core: move directory/file functions from wee-util.c to wee-dir.c (issue #1285)

12 files changed, 587 insertions, 522 deletions

diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index bbeaa9ce4..6b02d9404 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -30,6 +30,7 @@ set(LIB_CORE_SRC
   wee-config-file.c wee-config-file.h
   wee-crypto.c wee-crypto.h
   wee-debug.c wee-debug.h
+  wee-dir.c wee-dir.h
   wee-eval.c wee-eval.h
   wee-hashtable.c wee-hashtable.h
   wee-hdata.c wee-hdata.h
diff --git a/src/core/Makefile.am b/src/core/Makefile.am
index 29f7b2c61..0dcdc2812 100644
--- a/src/core/Makefile.am
+++ b/src/core/Makefile.am
@@ -41,6 +41,8 @@ lib_weechat_core_a_SOURCES = weechat.c \
                              wee-crypto.h \
                              wee-debug.c \
                              wee-debug.h \
+                             wee-dir.c \
+                             wee-dir.h \
                              wee-eval.c \
                              wee-eval.h \
                              wee-hashtable.c \
diff --git a/src/core/wee-command.c b/src/core/wee-command.c
index cd85e8173..fba0743fb 100644
--- a/src/core/wee-command.c
+++ b/src/core/wee-command.c
@@ -46,6 +46,7 @@
 #include "wee-config.h"
 #include "wee-config-file.h"
 #include "wee-debug.h"
+#include "wee-dir.h"
 #include "wee-eval.h"
 #include "wee-hashtable.h"
 #include "wee-hdata.h"
@@ -4755,7 +4756,7 @@ COMMAND_CALLBACK(plugin)
                                         | WEECHAT_STRING_SPLIT_COLLAPSE_SEPS,
                                         0, &plugin_argc);
         }
-        full_name = util_search_full_lib_name (argv[2], "plugins");
+        full_name = dir_search_full_lib_name (argv[2], "plugins");
         plugin_load (full_name, 1, plugin_argc, plugin_argv);
         if (full_name)
             free (full_name);
diff --git a/src/core/wee-completion.c b/src/core/wee-completion.c
index a13c2c3f3..7f210dbd4 100644
--- a/src/core/wee-completion.c
+++ b/src/core/wee-completion.c
@@ -36,6 +36,7 @@
 #include "weechat.h"
 #include "wee-arraylist.h"
 #include "wee-config.h"
+#include "wee-dir.h"
 #include "wee-eval.h"
 #include "wee-hashtable.h"
 #include "wee-hook.h"
@@ -43,7 +44,6 @@
 #include "wee-proxy.h"
 #include "wee-secure.h"
 #include "wee-string.h"
-#include "wee-util.h"
 #include "../gui/gui-completion.h"
 #include "../gui/gui-bar.h"
 #include "../gui/gui-bar-window.h"
@@ -1000,9 +1000,9 @@ completion_list_add_plugins_installed_cb (const void *pointer, void *data,
         if (dir_name)
         {
             snprintf (dir_name, length, "%s/plugins", extra_libdir);
-            util_exec_on_files (dir_name, 1, 0,
-                                &completion_list_add_plugins_installed_exec_cb,
-                                completion);
+            dir_exec_on_files (dir_name, 1, 0,
+                               &completion_list_add_plugins_installed_exec_cb,
+                               completion);
             free (dir_name);
         }
     }
@@ -1015,9 +1015,9 @@ completion_list_add_plugins_installed_cb (const void *pointer, void *data,
                                              NULL, NULL, NULL);
         if (plugin_path)
         {
-            util_exec_on_files (plugin_path, 1, 0,
-                                &completion_list_add_plugins_installed_exec_cb,
-                                completion);
+            dir_exec_on_files (plugin_path, 1, 0,
+                               &completion_list_add_plugins_installed_exec_cb,
+                               completion);
             free (plugin_path);
         }
     }
@@ -1028,9 +1028,9 @@ completion_list_add_plugins_installed_cb (const void *pointer, void *data,
     if (dir_name)
     {
         snprintf (dir_name, length, "%s/plugins", WEECHAT_LIBDIR);
-        util_exec_on_files (dir_name, 1, 0,
-                            &completion_list_add_plugins_installed_exec_cb,
-                            completion);
+        dir_exec_on_files (dir_name, 1, 0,
+                           &completion_list_add_plugins_installed_exec_cb,
+                           completion);
         free (dir_name);
     }
 
diff --git a/src/core/wee-dir.c b/src/core/wee-dir.c
new file mode 100644
index 000000000..2eb3bd7d7
--- /dev/null
+++ b/src/core/wee-dir.c
@@ -0,0 +1,514 @@
+/*
+ * wee-dir.c - directory/file functions
+ *
+ * Copyright (C) 2003-2021 Sébastien Helleu <flashcode@flashtux.org>
+ *
+ * This file is part of WeeChat, the extensible chat client.
