#include <stdio.h>
#include <ctype.h>
#include <string.h>
+#include <time.h>
#include <sys/stat.h>
#include <sys/time.h>
static void get_screenhacks (saver_preferences *p);
static char *format_command (const char *cmd, Bool wrap_p);
-
+static void merge_system_screenhacks (saver_preferences *p,
+ screenhack **system_list, int count);
static char *
chase_symlinks (const char *file)
}
+static Bool
+i_am_a_nobody (uid_t uid)
+{
+ struct passwd *p;
+
+ p = getpwnam ("nobody");
+ if (! p) p = getpwnam ("noaccess");
+ if (! p) p = getpwnam ("daemon");
+
+ if (! p) /* There is no nobody? */
+ return False;
+
+ return (uid == p->pw_uid);
+}
+
+
const char *
init_file_name (void)
{
if (!file)
{
- struct passwd *p = getpwuid (getuid ());
+ uid_t uid = getuid ();
+ struct passwd *p = getpwuid (uid);
+
+ if (i_am_a_nobody (uid))
+ /* If we're running as nobody, then use root's .xscreensaver file
+ (since ~root/.xscreensaver and ~nobody/.xscreensaver are likely
+ to be different -- if we didn't do this, then xscreensaver-demo
+ would appear to have no effect when the luser is running as root.)
+ */
+ uid = 0;
+
+ p = getpwuid (uid);
if (!p || !p->pw_name || !*p->pw_name)
{
return 0;
}
+static int
+get_byte_resource (char *name, char *class)
+{
+ char *s = get_string_resource (name, class);
+ char *s2 = s;
+ int n = 0;
+ if (!s) return 0;
+
+ while (isspace(*s2)) s2++;
+ while (*s2 >= '0' && *s2 <= '9')
+ {
+ n = (n * 10) + (*s2 - '0');
+ s2++;
+ }
+ while (isspace(*s2)) s2++;
+ if (*s2 == 'k' || *s2 == 'K') n <<= 10;
+ else if (*s2 == 'm' || *s2 == 'M') n <<= 20;
+ else if (*s2 == 'g' || *s2 == 'G') n <<= 30;
+ else if (*s2)
+ {
+ LOSE:
+ fprintf (stderr, "%s: %s must be a number of bytes, not \"%s\".\n",
+ progname, name, s);
+ return 0;
+ }
+ s2++;
+ if (*s2 == 'b' || *s2 == 'B') s2++;
+ while (isspace(*s2)) s2++;
+ if (*s2) goto LOSE;
+
+ return n;
+}
+
static const char * const prefs[] = {
"timeout",
"installColormap",
"verbose",
"timestamp",
- "splash", /* not saved -- same as "splashDuration: 0" */
+ "splash",
"splashDuration",
"demoCommand",
"prefsCommand",
"helpURL",
"loadURL",
"nice",
+ "memoryLimit",
"fade",
"unfade",
"fadeSeconds",
"captureStderr",
"captureStdout", /* not saved -- obsolete */
"font",
+ "dpmsEnabled",
+ "dpmsStandby",
+ "dpmsSuspend",
+ "dpmsOff",
+ "grabDesktopImages",
+ "grabVideoFrames",
+ "chooseRandomImages",
+ "imageDirectory",
"",
"programs",
"",
fprintf(out, "%s:", key);
col = strlen(key) + 1;
+ if (strlen(key) > 14)
+ col = tab_to (out, col, 20);
+
while (1)
{
if (!programs_p)
*/
char *visual_name;
char *programs;
- Bool capture_stderr_p;
Bool overlay_stderr_p;
char *stderr_font;
FILE *out;
/* Kludge, since these aren't in the saver_preferences struct... */
visual_name = get_string_resource ("visualID", "VisualID");
programs = 0;
- capture_stderr_p = get_boolean_resource ("captureStderr", "Boolean");
overlay_stderr_p = get_boolean_resource ("overlayStderr", "Boolean");
stderr_font = get_string_resource ("font", "Font");
{
char buf[255];
const char *pr = prefs[j];
- enum pref_type { pref_str, pref_int, pref_bool, pref_time
+ enum pref_type { pref_str, pref_int, pref_bool, pref_byte, pref_time
} type = pref_str;
const char *s = 0;
int i = 0;
