* Copyright (C) 1995-1998 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
+ * modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
- * Library General Public License for more details.
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU Library General Public
+ * You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
+
+/*
+ * Modified by the GLib Team and others 1997-2000. See the AUTHORS
+ * file for a list of people on the GLib Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GLib at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+/*
+ * MT safe for the unix part, FIXME: make the win32 part MT safe as well.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifdef HAVE_UNISTD_H
#include <unistd.h>
+#endif
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
+#include <errno.h>
+#ifdef HAVE_PWD_H
#include <pwd.h>
+#endif
#include <sys/types.h>
+#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
+#endif
/* implement Glib's inline functions
*/
#define G_CAN_INLINE 1
#include "glib.h"
+#ifdef MAXPATHLEN
+#define G_PATH_LENGTH MAXPATHLEN
+#elif defined (PATH_MAX)
+#define G_PATH_LENGTH PATH_MAX
+#elif defined (_PC_PATH_MAX)
+#define G_PATH_LENGTH sysconf(_PC_PATH_MAX)
+#else
+#define G_PATH_LENGTH 2048
+#endif
+
+#ifdef G_OS_WIN32
+# define STRICT /* Strict typing, please */
+# include <windows.h>
+# include <ctype.h>
+# include <direct.h>
+# include <io.h>
+#endif /* G_OS_WIN32 */
+
+#ifdef HAVE_CODESET
+#include <langinfo.h>
+#endif
+
const guint glib_major_version = GLIB_MAJOR_VERSION;
const guint glib_minor_version = GLIB_MINOR_VERSION;
const guint glib_micro_version = GLIB_MICRO_VERSION;
const guint glib_interface_age = GLIB_INTERFACE_AGE;
const guint glib_binary_age = GLIB_BINARY_AGE;
+#if !defined (HAVE_MEMMOVE) && !defined (HAVE_WORKING_BCOPY)
+void
+g_memmove (gpointer dest, gconstpointer src, gulong len)
+{
+ gchar* destptr = dest;
+ const gchar* srcptr = src;
+ if (src + len < dest || dest + len < src)
+ {
+ bcopy (src, dest, len);
+ return;
+ }
+ else if (dest <= src)
+ {
+ while (len--)
+ *(destptr++) = *(srcptr++);
+ }
+ else
+ {
+ destptr += len;
+ srcptr += len;
+ while (len--)
+ *(--destptr) = *(--srcptr);
+ }
+}
+#endif /* !HAVE_MEMMOVE && !HAVE_WORKING_BCOPY */
+
+void
+g_atexit (GVoidFunc func)
+{
+ gint result;
+ gchar *error = NULL;
+
+ /* keep this in sync with glib.h */
+
+#ifdef G_NATIVE_ATEXIT
+ result = ATEXIT (func);
+ if (result)
+ error = g_strerror (errno);
+#elif defined (HAVE_ATEXIT)
+# ifdef NeXT /* @#%@! NeXTStep */
+ result = !atexit ((void (*)(void)) func);
+ if (result)
+ error = g_strerror (errno);
+# else
+ result = atexit ((void (*)(void)) func);
+ if (result)
+ error = g_strerror (errno);
+# endif /* NeXT */
+#elif defined (HAVE_ON_EXIT)
+ result = on_exit ((void (*)(int, void *)) func, NULL);
+ if (result)
+ error = g_strerror (errno);
+#else
+ result = 0;
+ error = "no implementation";
+#endif /* G_NATIVE_ATEXIT */
+
+ if (error)
+ g_error ("Could not register atexit() function: %s", error);
+}
gint
