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-rw-r--r--xorg-server/hw/xfree86/parser/scan.c1031
1 files changed, 1031 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/parser/scan.c b/xorg-server/hw/xfree86/parser/scan.c
new file mode 100644
index 000000000..851b91161
--- /dev/null
+++ b/xorg-server/hw/xfree86/parser/scan.c
@@ -0,0 +1,1031 @@
+/*
+ * Copyright (c) 1997 Metro Link Incorporated
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * 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 X CONSORTIUM 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 Metro Link shall not be
+ * used in advertising or otherwise to promote the sale, use or other dealings
+ * in this Software without prior written authorization from Metro Link.
+ *
+ */
+/*
+ * Copyright (c) 1997-2003 by The XFree86 Project, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 copyright holder(s)
+ * and author(s) 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 copyright holder(s) and author(s).
+ */
+
+
+/* View/edit this file with tab stops set to 4 */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <X11/Xfuncproto.h>
+
+#if !defined(X_NOT_POSIX)
+#if defined(_POSIX_SOURCE)
+#include <limits.h>
+#else
+#define _POSIX_SOURCE
+#include <limits.h>
+#undef _POSIX_SOURCE
+#endif /* _POSIX_SOURCE */
+#endif /* !X_NOT_POSIX */
+#if !defined(PATH_MAX)
+#if defined(MAXPATHLEN)
+#define PATH_MAX MAXPATHLEN
+#else
+#define PATH_MAX 1024
+#endif /* MAXPATHLEN */
+#endif /* !PATH_MAX */
+
+#if !defined(MAXHOSTNAMELEN)
+#define MAXHOSTNAMELEN 32
+#endif /* !MAXHOSTNAMELEN */
+
+#include "Configint.h"
+#include "xf86tokens.h"
+
+#define CONFIG_BUF_LEN 1024
+
+static int StringToToken (char *, xf86ConfigSymTabRec *);
+
+static FILE *configFile = NULL;
+static const char **builtinConfig = NULL;
+static int builtinIndex = 0;
+static int configPos = 0; /* current readers position */
+static int configLineNo = 0; /* linenumber */
+static char *configBuf, *configRBuf; /* buffer for lines */
+static char *configPath; /* path to config file */
+static char *configSection = NULL; /* name of current section being parsed */
+static int pushToken = LOCK_TOKEN;
+static int eol_seen = 0; /* private state to handle comments */
+LexRec val;
+
+/*
+ * xf86strToUL --
+ *
+ * A portable, but restricted, version of strtoul(). It only understands
+ * hex, octal, and decimal. But it's good enough for our needs.
+ */
+static unsigned int
+xf86strToUL (char *str)
+{
+ int base = 10;
+ char *p = str;
+ unsigned int tot = 0;
+
+ if (*p == '0')
+ {
+ p++;
+ if ((*p == 'x') || (*p == 'X'))
+ {
+ p++;
+ base = 16;
+ }
+ else
+ base = 8;
+ }
+ while (*p)
+ {
+ if ((*p >= '0') && (*p <= ((base == 8) ? '7' : '9')))
+ {
+ tot = tot * base + (*p - '0');
+ }
+ else if ((base == 16) && (*p >= 'a') && (*p <= 'f'))
+ {
+ tot = tot * base + 10 + (*p - 'a');
+ }
+ else if ((base == 16) && (*p >= 'A') && (*p <= 'F'))
+ {
+ tot = tot * base + 10 + (*p - 'A');
+ }
+ else
+ {
+ return (tot);
+ }
+ p++;
+ }
+ return (tot);
+}
+
+/*
+ * xf86getNextLine --
+ *
+ * read from the configFile FILE stream until we encounter a new
+ * line; this is effectively just a big wrapper for fgets(3).
+ *
+ * xf86getToken() assumes that we will read up to the next
+ * newline; we need to grow configBuf and configRBuf as needed to
+ * support that.
