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xenocara/app/xrdb/xrdb.c
matthieu 94e8a384a5 Update to xrdb 1.0.9. 
Includes a fix for CVE-2011-0465, to which OpenBSD is not vulnerable, since
dhclient will reject any hostname option containing invalid characters like
$ or `
2011-04-05 18:59:49 +00:00

1401 lines
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/*
* xrdb - X resource manager database utility
*
*/
/*
* COPYRIGHT 1987, 1991
* DIGITAL EQUIPMENT CORPORATION
* MAYNARD, MASSACHUSETTS
* MASSACHUSETTS INSTITUTE OF TECHNOLOGY
* CAMBRIDGE, MASSACHUSETTS
* ALL RIGHTS RESERVED.
*
* THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT NOTICE AND
* SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL EQUIPMENT CORPORATION.
* DIGITAL MAKES NO REPRESENTATIONS ABOUT THE SUITABILITY OF THIS SOFTWARE FOR
* ANY PURPOSE. IT IS SUPPLIED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY.
*
* IF THE SOFTWARE IS MODIFIED IN A MANNER CREATING DERIVATIVE COPYRIGHT RIGHTS,
* APPROPRIATE LEGENDS MAY BE PLACED ON THE DERIVATIVE WORK IN ADDITION TO THAT
* SET FORTH ABOVE.
*
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted, 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 name of Digital Equipment Corporation not be
* used in advertising or publicity pertaining to distribution of the software
* without specific, written prior permission.
*/
/*
* this program is used to load, or dump the resource manager database
* in the server.
*
* Original Author: Jim Gettys, August 28, 1987
* Extensively Modified: Phil Karlton, January 5, 1987
* Modified a Bunch More: Bob Scheifler, February, 1991
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/Xos.h>
#include <X11/Xmu/SysUtil.h>
#include <stdio.h>
#include <ctype.h>
#include <errno.h>
#include <stdlib.h>
#include <stdarg.h>
#ifdef NEED_SYS_PARAM_H
# include <sys/param.h> /* defines MAXHOSTNAMELEN on BSD & Linux */
#endif
#ifdef NEED_NETDB_H
# include <netdb.h> /* defines MAXHOSTNAMELEN on Solaris */
#endif
#define SCREEN_RESOURCES "SCREEN_RESOURCES"
#ifndef CPP
#ifdef __UNIXOS2__
/* expected to be in path */
#define CPP "cpp"
#else
#define CPP "/usr/lib/cpp"
#endif /* __UNIXOS2__ */
#endif /* CPP */
#define INIT_BUFFER_SIZE 10000
#define INIT_ENTRY_SIZE 500
#define RALL 0
#define RGLOBAL 1
#define RSCREEN 2
#define RSCREENS 3
#define OPSYMBOLS 0
#define OPQUERY 1
#define OPREMOVE 2
#define OPEDIT 3
#define OPLOAD 4
#define OPMERGE 5
#define OPOVERRIDE 6
#define RESOURCE_PROPERTY_NAME "RESOURCE_MANAGER"
#define BACKUP_SUFFIX ".bak" /* for editting */
typedef struct _Entry {
char *tag, *value;
int lineno;
Bool usable;
} Entry;
typedef struct _Buffer {
char *buff;
int room, used;
} Buffer;
typedef struct _Entries {
Entry *entry;
int room, used;
} Entries;
/* dynamically allocated strings */
#define CHUNK_SIZE 4096
typedef struct _String {
char *val;
int room, used;
} String;
static char *ProgramName;
static Bool quiet = False;
static char tmpname[32];
static char *filename = NULL;
#ifdef PATHETICCPP
static Bool need_real_defines = False;
static char tmpname2[32];
#ifdef WIN32
static char tmpname3[32];
#endif
#endif
static int oper = OPLOAD;
static char *editFile = NULL;
static const char *cpp_program = NULL;
static const char* const cpp_locations[] = { CPP };
static char *backup_suffix = BACKUP_SUFFIX;
static Bool dont_execute = False;
static String defines;
static int defines_base;
#define MAX_CMD_DEFINES 512
static char *cmd_defines[MAX_CMD_DEFINES];
static int num_cmd_defines = 0;
static String includes;
static Display *dpy;
static Buffer buffer;
static Entries newDB;
static void fatal(char *, ...);
static void addstring ( String *arg, const char *s );
static void addescapedstring ( String *arg, const char *s );
static void addtokstring ( String *arg, const char *s );
static void FormatEntries ( Buffer *buffer, Entries *entries );
static void StoreProperty ( Display *dpy, Window root, Atom res_prop );
static void Process ( int scrno, Bool doScreen, Bool execute );
static void ShuffleEntries ( Entries *db, Entries *dbs, int num );
static void ReProcess ( int scrno, Bool doScreen );
#ifndef HAVE_ASPRINTF
/* sprintf variant found in newer libc's which allocates string to print to */
static int _X_ATTRIBUTE_PRINTF(2,3)
asprintf(char ** ret, const char *format, ...)
