666 lines
16 KiB
C
666 lines
16 KiB
C
/*
|
|
Copyright 1987, 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.
|
|
* Copyright 1990, 1991 Network Computing Devices;
|
|
* Portions Copyright 1987 by Digital Equipment Corporation
|
|
*
|
|
* 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, and that the names of Network Computing Devices,
|
|
* or Digital not be used in advertising or
|
|
* publicity pertaining to distribution of the software without specific,
|
|
* written prior permission. Network Computing Devices, or Digital
|
|
* make no representations about the
|
|
* suitability of this software for any purpose. It is provided "as is"
|
|
* without express or implied warranty.
|
|
*
|
|
* NETWORK COMPUTING DEVICES, AND DIGITAL DISCLAIM ALL WARRANTIES WITH
|
|
* REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
|
|
* AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES, OR DIGITAL BE
|
|
* LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
|
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
|
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <ctype.h>
|
|
#include <X11/Xtrans/Xtrans.h>
|
|
#include <X11/Xos.h>
|
|
#include "misc.h"
|
|
#include "configstr.h"
|
|
#include "osdep.h"
|
|
#include "globals.h"
|
|
#include "access.h"
|
|
#include "difsutils.h"
|
|
#include <X11/fonts/fontutil.h>
|
|
#include "difs.h"
|
|
|
|
/* libXfont/src/bitmap/snfstr.h */
|
|
extern void SnfSetFormat(int bit, int byte, int glyph, int scan);
|
|
|
|
static const char * const default_config_files[] = {
|
|
#ifdef DEFAULT_CONFIG_FILE
|
|
DEFAULT_CONFIG_FILE,
|
|
#else
|
|
"/usr/lib/X11/fs/config",
|
|
#endif
|
|
NULL
|
|
};
|
|
|
|
static char *font_catalogue = NULL;
|
|
|
|
static char *config_set_int(ConfigOptionPtr parm, char *val);
|
|
static char *config_set_bool(ConfigOptionPtr parm, char *val);
|
|
static char *config_set_catalogue(ConfigOptionPtr parm, char *val);
|
|
static char *config_set_glyph_caching_mode(ConfigOptionPtr parm, char *val);
|
|
static char *config_set_list(ConfigOptionPtr parm, char *val);
|
|
static char *config_set_file(ConfigOptionPtr parm, char *val);
|
|
static char *config_set_resolutions(ConfigOptionPtr parm, char *val);
|
|
static char *config_set_ignored_transports(ConfigOptionPtr parm, char *val);
|
|
static char *config_set_snf_format(ConfigOptionPtr parm, char *val);
|
|
|
|
/* these need to be in lower case and alphabetical order so a
|
|
* binary search lookup can be used
|
|
*/
|
|
static ConfigOptionRec config_options[] = {
|
|
{"alternate-servers", config_set_list},
|
|
{"catalogue", config_set_catalogue},
|
|
{"client-limit", config_set_int},
|
|
{"clone-self", config_set_bool},
|
|
{"default-point-size", config_set_int},
|
|
{"default-resolutions", config_set_resolutions},
|
|
{"deferglyphs", config_set_glyph_caching_mode},
|
|
{"error-file", config_set_file},
|
|
{"no-listen", config_set_ignored_transports},
|
|
{"port", config_set_int},
|
|
{"server-number", config_set_int},
|
|
{"snf-format", config_set_snf_format},
|
|
{"trusted-clients", config_set_list},
|
|