CHECK("installColormap") type = pref_bool, b = p->install_cmap_p;
CHECK("verbose") type = pref_bool, b = p->verbose_p;
CHECK("timestamp") type = pref_bool, b = p->timestamp_p;
- CHECK("splash") continue; /* don't save */
+ CHECK("splash") type = pref_bool, b = p->splash_p;
CHECK("splashDuration") type = pref_time, t = p->splash_duration;
CHECK("demoCommand") type = pref_str, s = p->demo_command;
CHECK("prefsCommand") type = pref_str, s = p->prefs_command;
CHECK("helpURL") type = pref_str, s = p->help_url;
CHECK("loadURL") type = pref_str, s = p->load_url_command;
CHECK("nice") type = pref_int, i = p->nice_inferior;
+ CHECK("memoryLimit") type = pref_byte, i = p->inferior_memory_limit;
CHECK("fade") type = pref_bool, b = p->fade_p;
CHECK("unfade") type = pref_bool, b = p->unfade_p;
CHECK("fadeSeconds") type = pref_time, t = p->fade_seconds;
CHECK("fadeTicks") type = pref_int, i = p->fade_ticks;
- CHECK("captureStderr") type = pref_bool, b = capture_stderr_p;
+ CHECK("captureStderr") type = pref_bool, b = p->capture_stderr_p;
CHECK("captureStdout") continue; /* don't save */
CHECK("font") type = pref_str, s = stderr_font;
+
+ CHECK("dpmsEnabled") type = pref_bool, b = p->dpms_enabled_p;
+ CHECK("dpmsStandby") type = pref_time, t = p->dpms_standby;
+ CHECK("dpmsSuspend") type = pref_time, t = p->dpms_suspend;
+ CHECK("dpmsOff") type = pref_time, t = p->dpms_off;
+
+ CHECK("grabDesktopImages") type =pref_bool, b = p->grab_desktop_p;
+ CHECK("grabVideoFrames") type =pref_bool, b = p->grab_video_p;
+ CHECK("chooseRandomImages")type =pref_bool, b = p->random_image_p;
+ CHECK("imageDirectory") type =pref_str, s = p->image_directory;
+
CHECK("programs") type = pref_str, s = programs;
CHECK("pointerPollTime") type = pref_time, t = p->pointer_timeout;
CHECK("windowCreationTimeout")type=pref_time,t= p->notice_events_timeout;
s = buf;
}
break;
+ case pref_byte:
+ {
+ if (i >= (1<<30) && i == ((i >> 30) << 30))
+ sprintf(buf, "%dG", i >> 30);
+ else if (i >= (1<<20) && i == ((i >> 20) << 20))
+ sprintf(buf, "%dM", i >> 20);
+ else if (i >= (1<<10) && i == ((i >> 10) << 10))
+ sprintf(buf, "%dK", i >> 10);
+ else
+ sprintf(buf, "%d", i);
+ s = buf;
+ }
+ break;
default:
abort();
break;
/* Parsing the resource database
*/
+void
+free_screenhack (screenhack *hack)
+{
+ if (hack->visual) free (hack->visual);
+ if (hack->name) free (hack->name);
+ free (hack->command);
+ memset (hack, 0, sizeof(*hack));
+ free (hack);
+}
+
+static void
+free_screenhack_list (screenhack **list, int count)
+{
+ int i;
+ if (!list) return;
+ for (i = 0; i < count; i++)
+ if (list[i])
+ free_screenhack (list[i]);
+ free (list);
+}
+
/* Populate `saver_preferences' with the contents of the resource database.
Note that this may be called multiple times -- it is re-run each time
{
static Bool first_time = True;
+ screenhack **system_default_screenhacks = 0;
+ int system_default_screenhack_count = 0;
+
+ if (first_time)
+ {
+ /* Get the programs resource before the .xscreensaver file has been
+ parsed and merged into the resource database for the first time:
+ this is the value of *programs from the app-defaults file.
+ Then clear it out so that it will be parsed again later, after
+ the init file has been read.