{
char buf[256];
int len;
va_list ap;
va_start(ap, format);
len = vsnprintf(buf, sizeof(buf), format, ap);
va_end(ap);
if (len < 0)
return -1;
if (len < sizeof(buf))
{
*ret = strdup(buf);
}
else
{
*ret = malloc(len + 1); /* snprintf doesn't count trailing '\0' */
if (*ret != NULL)
{
va_start(ap, format);
len = vsnprintf(*ret, len + 1, format, ap);
va_end(ap);
if (len < 0) {
free(*ret);
*ret = NULL;
}
}
}
if (*ret == NULL)
return -1;
return len;
}
#endif /* HAVE_ASPRINTF */
static void
InitBuffer(Buffer *b)
{
b->room = INIT_BUFFER_SIZE;
b->used = 0;
b->buff = (char *)malloc(INIT_BUFFER_SIZE*sizeof(char));
}
#ifdef notyet
static void
FreeBuffer(Buffer *b)
{
free(b->buff);
}
#endif
static void
AppendToBuffer(Buffer *b, char *str, int len)
{
while (b->used + len > b->room) {
b->buff = (char *)realloc(b->buff, 2*b->room*(sizeof(char)));
b->room *= 2;
}
strncpy(b->buff + b->used, str, len);
b->used += len;
}
static void
InitEntries(Entries *e)
{
e->room = INIT_ENTRY_SIZE;
e->used = 0;
e->entry = (Entry *)malloc(INIT_ENTRY_SIZE*sizeof(Entry));
}
static void
FreeEntries(Entries *e)
{
register int i;
for (i = 0; i < e->used; i++) {
if (e->entry[i].usable) {
free(e->entry[i].tag);
free(e->entry[i].value);
}
}
free((char *)e->entry);
}
static void
AddEntry(Entries *e, Entry *entry)
{
register int n;
for (n = 0; n < e->used; n++) {
if (!strcmp(e->entry[n].tag, entry->tag)) {
/* overwrite old entry */
if (e->entry[n].lineno && !quiet) {
fprintf (stderr,
"%s: \"%s\" on line %d overrides entry on line %d\n",
ProgramName, entry->tag, entry->lineno,
e->entry[n].lineno);
}
free(e->entry[n].tag);
free(e->entry[n].value);
entry->usable = True;
e->entry[n] = *entry;
return; /* ok to leave, now there's only one of each tag in db */
}
}
if (e->used == e->room) {
e->entry = (Entry *)realloc((char *)e->entry,
2*e->room*(sizeof(Entry)));
e->room *= 2;
}
entry->usable = True;
e->entry[e->used++] = *entry;
}
static int
CompareEntries(const void *e1, const void *e2)
{
return strcmp(((Entry *)e1)->tag, ((Entry *)e2)->tag);
}
static void
AppendEntryToBuffer(Buffer *buffer, Entry *entry)
{
AppendToBuffer(buffer, entry->tag, strlen(entry->tag));
AppendToBuffer(buffer, ":\t", 2);
AppendToBuffer(buffer, entry->value, strlen(entry->value));
AppendToBuffer(buffer, "\n", 1);
}
/*
* Return the position of the first unescaped occurrence of dest in string.
* If lines is non-null, return the number of newlines skipped over.
*/
static char *
FindFirst(char *string, char dest, int *lines)
{
if (lines)
*lines = 0;
for (;;) {
if (*string == '\0')
return NULL;
if (*string == '\\') {
if (*++string == '\0')
return NULL;
} else if (*string == dest)
return string;
if (*string == '\n' && lines)
(*lines)++;
string++;
}
}
static void
GetEntries(Entries *entries, Buffer *buff, int bequiet)
{
register char *line, *colon, *temp, *str;
Entry entry;
register int length;
int lineno = 0;
int lines_skipped;
str = buff->buff;
if (!str) return;
for ( ; str < buff->buff + buff->used;
str = line + 1, lineno += lines_skipped) {
line = FindFirst(str, '\n', &lines_skipped);
lineno++;
if (!line)
line = buff->buff + buff->used;
if (*str == '!')
