OpenSolaris_b135/cmd/hal/hald/util.c
/***************************************************************************
* CVSID: $Id$
*
* util.c - Various utilities
*
* Copyright (C) 2004 David Zeuthen, <david@fubar.dk>
*
* Licensed under the Academic Free License version 2.1
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
**************************************************************************/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <errno.h>
#include <time.h>
#include <ctype.h>
#include <stdint.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/wait.h>
#include <sys/file.h>
#include <glib.h>
#include <dbus/dbus.h>
#include <dbus/dbus-glib.h>
#include "osspec.h"
#include "logger.h"
#include "hald.h"
#include "hald_runner.h"
#include "hald_dbus.h"
#include "device_info.h"
#include "util.h"
/** Determine whether the given character is valid as the first character
* in a name.
*/
#define VALID_INITIAL_NAME_CHARACTER(c) \
(((c) >= 'A' && (c) <= 'Z') || \
((c) >= 'a' && (c) <= 'z') || \
((c) == '_'))
/** Determine whether the given character is valid as a second or later
* character in a name.
*/
#define VALID_NAME_CHARACTER(c) \
(((c) >= '0' && (c) <= '9') || \
((c) >= 'A' && (c) <= 'Z') || \
((c) >= 'a' && (c) <= 'z') || \
((c) == '_'))
gboolean
hal_util_remove_trailing_slash (gchar *path)
{
gchar *c = NULL;
if (path == NULL) {
return FALSE;
}
c = strrchr (path, '/');
if (c == NULL) {
HAL_WARNING (("Invalid path %s", path));
return 1;
}
if (*(c+1) == '\0')
*c = '\0';
return TRUE;
}
/** Given a path, /foo/bar/bat/foobar, return the last element, e.g.
* foobar.
*
* @param path Path
* @return Pointer into given string
*/
const gchar *
hal_util_get_last_element (const gchar *s)
{
int len;
const gchar *p;
len = strlen (s);
for (p = s + len - 1; p > s; --p) {
if ((*p) == '/')
return p + 1;
}
return s;
}
/** Given a path, this functions finds the path representing the
* parent directory by truncation.
*
* @param path Path
* @return Path for parent or NULL. Must be freed by caller
*/
gchar *
hal_util_get_parent_path (const gchar *path)
{
guint i;
guint len;
gchar *parent_path;
/* Find parent device by truncating our own path */
parent_path = g_strndup (path, HAL_PATH_MAX);
len = strlen (parent_path);
for (i = len - 1; parent_path[i] != '/'; --i) {
parent_path[i] = '\0';
}
parent_path[i] = '\0';
return parent_path;
}
gchar *
hal_util_get_normalized_path (const gchar *path1, const gchar *path2)
{
int len1;
int len2;
const gchar *p1;
const gchar *p2;
gchar buf[HAL_PATH_MAX];
len1 = strlen (path1);
len2 = strlen (path2);
p1 = path1 + len1;
p2 = path2;
while (p2 < path2 + len2 && strncmp (p2, "../", 3) == 0) {
p2 += 3;
while (p1 >= path1 && *(--p1)!='/')
;
}
if ((p1-path1) < 0) {
HAL_ERROR (("Could not normalize '%s' and '%s', return 'NULL'", path1, path2));
return NULL;
}
strncpy (buf, path1, (p1-path1));
buf[p1-path1] = '\0';
return g_strdup_printf ("%s/%s", buf, p2);
}
gboolean
hal_util_get_int_from_file (const gchar *directory, const gchar *file, gint *result, gint base)
{
FILE *f;
char buf[64];
gchar path[HAL_PATH_MAX];
gboolean ret;
f = NULL;
ret = FALSE;
g_snprintf (path, sizeof (path), "%s/%s", directory, file);
f = fopen (path, "rb");
if (f == NULL) {
HAL_ERROR (("Cannot open '%s'", path));
goto out;
}
if (fgets (buf, sizeof (buf), f) == NULL) {
HAL_ERROR (("Cannot read from '%s'", path));
goto out;
}
/* TODO: handle error condition */
*result = strtol (buf, NULL, base);
ret = TRUE;
out:
if (f != NULL)
fclose (f);
return ret;
}
gboolean
hal_util_set_int_from_file (HalDevice *d, const gchar *key, const gchar *directory, const gchar *file, gint base)
{