+ */
+
+static char*
+xf86getNextLine(void)
+{
+ static int configBufLen = CONFIG_BUF_LEN;
+ char *tmpConfigBuf, *tmpConfigRBuf;
+ int c, i, pos = 0, eolFound = 0;
+ char *ret = NULL;
+
+ /*
+ * reallocate the string if it was grown last time (i.e., is no
+ * longer CONFIG_BUF_LEN); we malloc the new strings first, so
+ * that if either of the mallocs fail, we can fall back on the
+ * existing buffer allocations
+ */
+
+ if (configBufLen != CONFIG_BUF_LEN) {
+
+ tmpConfigBuf = xf86confmalloc(CONFIG_BUF_LEN);
+ tmpConfigRBuf = xf86confmalloc(CONFIG_BUF_LEN);
+
+ if (!tmpConfigBuf || !tmpConfigRBuf) {
+
+ /*
+ * at least one of the mallocs failed; keep the old buffers
+ * and free any partial allocations
+ */
+
+ xf86conffree(tmpConfigBuf);
+ xf86conffree(tmpConfigRBuf);
+
+ } else {
+
+ /*
+ * malloc succeeded; free the old buffers and use the new
+ * buffers
+ */
+
+ configBufLen = CONFIG_BUF_LEN;
+
+ xf86conffree(configBuf);
+ xf86conffree(configRBuf);
+
+ configBuf = tmpConfigBuf;
+ configRBuf = tmpConfigRBuf;
+ }
+ }
+
+ /* read in another block of chars */
+
+ do {
+ ret = fgets(configBuf + pos, configBufLen - pos - 1, configFile);
+
+ if (!ret) break;
+
+ /* search for EOL in the new block of chars */
+
+ for (i = pos; i < (configBufLen - 1); i++) {
+ c = configBuf[i];
+
+ if (c == '\0') break;
+
+ if ((c == '\n') || (c == '\r')) {
+ eolFound = 1;
+ break;
+ }
+ }
+
+ /*
+ * if we didn't find EOL, then grow the string and
+ * read in more
+ */
+
+ if (!eolFound) {
+
+ tmpConfigBuf = xf86confrealloc(configBuf, configBufLen + CONFIG_BUF_LEN);
+ tmpConfigRBuf = xf86confrealloc(configRBuf, configBufLen + CONFIG_BUF_LEN);
+
+ if (!tmpConfigBuf || !tmpConfigRBuf) {
+
+ /*
+ * at least one of the reallocations failed; use the
+ * new allocation that succeeded, but we have to
+ * fallback to the previous configBufLen size and use
+ * the string we have, even though we don't have an
+ * EOL
+ */
+
+ if (tmpConfigBuf) configBuf = tmpConfigBuf;
+ if (tmpConfigRBuf) configRBuf = tmpConfigRBuf;
+
+ break;
+
+ } else {
+
+ /* reallocation succeeded */
+
+ configBuf = tmpConfigBuf;
+ configRBuf = tmpConfigRBuf;
+ pos = i;
+ configBufLen += CONFIG_BUF_LEN;
+ }
+ }
+
+ } while (!eolFound);
+
+ return (ret);
+}
+
+/*
+ * xf86getToken --
+ * Read next Token from the config file. Handle the global variable
+ * pushToken.
+ */
+int
+xf86getToken (xf86ConfigSymTabRec * tab)
+{
+ int c, i;
+
+ /*
+ * First check whether pushToken has a different value than LOCK_TOKEN.
+ * In this case rBuf[] contains a valid STRING/TOKEN/NUMBER. But in the
+ * oth * case the next token must be read from the input.
+ */
+ if (pushToken == EOF_TOKEN)
+ return (EOF_TOKEN);
+ else if (pushToken == LOCK_TOKEN)
+ {
+ /*
+ * eol_seen is only set for the first token after a newline.
+ */
+ eol_seen = 0;
+
+ c = configBuf[configPos];
+
+ /*
+ * Get start of next Token. EOF is handled,
+ * whitespaces are skipped.