continue;
if (*str == '\n')
continue;
if (!bequiet && *str == '#') {
int dummy;
if (sscanf (str, "# %d", &dummy) == 1 ||
sscanf (str, "# line %d", &dummy) == 1)
lineno = dummy - 1;
continue;
}
for (temp = str;
*temp && *temp != '\n' && isascii(*temp) && isspace(*temp);
temp++) ;
if (!*temp || *temp == '\n') continue;
colon = FindFirst(str, ':', NULL);
if (!colon || colon > line) {
if (!bequiet && !quiet)
fprintf (stderr,
"%s: colon missing on line %d, ignoring line\n",
ProgramName, lineno);
continue;
}
/* strip leading and trailing blanks from name and store result */
while (*str == ' ' || *str == '\t')
str++;
length = colon - str;
while (length && (str[length-1] == ' ' || str[length-1] == '\t'))
length--;
temp = (char *)malloc(length + 1);
strncpy(temp, str, length);
temp[length] = '\0';
entry.tag = temp;
/* strip leading and trailing blanks from value and store result */
colon++;
while (*colon == ' ' || *colon == '\t')
colon++;
length = line - colon;
temp = (char *)malloc(length + 1);
strncpy(temp, colon, length);
temp[length] = '\0';
entry.value = temp;
entry.lineno = bequiet ? 0 : lineno;
AddEntry(entries, &entry);
}
}
static void
GetEntriesString(Entries *entries, char *str)
{
Buffer buff;
if (str && *str) {
buff.buff = str;
buff.used = strlen(str);
GetEntries(entries, &buff, 1);
}
}
static void
ReadFile(Buffer *buffer, FILE *input)
{
char buf[BUFSIZ + 1];
register int bytes;
buffer->used = 0;
while (!feof(input) && (bytes = fread(buf, 1, BUFSIZ, input)) > 0) {
#ifdef WIN32
char *p;
buf[bytes] = '\0';
for (p = buf; p = strchr(p, '\r'); ) {
if (p[-1] == '\\' && p[1] == '\n') {
bytes -= 3;
strcpy(p - 1, p + 2);
}
}
#endif
AppendToBuffer(buffer, buf, bytes);
}
AppendToBuffer(buffer, "", 1);
}
static void
AddDef(String *buff, char *title, char *value)
{
#ifdef PATHETICCPP
if (need_real_defines) {
addstring(buff, "\n#define ");
addstring(buff, title);
if (value && (value[0] != '\0')) {
addstring(buff, " ");
addstring(buff, value);
}
return;
}
#endif
if (buff->used) {
if (oper == OPSYMBOLS)
addstring(buff, "\n-D");
else
addstring(buff, " -D");
} else
addstring(buff, "-D");
addtokstring(buff, title);
if (value && (value[0] != '\0')) {
addstring(buff, "=");
addescapedstring(buff, value);
}
}
static void
AddSimpleDef(String *buff, char *title)
{
AddDef(buff, title, (char *)NULL);
}
static void
AddDefQ(String *buff, char *title, char *value)
{
#ifdef PATHETICCPP
if (need_real_defines)
AddDef(buff, title, value);
else
#endif
if (value && (value[0] != '\0')) {
AddSimpleDef(buff, title);
addstring(buff, "=\"");
addescapedstring(buff, value);
addstring(buff, "\"");
} else
AddDef(buff, title, NULL);
}
static void
AddNum(String *buff, char *title, int value)
{
char num[20];
snprintf(num, sizeof(num), "%d", value);
AddDef(buff, title, num);
}
static void
AddDefTok(String *buff, char *prefix, char *title)
{
char name[512];
snprintf(name, sizeof(name), "%s%s", prefix, title);
AddSimpleDef(buff, name);
}
static void
AddDefHostname(String *buff, char *title, char *value)
{
char *s;
char name[512];
char c;
strncpy (name, value, sizeof(name)-1);
name[sizeof(name)-1] = '\0';
for (s = name; (c = *s); s++) {
if (!isalpha(c) && !isdigit(c) && c != '_' && c != '.' && c != ':' && c != '-')
*s = '_';
}
AddDef(buff, title, name);
}
static void
AddUndef(String *buff, char *title)
{
#ifdef PATHETICCPP
if (need_real_defines) {
addstring(buff, "\n#undef ");
addstring(buff, title);
return;
}
#endif
if (buff->used) {
if (oper == OPSYMBOLS)
addstring(buff, "\n-U");
else
addstring(buff, " -U");
} else
addstring(buff, "-U");
addtokstring(buff, title);
}
static void
DoCmdDefines(String *buff)
{
int i;
char *arg, *val;
for (i = 0; i < num_cmd_defines; i++) {
arg = cmd_defines[i];
if (arg[1] == 'D') {
val = strchr(arg, '=');
if (val) {
*val = '\0';
AddDefQ(buff, arg + 2, val + 1);
*val = '=';
} else
AddSimpleDef(buff, arg + 2);
} else
AddUndef(buff, arg + 2);
}
}
static int
Resolution(int pixels, int mm)
{
if (mm == 0)
return 0;
else
return ((pixels * 100000 / mm) + 50) / 100;
}
static void
DoDisplayDefines(Display *display, String *defs, char *host)
{
#ifndef MAXHOSTNAMELEN
#define MAXHOSTNAMELEN 255
#endif
char client[MAXHOSTNAMELEN], server[MAXHOSTNAMELEN], *colon;
char **extnames;
int n;
XmuGetHostname(client, MAXHOSTNAMELEN);
strncpy(server, XDisplayName(host), sizeof(server));
server[sizeof(server) - 1] = '\0';
/* search for final colon to skip over any embedded colons in IPv6
numeric address forms */
colon = strrchr(server, ':');
n = 0;
if (colon) {
/* remove extra colon if there are exactly two, since it indicates
DECnet. Three colons is an IPv6 address ending in :: though. */