+ */
+ get_screenhacks (p);
+ system_default_screenhacks = p->screenhacks;
+ system_default_screenhack_count = p->screenhacks_count;
+ p->screenhacks = 0;
+ p->screenhacks_count = 0;
+ }
+
if (parse_init_file (p) != 0) /* file might have gone away */
if (!first_time) return;
p->fade_ticks = get_integer_resource ("fadeTicks", "Integer");
p->install_cmap_p = get_boolean_resource ("installColormap", "Boolean");
p->nice_inferior = get_integer_resource ("nice", "Nice");
+ p->inferior_memory_limit = get_byte_resource ("memoryLimit", "MemoryLimit");
+ p->splash_p = get_boolean_resource ("splash", "Boolean");
+ p->capture_stderr_p = get_boolean_resource ("captureStderr", "Boolean");
p->initial_delay = 1000 * get_seconds_resource ("initialDelay", "Time");
p->splash_duration = 1000 * get_seconds_resource ("splashDuration", "Time");
p->pointer_timeout = 1000 * get_seconds_resource ("pointerPollTime", "Time");
p->notice_events_timeout = 1000*get_seconds_resource("windowCreationTimeout",
"Time");
+
+ p->dpms_enabled_p = get_boolean_resource ("dpmsEnabled", "Boolean");
+ p->dpms_standby = 1000 * get_minutes_resource ("dpmsStandby", "Time");
+ p->dpms_suspend = 1000 * get_minutes_resource ("dpmsSuspend", "Time");
+ p->dpms_off = 1000 * get_minutes_resource ("dpmsOff", "Time");
+
+ p->grab_desktop_p = get_boolean_resource ("grabDesktopImages", "Boolean");
+ p->grab_video_p = get_boolean_resource ("grabVideoFrames", "Boolean");
+ p->random_image_p = get_boolean_resource ("chooseRandomImages", "Boolean");
+ p->image_directory = get_string_resource ("imageDirectory",
+ "ImageDirectory");
+
p->shell = get_string_resource ("bourneShell", "BourneShell");
p->demo_command = get_string_resource("demoCommand", "URL");
p->help_url = get_string_resource("helpURL", "URL");
p->load_url_command = get_string_resource("loadURL", "LoadURL");
+
+ /* If "*splash" is unset, default to true. */
+ {
+ char *s = get_string_resource ("splash", "Boolean");
+ if (s)
+ free (s);
+ else
+ p->splash_p = True;
+ }
+
+ /* If "*grabDesktopImages" is unset, default to true. */
{
- char *s;
- if ((s = get_string_resource ("splash", "Boolean")))
- if (!get_boolean_resource("splash", "Boolean"))
- p->splash_duration = 0;
- if (s) free (s);
+ char *s = get_string_resource ("grabDesktopImages", "Boolean");
+ if (s)
+ free (s);
+ else
+ p->grab_desktop_p = True;
}
p->use_xidle_extension = get_boolean_resource ("xidleExtension","Boolean");
p->fade_p = False;
if (! p->fade_p) p->unfade_p = False;
+ /* The DPMS settings may have the value 0.
+ But if they are negative, or are a range less than 10 seconds,
+ reset them to sensible defaults. (Since that must be a mistake.)
+ */
+ if (p->dpms_standby != 0 &&
+ p->dpms_standby < 10 * 1000)
+ p->dpms_standby = 2 * 60 * 60 * 1000; /* 2 hours */
+ if (p->dpms_suspend != 0 &&
+ p->dpms_suspend < 10 * 1000)
+ p->dpms_suspend = 2 * 60 * 60 * 1000; /* 2 hours */
+ if (p->dpms_off != 0 &&
+ p->dpms_off < 10 * 1000)
+ p->dpms_off = 4 * 60 * 60 * 1000; /* 4 hours */
+
+ if (p->dpms_standby == 0 && /* if *all* are 0, then DPMS is disabled */
+ p->dpms_suspend == 0 &&
+ p->dpms_off == 0)
+ p->dpms_enabled_p = False;
+
+
p->watchdog_timeout = p->cycle * 0.6;
if (p->watchdog_timeout < 30000) p->watchdog_timeout = 30000; /* 30 secs */
if (p->watchdog_timeout > 3600000) p->watchdog_timeout = 3600000; /* 1 hr */
get_screenhacks (p);
+ if (system_default_screenhack_count) /* note: first_time is also true */
+ {
+ merge_system_screenhacks (p, system_default_screenhacks,
+ system_default_screenhack_count);
+ free_screenhack_list (system_default_screenhacks,
+ system_default_screenhack_count);
+ system_default_screenhacks = 0;
+ system_default_screenhack_count = 0;
+ }
+
if (p->debug_p)
{
p->xsync_p = True;
}
}
+
+/* If there are any hacks in the system-wide defaults that are not in
+ the ~/.xscreensaver file, add the new ones to the end of the list.
+ This does *not* actually save the file.
+ */
+static void
+merge_system_screenhacks (saver_preferences *p,
+ screenhack **system_list, int system_count)
+{
+ /* Yeah yeah, this is an N^2 operation, but I don't have hashtables handy,
+ so fuck it. */
+
+ int made_space = 0;
+ int i;
+ for (i = 0; i < system_count; i++)
+ {
+ int j;
+ Bool matched_p = False;
+
+ for (j = 0; j < p->screenhacks_count; j++)
+ {
+ char *name;
+ if (!system_list[i]->name)
+ system_list[i]->name = make_hack_name (system_list[i]->command);
+
+ name = p->screenhacks[j]->name;
+ if (!name)
+ name = make_hack_name (p->screenhacks[j]->command);
+
+ matched_p = !strcasecmp (name, system_list[i]->name);
+
+ if (name != p->screenhacks[j]->name)
+ free (name);
+
+ if (matched_p)
+ break;
+ }
+
+ if (!matched_p)
+ {
+ /* We have an entry in the system-wide list that is not in the
+ user's .xscreensaver file. Add it to the end.