+ */
+
+again:
+ if (!c)
+ {
+ char *ret;
+ if (configFile)
+ ret = xf86getNextLine();
+ else {
+ if (builtinConfig[builtinIndex] == NULL)
+ ret = NULL;
+ else {
+ ret = strncpy(configBuf, builtinConfig[builtinIndex],
+ CONFIG_BUF_LEN);
+ builtinIndex++;
+ }
+ }
+ if (ret == NULL)
+ {
+ return (pushToken = EOF_TOKEN);
+ }
+ configLineNo++;
+ configPos = 0;
+ eol_seen = 1;
+ }
+
+ i = 0;
+ for (;;) {
+ c = configBuf[configPos++];
+ configRBuf[i++] = c;
+ switch (c) {
+ case ' ':
+ case '\t':
+ case '\r':
+ continue;
+ case '\n':
+ i = 0;
+ continue;
+ }
+ break;
+ }
+ if (c == '\0')
+ goto again;
+
+ if (c == '#')
+ {
+ do
+ {
+ configRBuf[i++] = (c = configBuf[configPos++]);
+ }
+ while ((c != '\n') && (c != '\r') && (c != '\0'));
+ configRBuf[i] = '\0';
+ /* XXX no private copy.
+ * Use xf86addComment when setting a comment.
+ */
+ val.str = configRBuf;
+ return (COMMENT);
+ }
+
+ /* GJA -- handle '-' and ',' * Be careful: "-hsync" is a keyword. */
+ else if ((c == ',') && !isalpha (configBuf[configPos]))
+ {
+ return COMMA;
+ }
+ else if ((c == '-') && !isalpha (configBuf[configPos]))
+ {
+ return DASH;
+ }
+
+ /*
+ * Numbers are returned immediately ...
+ */
+ if (isdigit (c))
+ {
+ int base;
+
+ if (c == '0')
+ if ((configBuf[configPos] == 'x') ||
+ (configBuf[configPos] == 'X'))
+ {
+ base = 16;
+ val.numType = PARSE_HEX;
+ }
+ else
+ {
+ base = 8;
+ val.numType = PARSE_OCTAL;
+ }
+ else
+ {
+ base = 10;
+ val.numType = PARSE_DECIMAL;
+ }
+
+ configRBuf[0] = c;
+ i = 1;
+ while (isdigit (c = configBuf[configPos++]) ||
+ (c == '.') || (c == 'x') || (c == 'X') ||
+ ((base == 16) && (((c >= 'a') && (c <= 'f')) ||
+ ((c >= 'A') && (c <= 'F')))))
+ configRBuf[i++] = c;
+ configPos--; /* GJA -- one too far */
+ configRBuf[i] = '\0';
+ val.num = xf86strToUL (configRBuf);
+ val.realnum = atof (configRBuf);
+ return (NUMBER);
+ }
+
+ /*
+ * All Strings START with a \" ...
+ */
+ else if (c == '\"')
+ {
+ i = -1;
+ do
+ {
+ configRBuf[++i] = (c = configBuf[configPos++]);
+ }
+ while ((c != '\"') && (c != '\n') && (c != '\r') && (c != '\0'));
+ configRBuf[i] = '\0';
+ val.str = xf86confmalloc (strlen (configRBuf) + 1);
+ strcpy (val.str, configRBuf); /* private copy ! */
+ return (STRING);
+ }
+
+ /*
+ * ... and now we MUST have a valid token. The search is
+ * handled later along with the pushed tokens.
+ */
+ else
+ {
+ configRBuf[0] = c;
+ i = 0;
+ do
+ {
+ configRBuf[++i] = (c = configBuf[configPos++]);;
+ }
+ while ((c != ' ') && (c != '\t') && (c != '\n') && (c != '\r') && (c != '\0') && (c != '#'));
+ --configPos;
+ configRBuf[i] = '\0';
+ i = 0;
+ }
+
+ }
+ else
+ {
+
+ /*
+ * Here we deal with pushed tokens. Reinitialize pushToken again. If
+ * the pushed token was NUMBER || STRING return them again ...
+ */
+ int temp = pushToken;
+ pushToken = LOCK_TOKEN;
+
+ if (temp == COMMA || temp == DASH)
+ return (temp);
+ if (temp == NUMBER || temp == STRING)
+ return (temp);
+ }
+
+ /*
+ * Joop, at last we have to lookup the token ...