if ((colon > server) && (*(colon-1) == ':') &&
( ((colon - 1) == server) || (*(colon-2) != ':') ) ) {
*(colon-1) = ':';
}
*colon++ = '\0';
sscanf(colon, "%d", &n);
}
if (!*server || !strcmp(server, "unix") || !strcmp(server, "localhost"))
strcpy(server, client);
AddDefHostname(defs, "HOST", server); /* R3 compatibility */
AddDefHostname(defs, "SERVERHOST", server);
AddDefTok(defs, "SRVR_", server);
AddNum(defs, "DISPLAY_NUM", n);
AddDefHostname(defs, "CLIENTHOST", client);
AddDefTok(defs, "CLNT_", client);
AddNum(defs, "VERSION", ProtocolVersion(display));
AddNum(defs, "REVISION", ProtocolRevision(display));
AddDefQ(defs, "VENDOR", ServerVendor(display));
AddDefTok(defs, "VNDR_", ServerVendor(display));
AddNum(defs, "RELEASE", VendorRelease(display));
AddNum(defs, "NUM_SCREENS", ScreenCount(display));
extnames = XListExtensions(display, &n);
while (--n >= 0)
AddDefTok(defs, "EXT_", extnames[n]);
XFreeExtensionList(extnames);
}
static char *ClassNames[] = {
"StaticGray",
"GrayScale",
"StaticColor",
"PseudoColor",
"TrueColor",
"DirectColor"
};
static void
DoScreenDefines(Display *display, int scrno, String *defs)
{
Screen *screen;
Visual *visual;
XVisualInfo vinfo, *vinfos;
int nv, i, j;
char name[50];
screen = ScreenOfDisplay(display, scrno);
visual = DefaultVisualOfScreen(screen);
vinfo.screen = scrno;
vinfos = XGetVisualInfo(display, VisualScreenMask, &vinfo, &nv);
AddNum(defs, "SCREEN_NUM", scrno);
AddNum(defs, "WIDTH", screen->width);
AddNum(defs, "HEIGHT", screen->height);
AddNum(defs, "X_RESOLUTION", Resolution(screen->width,screen->mwidth));
AddNum(defs, "Y_RESOLUTION", Resolution(screen->height,screen->mheight));
AddNum(defs, "PLANES", DisplayPlanes(display, scrno));
AddNum(defs, "BITS_PER_RGB", visual->bits_per_rgb);
AddDefQ(defs, "CLASS", ClassNames[visual->class]);
snprintf(name, sizeof(name), "CLASS_%s", ClassNames[visual->class]);
AddNum(defs, name, (int)visual->visualid);
switch(visual->class) {
case StaticColor:
case PseudoColor:
case TrueColor:
case DirectColor:
AddSimpleDef(defs, "COLOR");
break;
}
for (i = 0; i < nv; i++) {
for (j = i; --j >= 0; ) {
if (vinfos[j].class == vinfos[i].class &&
vinfos[j].depth == vinfos[i].depth)
break;
}
if (j < 0) {
snprintf(name, sizeof(name), "CLASS_%s_%d",
ClassNames[vinfos[i].class], vinfos[i].depth);
AddNum(defs, name, (int)vinfos[i].visualid);
}
}
XFree((char *)vinfos);
}
static Entry *
FindEntry(Entries *db, Buffer *b)
{
int i;
register Entry *e;
Entries phoney;
Entry entry;
entry.usable = False;
entry.tag = NULL;
entry.value = NULL;
phoney.used = 0;
phoney.room = 1;
phoney.entry = &entry;
GetEntries(&phoney, b, 1);
if (phoney.used < 1)
return NULL;
for (i = 0; i < db->used; i++) {
e = &db->entry[i];
if (!e->usable)
continue;
if (strcmp(e->tag, entry.tag))
continue;
e->usable = False;
if (strcmp(e->value, entry.value))
return e;
return NULL;
}
return NULL;
}
static void
EditFile(Entries *new, FILE *in, FILE *out)
{
Buffer b;
char buff[BUFSIZ];
register Entry *e;
register char *c;
int i;
InitBuffer(&b);
while (in) {
b.used = 0;
while (1) {
buff[0] ='\0';
if (!fgets(buff, BUFSIZ, in))
goto cleanup;
AppendToBuffer(&b, buff, strlen(buff));
c = &b.buff[b.used - 1];
if ((*(c--) == '\n') && (b.used == 1 || *c != '\\'))
break;
}
if ((e = FindEntry(new, &b)))
fprintf(out, "%s:\t%s\n", e->tag, e->value);
else
fwrite(b.buff, 1, b.used, out);
}
cleanup:
for (i = 0; i < new->used; i++) {
e = &new->entry[i];
if (e->usable)
fprintf(out, "%s:\t%s\n", e->tag, e->value);
}
}
static void
Syntax (void)
{
fprintf (stderr,
"usage: %s [-options ...] [filename]\n\n"
"where options include:\n"
" -display host:dpy display to use\n"
" -all do all resources [default]\n"
" -global do screen-independent resources\n"
" -screen do screen-specific resources for one screen\n"
" -screens do screen-specific resources for all screens\n"
" -n show but don't do changes\n"
" -cpp filename preprocessor to use [%s]\n"
" -nocpp do not use a preprocessor\n"
" -query query resources\n"
" -load load resources from file [default]\n"
" -override add in resources from file\n"
" -merge merge resources from file & sort\n"
" -edit filename edit resources into file\n"
" -backup string backup suffix for -edit [%s]\n"
" -symbols show preprocessor symbols\n"
" -remove remove resources\n"
" -retain avoid server reset (avoid using this)\n"
" -quiet don't warn about duplicates\n"
" -Dname[=value], -Uname, -Idirectory passed to preprocessor\n"
"\n"
"A - or no input filename represents stdin.\n",
ProgramName, CPP, BACKUP_SUFFIX);
exit (1);
}
/*
* The following is a hack until XrmParseCommand is ready. It determines
* whether or not the given string is an abbreviation of the arg.