gint value;
gboolean ret;
ret = FALSE;
if (hal_util_get_int_from_file (directory, file, &value, base))
ret = hal_device_property_set_int (d, key, value);
return ret;
}
gboolean
hal_util_get_uint64_from_file (const gchar *directory, const gchar *file, guint64 *result, gint base)
{
FILE *f;
char buf[64];
gchar path[HAL_PATH_MAX];
gboolean ret;
f = NULL;
ret = FALSE;
g_snprintf (path, sizeof (path), "%s/%s", directory, file);
f = fopen (path, "rb");
if (f == NULL) {
HAL_ERROR (("Cannot open '%s'", path));
goto out;
}
if (fgets (buf, sizeof (buf), f) == NULL) {
HAL_ERROR (("Cannot read from '%s'", path));
goto out;
}
/* TODO: handle error condition */
*result = strtoll (buf, NULL, base);
ret = TRUE;
out:
if (f != NULL)
fclose (f);
return ret;
}
gboolean
hal_util_set_uint64_from_file (HalDevice *d, const gchar *key, const gchar *directory, const gchar *file, gint base)
{
guint64 value;
gboolean ret;
ret = FALSE;
if (hal_util_get_uint64_from_file (directory, file, &value, base))
ret = hal_device_property_set_uint64 (d, key, value);
return ret;
}
gboolean
hal_util_get_bcd2_from_file (const gchar *directory, const gchar *file, gint *result)
{
FILE *f;
char buf[64];
gchar path[HAL_PATH_MAX];
gboolean ret;
gint digit;
gint left, right;
gboolean passed_white_space;
gint num_prec;
gsize len;
gchar c;
guint i;
f = NULL;
ret = FALSE;
g_snprintf (path, sizeof (path), "%s/%s", directory, file);
f = fopen (path, "rb");
if (f == NULL) {
HAL_ERROR (("Cannot open '%s'", path));
goto out;
}
if (fgets (buf, sizeof (buf), f) == NULL) {
HAL_ERROR (("Cannot read from '%s'", path));
goto out;
}
left = 0;
len = strlen (buf);
passed_white_space = FALSE;
for (i = 0; i < len && buf[i] != '.'; i++) {
if (g_ascii_isspace (buf[i])) {
if (passed_white_space)
break;
else
continue;
}
passed_white_space = TRUE;
left *= 16;
c = buf[i];
digit = (int) (c - '0');
left += digit;
}
i++;
right = 0;
num_prec = 0;
for (; i < len; i++) {
if (g_ascii_isspace (buf[i]))
break;
if (num_prec == 2) /* Only care about two digits
* of precision */
break;
right *= 16;
c = buf[i];
digit = (int) (c - '0');
right += digit;
num_prec++;
}
for (; num_prec < 2; num_prec++)
right *= 16;
*result = left * 256 + (right & 255);
ret = TRUE;
out:
if (f != NULL)
fclose (f);
return ret;
}
gboolean
hal_util_set_bcd2_from_file (HalDevice *d, const gchar *key, const gchar *directory, const gchar *file)
{
gint value;
gboolean ret;
ret = FALSE;
if (hal_util_get_bcd2_from_file (directory, file, &value))
ret = hal_device_property_set_int (d, key, value);
return ret;
}
gchar *
hal_util_get_string_from_file (const gchar *directory, const gchar *file)
{
FILE *f;
static gchar buf[256];
gchar path[HAL_PATH_MAX];
gchar *result;
gsize len;
gint i;
f = NULL;
result = NULL;
g_snprintf (path, sizeof (path), "%s/%s", directory, file);
f = fopen (path, "rb");
if (f == NULL) {
HAL_ERROR (("Cannot open '%s'", path));
goto out;
}
buf[0] = '\0';
if (fgets (buf, sizeof (buf), f) == NULL) {
HAL_ERROR (("Cannot read from '%s'", path));
goto out;
}
len = strlen (buf);
if (len>0)
buf[len-1] = '\0';
/* Clear remaining whitespace */
for (i = len - 2; i >= 0; --i) {
if (!g_ascii_isspace (buf[i]))
break;
buf[i] = '\0';
}
result = buf;
out:
if (f != NULL)
fclose (f);
return result;
}
gboolean
hal_util_set_string_from_file (HalDevice *d, const gchar *key, const gchar *directory, const gchar *file)
{
gchar *buf;
gboolean ret;
ret = FALSE;
if ((buf = hal_util_get_string_from_file (directory, file)) != NULL)
ret = hal_device_property_set_string (d, key, buf);
return ret;
}
void
hal_util_compute_udi (HalDeviceStore *store, gchar *dst, gsize dstsize, const gchar *format, ...)