+ */
+ if (tab)
+ {
+ i = 0;
+ while (tab[i].token != -1)
+ if (xf86nameCompare (configRBuf, tab[i].name) == 0)
+ return (tab[i].token);
+ else
+ i++;
+ }
+
+ return (ERROR_TOKEN); /* Error catcher */
+}
+
+int
+xf86getSubToken (char **comment)
+{
+ int token;
+
+ for (;;) {
+ token = xf86getToken(NULL);
+ if (token == COMMENT) {
+ if (comment)
+ *comment = xf86addComment(*comment, val.str);
+ }
+ else
+ return (token);
+ }
+ /*NOTREACHED*/
+}
+
+int
+xf86getSubTokenWithTab (char **comment, xf86ConfigSymTabRec *tab)
+{
+ int token;
+
+ for (;;) {
+ token = xf86getToken(tab);
+ if (token == COMMENT) {
+ if (comment)
+ *comment = xf86addComment(*comment, val.str);
+ }
+ else
+ return (token);
+ }
+ /*NOTREACHED*/
+}
+
+void
+xf86unGetToken (int token)
+{
+ pushToken = token;
+}
+
+char *
+xf86tokenString (void)
+{
+ return configRBuf;
+}
+
+int
+xf86pathIsAbsolute(const char *path)
+{
+ if (path && path[0] == '/')
+ return 1;
+ return 0;
+}
+
+/* A path is "safe" if it is relative and if it contains no ".." elements. */
+int
+xf86pathIsSafe(const char *path)
+{
+ if (xf86pathIsAbsolute(path))
+ return 0;
+
+ /* Compare with ".." */
+ if (!strcmp(path, ".."))
+ return 0;
+
+ /* Look for leading "../" */
+ if (!strncmp(path, "../", 3))
+ return 0;
+
+ /* Look for trailing "/.." */
+ if ((strlen(path) > 3) && !strcmp(path + strlen(path) - 3, "/.."))
+ return 0;
+
+ /* Look for "/../" */
+ if (strstr(path, "/../"))
+ return 0;
+
+ return 1;
+}
+
+/*
+ * This function substitutes the following escape sequences:
+ *
+ * %A cmdline argument as an absolute path (must be absolute to match)
+ * %R cmdline argument as a relative path
+ * %S cmdline argument as a "safe" path (relative, and no ".." elements)
+ * %X default config file name ("xorg.conf")
+ * %H hostname
+ * %E config file environment ($XORGCONFIG) as an absolute path
+ * %F config file environment ($XORGCONFIG) as a relative path
+ * %G config file environment ($XORGCONFIG) as a safe path
+ * %P projroot
+ * %M major version number
+ * %% %
+ */
+
+#ifndef XCONFIGFILE
+#define XCONFIGFILE "xorg.conf"
+#endif
+#ifndef PROJECTROOT
+#define PROJECTROOT "/usr/X11R6"
+#endif
+#ifndef XCONFENV
+#define XCONFENV "XORGCONFIG"
+#endif
+#define XFREE86CFGFILE "XF86Config"
+#ifndef XF86_VERSION_MAJOR
+#ifdef XVERSION
+#if XVERSION > 40000000
+#define XF86_VERSION_MAJOR (XVERSION / 10000000)
+#else
+#define XF86_VERSION_MAJOR (XVERSION / 1000)
+#endif
+#else
+#define XF86_VERSION_MAJOR 4
+#endif
+#endif
+
+#define BAIL_OUT do { \
+ xf86conffree(result); \
+ return NULL; \
+ } while (0)
+
+#define CHECK_LENGTH do { \
+ if (l > PATH_MAX) { \
+ BAIL_OUT; \
+ } \
+ } while (0)
+
+#define APPEND_STR(s) do { \
+ if (strlen(s) + l > PATH_MAX) { \
+ BAIL_OUT; \
+ } else { \
+ strcpy(result + l, s); \
+ l += strlen(s); \
+ } \
+ } while (0)
+
+static char *