+ *
+ * WeeChat 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * WeeChat 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 WeeChat.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/* for P_tmpdir in stdio.h */
+#ifndef __USE_XOPEN
+#define __USE_XOPEN
+#endif
+
+/* for nftw() */
+#define _XOPEN_SOURCE 700
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <ftw.h>
+
+#include "weechat.h"
+#include "wee-config.h"
+#include "wee-string.h"
+
+
+/*
+ * Returns the path to a temporary directory, the first valid directory in
+ * this list:
+ *   - content of environment variable "TMPDIR"
+ *   - P_tmpdir (from stdio.h)
+ *   - content of environment variable "HOME" (user home directory)
+ *   - "." (current directory)
+ */
+
+char *
+dir_get_temp_dir()
+{
+    char *tmpdir;
+    struct stat buf;
+    int rc;
+
+    /* get directory from $TMPDIR */
+    tmpdir = getenv ("TMPDIR");
+    if (tmpdir && tmpdir[0])
+    {
+        rc = stat (tmpdir, &buf);
+        if ((rc == 0) && S_ISDIR(buf.st_mode))
+            return strdup (tmpdir);
+    }
+
+    /* get directory from P_tmpdir */
+    rc = stat (P_tmpdir, &buf);
+    if ((rc == 0) && S_ISDIR(buf.st_mode))
+        return strdup (P_tmpdir);
+
+    /* get directory from $HOME */
+    tmpdir = getenv ("HOME");
+    if (tmpdir && tmpdir[0])
+    {
+        rc = stat (tmpdir, &buf);
+        if ((rc == 0) && S_ISDIR(buf.st_mode))
+            return strdup (tmpdir);
+    }
+
+    /* fallback on current directory */
+    return strdup (".");
+}
+
+/*
+ * Creates a directory in WeeChat home.
+ *
+ * Returns:
+ *   1: OK
+ *   0: error
+ */
+
+int
+dir_mkdir_home (const char *directory, int mode)
+{
+    char *dir_name;
+    int dir_length;
+
+    if (!directory)
+        return 0;
+
+    /* build directory, adding WeeChat home */
+    dir_length = strlen (weechat_home) + strlen (directory) + 2;
+    dir_name = malloc (dir_length);
+    if (!dir_name)
+        return 0;
+
+    snprintf (dir_name, dir_length, "%s/%s", weechat_home, directory);
+
+    if (mkdir (dir_name, mode) < 0)
+    {
+        if (errno != EEXIST)
+        {
+            free (dir_name);
+            return 0;
+        }
+    }
+
+    free (dir_name);
+    return 1;
+}
+
+/*
+ * Creates a directory.
+ *
+ * Returns:
+ *   1: OK
+ *   0: error
+ */
+
+int
+dir_mkdir (const char *directory, int mode)
+{
+    if (!directory)
+        return 0;
+
+    if (mkdir (directory, mode) < 0)
+    {
+        if (errno != EEXIST)
+            return 0;
+    }
+
+    return 1;
+}
+
+/*
+ * Creates a directory and makes parent directories as needed.