{
guint i;
va_list args;
gchar buf[256];
va_start (args, format);
g_vsnprintf (buf, sizeof (buf), format, args);
va_end (args);
g_strcanon (buf,
"/_"
"abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"1234567890", '_');
g_strlcpy (dst, buf, dstsize);
if (hal_device_store_find (store, dst) == NULL)
goto out;
for (i = 0; ; i++) {
g_snprintf (dst, dstsize, "%s_%d", buf, i);
if (hal_device_store_find (store, dst) == NULL)
goto out;
}
out:
;
}
gboolean
hal_util_path_ascend (gchar *path)
{
gchar *p;
if (path == NULL)
return FALSE;
p = strrchr (path, '/');
if (p == NULL)
return FALSE;
*p = '\0';
return TRUE;
}
static gboolean _grep_can_reuse = FALSE;
void
hal_util_grep_discard_existing_data (void)
{
_grep_can_reuse = FALSE;
}
/** Given a directory and filename, open the file and search for the
* first line that starts with the given linestart string. Returns
* the rest of the line as a string if found.
*
* @param directory Directory, e.g. "/proc/acpi/battery/BAT0"
* @param file File, e.g. "info"
* @param linestart Start of line, e.g. "serial number"
* @param reuse Whether we should reuse the file contents
* if the file is the same; can be cleared
* with hal_util_grep_discard_existing_data()
* @return NULL if not found, otherwise the remainder
* of the line, e.g. ": 21805" if
* the file /proc/acpi/battery/BAT0 contains
* this line "serial number: 21805"
* The string is only valid until the next
* invocation of this function.
*/
gchar *
hal_util_grep_file (const gchar *directory, const gchar *file, const gchar *linestart, gboolean reuse)
{
static gchar buf[2048];
static unsigned int bufsize;
static gchar filename[HAL_PATH_MAX];
static gchar oldfilename[HAL_PATH_MAX];
gchar *result;
gsize linestart_len;
gchar *p;
result = NULL;
/* TODO: use reuse and _grep_can_reuse parameters to avoid loading
* the file again and again
*/
if (file != NULL && strlen (file) > 0)
snprintf (filename, sizeof (filename), "%s/%s", directory, file);
else
strncpy (filename, directory, sizeof (filename));
if (_grep_can_reuse && reuse && strcmp (oldfilename, filename) == 0) {
/* just reuse old file; e.g. bufsize, buf */
/*HAL_INFO (("hal_util_grep_file: reusing buf for %s", filename));*/
} else {
FILE *f;
f = fopen (filename, "r");
if (f == NULL)
goto out;
bufsize = fread (buf, sizeof (char), sizeof (buf) - 1, f);
buf[bufsize] = '\0';
fclose (f);
/*HAL_INFO (("hal_util_grep_file: read %s of %d bytes", filename, bufsize));*/
}
/* book keeping */
_grep_can_reuse = TRUE;
strncpy (oldfilename, filename, sizeof(oldfilename));
linestart_len = strlen (linestart);
/* analyze buf */
p = buf;
do {
unsigned int linelen;
static char line[256];
for (linelen = 0; p[linelen] != '\n' && p[linelen] != '\0'; linelen++)
;
if (linelen < sizeof (line)) {
strncpy (line, p, linelen);
line[linelen] = '\0';
if (strncmp (line, linestart, linestart_len) == 0) {
result = line + linestart_len;
goto out;
}
}
p += linelen + 1;
} while (p < buf + bufsize);
out:
return result;
}