{"use-syslog", config_set_bool},
|
|
{NULL, NULL},
|
|
};
|
|
|
|
/* max size in bytes of config file */
|
|
#define CONFIG_MAX_FILESIZE 32767
|
|
|
|
#define CONFIG_ERR_MEMORY \
|
|
"CONFIG: insufficient memory to load configuration file \"%s\"\n"
|
|
#define CONFIG_ERR_OPEN "CONFIG: can't open configuration file \"%s\"\n"
|
|
#define CONFIG_ERR_READ "CONFIG: error reading configuration file \"%s\"\n"
|
|
#define CONFIG_ERR_VALUE "CONFIG: bad value \"%s\" for parameter \"%s\"\n"
|
|
#define CONFIG_ERR_UNKNOWN "CONFIG: unknown parameter \"%s\"\n"
|
|
#define CONFIG_ERR_NOEQUALS "CONFIG: missing '=' after parameter \"%s\"\n"
|
|
#define CONFIG_ERR_RANGE "CONFIG: value out of range for parameter \"%s\"\n"
|
|
#define CONFIG_ERR_SYNTAX "CONFIG: syntax error near parameter \"%s\"\n"
|
|
#define CONFIG_ERR_NOVALUE "CONFIG: missing value for parameter \"%s\"\n"
|
|
#define CONFIG_ERR_EXTRAVALUE "CONFIG: extra value for parameter \"%s\"\n"
|
|
|
|
#define iseol(c) ((c) == '\n' || (c) == '\r' || (c) == '\f')
|
|
#define skip_whitespace(c) while(isspace(*(c)) || *(c) == ',') (c)++;
|
|
#define skip_val(c) while(!isspace(*(c)) && *(c) != ',' && *(c) != '\0')\
|
|
(c) ++;
|
|
#define skip_list_val(c) while(!isspace(*(c)) && *(c) != '\0')\
|
|
(c) ++;
|
|
#define blank_comment(c) while (!iseol(*(c)) && *(c) != '\0') \
|
|
*(c)++= ' ';
|
|
|
|
static char *
|
|
next_assign(char *c)
|
|
{
|
|
int nesting = 0;
|
|
|
|
while (*c != '\0') {
|
|
if (*c == '(')
|
|
nesting++;
|
|
else if (*c == ')')
|
|
nesting--;
|
|
else if (*c == '=' && nesting == 0)
|
|
return c;
|
|
c++;
|
|
}
|
|
return (char *) 0;
|
|
}
|
|
|
|
static void
|
|
strip_comments(char *data)
|
|
{
|
|
char *c;
|
|
|
|
c = data;
|
|
while ((c = strchr(c, '#')) != NULL) {
|
|
if (c == data || *(c - 1) != '\\') {
|
|
blank_comment(c);
|
|
} else {
|
|
c++;
|
|
}
|
|
}
|
|
}
|
|
|
|
static ConfigOptionPtr
|
|
match_param_name(char *name)
|
|
{
|
|
int pos,
|
|
rc,
|
|
low,
|
|
high;
|
|
|
|
low = 0;
|
|
high = sizeof(config_options) / sizeof(ConfigOptionRec) - 2;
|
|
pos = high >> 1;
|
|
|
|
while (low <= high) {
|
|
rc = strcmp(name, config_options[pos].parm_name);
|
|
if (rc == 0) {
|
|
return &config_options[pos];
|
|
} else if (rc < 0) {
|
|
high = pos - 1;
|
|
} else {
|
|
low = pos + 1;
|
|
}
|
|
pos = ((high + low) >> 1);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static int
|
|
parse_config(char *data)
|
|
{
|
|
char *c,
|
|
*val = NULL,
|
|
*next_eq,
|
|
*consumed,
|
|
*p;
|
|
char param_name[64];
|
|
Bool equals_missing;
|
|
ConfigOptionPtr param;
|
|
|
|
c = data;
|
|
skip_whitespace(c);
|
|
|
|
while (*c != '\0') {
|
|
equals_missing = FALSE;
|
|
|
|
/* get parm name in lower case */
|
|
p = c;
|
|
while (isalnum(*c) || *c == '-') {
|
|
if (isupper(*c))
|
|
*c = tolower(*c);
|
|
c++;
|
|
}
|
|
memmove( param_name, p, min(sizeof(param_name), (int) (c - p)));
|
|
param_name[(int) (c - p)] = '\0';
|
|
|
|
/* check for junk */
|
|
if (!isspace(*c) && *c != '=') {
|
|
ErrorF(CONFIG_ERR_SYNTAX, param_name);
|
|
/* eat garbage */
|
|
while (!isspace(*c) && *c != '=' && *c != '\0')