*/
static Bool
isabbreviation(char *arg, char *s, int minslen)
{
int arglen;
int slen;
/* exact match */
if (!strcmp (arg, s)) return (True);
arglen = strlen (arg);
slen = strlen (s);
/* too long or too short */
if (slen >= arglen || slen < minslen) return (False);
/* abbreviation */
if (strncmp (arg, s, slen) == 0) return (True);
/* bad */
return (False);
}
static void
addstring(String *arg, const char *s)
{
if(arg->used + strlen(s) + 1 >= arg->room) {
if(arg->val)
arg->val = (char *)realloc(arg->val, arg->room + CHUNK_SIZE);
else
arg->val = (char *)malloc(arg->room + CHUNK_SIZE);
if(arg->val == NULL)
fatal("%s: Not enough memory\n", ProgramName);
arg->room += CHUNK_SIZE;
}
if(arg->used)
strcat(arg->val, s);
else
strcpy(arg->val, s);
arg->used += strlen(s);
}
static void
addescapedstring(String *arg, const char *s)
{
char copy[512], *c;
for (c = copy; *s && c < &copy[sizeof(copy)-1]; s++) {
switch (*s) {
case '"': case '\'': case '`':
case '$': case '\\':
*c++ = '_';
break;
default:
*c++ = *s;
}
}
*c = 0;
addstring (arg, copy);
}
static void
addtokstring(String *arg, const char *s)
{
char copy[512], *c;
for (c = copy; *s && c < &copy[sizeof(copy)-1]; s++) {
if (!isalpha(*s) && !isdigit(*s) && *s != '_')
*c++ = '_';
else
*c++ = *s;
}
*c = 0;
addstring (arg, copy);
}
int
main(int argc, char *argv[])
{
int i;
char *displayname = NULL;
int whichResources = RALL;
int retainProp = 0;
FILE *fp = NULL;
Bool need_newline;
ProgramName = argv[0];
defines.room = defines.used = includes.room = includes.used = 0;
/* initialize the includes String struct */
addstring(&includes, "");
/* Pick the default cpp to use. This needs to be done before
* we parse the command line in order to honor -nocpp which sets
* it back to NULL.
*/
if (cpp_program == NULL) {
int number_of_elements
= (sizeof cpp_locations) / (sizeof cpp_locations[0]);
int j;
for (j = 0; j < number_of_elements; j++) {
if (access(cpp_locations[j], X_OK) == 0) {
cpp_program = cpp_locations[j];
break;
}
}
}
/* needs to be replaced with XrmParseCommand */
for (i = 1; i < argc; i++) {
char *arg = argv[i];
if (arg[0] == '-') {
if (arg[1] == '\0') {
filename = NULL;
continue;
} else if (isabbreviation ("-help", arg, 2)) {
Syntax ();
/* doesn't return */
} else if (isabbreviation ("-display", arg, 2)) {
if (++i >= argc) Syntax ();
displayname = argv[i];
continue;
} else if (isabbreviation ("-geometry", arg, 3)) {
if (++i >= argc) Syntax ();
/* ignore geometry */
continue;
} else if (isabbreviation ("-cpp", arg, 2)) {
if (++i >= argc) Syntax ();
cpp_program = argv[i];
continue;
} else if (!strcmp ("-n", arg)) {
dont_execute = True;
continue;
} else if (isabbreviation ("-nocpp", arg, 3)) {
cpp_program = NULL;
continue;
} else if (isabbreviation ("-query", arg, 2)) {
oper = OPQUERY;
continue;
} else if (isabbreviation ("-load", arg, 2)) {
oper = OPLOAD;
continue;
} else if (isabbreviation ("-merge", arg, 2)) {
oper = OPMERGE;
continue;
} else if (isabbreviation ("-override", arg, 2)) {
oper = OPOVERRIDE;
continue;
} else if (isabbreviation ("-symbols", arg, 3)) {
oper = OPSYMBOLS;
continue;
} else if (isabbreviation ("-remove", arg, 4)) {
oper = OPREMOVE;
continue;
} else if (isabbreviation ("-edit", arg, 2)) {
if (++i >= argc) Syntax ();
oper = OPEDIT;
editFile = argv[i];
continue;
} else if (isabbreviation ("-backup", arg, 2)) {
if (++i >= argc) Syntax ();
backup_suffix = argv[i];
continue;
} else if (isabbreviation ("-all", arg, 2)) {
whichResources = RALL;
continue;
} else if (isabbreviation ("-global", arg, 3)) {
whichResources = RGLOBAL;
continue;