gchar *
hal_util_grep_string_elem_from_file (const gchar *directory, const gchar *file,
const gchar *linestart, guint elem, gboolean reuse)
{
gchar *line;
gchar *res;
static gchar buf[256];
gchar **tokens;
guint i, j;
res = NULL;
tokens = NULL;
if (((line = hal_util_grep_file (directory, file, linestart, reuse)) == NULL) || (strlen (line) == 0))
goto out;
tokens = g_strsplit_set (line, " \t:", 0);
for (i = 0, j = 0; tokens[i] != NULL; i++) {
if (strlen (tokens[i]) == 0)
continue;
if (j == elem) {
strncpy (buf, tokens[i], sizeof (buf));
res = buf;
goto out;
}
j++;
}
out:
if (tokens != NULL)
g_strfreev (tokens);
return res;
}
gint
hal_util_grep_int_elem_from_file (const gchar *directory, const gchar *file,
const gchar *linestart, guint elem, guint base, gboolean reuse)
{
gchar *endptr;
gchar *strvalue;
int value;
value = G_MAXINT;
strvalue = hal_util_grep_string_elem_from_file (directory, file, linestart, elem, reuse);
if (strvalue == NULL)
goto out;
value = strtol (strvalue, &endptr, base);
if (endptr == strvalue) {
value = G_MAXINT;
goto out;
}
out:
return value;
}
/** Get a string value from a formatted text file and assign it to
* a property on a device object.
*
* Example: Given that the file /proc/acpi/battery/BAT0/info contains
* the line
*
* "design voltage: 10800 mV"
*
* then hal_util_set_string_elem_from_file (d, "battery.foo",
* "/proc/acpi/battery/BAT0", "info", "design voltage", 1) will assign
* the string "mV" to the property "battery.foo" on d.
*
* @param d Device object
* @param key Property name
* @param directory Directory, e.g. "/proc/acpi/battery/BAT0"
* @param file File, e.g. "info"
* @param linestart Start of line, e.g. "design voltage"
* @param elem Element number after linestart to extract
* excluding whitespace and ':' characters.
* @return TRUE, if, and only if, the value could be
* extracted and the property was set
*/
gboolean
hal_util_set_string_elem_from_file (HalDevice *d, const gchar *key,
const gchar *directory, const gchar *file,
const gchar *linestart, guint elem, gboolean reuse)
{
gboolean res;
gchar *value;
res = FALSE;
if ((value = hal_util_grep_string_elem_from_file (directory, file, linestart, elem, reuse)) == NULL)
goto out;
res = hal_device_property_set_string (d, key, value);
out:
return res;
}
/** Get an integer value from a formatted text file and assign it to
* a property on a device object.
*
* Example: Given that the file /proc/acpi/battery/BAT0/info contains
* the line
*
* "design voltage: 10800 mV"
*
* then hal_util_set_int_elem_from_file (d, "battery.foo",
* "/proc/acpi/battery/BAT0", "info", "design voltage", 0) will assign
* the integer 10800 to the property "battery.foo" on d.
*
* @param d Device object
* @param key Property name
* @param directory Directory, e.g. "/proc/acpi/battery/BAT0"
* @param file File, e.g. "info"
* @param linestart Start of line, e.g. "design voltage"
* @param elem Element number after linestart to extract
* excluding whitespace and ':' characters.