g_snprintf (gchar *str,
va_list args;
gint retval;
+ g_return_val_if_fail (str != NULL, 0);
+ g_return_val_if_fail (n > 0, 0);
+ g_return_val_if_fail (fmt != NULL, 0);
+
va_start (args, fmt);
retval = vsnprintf (str, n, fmt, args);
va_end (args);
-
+
+ if (retval < 0)
+ {
+ str[n-1] = '\0';
+ retval = strlen (str);
+ }
+
return retval;
#else /* !HAVE_VSNPRINTF */
gchar *printed;
va_list args;
+ g_return_val_if_fail (str != NULL, 0);
+ g_return_val_if_fail (n > 0, 0);
+ g_return_val_if_fail (fmt != NULL, 0);
+
va_start (args, fmt);
printed = g_strdup_vprintf (fmt, args);
va_end (args);
#ifdef HAVE_VSNPRINTF
gint retval;
+ g_return_val_if_fail (str != NULL, 0);
+ g_return_val_if_fail (n > 0, 0);
+ g_return_val_if_fail (fmt != NULL, 0);
+
retval = vsnprintf (str, n, fmt, args);
+ if (retval < 0)
+ {
+ str[n-1] = '\0';
+ retval = strlen (str);
+ }
+
return retval;
#else /* !HAVE_VSNPRINTF */
gchar *printed;
+ g_return_val_if_fail (str != NULL, 0);
+ g_return_val_if_fail (n > 0, 0);
+ g_return_val_if_fail (fmt != NULL, 0);
+
printed = g_strdup_vprintf (fmt, args);
strncpy (str, printed, n);
str[n-1] = '\0';
g_basename (const gchar *file_name)
{
register gchar *base;
+#ifdef G_ENABLE_DEBUG
+ static gboolean first_call = TRUE;
+
+ if (first_call)
+ {
+ g_warning("g_basename is deprecated. Use g_path_get_basename instead.");
+ g_warning("Watch out! You have to g_free the string returned by "
+ "g_path_get_basename.");
+ first_call = FALSE;
+ }
+#endif /* G_ENABLE_DEBUG */
g_return_val_if_fail (file_name != NULL, NULL);
- base = strrchr (file_name, '/');
+ base = strrchr (file_name, G_DIR_SEPARATOR);
if (base)
return base + 1;
+
+#ifdef G_OS_WIN32
+ if (isalpha (file_name[0]) && file_name[1] == ':')
+ return (gchar*) file_name + 2;
+#endif /* G_OS_WIN32 */
return (gchar*) file_name;
}
gchar*
-g_dirname (const gchar *file_name)
+g_path_get_basename (const gchar *file_name)
+{
+ register gint base;
+ register gint last_nonslash;
+ guint len;
+ gchar *retval;
+
+ g_return_val_if_fail (file_name != NULL, NULL);
+
+ if (file_name[0] == '\0')
+ /* empty string */
+ return g_strdup (".");
+
+ last_nonslash = strlen (file_name) - 1;
+
+ while (last_nonslash >= 0 && file_name [last_nonslash] == G_DIR_SEPARATOR)
+ last_nonslash--;
+
+ if (last_nonslash == -1)
+ /* string only containing slashes */
+ return g_strdup (G_DIR_SEPARATOR_S);
+
+#ifdef G_OS_WIN32
+ if (last_nonslash == 1 && isalpha (file_name[0]) && file_name[1] == ':')
+ /* string only containing slashes and a drive */
+ return g_strdup (G_DIR_SEPARATOR_S);
+#endif /* G_OS_WIN32 */
+
+ base = last_nonslash;
+
+ while (base >=0 && file_name [base] != G_DIR_SEPARATOR)
+ base--;
+
+#ifdef G_OS_WIN32
+ if (base == -1 && isalpha (file_name[0]) && file_name[1] == ':')
+ base = 1;
+#endif /* G_OS_WIN32 */
+
+ len = last_nonslash - base;
+ retval = g_malloc (len + 1);
+ memcpy (retval, file_name + base + 1, len);
+ retval [len] = '\0';
+ return retval;
+}
+
+gboolean
+g_path_is_absolute (const gchar *file_name)
+{
+ g_return_val_if_fail (file_name != NULL, FALSE);