} else if (isabbreviation ("-screen", arg, 3)) {
whichResources = RSCREEN;
continue;
} else if (!strcmp ("-screens", arg)) {
whichResources = RSCREENS;
continue;
} else if (isabbreviation ("-retain", arg, 4)) {
retainProp = 1;
continue;
} else if (isabbreviation ("-quiet", arg, 2)) {
quiet = True;
continue;
} else if (arg[1] == 'I') {
addstring(&includes, " ");
addescapedstring(&includes, arg);
continue;
} else if (arg[1] == 'U' || arg[1] == 'D') {
if (num_cmd_defines < MAX_CMD_DEFINES) {
cmd_defines[num_cmd_defines++] = arg;
} else {
fatal("%s: Too many -U/-D arguments\n", ProgramName);
}
continue;
}
Syntax ();
} else if (arg[0] == '=')
continue;
else
filename = arg;
} /* end for */
#ifndef WIN32
while ((i = open("/dev/null", O_RDONLY)) < 3)
; /* make sure later freopen won't clobber things */
(void) close(i);
#endif
/* Open display */
if (!(dpy = XOpenDisplay (displayname)))
fatal("%s: Can't open display '%s'\n", ProgramName,
XDisplayName (displayname));
if (whichResources == RALL && ScreenCount(dpy) == 1)
whichResources = RGLOBAL;
#ifdef PATHETICCPP
if (cpp_program &&
(oper == OPLOAD || oper == OPMERGE || oper == OPOVERRIDE)) {
need_real_defines = True;
#ifdef WIN32
strcpy(tmpname2, "xrdbD_XXXXXX");
strcpy(tmpname3, "\\temp\\xrdbD_XXXXXX");
#else
#ifdef __UNIXOS2__
{ char *tmpdir=getenv("TMP");
if (!tmpdir) tmpdir="/";
sprintf(tmpname2, "%s/xrdbD_XXXXXX",tmpdir);
}
#else
strcpy(tmpname2, "/tmp/xrdbD_XXXXXX");
#endif
#endif
(void) mktemp(tmpname2);
}
#endif
if (!filename &&
#ifdef PATHETICCPP
need_real_defines
#else
(oper == OPLOAD || oper == OPMERGE || oper == OPOVERRIDE) &&
(whichResources == RALL || whichResources == RSCREENS)
#endif
) {
char inputbuf[1024];
#ifdef WIN32
strcpy(tmpname, "\\temp\\xrdb_XXXXXX");
#else
#ifdef __UNIXOS2__
{ char *tmpdir=getenv("TMP");
if (!tmpdir) tmpdir="/";
sprintf(tmpname, "%s/xrdb_XXXXXX",tmpdir);
}
#else
strcpy(tmpname, "/tmp/xrdb_XXXXXX");
#endif
#endif
#ifndef HAVE_MKSTEMP
(void) mktemp(tmpname);
filename = tmpname;
fp = fopen(filename, "w");
#else
{
int fd = mkstemp(tmpname);
filename = tmpname;
fp = fdopen(fd, "w");
}
#endif /* MKSTEMP */
if (!fp)
fatal("%s: Failed to open temp file: %s\n", ProgramName,
filename);
while (fgets(inputbuf, sizeof(inputbuf), stdin) != NULL)
fputs(inputbuf, fp);
fclose(fp);
}
DoDisplayDefines(dpy, &defines, displayname);
defines_base = defines.used;
need_newline = (oper == OPQUERY || oper == OPSYMBOLS ||
(dont_execute && oper != OPREMOVE));
InitBuffer(&buffer);
if (whichResources == RGLOBAL)
Process(DefaultScreen(dpy), False, True);
else if (whichResources == RSCREEN)
Process(DefaultScreen(dpy), True, True);
else if (whichResources == RSCREENS ||
(oper != OPLOAD && oper != OPMERGE && oper != OPOVERRIDE)) {
if (whichResources == RALL && oper != OPSYMBOLS) {
if (need_newline)
printf("! screen-independent resources\n");
Process(0, False, True);
if (need_newline)
printf("\n");
}
for (i = 0; i < ScreenCount(dpy); i++) {
if (need_newline) {
if (oper == OPSYMBOLS)
printf("# screen %d symbols\n", i);
else {
printf("! screen %d resources\n", i);
printf("#if SCREEN_NUM == %d\n", i);
}
}
Process(i, True, True);
if (need_newline) {
if (oper != OPSYMBOLS)
printf("#endif\n");
if (i+1 != ScreenCount(dpy))
printf("\n");
}
}
}
else {
Entries *dbs;
dbs = (Entries *)malloc(ScreenCount(dpy) * sizeof(Entries));
for (i = 0; i < ScreenCount(dpy); i++) {
Process(i, True, False);
dbs[i] = newDB;
}
InitEntries(&newDB);
if (oper == OPMERGE || oper == OPOVERRIDE)
GetEntriesString(&newDB, XResourceManagerString(dpy));
ShuffleEntries(&newDB, dbs, ScreenCount(dpy));
if (need_newline)
