2 * Portable Utility Functions
5 * Miguel de Icaza (miguel@novell.com)
7 * (C) 2006 Novell, Inc.
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11 * "Software"), to deal in the Software without restriction, including
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14 * permit persons to whom the Software is furnished to do so, subject to
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17 * The above copyright notice and this permission notice shall be
18 * included in all copies or substantial portions of the Software.
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26 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 #include <sys/types.h>
38 g_build_path (const gchar *separator, const gchar *first_element, ...)
41 const char *s, *p, *next;
45 g_return_val_if_fail (separator != NULL, NULL);
46 g_return_val_if_fail (first_element != NULL, NULL);
48 result = g_string_sized_new (48);
50 slen = strlen (separator);
52 va_start (args, first_element);
53 for (s = first_element; s != NULL; s = next){
54 next = va_arg (args, char *);
57 if (next && p - slen > s){
58 for (; strncmp (p-slen, separator, slen) == 0; ){
62 g_string_append_len (result, s, p - s);
65 g_string_append (result, separator);
67 for (; strncmp (next, separator, slen) == 0; )
73 return g_string_free (result, FALSE);
77 g_path_get_dirname (const gchar *filename)
81 g_return_val_if_fail (filename != NULL, NULL);
83 p = strrchr (filename, G_DIR_SEPARATOR);
87 r = g_malloc (count + 1);
88 strncpy (r, filename, count);
95 g_path_get_basename (const char *filename)
98 g_return_val_if_fail (filename != NULL, NULL);
100 /* Empty filename -> . */
102 return g_strdup (".");
104 /* No separator -> filename */
105 r = strrchr (filename, G_DIR_SEPARATOR);
107 return g_strdup (filename);
109 /* Trailing slash, remove component */
111 char *copy = g_strdup (filename);
112 copy [r-filename] = 0;
113 r = strrchr (copy, G_DIR_SEPARATOR);
117 return g_strdup ("/");
119 r = g_strdup (&r[1]);
124 return g_strdup (&r[1]);
128 g_path_is_absolute (const char *filename)
130 g_return_val_if_fail (filename != NULL, FALSE);
131 return (*filename == '/');
135 g_find_program_in_path (const gchar *program)
137 char *p = g_strdup (getenv ("PATH"));
139 gchar *curdir = NULL;
142 g_return_val_if_fail (program != NULL, NULL);
144 if (x == NULL || *x == '\0') {
145 curdir = g_get_current_dir ();
149 while ((l = strtok_r (x, G_SEARCHPATH_SEPARATOR_S, &save)) != NULL){
153 probe_path = g_build_path (G_DIR_SEPARATOR_S, l, program, NULL);
154 if (access (probe_path, X_OK) == 0){
167 g_get_current_dir (void)
170 char *buffer = NULL, *r;
174 buffer = g_realloc (buffer, s);
175 r = getcwd (buffer, s);
176 fail = (r == NULL && errno == ERANGE);
185 static pthread_mutex_t home_lock = PTHREAD_MUTEX_INITIALIZER;
186 static char *home_dir;
188 /* Give preference to /etc/passwd than HOME */
190 g_get_home_dir (void)
192 if (home_dir == NULL){
195 pthread_mutex_lock (&home_lock);
196 if (home_dir == NULL){
197 struct passwd pwbuf, *track;
204 while (getpwent_r (&pwbuf, buf, sizeof (buf), &track) == 0){
205 if (pwbuf.pw_uid == uid){
206 home_dir = g_strdup (pwbuf.pw_dir);
211 if (home_dir == NULL)
212 home_dir = getenv ("HOME");
213 pthread_mutex_unlock (&home_lock);
219 static char *tmp_dir;
220 static pthread_mutex_t tmp_lock = PTHREAD_MUTEX_INITIALIZER;
225 if (tmp_dir == NULL){
226 pthread_mutex_lock (&tmp_lock);
227 if (tmp_dir == NULL){
228 tmp_dir = getenv ("TMPDIR");
229 if (tmp_dir == NULL){
230 tmp_dir = getenv ("TMP");
231 if (tmp_dir == NULL){
232 tmp_dir = getenv ("TEMP");
238 pthread_mutex_unlock (&tmp_lock);
244 g_get_user_name (void)
246 return getenv ("USER");
252 g_set_prgname (const gchar *prgname)
254 name = g_strdup (prgname);