+
+ if (file_name[0] == G_DIR_SEPARATOR)
+ return TRUE;
+
+#ifdef G_OS_WIN32
+ if (isalpha (file_name[0]) && file_name[1] == ':' && file_name[2] == G_DIR_SEPARATOR)
+ return TRUE;
+#endif
+
+ return FALSE;
+}
+
+gchar*
+g_path_skip_root (gchar *file_name)
+{
+ g_return_val_if_fail (file_name != NULL, NULL);
+
+ if (file_name[0] == G_DIR_SEPARATOR)
+ return file_name + 1;
+
+#ifdef G_OS_WIN32
+ if (isalpha (file_name[0]) && file_name[1] == ':' && file_name[2] == G_DIR_SEPARATOR)
+ return file_name + 3;
+#endif
+
+ return NULL;
+}
+
+gchar*
+g_path_get_dirname (const gchar *file_name)
{
register gchar *base;
register guint len;
g_return_val_if_fail (file_name != NULL, NULL);
- base = strrchr (file_name, '/');
+ base = strrchr (file_name, G_DIR_SEPARATOR);
if (!base)
return g_strdup (".");
- while (base > file_name && *base == '/')
+ while (base > file_name && *base == G_DIR_SEPARATOR)
base--;
len = (guint) 1 + base - file_name;
return base;
}
-#ifdef MAXPATHLEN
-#define G_PATH_LENGTH (MAXPATHLEN + 1)
-#elif defined (PATH_MAX)
-#define G_PATH_LENGTH (PATH_MAX + 1)
-#else /* !MAXPATHLEN */
-#define G_PATH_LENGTH (2048 + 1)
-#endif /* !MAXPATHLEN && !PATH_MAX */
+gchar*
+g_dirname (const gchar *file_name)
+{
+#ifdef G_ENABLE_DEBUG
+ static gboolean first_call = TRUE;
+
+ if (first_call)
+ {
+ g_warning("g_dirname is deprecated. Use g_path_get_dirname instead.");
+ first_call = FALSE;
+ }
+#endif /* G_ENABLE_DEBUG */
+
+ return g_path_get_dirname (file_name);
+}
gchar*
g_get_current_dir (void)
{
- gchar *buffer;
- gchar *dir;
-
- buffer = g_new (gchar, G_PATH_LENGTH);
- *buffer = 0;
+ gchar *buffer = NULL;
+ gchar *dir = NULL;
+ static gulong max_len = (G_PATH_LENGTH == -1) ? 2048 : G_PATH_LENGTH;
/* We don't use getcwd(3) on SUNOS, because, it does a popen("pwd")
* and, if that wasn't bad enough, hangs in doing so.
*/
#if defined (sun) && !defined (__SVR4)
+ buffer = g_new (gchar, max_len + 1);
+ *buffer = 0;
dir = getwd (buffer);
#else /* !sun */
- dir = getcwd (buffer, G_PATH_LENGTH - 1);
+ while (max_len < G_MAXULONG / 2)
+ {
+ buffer = g_new (gchar, max_len + 1);
+ *buffer = 0;
+ dir = getcwd (buffer, max_len);
+
+ if (dir || errno != ERANGE)
+ break;
+
+ g_free (buffer);
+ max_len *= 2;
+ }
#endif /* !sun */
if (!dir || !*buffer)
/* hm, should we g_error() out here?
* this can happen if e.g. "./" has mode \0000
*/
- buffer[0] = '/';
+ buffer[0] = G_DIR_SEPARATOR;
buffer[1] = 0;
}
return dir;
}
+gchar*
+g_getenv (const gchar *variable)
+{
+#ifndef G_OS_WIN32
+ g_return_val_if_fail (variable != NULL, NULL);
+
+ return getenv (variable);
+#else
+ G_LOCK_DEFINE_STATIC (getenv);
+ struct env_struct
+ {
+ gchar *key;
+ gchar *value;
+ } *env;
+ static GArray *environs = NULL;
+ gchar *system_env;
+ guint length, i;
+ gchar dummy[2];
+
+ g_return_val_if_fail (variable != NULL, NULL);
+
+ G_LOCK (getenv);
+
+ if (!environs)
+ environs = g_array_new (FALSE, FALSE, sizeof (struct env_struct));
+
+ /* First we try to find the envinronment variable inside the already
+ * found ones.
