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Diffstat (limited to 'e-util/e-mktemp.c')
| -rw-r--r-- | e-util/e-mktemp.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/e-util/e-mktemp.c b/e-util/e-mktemp.c new file mode 100644 index 0000000000..8164bc145e --- /dev/null +++ b/e-util/e-mktemp.c @@ -0,0 +1,231 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* + * Authors: Jeffrey Stedfast <fejj@ximian.com> + * + * Copyright 2001 Ximian, Inc. (www.ximian.com) + * + * 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., 59 Temple Street #330, Boston, MA 02111-1307, USA. + * + */ + + +#include "e-mktemp.h" + +#include <config.h> + +#include <glib.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <stdlib.h> +#include <fcntl.h> +#include <unistd.h> +#include <dirent.h> + +#ifdef ENABLE_THREADS +#include <pthread.h> +#endif + + +static gboolean initialized = FALSE; +static GSList *temp_files = NULL; +static GSList *temp_dirs = NULL; +#ifdef ENABLE_THREADS +static pthread_mutex_t temp_files_lock = PTHREAD_MUTEX_INITIALIZER; +static pthread_mutex_t temp_dirs_lock = PTHREAD_MUTEX_INITIALIZER; +#define TEMP_FILES_LOCK() pthread_mutex_lock (&temp_files_lock) +#define TEMP_FILES_UNLOCK() pthread_mutex_unlock (&temp_files_lock) +#define TEMP_DIRS_LOCK() pthread_mutex_lock (&temp_dirs_lock) +#define TEMP_DIRS_UNLOCK() pthread_mutex_unlock (&temp_dirs_lock) +#else +#define TEMP_FILES_LOCK() +#define TEMP_FILES_UNLOCK() +#define TEMP_DIRS_LOCK() +#define TEMP_DIRS_UNLOCK() +#endif /* ENABLE_THREADS */ + + +static GString * +get_path (gboolean make) +{ + GString *path; + + path = g_string_new ("/tmp/evolution-"); + g_string_sprintfa (path, "%d-%d", getuid (), getpid ()); + + if (make) + mkdir (path->str, S_IRWXU); + + return path; +} + +static void +e_mktemp_cleanup (void) +{ + GString *path; + GSList *node; + + TEMP_FILES_LOCK (); + if (temp_files) { + node = temp_files; + while (node) { + unlink (node->data); + g_free (node->data); + node = node->next; + } + g_slist_free (temp_files); + temp_files = NULL; + } + TEMP_FILES_UNLOCK (); + + TEMP_DIRS_LOCK (); + if (temp_dirs) { + node = temp_dirs; + while (node) { + /* perform the equivalent of a rm -rf */ + struct dirent *dent; + DIR *dir; + + /* first empty out this directory of it's files... */ + dir = opendir (node->data); + while ((dent = readdir (dir)) != NULL) { + /* yea...so if we contain + subdirectories this won't work, but + it shouldn't so we won't + bother caring... */ + if (strcmp (dent->d_name, ".") && strcmp (dent->d_name, "..")) + unlink (dent->d_name); + } + closedir (dir); + + /* ...then rmdir the directory */ + rmdir (node->data); + g_free (node->data); + node = node->next; + } + g_slist_free (temp_dirs); + temp_dirs = NULL; + } + TEMP_DIRS_UNLOCK (); + + path = get_path (FALSE); + rmdir (path->str); + + g_string_free (path, TRUE); +} + + +const char * +e_mktemp (const char *template) +{ + GString *path; + char *ret; + + path = get_path (TRUE); + if (!path) + return NULL; + + g_string_append_c (path, '/'); + if (template) + g_string_append (path, template); + else + g_string_append (path, "unknown-XXXXXX"); + + ret = mktemp (path->str); + if (ret) { + TEMP_FILES_LOCK (); + if (!initialized) + g_atexit (e_mktemp_cleanup); + temp_files = g_slist_prepend (temp_files, ret); + g_string_free (path, FALSE); + TEMP_FILES_UNLOCK (); + } else { + g_string_free (path, TRUE); + } + + return ret; +} + + +int +e_mkstemp (const char *template) +{ + GString *path; + int fd; + + path = get_path (TRUE); + if (!path) + return -1; + + g_string_append_c (path, '/'); + if (template) + g_string_append (path, template); + else + g_string_append (path, "unknown-XXXXXX"); + + fd = mkstemp (path->str); + if (fd != -1) { + TEMP_FILES_LOCK (); + if (!initialized) + g_atexit (e_mktemp_cleanup); + temp_files = g_slist_prepend (temp_files, path->str); + g_string_free (path, FALSE); + TEMP_FILES_UNLOCK (); + } else { + g_string_free (path, TRUE); + } + + return fd; +} + + +const char * +e_mkdtemp (const char *template) +{ + GString *path; + char *tmpdir; + + path = get_path (TRUE); + if (!path) + return NULL; + + g_string_append_c (path, '/'); + if (template) + g_string_append (path, template); + else + g_string_append (path, "unknown-XXXXXX"); + +#ifdef HAVE_MKDTEMP + tmpdir = mkdtemp (path->str); +#else + tmpdir = mktemp (path->str); + if (tmpdir) { + if (mkdir (tmpdir, S_IRWXU) == -1) + tmpdir = NULL; + } +#endif + + if (tmpdir) { + TEMP_DIRS_LOCK (); + if (!initialized) + g_atexit (e_mktemp_cleanup); + temp_dirs = g_slist_prepend (temp_dirs, tmpdir); + g_string_free (path, FALSE); + TEMP_DIRS_UNLOCK (); + } else { + g_string_free (path, TRUE); + } + + return tmpdir; +} |