* @return TRUE, if, and only if, the value could be
* extracted and the property was set
*/
gboolean
hal_util_set_int_elem_from_file (HalDevice *d, const gchar *key,
const gchar *directory, const gchar *file,
const gchar *linestart, guint elem, guint base, gboolean reuse)
{
gchar *endptr;
gboolean res;
gchar *strvalue;
int value;
res = FALSE;
strvalue = hal_util_grep_string_elem_from_file (directory, file, linestart, elem, reuse);
if (strvalue == NULL)
goto out;
value = strtol (strvalue, &endptr, base);
if (endptr == strvalue)
goto out;
res = hal_device_property_set_int (d, key, value);
out:
return res;
}
/** Get a value from a formatted text file, test it against a given
* value, and set a boolean property on a device object with the
* test result.
*
* Example: Given that the file /proc/acpi/battery/BAT0/info contains
* the line
*
* "present: yes"
*
* then hal_util_set_bool_elem_from_file (d, "battery.baz",
* "/proc/acpi/battery/BAT0", "info", "present", 0, "yes") will assign
* the boolean TRUE to the property "battery.baz" on d.
*
* If, instead, the line was
*
* "present: no"
*
* the value assigned will be FALSE.
*
* @param d Device object
* @param key Property name
* @param directory Directory, e.g. "/proc/acpi/battery/BAT0"
* @param file File, e.g. "info"
* @param linestart Start of line, e.g. "design voltage"
* @param elem Element number after linestart to extract
* excluding whitespace and ':' characters.
* @param expected Value to test against
* @return TRUE, if, and only if, the value could be
* extracted and the property was set
*/
gboolean
hal_util_set_bool_elem_from_file (HalDevice *d, const gchar *key,
const gchar *directory, const gchar *file,
const gchar *linestart, guint elem, const gchar *expected, gboolean reuse)
{
gchar *line;
gboolean res;
gchar **tokens;
guint i, j;
res = FALSE;
tokens = NULL;
if (((line = hal_util_grep_file (directory, file, linestart, reuse)) == NULL) || (strlen (line) == 0))
goto out;
tokens = g_strsplit_set (line, " \t:", 0);
for (i = 0, j = 0; tokens[i] != NULL; i++) {
if (strlen (tokens[i]) == 0)
continue;
if (j == elem) {
hal_device_property_set_bool (d, key, strcmp (tokens[i], expected) == 0);
res = TRUE;
goto out;
}
j++;
}
out:
if (tokens != NULL)
g_strfreev (tokens);
return res;
}
gchar **
hal_util_dup_strv_from_g_slist (GSList *strlist)
{
guint j;
guint len;
gchar **strv;
GSList *i;
len = g_slist_length (strlist);
strv = g_new (char *, len + 1);
for (i = strlist, j = 0; i != NULL; i = g_slist_next (i), j++) {
strv[j] = g_strdup ((const gchar *) i->data);
}
strv[j] = NULL;
return strv;
}
/* -------------------------------------------------------------------------------------------------------------- */
typedef struct {
HalDevice *d;
gchar **programs;
gchar **extra_env;
guint next_program;
HalCalloutsDone callback;
gpointer userdata1;
gpointer userdata2;
} Callout;
static void callout_do_next (Callout *c);
static void
callout_terminated (HalDevice *d, guint32 exit_type,
gint return_code, gchar **error,
gpointer data1, gpointer data2)
{
Callout *c;
c = (Callout *) data1;
callout_do_next (c);
}
static void
callout_do_next (Callout *c)
{
/* Check if we're done */
if (c->programs[c->next_program] == NULL) {
HalDevice *d;
gpointer userdata1;
gpointer userdata2;
HalCalloutsDone callback;
d = c->d;