+ */
+
+ for (i = 0; i < environs->len; i++)
+ {
+ env = &g_array_index (environs, struct env_struct, i);
+ if (strcmp (env->key, variable) == 0)
+ {
+ g_assert (env->value);
+ G_UNLOCK (getenv);
+ return env->value;
+ }
+ }
+
+ /* If not found, we ask the system */
+
+ system_env = getenv (variable);
+ if (!system_env)
+ {
+ G_UNLOCK (getenv);
+ return NULL;
+ }
+
+ /* On Windows NT, it is relatively typical that environment variables
+ * contain references to other environment variables. Handle that by
+ * calling ExpandEnvironmentStrings.
+ */
+
+ g_array_set_size (environs, environs->len + 1);
+
+ env = &g_array_index (environs, struct env_struct, environs->len - 1);
+
+ /* First check how much space we need */
+ length = ExpandEnvironmentStrings (system_env, dummy, 2);
+
+ /* Then allocate that much, and actualy do the expansion and insert
+ * the new found pair into our buffer
+ */
+
+ env->value = g_malloc (length);
+ env->key = g_strdup (variable);
+
+ ExpandEnvironmentStrings (system_env, env->value, length);
+
+ G_UNLOCK (getenv);
+ return env->value;
+#endif
+}
+
+
+G_LOCK_DEFINE_STATIC (g_utils_global);
+
static gchar *g_tmp_dir = NULL;
static gchar *g_user_name = NULL;
static gchar *g_real_name = NULL;
static gchar *g_home_dir = NULL;
+/* HOLDS: g_utils_global_lock */
static void
g_get_any_init (void)
{
if (!g_tmp_dir)
{
- struct passwd *pw;
-
- g_tmp_dir = g_strdup (getenv ("TMPDIR"));
+ g_tmp_dir = g_strdup (g_getenv ("TMPDIR"));
if (!g_tmp_dir)
- g_tmp_dir = g_strdup (getenv ("TMP"));
+ g_tmp_dir = g_strdup (g_getenv ("TMP"));
if (!g_tmp_dir)
- g_tmp_dir = g_strdup (getenv ("TEMP"));
+ g_tmp_dir = g_strdup (g_getenv ("TEMP"));
+
+#ifdef P_tmpdir
if (!g_tmp_dir)
- g_tmp_dir = g_strdup ("/tmp");
+ {
+ int k;
+ g_tmp_dir = g_strdup (P_tmpdir);
+ k = strlen (g_tmp_dir);
+ if (g_tmp_dir[k-1] == G_DIR_SEPARATOR)
+ g_tmp_dir[k-1] = '\0';
+ }
+#endif
+
+ if (!g_tmp_dir)
+ {
+#ifndef G_OS_WIN32
+ g_tmp_dir = g_strdup ("/tmp");
+#else /* G_OS_WIN32 */
+ g_tmp_dir = g_strdup ("C:\\");
+#endif /* G_OS_WIN32 */
+ }
+
+ if (!g_home_dir)
+ g_home_dir = g_strdup (g_getenv ("HOME"));
+
+#ifdef G_OS_WIN32
+ if (!g_home_dir)
+ {
+ /* The official way to specify a home directory on NT is
+ * the HOMEDRIVE and HOMEPATH environment variables.
+ *
+ * This is inside #ifdef G_OS_WIN32 because with the cygwin dll,
+ * HOME should be a POSIX style pathname.