+ Note that p->screenhacks is a single malloc block, not a
+ linked list, so we have to realloc it.
+ */
+ screenhack *oh = system_list[i];
+ screenhack *nh = (screenhack *) malloc (sizeof(screenhack));
+
+ if (made_space == 0)
+ {
+ made_space = 10;
+ p->screenhacks = (screenhack **)
+ realloc (p->screenhacks,
+ (p->screenhacks_count + made_space + 1)
+ * sizeof(screenhack));
+ if (!p->screenhacks) abort();
+ }
+
+ nh->enabled_p = oh->enabled_p;
+ nh->visual = oh->visual ? strdup(oh->visual) : 0;
+ nh->name = oh->name ? strdup(oh->name) : 0;
+ nh->command = oh->command ? strdup(oh->command) : 0;
+
+ p->screenhacks[p->screenhacks_count++] = nh;
+ p->screenhacks[p->screenhacks_count] = 0;
+ made_space--;
+
+#if 0
+ fprintf (stderr, "%s: noticed new hack: %s\n", blurb(),
+ (nh->name ? nh->name : make_hack_name (nh->command)));
+#endif
+ }
+ }
+}
+
+
\f
/* Parsing the programs resource.
*/
}
-void
-free_screenhack (screenhack *hack)
-{
- if (hack->visual) free (hack->visual);
- if (hack->name) free (hack->name);
- free (hack->command);
- memset (hack, 0, sizeof(*hack));
- free (hack);
-}
-
-
static char *
format_command (const char *cmd, Bool wrap_p)
{
}
+/* Returns a new string describing the shell command.
+ This may be just the name of the program, capitalized.
+ It also may be something from the resource database (gotten
+ by looking for "hacks.XYZ.name", where XYZ is the program.)
+ */
+char *
+make_hack_name (const char *shell_command)
+{
+ char *s = strdup (shell_command);
+ char *s2;
+ char res_name[255];
+
+ for (s2 = s; *s2; s2++) /* truncate at first whitespace */
+ if (isspace (*s2))
+ {
+ *s2 = 0;
+ break;
+ }
+
+ s2 = strrchr (s, '/'); /* if pathname, take last component */
+ if (s2)
+ {
+ s2 = strdup (s2+1);
+ free (s);
+ s = s2;
+ }
+
+ if (strlen (s) > 50) /* 51 is hereby defined as "unreasonable" */
+ s[50] = 0;
+
+ sprintf (res_name, "hacks.%s.name", s); /* resource? */
+ s2 = get_string_resource (res_name, res_name);
+ if (s2)
+ return s2;
+
+ for (s2 = s; *s2; s2++) /* if it has any capitals, return it */
+ if (*s2 >= 'A' && *s2 <= 'Z')
+ return s;
+
+ if (s[0] >= 'a' && s[0] <= 'z') /* else cap it */
+ s[0] -= 'a'-'A';
+ if (s[0] == 'X' && s[1] >= 'a' && s[1] <= 'z') /* (magic leading X) */
+ s[1] -= 'a'-'A';
+ return s;
+}
+
+
char *
format_hack (screenhack *hack, Bool wrap_p)
{
col = string_columns (h2, strlen (h2), 0);
if (wrap_p && col >= tab)
- {
- out = stab_to (out, col, 77);
- *out += strlen(out);
- }
+ out = stab_to (out, col, 77);
else
*out++ = ' ';
static void
get_screenhacks (saver_preferences *p)
{
- int i = 0;
+ int i, j;
int start = 0;
int end = 0;
int size;
d = get_string_resource ("programs", "Programs");
- if (p->screenhacks)
- {
- for (i = 0; i < p->screenhacks_count; i++)
- if (p->screenhacks[i])
- free_screenhack (p->screenhacks[i]);
- free(p->screenhacks);
- p->screenhacks = 0;
- }
+ free_screenhack_list (p->screenhacks, p->screenhacks_count);
+ p->screenhacks = 0;
+ p->screenhacks_count = 0;
if (!d || !*d)
- {
- p->screenhacks_count = 0;
- p->screenhacks = 0;
- return;
- }
+ return;
size = strlen (d);
/* Count up the number of newlines (which will be equal to or larger than
- the number of hacks.)
+ one less than the number of hacks.)
*/
- i = 0;
- for (i = 0; d[i]; i++)
+ for (i = j = 0; d[i]; i++)
if (d[i] == '\n')
- i++;
- i++;
+ j++;
+ j++;
- p->screenhacks = (screenhack **) calloc (sizeof (screenhack *), i+1);
+ p->screenhacks = (screenhack **) calloc (j + 1, sizeof (screenhack *));
/* Iterate over the lines in `d' (the string with newlines)
and make new strings to stuff into the `screenhacks' array.
projects / xscreensaver / blobdiff