|
|
c++;
|
|
}
|
|
skip_whitespace(c);
|
|
if (*c != '=') {
|
|
ErrorF(CONFIG_ERR_NOEQUALS, param_name);
|
|
equals_missing = TRUE;
|
|
} else {
|
|
c++;
|
|
}
|
|
|
|
skip_whitespace(c);
|
|
|
|
/* find next assignment to guess where the value ends */
|
|
if ((next_eq = next_assign(c)) != NULL) {
|
|
/* back up over whitespace */
|
|
for (val = next_eq - 1; val >= c &&
|
|
(isspace(*val) || *val == ',');
|
|
val--);
|
|
|
|
/* back over parm name */
|
|
for (; val >= c && (isalnum(*val) || *val == '-'); val--);
|
|
|
|
if (val <= c) {
|
|
/* no value, ignore */
|
|
ErrorF(CONFIG_ERR_NOVALUE, param_name);
|
|
continue;
|
|
}
|
|
*val = '\0';
|
|
} else if (*c == '\0') {
|
|
/* no value, ignore */
|
|
ErrorF(CONFIG_ERR_NOVALUE, param_name);
|
|
continue;
|
|
}
|
|
/* match parm name */
|
|
if (equals_missing) {
|
|
equals_missing = FALSE;
|
|
} else if ((param = match_param_name(param_name)) == NULL) {
|
|
ErrorF(CONFIG_ERR_UNKNOWN, param_name);
|
|
} else {
|
|
consumed = (param->set_func) (param, c);
|
|
|
|
skip_whitespace(consumed);
|
|
if (*consumed != '\0') {
|
|
ErrorF(CONFIG_ERR_EXTRAVALUE,
|
|
param_name);
|
|
}
|
|
}
|
|
|
|
if (next_eq != NULL)
|
|
c = val + 1;
|
|
else /* last setting */
|
|
break;
|
|
}
|
|
return FSSuccess;
|
|
}
|
|
|
|
/*
|
|
* handles anything that should be set once the file is parsed
|
|
*/
|
|
void
|
|
SetConfigValues(void)
|
|
{
|
|
int err,
|
|
num;
|
|
|
|
if (font_catalogue == NULL) {
|
|
FatalError("font catalogue is missing/empty\n");
|
|
}
|
|
|
|
err = SetFontCatalogue(font_catalogue, &num);
|
|
if (err != FSSuccess) {
|
|
FatalError("element #%d (starting at 0) of font path is bad or has a bad font:\n\"%s\"\n",
|
|
num, font_catalogue);
|
|
}
|
|
InitErrors();
|
|
fsfree((char *) font_catalogue);
|
|
font_catalogue = NULL;
|
|
}
|
|
|
|
|
|
/* If argument is NULL, uses first file found from default_config_files */
|
|
int
|
|
ReadConfigFile(const char *filename)
|
|
{
|
|
FILE *fp = NULL;
|
|
int ret;
|
|
int len;
|
|
int i;
|
|
char *data;
|
|
|
|
data = (char *) fsalloc(CONFIG_MAX_FILESIZE);
|
|
if (!data) {
|
|
ErrorF(CONFIG_ERR_MEMORY, filename);
|
|
return FSBadAlloc;
|
|
}
|
|
if (filename != NULL) {
|
|
fp = fopen(filename, "r");
|
|
if (fp == NULL) {
|
|
ErrorF(CONFIG_ERR_OPEN, filename);
|
|
}
|
|
} else {
|
|
for (i = 0; default_config_files[i] != NULL; i++) {
|
|
filename = default_config_files[i];
|
|
if ((fp = fopen(filename, "r")) != NULL) {
|
|
if (configfilename == NULL) {
|
|
configfilename = strdup(filename); /* save for clones */
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if (fp == NULL) {
|
|
for (i = 0; default_config_files[i] != NULL; i++) {
|
|
ErrorF(CONFIG_ERR_OPEN, default_config_files[i]);
|
|
}
|
|
}
|
|
}
|
|
if (fp == NULL) {
|
|
fsfree(data);
|
|
return FSBadName;
|
|
}
|
|
ret = fread(data, sizeof(char), CONFIG_MAX_FILESIZE, fp);
|
|
if (ret <= 0) {
|
|
fsfree(data);
|
|
(void) fclose(fp);
|
|
ErrorF(CONFIG_ERR_READ, filename);
|
|
return FSBadName;
|
|
}
|
|
len = ftell(fp);
|
|
len = min(len, CONFIG_MAX_FILESIZE);
|
|