userdata1 = c->userdata1;
userdata2 = c->userdata2;
callback = c->callback;
g_strfreev (c->programs);
g_strfreev (c->extra_env);
g_free (c);
callback (d, userdata1, userdata2);
} else {
hald_runner_run(c->d, c->programs[c->next_program], c->extra_env,
HAL_HELPER_TIMEOUT, callout_terminated,
(gpointer)c, NULL);
c->next_program++;
}
}
static void
hal_callout_device (HalDevice *d, HalCalloutsDone callback, gpointer userdata1, gpointer userdata2,
GSList *programs, gchar **extra_env)
{
Callout *c;
c = g_new0 (Callout, 1);
c->d = d;
c->callback = callback;
c->userdata1 = userdata1;
c->userdata2 = userdata2;
c->programs = hal_util_dup_strv_from_g_slist (programs);
c->extra_env = g_strdupv (extra_env);
c->next_program = 0;
callout_do_next (c);
}
void
hal_util_callout_device_add (HalDevice *d, HalCalloutsDone callback, gpointer userdata1, gpointer userdata2)
{
GSList *programs;
gchar *extra_env[2] = {"HALD_ACTION=add", NULL};
if ((programs = hal_device_property_get_strlist (d, "info.callouts.add")) == NULL) {
callback (d, userdata1, userdata2);
goto out;
}
HAL_INFO (("Add callouts for udi=%s", d->udi));
hal_callout_device (d, callback, userdata1, userdata2, programs, extra_env);
out:
;
}
void
hal_util_callout_device_remove (HalDevice *d, HalCalloutsDone callback, gpointer userdata1, gpointer userdata2)
{
GSList *programs;
gchar *extra_env[2] = {"HALD_ACTION=remove", NULL};
if ((programs = hal_device_property_get_strlist (d, "info.callouts.remove")) == NULL) {
callback (d, userdata1, userdata2);
goto out;
}
HAL_INFO (("Remove callouts for udi=%s", d->udi));
hal_callout_device (d, callback, userdata1, userdata2, programs, extra_env);
out:
;
}
void
hal_util_callout_device_preprobe (HalDevice *d, HalCalloutsDone callback, gpointer userdata1, gpointer userdata2)
{
GSList *programs;
gchar *extra_env[2] = {"HALD_ACTION=preprobe", NULL};
if ((programs = hal_device_property_get_strlist (d, "info.callouts.preprobe")) == NULL) {
callback (d, userdata1, userdata2);
goto out;
}
HAL_INFO (("Preprobe callouts for udi=%s", d->udi));
hal_callout_device (d, callback, userdata1, userdata2, programs, extra_env);
out:
;
}
gchar *
hal_util_strdup_valid_utf8 (const char *str)
{
char *endchar;
char *newstr;
unsigned int count = 0;
if (str == NULL)
return NULL;
newstr = g_strdup (str);
while (!g_utf8_validate (newstr, -1, (const char **) &endchar)) {
*endchar = '?';
count++;
}
if (strlen(newstr) == count)
return NULL;
else
return newstr;
}
void
hal_util_hexdump (const void *mem, unsigned int size)
{
unsigned int i;
unsigned int j;
unsigned int n;
const char *buf = (const char *) mem;
n = 0;
printf ("Dumping %d=0x%x bytes\n", size, size);
while (n < size) {
printf ("0x%04x: ", n);
j = n;
for (i = 0; i < 16; i++) {
if (j >= size)
break;
printf ("%02x ", buf[j]);
j++;
}
for ( ; i < 16; i++) {
printf (" ");
}
printf (" ");
j = n;
for (i = 0; i < 16; i++) {
if (j >= size)
break;
printf ("%c", isprint(buf[j]) ? buf[j] : '.');
j++;
}
printf ("\n");
n += 16;
}
}
gboolean
hal_util_is_mounted_by_hald (const char *mount_point)
{
int i;
FILE *hal_mtab;
int hal_mtab_len;
int num_read;
char *hal_mtab_buf;
char **lines;
gboolean found;
hal_mtab = NULL;
hal_mtab_buf = NULL;
found = FALSE;
/*HAL_DEBUG (("examining /media/.hal-mtab for %s", mount_point));*/
hal_mtab = fopen ("/media/.hal-mtab", "r");