printf("! screen-independent resources\n");
ReProcess(0, False);
if (need_newline)
printf("\n");
for (i = 0; i < ScreenCount(dpy); i++) {
newDB = dbs[i];
if (need_newline) {
printf("! screen %d resources\n", i);
printf("#if SCREEN_NUM == %d\n", i);
}
ReProcess(i, True);
if (need_newline) {
printf("#endif\n");
if (i+1 != ScreenCount(dpy))
printf("\n");
}
}
}
if (fp)
unlink(filename);
if (retainProp)
XSetCloseDownMode(dpy, RetainPermanent);
XCloseDisplay(dpy);
exit (0);
}
static void
FormatEntries(Buffer *buffer, Entries *entries)
{
register int i;
buffer->used = 0;
if (!entries->used)
return;
if (oper == OPMERGE)
qsort(entries->entry, entries->used, sizeof(Entry),
CompareEntries);
for (i = 0; i < entries->used; i++) {
if (entries->entry[i].usable)
AppendEntryToBuffer(buffer, &entries->entry[i]);
}
}
static void
StoreProperty(Display *dpy, Window root, Atom res_prop)
{
int len = buffer.used;
int mode = PropModeReplace;
unsigned char *buf = (unsigned char *)buffer.buff;
int max = (XMaxRequestSize(dpy) << 2) - 28;
if (len > max) {
XGrabServer(dpy);
do {
XChangeProperty(dpy, root, res_prop, XA_STRING, 8, mode, buf, max);
buf += max;
len -= max;
mode = PropModeAppend;
} while (len > max);
}
XChangeProperty(dpy, root, res_prop, XA_STRING, 8, mode, buf, len);
if (mode != PropModeReplace)
XUngrabServer(dpy);
}
static void
Process(int scrno, Bool doScreen, Bool execute)
{
char *xdefs;
Window root;
Atom res_prop;
FILE *input, *output;
char *cmd;
defines.val[defines_base] = '\0';
defines.used = defines_base;
buffer.used = 0;
InitEntries(&newDB);
DoScreenDefines(dpy, scrno, &defines);
DoCmdDefines(&defines);
if (doScreen) {
xdefs = XScreenResourceString (ScreenOfDisplay(dpy, scrno));
root = RootWindow(dpy, scrno);
res_prop = XInternAtom(dpy, SCREEN_RESOURCES, False);
} else {
xdefs = XResourceManagerString (dpy);
root = RootWindow(dpy, 0);
res_prop = XA_RESOURCE_MANAGER;
}
if (oper == OPSYMBOLS) {
printf ("%s\n", defines.val);
} else if (oper == OPQUERY) {
if (xdefs)
printf ("%s", xdefs); /* fputs broken in SunOS 4.0 */
} else if (oper == OPREMOVE) {
if (xdefs)
XDeleteProperty(dpy, root, res_prop);
} else if (oper == OPEDIT) {
char template[100], old[100];
input = fopen(editFile, "r");
snprintf(template, sizeof(template), "%sXXXXXX", editFile);
#ifndef HAVE_MKSTEMP
(void) mktemp(template);
output = fopen(template, "w");
#else
{
int fd = mkstemp(template);
output = fdopen(fd, "w");
}
#endif
if (!output)
fatal("%s: can't open temporary file '%s'\n", ProgramName, template);
GetEntriesString(&newDB, xdefs);
EditFile(&newDB, input, output);
if (input)
fclose(input);
fclose(output);
snprintf(old, sizeof(old), "%s%s", editFile, backup_suffix);
if (dont_execute) { /* then write to standard out */
char buf[BUFSIZ];
int n;
output = fopen (template, "r");
if (output) {
while ((n = fread (buf, 1, sizeof buf, output)) > 0) {
fwrite (buf, 1, n, stdout);
}
fclose (output);
}
unlink (template);
} else {
rename (editFile, old);
if (rename (template, editFile))
fatal("%s: can't rename file '%s' to '%s'\n", ProgramName,
template, editFile);
}
} else {
if (oper == OPMERGE || oper == OPOVERRIDE)
GetEntriesString(&newDB, xdefs);
#ifdef PATHETICCPP
if (need_real_defines) {
#ifdef WIN32
if (!(input = fopen(tmpname2, "w")))
fatal("%s: can't open file '%s'\n", ProgramName, tmpname2);
fputs(defines.val, input);
fprintf(input, "\n#include \"%s\"\n", filename);
fclose(input);
(void) mktemp(tmpname3);
if (asprintf(&cmd, "%s -P%s %s > %s", cpp_program, includes.val,
tmpname2, tmpname3) == -1)
fatal("%s: Out of memory\n", ProgramName);
if (system(cmd) < 0)