data[len] = '\0'; /* NULL terminate the data */
|
|
|
|
(void) fclose(fp);
|
|
|
|
strip_comments(data);
|
|
ret = parse_config(data);
|
|
|
|
fsfree(data);
|
|
|
|
return ret;
|
|
}
|
|
|
|
struct nameVal {
|
|
const char *name;
|
|
int val;
|
|
};
|
|
|
|
static char *
|
|
config_parse_nameVal (
|
|
ConfigOptionPtr parm,
|
|
char *c,
|
|
int *ret,
|
|
int *pval,
|
|
struct nameVal *name_val)
|
|
{
|
|
char *start,
|
|
t;
|
|
int i,
|
|
len;
|
|
|
|
start = c;
|
|
skip_val(c);
|
|
t = *c;
|
|
*c = '\0';
|
|
len = c - start;
|
|
|
|
for (i = 0; name_val[i].name; i++) {
|
|
if (!strncmpnocase(start, name_val[i].name, len)) {
|
|
*pval = name_val[i].val;
|
|
*ret = 0;
|
|
*c = t;
|
|
return c;
|
|
}
|
|
}
|
|
ErrorF(CONFIG_ERR_VALUE, start, parm->parm_name);
|
|
*c = t;
|
|
*ret = -1;
|
|
return c;
|
|
}
|
|
|
|
static char *
|
|
config_parse_bool (
|
|
ConfigOptionPtr parm,
|
|
char *c,
|
|
int *ret,
|
|
Bool *pval)
|
|
{
|
|
static struct nameVal bool_val[] = {
|
|
{ "yes", TRUE },
|
|
{ "on", TRUE },
|
|
{ "1", TRUE },
|
|
{ "true", TRUE },
|
|
{ "no", FALSE },
|
|
{ "off", FALSE },
|
|
{ "0", FALSE },
|
|
{ "false", FALSE },
|
|
{ (char *) 0, 0 },
|
|
};
|
|
return config_parse_nameVal (parm, c, ret, pval, bool_val);
|
|
}
|
|
|
|
static char *
|
|
config_parse_int(
|
|
ConfigOptionPtr parm,
|
|
char *c,
|
|
int *ret,
|
|
int *pval)
|
|
{
|
|
char *start,
|
|
t;
|
|
|
|
start = c;
|
|
while (*c != '\0' && !isspace(*c) && *c != ',') {
|
|
if (!isdigit(*c)) { /* error */
|
|
skip_val(c);
|
|
t = *c;
|
|
*c = '\0';
|
|
ErrorF(CONFIG_ERR_VALUE, start, parm->parm_name);
|
|
*ret = -1;
|
|
*c = t;
|
|
return c;
|
|
}
|
|
c++;
|
|
}
|
|
t = *c;
|
|
*c = '\0';
|
|
*ret = 0;
|
|
*pval = atoi(start);
|
|
*c = t;
|
|
return c;
|
|
}
|
|
|
|
|
|
/* config option sets */
|
|
/* these have to know how to do the real work and tweak the proper things */
|
|
static char *
|
|
config_set_int(
|
|
ConfigOptionPtr parm,
|
|
char *val)
|
|
{
|
|
int ival,
|
|
ret;
|
|
|
|
val = config_parse_int(parm, val, &ret, &ival);
|
|
if (ret == -1)
|
|
return val;
|
|
|
|
/* now do individual attribute checks */
|
|
if (!strcmp(parm->parm_name, "port") && !portFromCmdline) {
|
|
ListenPort = ival;
|
|
} else if (!strcmp(parm->parm_name, "client-limit")) {
|
|
AccessSetConnectionLimit(ival);
|
|
} else if (!strcmp(parm->parm_name, "default-point-size")) {
|
|
SetDefaultPointSize(ival);
|
|
}
|
|
return val;
|
|
}
|
|
|
|
static char *
|
|
config_set_bool(
|
|
ConfigOptionPtr parm,
|
|
char *val)
|
|
{
|
|
int
|
|
ret;
|
|
Bool bval;
|
|
|
|
val = config_parse_bool(parm, val, &ret, &bval);
|
|
if (ret == -1)
|
|
return val;
|
|
|
|
/* now do individual attribute checks */
|
|
if (!strcmp(parm->parm_name, "use-syslog")) {
|
|
UseSyslog = bval;
|
|
} else if (!strcmp(parm->parm_name, "clone-self")) {
|
|
CloneSelf = bval;
|
|
}
|
|
return val;
|
|
}
|
|
|
|
static char *
|
|
config_set_file(
|
|
ConfigOptionPtr parm,
|
|
char *val)
|
|
{
|
|
char *start = val,
|
|
t;
|
|
|
|
skip_val(val);
|
|
t = *val;
|
|
*val = '\0';
|
|
if (!strcmp(parm->parm_name, "error-file")) {
|
|
