOLatin1Lowered (copy, fileName, len);
+ copy[len] = '\0';
+ name.name = copy;
+ name.length = len;
+ name.ndashes = FontFileCountDashes (copy, len);
+
+ if (!FontFileFindNameInDir(table, &name)) {
+ if (!FontFileAddFontAlias (dir, copy, table->entries[i].name.name))
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
+
+/*
+ * parse the font.alias file. Format is:
+ *
+ * alias font-name
+ *
+ * To imbed white-space in an alias name, enclose it like "font name"
+ * in double quotes. \ escapes and character, so
+ * "font name \"With Double Quotes\" \\ and \\ back-slashes"
+ * works just fine.
+ *
+ * A line beginning with a ! denotes a newline-terminated comment.
+ */
+
+/*
+ * token types
+ */
+
+#define NAME 0
+#define NEWLINE 1
+#define DONE 2
+#define EALLOC 3
+
+static int
+ReadFontAlias(char *directory, Bool isFile, FontDirectoryPtr *pdir)
+{
+ char alias[MAXFONTNAMELEN];
+ char font_name[MAXFONTNAMELEN];
+ char alias_file[MAXFONTFILENAMELEN];
+ FILE *file;
+ FontDirectoryPtr dir;
+ int token;
+ char *lexToken;
+ int status = Successful;
+ struct stat statb;
+
+ if (strlen(directory) >= sizeof(alias_file))
+ return BadFontPath;
+ dir = *pdir;
+ strcpy(alias_file, directory);
+ if (!isFile) {
+ if (strlen(directory) + 1 + sizeof(FontAliasFile) > sizeof(alias_file))
+ return BadFontPath;
+ if (directory[strlen(directory) - 1] != '/')
+ strcat(alias_file, "/");
+ strcat(alias_file, FontAliasFile);
+ }
+ file = fopen(alias_file, "rt");
+ if (!file)
+ return ((errno == ENOENT) ? Successful : BadFontPath);
+ if (!dir)
+ *pdir = dir = FontFileMakeDir(directory, 10);
+ if (!dir)
+ {
+ fclose (file);
+ return AllocError;
+ }
+#ifndef WIN32
+ if (fstat (fileno (file), &statb) == -1)
+#else
+ if (stat (alias_file, &statb) == -1)
+#endif
+ {
+ fclose (file);
+ return BadFontPath;
+ }
+ dir->alias_mtime = statb.st_mtime;
+ while (status == Successful) {
+ token = lexAlias(file, &lexToken);
+ switch (token) {
+ case NEWLINE:
+ break;
+ case DONE:
+ fclose(file);
+ return Successful;
+ case EALLOC:
+ status = AllocError;
+ break;
+ case NAME:
+ if (strlen(lexToken) >= sizeof(alias)) {
+ status = BadFontPath;
+ break;
+ }
+ strcpy(alias, lexToken);
+ token = lexAlias(file, &lexToken);
+ switch (token) {
+ case NEWLINE:
+ if (strcmp(alias, "FILE_NAMES_ALIASES"))
+ status = BadFontPath;
+ else if (!AddFileNameAliases(dir))
+ status = AllocError;
+ break;
+ case DONE:
+ status = BadFontPath;
+ break;
+ case EALLOC:
+ status = AllocError;
+ break;
+ case NAME:
+ if (strlen(lexToken) >= sizeof(font_name)) {
+ status = BadFontPath;
+ break;
+ }
+ CopyISOLatin1Lowered(alias, alias, strlen(alias));
+ CopyISOLatin1Lowered(font_name, lexToken, strlen(lexToken));
+ if (!FontFileAddFontAlias (dir, alias, font_name))
+ status = AllocError;
+ break;
+ }
+ }
+ }
+ fclose(file);
+ return status;
+}
+
+#define QUOTE 0
+#define WHITE 1
+#define NORMAL 2
+#define END 3
+#define NL 4
+#define BANG 5
+
+static int charClass;
+
+static int
+lexAlias(FILE *file, char **lexToken)
+{
+ int c;
+ char *t;
+ enum state {
+ Begin, Normal, Quoted, Comment
+ } state;
+ int count;
+
+ static char *tokenBuf = (char *) NULL;
+ static int tokenSize = 0;
+
+ t = tokenBuf;
+ count = 0;
+ state = Begin;
+ for (;;) {
+ if (count == tokenSize) {
+ int nsize;
+ char *nbuf;
+
+ nsize = tokenSize ? (tokenSize << 1) : 64;
+ nbuf = (char *) xrealloc(tokenBuf, nsize);
+ if (!nbuf)
+ return EALLOC;
+ tokenBuf = nbuf;
+ tokenSize = nsize;
+ t = tokenBuf + count;
+ }
+ c = lexc(file);
+ switch (charClass) {
+ case QUOTE:
+ switch (state) {
+ case Begin:
+ case Normal:
+ state = Quoted;
+ break;
+ case Quoted:
+ state = Normal;
+ break;
+ case Comment:
+ break;
+ }
+ break;
+ case WHITE:
+ switch (state) {
+ case Begin:
+ case Comment:
+ continue;
+ case Normal:
+ *t = '\0';
+ *lexToken = tokenBuf;
+ return NAME;
+ case Quoted:
+ break;
+ }
+ /* fall through */
+ case NORMAL:
+ switch (state) {
+ case Begin:
+ state = Normal;
+ break;
+ case Comment:
+ continue;
+ default:
+ break;
+ }
+ *t++ = c;
+ ++count;
+ break;
+ case END:
+ case NL:
+ switch (state) {
+ case Begin:
+ case Comment:
+ *lexToken = (char *) NULL;
+ return charClass == END ? DONE : NEWLINE;
+ default:
+ *t = '\0';
+ *lexToken = tokenBuf;
+ ungetc(c, file);
+ return NAME;
+ }
+ break;
+ case BANG:
+ switch (state) {
+ case Begin:
+ state = Comment;
+ break;
+ case Comment:
+ break;
+ default:
+ *t++ = c;
+ ++count;
+ }
+ break;
+ }
+ }
+}
+
+static int
+lexc(FILE *file)
+{
+ int c;
+
+ c = getc(file);
+ switch (c) {
+ case EOF:
+ charClass = END;
+ break;
+ case '\\':
+ c = getc(file);
+ if (c == EOF)
+ charClass = END;
+ else
+ charClass = NORMAL;
+ break;
+ case '"':
+ charClass = QUOTE;
+ break;
+ case ' ':
+ case '\t':
+ charClass = WHITE;
+ break;
+ case '\r':
+ case '\n':
+ charClass = NL;
+ break;
+ case '!':
+ charClass = BANG;
+ break;
+ default:
+ charClass = NORMAL;
+ break;
+ }
+ return c;
+}
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