+DoSubstitution(const char *template, const char *cmdline, const char *projroot,
+ int *cmdlineUsed, int *envUsed, char *XConfigFile)
+{
+ char *result;
+ int i, l;
+ static const char *env = NULL;
+ static char *hostname = NULL;
+ static char majorvers[3] = "";
+
+ if (!template)
+ return NULL;
+
+ if (cmdlineUsed)
+ *cmdlineUsed = 0;
+ if (envUsed)
+ *envUsed = 0;
+
+ result = xf86confmalloc(PATH_MAX + 1);
+ l = 0;
+ for (i = 0; template[i]; i++) {
+ if (template[i] != '%') {
+ result[l++] = template[i];
+ CHECK_LENGTH;
+ } else {
+ switch (template[++i]) {
+ case 'A':
+ if (cmdline && xf86pathIsAbsolute(cmdline)) {
+ APPEND_STR(cmdline);
+ if (cmdlineUsed)
+ *cmdlineUsed = 1;
+ } else
+ BAIL_OUT;
+ break;
+ case 'R':
+ if (cmdline && !xf86pathIsAbsolute(cmdline)) {
+ APPEND_STR(cmdline);
+ if (cmdlineUsed)
+ *cmdlineUsed = 1;
+ } else
+ BAIL_OUT;
+ break;
+ case 'S':
+ if (cmdline && xf86pathIsSafe(cmdline)) {
+ APPEND_STR(cmdline);
+ if (cmdlineUsed)
+ *cmdlineUsed = 1;
+ } else
+ BAIL_OUT;
+ break;
+ case 'X':
+ APPEND_STR(XConfigFile);
+ break;
+ case 'H':
+ if (!hostname) {
+ if ((hostname = xf86confmalloc(MAXHOSTNAMELEN + 1))) {
+ if (gethostname(hostname, MAXHOSTNAMELEN) == 0) {
+ hostname[MAXHOSTNAMELEN] = '\0';
+ } else {
+ xf86conffree(hostname);
+ hostname = NULL;
+ }
+ }
+ }
+ if (hostname)
+ APPEND_STR(hostname);
+ break;
+ case 'E':
+ if (!env)
+ env = getenv(XCONFENV);
+ if (env && xf86pathIsAbsolute(env)) {
+ APPEND_STR(env);
+ if (envUsed)
+ *envUsed = 1;
+ } else
+ BAIL_OUT;
+ break;
+ case 'F':
+ if (!env)
+ env = getenv(XCONFENV);
+ if (env && !xf86pathIsAbsolute(env)) {
+ APPEND_STR(env);
+ if (envUsed)
+ *envUsed = 1;
+ } else
+ BAIL_OUT;
+ break;
+ case 'G':
+ if (!env)
+ env = getenv(XCONFENV);
+ if (env && xf86pathIsSafe(env)) {
+ APPEND_STR(env);
+ if (envUsed)
+ *envUsed = 1;
+ } else
+ BAIL_OUT;
+ break;
+ case 'P':
+ if (projroot && xf86pathIsAbsolute(projroot))
+ APPEND_STR(projroot);
+ else
+ BAIL_OUT;
+ break;
+ case 'M':
+ if (!majorvers[0]) {
+ if (XF86_VERSION_MAJOR < 0 || XF86_VERSION_MAJOR > 99) {
+ fprintf(stderr, "XF86_VERSION_MAJOR is out of range\n");
+ BAIL_OUT;
+ } else
+ sprintf(majorvers, "%d", XF86_VERSION_MAJOR);
+ }
+ APPEND_STR(majorvers);
+ break;
+ case '%':
+ result[l++] = '%';
+ CHECK_LENGTH;
+ break;
+ default:
+ fprintf(stderr, "invalid escape %%%c found in path template\n",
+ template[i]);
+ BAIL_OUT;
+ break;
+ }
+ }
+ }
+#ifdef DEBUG
+ fprintf(stderr, "Converted `%s' to `%s'\n", template, result);
+#endif
+ return result;
+}
+
+/*
+ * xf86openConfigFile --
+ *
+ * This function take a config file search path (optional), a command-line
+ * specified file name (optional) and the ProjectRoot path (optional) and
+ * locates and opens a config file based on that information. If a
+ * command-line file name is specified, then this function fails if none
+ * of the located files.