+ *
+ * Returns:
+ *   1: OK
+ *   0: error
+ */
+
+int
+dir_mkdir_parents (const char *directory, int mode)
+{
+    char *string, *ptr_string, *pos_sep;
+    struct stat buf;
+    int rc;
+
+    if (!directory)
+        return 0;
+
+    string = strdup (directory);
+    if (!string)
+        return 0;
+
+    ptr_string = string;
+    while (ptr_string[0] == DIR_SEPARATOR_CHAR)
+    {
+        ptr_string++;
+    }
+
+    while (ptr_string && ptr_string[0])
+    {
+        pos_sep = strchr (ptr_string, DIR_SEPARATOR_CHAR);
+        if (pos_sep)
+            pos_sep[0] = '\0';
+
+        rc = stat (string, &buf);
+        if ((rc < 0) || !S_ISDIR(buf.st_mode))
+        {
+            /* try to create directory */
+            if (!dir_mkdir (string, mode))
+            {
+                free (string);
+                return 0;
+            }
+        }
+
+        if (pos_sep)
+        {
+            pos_sep[0] = DIR_SEPARATOR_CHAR;
+            ptr_string = pos_sep + 1;
+        }
+        else
+            ptr_string = NULL;
+    }
+
+    free (string);
+
+    return 1;
+}
+
+/*
+ * Unlinks a file or directory; callback called by function dir_rmtree().
+ *
+ * Returns the return code of remove():
+ *   0: OK
+ *   -1: error
+ */
+
+int
+dir_unlink_cb (const char *fpath, const struct stat *sb, int typeflag,
+               struct FTW *ftwbuf)
+{
+    /* make C compiler happy */
+    (void) sb;
+    (void) typeflag;
+    (void) ftwbuf;
+
+    return remove (fpath);
+}
+
+/*
+ * Removes a directory and all files inside recursively.
+ *
+ * Returns:
+ *   1: OK
+ *   0: error
+ */
+
+int
+dir_rmtree (const char *directory)
+{
+    int rc;
+
+    if (!directory)
+        return 0;
+
+    rc = nftw (directory, dir_unlink_cb, 64, FTW_DEPTH | FTW_PHYS);
+
+    return (rc == 0) ? 1 : 0;
+}
+
+/*
+ * Finds files in a directory and executes a function on each file.
+ */
+
+void
+dir_exec_on_files (const char *directory, int recurse_subdirs,
+                    int hidden_files,
+                    void (*callback)(void *data, const char *filename),
+                    void *callback_data)
+{
+    char complete_filename[PATH_MAX];
+    DIR *dir;
+    struct dirent *entry;
+    struct stat statbuf;
+
+    if (!directory || !callback)
+        return;
+
+    dir = opendir (directory);
+    if (dir)
+    {
+        while ((entry = readdir (dir)))
+        {
+            if (hidden_files || (entry->d_name[0] != '.'))
+            {
+                snprintf (complete_filename, sizeof (complete_filename),
+                          "%s/%s", directory, entry->d_name);
+                lstat (complete_filename, &statbuf);
+                if (S_ISDIR(statbuf.st_mode))
+                {
+                    if (recurse_subdirs
+                        && (strcmp (entry->d_name, ".") != 0)
+                        && (strcmp (entry->d_name, "..") != 0))
+                    {
+                        dir_exec_on_files (complete_filename, 1, hidden_files,
+                                           callback, callback_data);
+                    }
+                }
+                else
+                {
+                    (*callback) (callback_data, complete_filename);
+                }
+            }
+        }
+        closedir (dir);
+    }
+}
+
+/*
+ * Searches for the full name of a WeeChat library with name and extension
+ * (searches first in WeeChat user's dir, then WeeChat global lib directory).
+ *
+ * Returns name of library found, NULL if not found.
+ *
+ * Note: result must be freed after use (if not NULL).
