1054 lines
23 KiB
C
1054 lines
23 KiB
C
/*
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*
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* Copyright (c) 1997 Metro Link Incorporated
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of the Metro Link shall not be
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* used in advertising or otherwise to promote the sale, use or other dealings
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* in this Software without prior written authorization from Metro Link.
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*
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*/
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/*
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* Copyright (c) 1997-2003 by The XFree86 Project, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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|
* 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:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of the copyright holder(s)
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* and author(s) shall not be used in advertising or otherwise to promote
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* the sale, use or other dealings in this Software without prior written
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* authorization from the copyright holder(s) and author(s).
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*/
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/* View/edit this file with tab stops set to 4 */
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdarg.h>
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#if !defined(X_NOT_POSIX)
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#if defined(_POSIX_SOURCE)
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#include <limits.h>
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#else
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#define _POSIX_SOURCE
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#include <limits.h>
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#undef _POSIX_SOURCE
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#endif /* _POSIX_SOURCE */
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#endif /* !X_NOT_POSIX */
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#if !defined(PATH_MAX)
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#if defined(MAXPATHLEN)
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#define PATH_MAX MAXPATHLEN
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#else
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#define PATH_MAX 1024
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#endif /* MAXPATHLEN */
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#endif /* !PATH_MAX */
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#if !defined(MAXHOSTNAMELEN)
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#define MAXHOSTNAMELEN 32
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#endif /* !MAXHOSTNAMELEN */
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#include "Configint.h"
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#include "xf86tokens.h"
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#define CONFIG_BUF_LEN 1024
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static int StringToToken (char *, xf86ConfigSymTabRec *);
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static FILE *configFile = NULL;
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static const char **builtinConfig = NULL;
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static int builtinIndex = 0;
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static int configPos = 0; /* current readers position */
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static int configLineNo = 0; /* linenumber */
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static char *configBuf, *configRBuf; /* buffer for lines */
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static char *configPath; /* path to config file */
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static char *configSection = NULL; /* name of current section being parsed */
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static int pushToken = LOCK_TOKEN;
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static int eol_seen = 0; /* private state to handle comments */
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LexRec val;
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#ifdef __UNIXOS2__
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extern char *__XOS2RedirRoot(char *path);
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#endif
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/*
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* xf86strToUL --
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*
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* A portable, but restricted, version of strtoul(). It only understands
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* hex, octal, and decimal. But it's good enough for our needs.
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*/
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static unsigned int
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xf86strToUL (char *str)
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{
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int base = 10;
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char *p = str;
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unsigned int tot = 0;
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if (*p == '0')
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{
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p++;
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if ((*p == 'x') || (*p == 'X'))
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{
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p++;
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base = 16;
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}
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else
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base = 8;
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}
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while (*p)
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{
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if ((*p >= '0') && (*p <= ((base == 8) ? '7' : '9')))
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{
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tot = tot * base + (*p - '0');
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}
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else if ((base == 16) && (*p >= 'a') && (*p <= 'f'))
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{
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tot = tot * base + 10 + (*p - 'a');
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}
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else if ((base == 16) && (*p >= 'A') && (*p <= 'F'))
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{
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tot = tot * base + 10 + (*p - 'A');
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}
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else
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{
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return (tot);
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}
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p++;
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}
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return (tot);
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}
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/*
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* xf86getNextLine --
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*
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* read from the configFile FILE stream until we encounter a new
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* line; this is effectively just a big wrapper for fgets(3).
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*
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* xf86getToken() assumes that we will read up to the next
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* newline; we need to grow configBuf and configRBuf as needed to
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* support that.