+ *
+ * The return value is a pointer to the actual name of the file that was
+ * opened. When no file is found, the return value is NULL.
+ *
+ * The escape sequences allowed in the search path are defined above.
+ *
+ */
+
+#ifndef DEFAULT_CONF_PATH
+#define DEFAULT_CONF_PATH "/etc/X11/%S," \
+ "%P/etc/X11/%S," \
+ "/etc/X11/%G," \
+ "%P/etc/X11/%G," \
+ "/etc/X11/%X-%M," \
+ "/etc/X11/%X," \
+ "/etc/%X," \
+ "%P/etc/X11/%X.%H," \
+ "%P/etc/X11/%X-%M," \
+ "%P/etc/X11/%X," \
+ "%P/lib/X11/%X.%H," \
+ "%P/lib/X11/%X-%M," \
+ "%P/lib/X11/%X"
+#endif
+
+const char *
+xf86openConfigFile(const char *path, const char *cmdline, const char *projroot)
+{
+ char *pathcopy;
+ const char *template;
+ int cmdlineUsed = 0;
+
+ configFile = NULL;
+ configPos = 0; /* current readers position */
+ configLineNo = 0; /* linenumber */
+ pushToken = LOCK_TOKEN;
+
+ if (!path || !path[0])
+ path = DEFAULT_CONF_PATH;
+ pathcopy = xf86confmalloc(strlen(path) + 1);
+ strcpy(pathcopy, path);
+ if (!projroot || !projroot[0])
+ projroot = PROJECTROOT;
+
+ template = strtok(pathcopy, ",");
+
+ /* First, search for a config file. */
+ while (template && !configFile) {
+ if ((configPath = DoSubstitution(template, cmdline, projroot,
+ &cmdlineUsed, NULL,
+ XCONFIGFILE))) {
+ if ((configFile = fopen(configPath, "r")) != 0) {
+ if (cmdline && !cmdlineUsed) {
+ fclose(configFile);
+ configFile = NULL;
+ }
+ }
+ }
+ if (configPath && !configFile) {
+ xf86conffree(configPath);
+ configPath = NULL;
+ }
+ template = strtok(NULL, ",");
+ }
+
+ /* Then search for fallback */
+ if (!configFile) {
+ strcpy(pathcopy, path);
+ template = strtok(pathcopy, ",");
+
+ while (template && !configFile) {
+ if ((configPath = DoSubstitution(template, cmdline, projroot,
+ &cmdlineUsed, NULL,
+ XFREE86CFGFILE))) {
+ if ((configFile = fopen(configPath, "r")) != 0) {
+ if (cmdline && !cmdlineUsed) {
+ fclose(configFile);
+ configFile = NULL;
+ }
+ }
+ }
+ if (configPath && !configFile) {
+ xf86conffree(configPath);
+ configPath = NULL;
+ }
+ template = strtok(NULL, ",");
+ }
+ }
+
+ xf86conffree(pathcopy);
+ if (!configFile) {
+
+ return NULL;
+ }
+
+ configBuf = xf86confmalloc (CONFIG_BUF_LEN);
+ configRBuf = xf86confmalloc (CONFIG_BUF_LEN);
+ configBuf[0] = '\0'; /* sanity ... */
+
+ return configPath;
+}
+
+void
+xf86closeConfigFile (void)
+{
+ xf86conffree (configPath);
+ configPath = NULL;
+ xf86conffree (configRBuf);
+ configRBuf = NULL;
+ xf86conffree (configBuf);
+ configBuf = NULL;
+
+ if (configFile) {
+ fclose (configFile);
+ configFile = NULL;
+ } else {
+ builtinConfig = NULL;
+ builtinIndex = 0;
+ }
+}
+
+void
+xf86setBuiltinConfig(const char *config[])
+{
+ builtinConfig = config;
+ configPath = xf86configStrdup("<builtin configuration>");
+ configBuf = xf86confmalloc (CONFIG_BUF_LEN);
+ configRBuf = xf86confmalloc (CONFIG_BUF_LEN);
+ configBuf[0] = '\0'; /* sanity ... */
+
+}
+
+void
+xf86parseError (char *format,...)