fatal("%s: cannot run '%s'\n", ProgramName, cmd);
free(cmd);
if (!(input = fopen(tmpname3, "r")))
fatal("%s: can't open file '%s'\n", ProgramName, tmpname3);
#else
if (!freopen(tmpname2, "w+", stdin))
fatal("%s: can't open file '%s'\n", ProgramName, tmpname2);
fputs(defines.val, stdin);
fprintf(stdin, "\n#include \"%s\"\n", filename);
fflush(stdin);
fseek(stdin, 0, 0);
if (asprintf(&cmd, "%s -P%s", cpp_program, includes.val) == -1)
fatal("%s: Out of memory\n", ProgramName);
if (!(input = popen(cmd, "r")))
fatal("%s: cannot run '%s'\n", ProgramName, cmd);
free(cmd);
#endif
} else {
#endif
if (filename) {
if (!freopen (filename, "r", stdin))
fatal("%s: can't open file '%s'\n", ProgramName, filename);
}
if (cpp_program) {
#ifdef WIN32
(void) mktemp(tmpname3);
if (asprintf(&cmd, "%s -P%s %s %s > %s", cpp_program,
includes.val, defines.val,
filename ? filename : "", tmpname3) == -1)
fatal("%s: Out of memory\n", ProgramName);
if (system(cmd) < 0)
fatal("%s: cannot run '%s'\n", ProgramName, cmd);
free(cmd);
if (!(input = fopen(tmpname3, "r")))
fatal("%s: can't open file '%s'\n", ProgramName, tmpname3);
#else
if (asprintf(&cmd, "%s -P%s %s %s", cpp_program,
includes.val, defines.val,
filename ? filename : "") == -1)
fatal("%s: Out of memory\n", ProgramName);
if (!(input = popen(cmd, "r")))
fatal("%s: cannot run '%s'\n", ProgramName, cmd);
free(cmd);
#endif
} else {
input = stdin;
}
#ifdef PATHETICCPP
}
#endif
ReadFile(&buffer, input);
if (cpp_program) {
#ifdef WIN32
fclose(input);
#else
pclose(input);
#endif
}
#ifdef PATHETICCPP
if (need_real_defines) {
unlink(tmpname2);
#ifdef WIN32
if (tmpname3[strlen(tmpname3) - 1] != 'X')
unlink(tmpname3);
#endif
}
#endif
GetEntries(&newDB, &buffer, 0);
if (execute) {
FormatEntries(&buffer, &newDB);
if (dont_execute) {
if (buffer.used > 0) {
fwrite (buffer.buff, 1, buffer.used, stdout);
if (buffer.buff[buffer.used - 1] != '\n') putchar ('\n');
}
} else if (buffer.used > 1 || !doScreen)
StoreProperty (dpy, root, res_prop);
else
XDeleteProperty (dpy, root, res_prop);
}
}
if (execute)
FreeEntries(&newDB);
if (doScreen && xdefs)
XFree(xdefs);
}
static void
ShuffleEntries(Entries *db, Entries *dbs, int num)
{
int *hits;
register int i, j, k;
Entries cur, cmp;
char *curtag, *curvalue;
hits = (int *)malloc(num * sizeof(int));
cur = dbs[0];
for (i = 0; i < cur.used; i++) {
curtag = cur.entry[i].tag;
curvalue = cur.entry[i].value;
for (j = 1; j < num; j++) {
cmp = dbs[j];
for (k = 0; k < cmp.used; k++) {
if (cmp.entry[k].usable &&
!strcmp(curtag, cmp.entry[k].tag) &&
!strcmp(curvalue, cmp.entry[k].value))
{
hits[j] = k;
break;
}
}
if (k == cmp.used)
break;
}
if (j == num) {
AddEntry(db, &cur.entry[i]);
hits[0] = i;
for (j = 0; j < num; j++)
dbs[j].entry[hits[j]].usable = False;
}
}
free((char *)hits);
}
static void
ReProcess(int scrno, Bool doScreen)
{
Window root;
Atom res_prop;
FormatEntries(&buffer, &newDB);
if (doScreen) {
root = RootWindow(dpy, scrno);
res_prop = XInternAtom(dpy, SCREEN_RESOURCES, False);
} else {
root = RootWindow(dpy, 0);
res_prop = XA_RESOURCE_MANAGER;
}
if (dont_execute) {
if (buffer.used > 0) {
fwrite (buffer.buff, 1, buffer.used, stdout);
if (buffer.buff[buffer.used - 1] != '\n') putchar ('\n');
}
} else {
if (buffer.used > 1 || !doScreen)
StoreProperty (dpy, root, res_prop);
else
XDeleteProperty (dpy, root, res_prop);
}
FreeEntries(&newDB);
}
static void
fatal(char *msg, ...)
{
va_list args;
if (errno != 0)
perror(ProgramName);
va_start(args, msg);
vfprintf(stderr, msg, args);
va_end(args);
exit(1);
}
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