+ */
+
+ if (getenv ("HOMEDRIVE") != NULL && getenv ("HOMEPATH") != NULL)
+ {
+ gchar *homedrive, *homepath;
+
+ homedrive = g_strdup (g_getenv ("HOMEDRIVE"));
+ homepath = g_strdup (g_getenv ("HOMEPATH"));
+
+ g_home_dir = g_strconcat (homedrive, homepath, NULL);
+ g_free (homedrive);
+ g_free (homepath);
+ }
+ }
+#endif /* G_OS_WIN32 */
+
+#ifdef HAVE_PWD_H
+ {
+ struct passwd *pw = NULL;
+ gpointer buffer = NULL;
+
+# ifdef HAVE_GETPWUID_R
+ struct passwd pwd;
+# ifdef _SC_GETPW_R_SIZE_MAX
+ /* This reurns the maximum length */
+ guint bufsize = sysconf (_SC_GETPW_R_SIZE_MAX);
+# else /* _SC_GETPW_R_SIZE_MAX */
+ guint bufsize = 64;
+# endif /* _SC_GETPW_R_SIZE_MAX */
+ gint error;
+
+ do
+ {
+ g_free (buffer);
+ buffer = g_malloc (bufsize);
+ errno = 0;
+
+# ifdef HAVE_GETPWUID_R_POSIX
+ error = getpwuid_r (getuid (), &pwd, buffer, bufsize, &pw);
+ error = error < 0 ? errno : error;
+# else /* !HAVE_GETPWUID_R_POSIX */
+# ifdef _AIX
+ error = getpwuid_r (getuid (), &pwd, buffer, bufsize);
+ pw = error == 0 ? &pwd : NULL;
+# else /* !_AIX */
+ pw = getpwuid_r (getuid (), &pwd, buffer, bufsize);
+ error = pw ? 0 : errno;
+# endif /* !_AIX */
+# endif /* !HAVE_GETPWUID_R_POSIX */
+
+ if (!pw)
+ {
+ /* we bail out prematurely if the user id can't be found
+ * (should be pretty rare case actually), or if the buffer
+ * should be sufficiently big and lookups are still not
+ * successfull.
+ */
+ if (error == 0 || error == ENOENT)
+ {
+ g_warning ("getpwuid_r(): failed due to unknown user id (%lu)",
+ (gulong) getuid ());
+ break;
+ }
+ if (bufsize > 32 * 1024)
+ {
+ g_warning ("getpwuid_r(): failed due to: %s.",
+ g_strerror (error));
+ break;
+ }
+
+ bufsize *= 2;
+ }
+ }
+ while (!pw);
+# endif /* !HAVE_GETPWUID_R */
+
+ if (!pw)
+ {
+ setpwent ();
+ pw = getpwuid (getuid ());
+ endpwent ();
+ }
+ if (pw)
+ {
+ g_user_name = g_strdup (pw->pw_name);
+ g_real_name = g_strdup (pw->pw_gecos);
+ if (!g_home_dir)
+ g_home_dir = g_strdup (pw->pw_dir);
+ }
+ g_free (buffer);
+ }
- g_home_dir = g_strdup (getenv ("HOME"));
+#else /* !HAVE_PWD_H */
- setpwent ();
- pw = getpwuid (getuid ());
- endpwent ();
+# ifdef G_OS_WIN32
+ {
+ guint len = 17;
+ gchar buffer[17];
+
+ if (GetUserName ((LPTSTR) buffer, (LPDWORD) &len))
+ {
+ g_user_name = g_strdup (buffer);
+ g_real_name = g_strdup (buffer);
+ }
+ }
+# endif /* G_OS_WIN32 */
- if (pw)
+#endif /* !HAVE_PWD_H */
+
+#ifdef __EMX__
+ /* change '\\' in %HOME% to '/' */
+ g_strdelimit (g_home_dir, "\\",'/');
+#endif
+ if (!g_user_name)
+ g_user_name = g_strdup ("somebody");
+ if (!g_real_name)
+ g_real_name = g_strdup ("Unknown");
+ else
{
- g_user_name = g_strdup (pw->pw_name);
- g_real_name = g_strdup (pw->pw_gecos);
- if (!g_home_dir)
- g_home_dir = g_strdup (pw->pw_dir);
+ gchar *p;
+
+ for (p = g_real_name; *p; p++)
+ if (*p == ',')
+ {
+ *p = 0;
+ p = g_strdup (g_real_name);
+ g_free (g_real_name);
+ g_real_name = p;
+ break;
+ }
}
}
}
gchar*
g_get_user_name (void)
{
+ G_LOCK (g_utils_global);
if (!g_tmp_dir)
g_get_any_init ();
+ G_UNLOCK (g_utils_global);
return g_user_name;
}
gchar*
g_get_real_name (void)
{
+ G_LOCK (g_utils_global);
if (!g_tmp_dir)
g_get_any_init ();
-
+ G_UNLOCK (g_utils_global);
+
return g_real_name;
}
+/* Return the home directory of the user. If there is a HOME
+ * environment variable, its value is returned, otherwise use some
+ * system-dependent way of finding it out. If no home directory can be
+ * deduced, return NULL.