+{
+ va_list ap;
+
+ ErrorF ("Parse error on line %d of section %s in file %s\n\t",
+ configLineNo, configSection, configPath);
+ va_start (ap, format);
+ VErrorF (format, ap);
+ va_end (ap);
+
+ ErrorF ("\n");
+}
+
+void
+xf86validationError (char *format,...)
+{
+ va_list ap;
+
+ ErrorF ("Data incomplete in file %s\n\t", configPath);
+ va_start (ap, format);
+ VErrorF (format, ap);
+ va_end (ap);
+
+ ErrorF ("\n");
+}
+
+void
+xf86setSection (char *section)
+{
+ if (configSection)
+ xf86conffree(configSection);
+ configSection = xf86confmalloc(strlen (section) + 1);
+ strcpy (configSection, section);
+}
+
+/*
+ * xf86getToken --
+ * Lookup a string if it is actually a token in disguise.
+ */
+int
+xf86getStringToken (xf86ConfigSymTabRec * tab)
+{
+ return StringToToken (val.str, tab);
+}
+
+static int
+StringToToken (char *str, xf86ConfigSymTabRec * tab)
+{
+ int i;
+
+ for (i = 0; tab[i].token != -1; i++)
+ {
+ if (!xf86nameCompare (tab[i].name, str))
+ return tab[i].token;
+ }
+ return (ERROR_TOKEN);
+}
+
+
+/*
+ * Compare two names. The characters '_', ' ', and '\t' are ignored
+ * in the comparison.
+ */
+_X_EXPORT int
+xf86nameCompare (const char *s1, const char *s2)
+{
+ char c1, c2;
+
+ if (!s1 || *s1 == 0) {
+ if (!s2 || *s2 == 0)
+ return (0);
+ else
+ return (1);
+ }
+
+ while (*s1 == '_' || *s1 == ' ' || *s1 == '\t')
+ s1++;
+ while (*s2 == '_' || *s2 == ' ' || *s2 == '\t')
+ s2++;
+ c1 = (isupper (*s1) ? tolower (*s1) : *s1);
+ c2 = (isupper (*s2) ? tolower (*s2) : *s2);
+ while (c1 == c2)
+ {
+ if (c1 == '\0')
+ return (0);
+ s1++;
+ s2++;
+ while (*s1 == '_' || *s1 == ' ' || *s1 == '\t')
+ s1++;
+ while (*s2 == '_' || *s2 == ' ' || *s2 == '\t')
+ s2++;
+ c1 = (isupper (*s1) ? tolower (*s1) : *s1);
+ c2 = (isupper (*s2) ? tolower (*s2) : *s2);
+ }
+ return (c1 - c2);
+}
+
+char *
+xf86addComment(char *cur, char *add)
+{
+ char *str;
+ int len, curlen, iscomment, hasnewline = 0, endnewline;
+
+ if (add == NULL || add[0] == '\0')
+ return (cur);
+
+ if (cur) {
+ curlen = strlen(cur);
+ if (curlen)
+ hasnewline = cur[curlen - 1] == '\n';
+ eol_seen = 0;
+ }
+ else
+ curlen = 0;
+
+ str = add;
+ iscomment = 0;
+ while (*str) {
+ if (*str != ' ' && *str != '\t')
+ break;
+ ++str;
+ }
+ iscomment = (*str == '#');
+
+ len = strlen(add);
+ endnewline = add[len - 1] == '\n';
+ len += 1 + iscomment + (!hasnewline) + (!endnewline) + eol_seen;
+
+ if ((str = xf86confrealloc(cur, len + curlen)) == NULL)
+ return (cur);
+
+ cur = str;
+
+ if (eol_seen || (curlen && !hasnewline))
+ cur[curlen++] = '\n';
+ if (!iscomment)
+ cur[curlen++] = '#';
+ strcpy(cur + curlen, add);
+ if (!endnewline)
+ strcat(cur, "\n");
+
+ return (cur);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 07:25:07 +0000