memmove( ErrorFile, start, val - start + 1);
|
|
}
|
|
*val = t;
|
|
return val;
|
|
}
|
|
|
|
static char *
|
|
config_set_catalogue(
|
|
ConfigOptionPtr parm,
|
|
char *val)
|
|
{
|
|
char *b;
|
|
|
|
if (!strcmp(parm->parm_name, "catalogue")) {
|
|
/* stash it for later */
|
|
fsfree((char *) font_catalogue); /* dump any previous one */
|
|
b = font_catalogue = (char *) fsalloc(strlen(val) + 1);
|
|
if (!font_catalogue)
|
|
FatalError("insufficent memory for font catalogue\n");
|
|
while (*val) { /* remove all the gunk */
|
|
if (!isspace(*val)) {
|
|
*b++ = *val;
|
|
}
|
|
val++;
|
|
}
|
|
*b = '\0';
|
|
}
|
|
return val;
|
|
}
|
|
|
|
static char *
|
|
config_set_list(
|
|
ConfigOptionPtr parm,
|
|
char *val)
|
|
{
|
|
char *start = val,
|
|
t;
|
|
|
|
skip_list_val(val);
|
|
t = *val;
|
|
*val = '\0';
|
|
if (!strcmp(parm->parm_name, "alternate-servers")) {
|
|
SetAlternateServers(start);
|
|
}
|
|
*val = t;
|
|
return val;
|
|
}
|
|
|
|
static char *
|
|
config_set_ignored_transports(
|
|
ConfigOptionPtr parm,
|
|
char *val)
|
|
{
|
|
char *start = val,
|
|
t;
|
|
|
|
skip_list_val(val);
|
|
t = *val;
|
|
*val = '\0';
|
|
_FontTransNoListen(start);
|
|
*val = t;
|
|
return val;
|
|
}
|
|
|
|
static char *
|
|
config_set_glyph_caching_mode(
|
|
ConfigOptionPtr parm,
|
|
char *val)
|
|
{
|
|
char *start = val,
|
|
t;
|
|
|
|
skip_list_val(val);
|
|
t = *val;
|
|
*val = '\0';
|
|
if (!strcmp(parm->parm_name, "deferglyphs")) {
|
|
ParseGlyphCachingMode(start);
|
|
}
|
|
*val = t;
|
|
return val;
|
|
}
|
|
|
|
static char *
|
|
config_set_resolutions(
|
|
ConfigOptionPtr parm,
|
|
char *val)
|
|
{
|
|
char *start = val,
|
|
t;
|
|
int err;
|
|
|
|
skip_list_val(val);
|
|
t = *val;
|
|
*val = '\0';
|
|
if (!strcmp(parm->parm_name, "default-resolutions")) {
|
|
err = SetDefaultResolutions(start);
|
|
if (err != FSSuccess) {
|
|
FatalError("bogus resolution list \"%s\"\n", start);
|
|
}
|
|
}
|
|
*val = t;
|
|
return val;
|
|
}
|
|
|
|
|
|
static char *
|
|
config_parse_endian(
|
|
ConfigOptionPtr parm,
|
|
char *c,
|
|
int *ret,
|
|
int *pval)
|
|
{
|
|
static struct nameVal endian_val[] = {
|
|
{ "lsb", LSBFirst },
|
|
{ "little", LSBFirst },
|
|
{ "lsbfirst", LSBFirst },
|
|
{ "msb", MSBFirst },
|
|
{ "big", MSBFirst },
|
|
{ "msbfirst", MSBFirst },
|
|
{ (char *) 0, 0 },
|
|
};
|
|
return config_parse_nameVal (parm, c, ret, pval, endian_val);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static char *
|
|
config_set_snf_format (
|
|
ConfigOptionPtr parm,
|
|
char *val)
|
|
{
|
|
int bit, byte, glyph, scan;
|
|
int ret;
|
|
|
|
val = config_parse_endian (parm, val, &ret, &bit);
|
|
if (ret == -1)
|
|
return val;
|
|
skip_whitespace (val);
|
|
val = config_parse_endian (parm, val, &ret, &byte);
|
|
if (ret == -1)
|
|
return val;
|
|
skip_whitespace (val);
|
|
val = config_parse_int (parm, val, &ret, &glyph);
|
|
if (ret == -1)
|
|
return val;
|
|
skip_whitespace (val);
|
|
val = config_parse_int (parm, val, &ret, &scan);
|
|
if (ret == -1)
|
|
return val;
|
|
SnfSetFormat (bit, byte, glyph, scan);
|
|
return val;
|
|
}
|