+ */
+
gchar*
g_get_home_dir (void)
{
+ G_LOCK (g_utils_global);
if (!g_tmp_dir)
g_get_any_init ();
+ G_UNLOCK (g_utils_global);
return g_home_dir;
}
+/* Return a directory to be used to store temporary files. This is the
+ * value of the TMPDIR, TMP or TEMP environment variables (they are
+ * checked in that order). If none of those exist, use P_tmpdir from
+ * stdio.h. If that isn't defined, return "/tmp" on POSIXly systems,
+ * and C:\ on Windows.
+ */
+
gchar*
g_get_tmp_dir (void)
{
+ G_LOCK (g_utils_global);
if (!g_tmp_dir)
g_get_any_init ();
+ G_UNLOCK (g_utils_global);
return g_tmp_dir;
}
gchar*
g_get_prgname (void)
{
- return g_prgname;
+ gchar* retval;
+
+ G_LOCK (g_utils_global);
+ retval = g_prgname;
+ G_UNLOCK (g_utils_global);
+
+ return retval;
}
void
g_set_prgname (const gchar *prgname)
{
- gchar *c = g_prgname;
-
+ gchar *c;
+
+ G_LOCK (g_utils_global);
+ c = g_prgname;
g_prgname = g_strdup (prgname);
g_free (c);
+ G_UNLOCK (g_utils_global);
}
guint
-g_direct_hash(gconstpointer v)
+g_direct_hash (gconstpointer v)
{
return GPOINTER_TO_UINT (v);
}
gint
-g_direct_equal(gconstpointer v, gconstpointer v2)
+g_direct_equal (gconstpointer v1,
+ gconstpointer v2)
{
- return GPOINTER_TO_UINT (v) == GPOINTER_TO_UINT (v2);
+ return v1 == v2;
}
gint
-g_int_equal (gconstpointer v, gconstpointer v2)
+g_int_equal (gconstpointer v1,
+ gconstpointer v2)
{
- return *((const gint*) v) == *((const gint*) v2);
+ return *((const gint*) v1) == *((const gint*) v2);
}
guint
{
return *(const gint*) v;
}
+
+/**
+ * g_get_codeset:
+ *
+ * Get the codeset for the current locale.
+ *
+ * Return value: a newly allocated string containing the name
+ * of the codeset. This string must be freed with g_free().
+ **/
+gchar *
+g_get_codeset (void)
+{
+#ifdef HAVE_CODESET
+ char *result = nl_langinfo (CODESET);
+ return g_strdup (result);
+#else
+#ifndef G_OS_WIN32
+ /* FIXME: Do something more intelligent based on setlocale (LC_CTYPE, NULL)
+ */
+ return g_strdup ("ISO-8859-1");
+#else
+ /* On Win32 we always use UTF-8. At least in GDK. SO should we
+ * therefore return that?
+ */
+ return g_strdup ("UTF-8");
+#endif
+#endif
+}
projects / platform / upstream / glib.git / blobdiff