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*/
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static char*
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xf86getNextLine(void)
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{
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static int configBufLen = CONFIG_BUF_LEN;
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char *tmpConfigBuf, *tmpConfigRBuf;
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int c, i, pos = 0, eolFound = 0;
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char *ret = NULL;
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/*
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* reallocate the string if it was grown last time (i.e., is no
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* longer CONFIG_BUF_LEN); we malloc the new strings first, so
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* that if either of the mallocs fail, we can fall back on the
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* existing buffer allocations
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*/
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if (configBufLen != CONFIG_BUF_LEN) {
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tmpConfigBuf = xf86confmalloc(CONFIG_BUF_LEN);
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tmpConfigRBuf = xf86confmalloc(CONFIG_BUF_LEN);
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if (!tmpConfigBuf || !tmpConfigRBuf) {
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/*
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* at least one of the mallocs failed; keep the old buffers
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* and free any partial allocations
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*/
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xf86conffree(tmpConfigBuf);
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xf86conffree(tmpConfigRBuf);
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} else {
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/*
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* malloc succeeded; free the old buffers and use the new
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* buffers
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*/
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configBufLen = CONFIG_BUF_LEN;
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xf86conffree(configBuf);
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xf86conffree(configRBuf);
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configBuf = tmpConfigBuf;
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configRBuf = tmpConfigRBuf;
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}
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}
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/* read in another block of chars */
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do {
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ret = fgets(configBuf + pos, configBufLen - pos - 1, configFile);
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if (!ret) break;
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/* search for EOL in the new block of chars */
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for (i = pos; i < (configBufLen - 1); i++) {
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c = configBuf[i];
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if (c == '\0') break;
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if ((c == '\n') || (c == '\r')) {
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eolFound = 1;
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break;
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}
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}
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/*
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* if we didn't find EOL, then grow the string and
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* read in more
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*/
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if (!eolFound) {
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tmpConfigBuf = xf86confrealloc(configBuf, configBufLen + CONFIG_BUF_LEN);
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tmpConfigRBuf = xf86confrealloc(configRBuf, configBufLen + CONFIG_BUF_LEN);
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if (!tmpConfigBuf || !tmpConfigRBuf) {
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/*
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* at least one of the reallocations failed; use the
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* new allocation that succeeded, but we have to
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* fallback to the previous configBufLen size and use
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* the string we have, even though we don't have an
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* EOL
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*/
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if (tmpConfigBuf) configBuf = tmpConfigBuf;
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if (tmpConfigRBuf) configRBuf = tmpConfigRBuf;
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break;
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} else {
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/* reallocation succeeded */
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configBuf = tmpConfigBuf;
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configRBuf = tmpConfigRBuf;
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pos = i;
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configBufLen += CONFIG_BUF_LEN;
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}
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}
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} while (!eolFound);
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return (ret);
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}
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/*
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* xf86getToken --
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* Read next Token from the config file. Handle the global variable
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* pushToken.
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*/
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int
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xf86getToken (xf86ConfigSymTabRec * tab)
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{
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int c, i;
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/*
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* First check whether pushToken has a different value than LOCK_TOKEN.
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* In this case rBuf[] contains a valid STRING/TOKEN/NUMBER. But in the
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* oth * case the next token must be read from the input.
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*/
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if (pushToken == EOF_TOKEN)
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return (EOF_TOKEN);
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else if (pushToken == LOCK_TOKEN)
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{
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/*
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* eol_seen is only set for the first token after a newline.
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*/
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eol_seen = 0;
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c = configBuf[configPos];
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/*
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* Get start of next Token. EOF is handled,
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* whitespaces are skipped.
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*/
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again:
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if (!c)
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{
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char *ret;
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if (configFile)
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ret = xf86getNextLine();
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else {
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if (builtinConfig[builtinIndex] == NULL)
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ret = NULL;
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else {
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ret = strncpy(configBuf, builtinConfig[builtinIndex],
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CONFIG_BUF_LEN);
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builtinIndex++;
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}
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}
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if (ret == NULL)
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{
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return (pushToken = EOF_TOKEN);
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}
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configLineNo++;
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configPos = 0;
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eol_seen = 1;
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}
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i = 0;
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for (;;) {
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c = configBuf[configPos++];
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configRBuf[i++] = c;
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switch (c) {
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case ' ':
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case '\t':
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case '\r':
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continue;
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case '\n':
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i = 0;
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continue;
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}
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break;
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}
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if (c == '\0')
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goto again;
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if (c == '#')
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{
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do
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{
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configRBuf[i++] = (c = configBuf[configPos++]);
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}
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while ((c != '\n') && (c != '\r') && (c != '\0'));
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configRBuf[i] = '\0';
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/* XXX no private copy.
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* Use xf86addComment when setting a comment.
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*/
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val.str = configRBuf;
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return (COMMENT);
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}
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/* GJA -- handle '-' and ',' * Be careful: "-hsync" is a keyword. */
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else if ((c == ',') && !isalpha (configBuf[configPos]))
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{
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return COMMA;
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}
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else if ((c == '-') && !isalpha (configBuf[configPos]))
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{
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return DASH;
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}
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/*
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* Numbers are returned immediately ...
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*/
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if (isdigit (c))
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{
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int base;
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if (c == '0')
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if ((configBuf[configPos] == 'x') ||
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(configBuf[configPos] == 'X'))
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base = 16;
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else
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base = 8;
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else
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base = 10;
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configRBuf[0] = c;
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i = 1;
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while (isdigit (c = configBuf[configPos++]) ||
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(c == '.') || (c == 'x') || (c == 'X') ||
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((base == 16) && (((c >= 'a') && (c <= 'f')) ||
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((c >= 'A') && (c <= 'F')))))
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configRBuf[i++] = c;
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configPos--; /* GJA -- one too far */
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configRBuf[i] = '\0';
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val.num = xf86strToUL (configRBuf);
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val.realnum = atof (configRBuf);
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return (NUMBER);
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}
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/*
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* All Strings START with a \" ...