if (hal_mtab == NULL) {
HAL_ERROR (("Cannot open /media/.hal-mtab"));
goto out;
}
if (fseek (hal_mtab, 0L, SEEK_END) != 0) {
HAL_ERROR (("Cannot seek to end of /media/.hal-mtab"));
goto out;
}
hal_mtab_len = ftell (hal_mtab);
if (hal_mtab_len < 0) {
HAL_ERROR (("Cannot determine size of /media/.hal-mtab"));
goto out;
}
rewind (hal_mtab);
hal_mtab_buf = g_new0 (char, hal_mtab_len + 1);
num_read = fread (hal_mtab_buf, 1, hal_mtab_len, hal_mtab);
if (num_read != hal_mtab_len) {
HAL_ERROR (("Cannot read from /media/.hal-mtab"));
goto out;
}
fclose (hal_mtab);
hal_mtab = NULL;
/*HAL_DEBUG (("hal_mtab = '%s'\n", hal_mtab_buf));*/
lines = g_strsplit (hal_mtab_buf, "\n", 0);
g_free (hal_mtab_buf);
hal_mtab_buf = NULL;
/* find the entry we're going to unmount */
for (i = 0; lines[i] != NULL && !found; i++) {
char **line_elements;
/*HAL_DEBUG ((" line = '%s'", lines[i]));*/
if ((lines[i])[0] == '#')
continue;
line_elements = g_strsplit (lines[i], "\t", 6);
if (g_strv_length (line_elements) == 6) {
/*
HAL_DEBUG ((" devfile = '%s'", line_elements[0]));
HAL_DEBUG ((" uid = '%s'", line_elements[1]));
HAL_DEBUG ((" session id = '%s'", line_elements[2]));
HAL_DEBUG ((" fs = '%s'", line_elements[3]));
HAL_DEBUG ((" options = '%s'", line_elements[4]));
HAL_DEBUG ((" mount_point = '%s'", line_elements[5]));
HAL_DEBUG ((" (comparing against '%s')", mount_point));
*/
if (strcmp (line_elements[5], mount_point) == 0) {
found = TRUE;
/*HAL_INFO (("device at '%s' is indeed mounted by HAL's Mount()", mount_point));*/
}
}
g_strfreev (line_elements);
}
g_strfreev (lines);
out:
if (hal_mtab != NULL)
fclose (hal_mtab);
if (hal_mtab_buf != NULL)
g_free (hal_mtab_buf);
return found;
}
void
hal_util_branch_claim (HalDeviceStore *store, HalDevice *root, dbus_bool_t claimed,
const char *service, int uid)
{
GSList *children;
GSList *i;
HalDevice *d;
if (claimed) {
hal_device_property_set_bool (root, "info.claimed", claimed);
hal_device_property_set_string (root, "info.claimed.service", service);
hal_device_property_set_int (root, "info.claimed.uid", uid);
} else {
hal_device_property_remove (root, "info.claimed");
hal_device_property_remove (root, "info.claimed.service");
hal_device_property_remove (root, "info.claimed.uid");
}
children = hal_device_store_match_multiple_key_value_string (store,
"info.parent", root->udi);
for (i = children; i != NULL; i = g_slist_next (i)) {
d = HAL_DEVICE (i->data);
hal_util_branch_claim (store, d, claimed, service, uid);
}
g_slist_free (children);
}
/** Given an interface name, check if it is valid.
* @param name A given interface name
* @return TRUE if name is valid, otherwise FALSE
*/
gboolean
is_valid_interface_name(const char *name) {
const char *end;
const char *last_dot;
last_dot = NULL;
if (strlen(name) == 0)
return FALSE;
end = name + strlen(name);
if (*name == '.') /* disallow starting with a . */
return FALSE;
else if (!VALID_INITIAL_NAME_CHARACTER (*name))
return FALSE;
else
name++;
while (name != end) {
if (*name == '.') {
if ((name + 1) == end)
return FALSE;
else if (!VALID_INITIAL_NAME_CHARACTER (*(name + 1)))
return FALSE;
last_dot = name;
name++; /* we just validated the next char, so skip two */
} else if (!VALID_NAME_CHARACTER (*name))
return FALSE;
name++;
}
if (last_dot == NULL)
return FALSE;
return TRUE;
}