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*/
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else if (c == '\"')
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{
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i = -1;
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do
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{
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configRBuf[++i] = (c = configBuf[configPos++]);
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}
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while ((c != '\"') && (c != '\n') && (c != '\r') && (c != '\0'));
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configRBuf[i] = '\0';
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val.str = xf86confmalloc (strlen (configRBuf) + 1);
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strcpy (val.str, configRBuf); /* private copy ! */
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return (STRING);
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}
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/*
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* ... and now we MUST have a valid token. The search is
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* handled later along with the pushed tokens.
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*/
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else
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{
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configRBuf[0] = c;
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i = 0;
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do
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{
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configRBuf[++i] = (c = configBuf[configPos++]);;
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}
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while ((c != ' ') && (c != '\t') && (c != '\n') && (c != '\r') && (c != '\0') && (c != '#'));
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--configPos;
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configRBuf[i] = '\0';
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i = 0;
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}
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}
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else
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{
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/*
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* Here we deal with pushed tokens. Reinitialize pushToken again. If
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* the pushed token was NUMBER || STRING return them again ...
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*/
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int temp = pushToken;
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pushToken = LOCK_TOKEN;
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if (temp == COMMA || temp == DASH)
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return (temp);
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if (temp == NUMBER || temp == STRING)
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return (temp);
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}
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/*
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* Joop, at last we have to lookup the token ...
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*/
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if (tab)
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{
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i = 0;
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while (tab[i].token != -1)
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if (xf86nameCompare (configRBuf, tab[i].name) == 0)
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return (tab[i].token);
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else
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i++;
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}
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return (ERROR_TOKEN); /* Error catcher */
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}
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|
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int
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xf86getSubToken (char **comment)
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{
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int token;
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for (;;) {
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token = xf86getToken(NULL);
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if (token == COMMENT) {
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if (comment)
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*comment = xf86addComment(*comment, val.str);
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}
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else
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return (token);
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}
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/*NOTREACHED*/
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}
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int
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xf86getSubTokenWithTab (char **comment, xf86ConfigSymTabRec *tab)
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{
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int token;
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for (;;) {
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token = xf86getToken(tab);
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if (token == COMMENT) {
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if (comment)
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*comment = xf86addComment(*comment, val.str);
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}
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else
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return (token);
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}
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/*NOTREACHED*/
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}
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|
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void
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xf86unGetToken (int token)
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{
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pushToken = token;
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}
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char *
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xf86tokenString (void)
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{
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return configRBuf;
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}
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|
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int
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xf86pathIsAbsolute(const char *path)
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{
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if (path && path[0] == '/')
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return 1;
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#ifdef __UNIXOS2__
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if (path && (path[0] == '\\' || (path[1] == ':')))
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return 1;
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#endif
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return 0;
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}
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|
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/* A path is "safe" if it is relative and if it contains no ".." elements. */
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int
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xf86pathIsSafe(const char *path)
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{
|
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if (xf86pathIsAbsolute(path))
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return 0;
|
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|
|
/* Compare with ".." */
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if (!strcmp(path, ".."))
|
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return 0;
|
|
|
|
/* Look for leading "../" */
|
|
if (!strncmp(path, "../", 3))
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return 0;
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|
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/* Look for trailing "/.." */
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if ((strlen(path) > 3) && !strcmp(path + strlen(path) - 3, "/.."))
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return 0;
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|
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/* Look for "/../" */
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if (strstr(path, "/../"))
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return 0;
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|
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return 1;
|
|
}
|
|
|
|
/*
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|
* This function substitutes the following escape sequences:
|
|
*
|
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* %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
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|
* %D $HOME
|
|
* %P projroot
|
|
* %M major version number
|
|
* %% %
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|
* %& UNIXOS2 only: prepend X11ROOT env var
|
|
*/
|
|
|
|
#ifndef XCONFIGFILE
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|
#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, *home = NULL;
|
|
static char *hostname = NULL;
|
|
static char majorvers[3] = "";
|
|
#ifdef __UNIXOS2__
|
|
static char *x11root = NULL;
|
|
#endif
|
|
|
|
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 'D':
|
|
if (!home)
|
|
home = getenv("HOME");
|
|
if (home && xf86pathIsAbsolute(home))
|
|
APPEND_STR(home);
|
|
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;
|
|
#ifdef __UNIXOS2__
|
|
case '&':
|
|
if (!x11root)
|
|
x11root = getenv("X11ROOT");
|
|
if (x11root)
|
|
APPEND_STR(x11root);
|
|
else
|
|
BAIL_OUT;
|
|
break;
|
|
#endif
|
|
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.
|
|
*/
|
|
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);
|
|
}
|