+ */
+
+char *
+dir_search_full_lib_name_ext (const char *filename, const char *extension,
+                              const char *plugins_dir)
+{
+    char *name_with_ext, *final_name, *extra_libdir;
+    int length;
+    struct stat st;
+
+    length = strlen (filename) + strlen (extension) + 1;
+    name_with_ext = malloc (length);
+    if (!name_with_ext)
+        return NULL;
+    snprintf (name_with_ext, length,
+              "%s%s",
+              filename,
+              (strchr (filename, '.')) ? "" : extension);
+
+    /* try libdir from environment variable WEECHAT_EXTRA_LIBDIR */
+    extra_libdir = getenv (WEECHAT_EXTRA_LIBDIR);
+    if (extra_libdir && extra_libdir[0])
+    {
+        length = strlen (extra_libdir) + strlen (name_with_ext) +
+            strlen (plugins_dir) + 16;
+        final_name = malloc (length);
+        if (!final_name)
+        {
+            free (name_with_ext);
+            return NULL;
+        }
+        snprintf (final_name, length,
+                  "%s%s%s%s%s",
+                  extra_libdir,
+                  DIR_SEPARATOR,
+                  plugins_dir,
+                  DIR_SEPARATOR,
+                  name_with_ext);
+        if ((stat (final_name, &st) == 0) && (st.st_size > 0))
+        {
+            free (name_with_ext);
+            return final_name;
+        }
+        free (final_name);
+    }
+
+    /* try WeeChat user's dir */
+    length = strlen (weechat_home) + strlen (name_with_ext) +
+        strlen (plugins_dir) + 16;
+    final_name = malloc (length);
+    if (!final_name)
+    {
+        free (name_with_ext);
+        return NULL;
+    }
+    snprintf (final_name, length,
+              "%s%s%s%s%s",
+              weechat_home,
+              DIR_SEPARATOR,
+              plugins_dir,
+              DIR_SEPARATOR,
+              name_with_ext);
+    if ((stat (final_name, &st) == 0) && (st.st_size > 0))
+    {
+        free (name_with_ext);
+        return final_name;
+    }
+    free (final_name);
+
+    /* try WeeChat global lib dir */
+    length = strlen (WEECHAT_LIBDIR) + strlen (name_with_ext) +
+        strlen (plugins_dir) + 16;
+    final_name = malloc (length);
+    if (!final_name)
+    {
+        free (name_with_ext);
+        return NULL;
+    }
+    snprintf (final_name, length,
+              "%s%s%s%s%s",
+              WEECHAT_LIBDIR,
+              DIR_SEPARATOR,
+              plugins_dir,
+              DIR_SEPARATOR,
+              name_with_ext);
+    if ((stat (final_name, &st) == 0) && (st.st_size > 0))
+    {
+        free (name_with_ext);
+        return final_name;
+    }
+    free (final_name);
+
+    free (name_with_ext);
+
+    return NULL;
+}
+
+/*
+ * Searches for the full name of a WeeChat library with name.
+ *
+ * All extensions listed in option "weechat.plugin.extension" are tested.
+ *
+ * Note: result must be freed after use (if not NULL).
+ */
+
+char *
+dir_search_full_lib_name (const char *filename, const char *plugins_dir)
+{
+    char *filename2, *full_name;
+    int i;
+
+    /* expand home in filename */
+    filename2 = string_expand_home (filename);
+    if (!filename2)
+        return NULL;
+
+    /* if full path, return it */
+    if (strchr (filename2, '/') || strchr (filename2, '\\'))
+        return filename2;
+
+    if (config_plugin_extensions)
+    {
+        for (i = 0; i < config_num_plugin_extensions; i++)
+        {
+            full_name = dir_search_full_lib_name_ext (
+                filename2,
+                config_plugin_extensions[i],
+                plugins_dir);
+            if (full_name)
+            {
+                free (filename2);
+                return full_name;
+            }
+        }
+    }
+    else
+    {
+        full_name = dir_search_full_lib_name_ext (filename2, "", plugins_dir);
+        if (full_name)
+        {
+            free (filename2);
+            return full_name;
+        }
+    }
+
+    free (filename2);
+
+    return strdup (filename);
+}
+
+/*
+ * Reads content of a file.
+ *
+ * Returns an allocated buffer with the content of file, NULL if error.
+ *
+ * Note: result must be freed after use.
+ */
+
+char *
+dir_file_get_content (const char *filename)
+{
+    char *buffer, *buffer2;
+    FILE *f;
+    size_t count, fp;
+
+    if (!filename)
+        return NULL;
+
+    buffer = NULL;
+    fp = 0;
+
+    f = fopen (filename, "r");
+    if (!f)
+        goto error;
+
+    while (!feof (f))
+    {
+        if (fp > SIZE_MAX - (1024 * sizeof (char)))
+            goto error;
+        buffer2 = (char *) realloc (buffer, (fp + (1024 * sizeof (char))));
+        if (!buffer2)
+            goto error;
+        buffer = buffer2;
+        count = fread (&buffer[fp], sizeof (char), 1024, f);
+        if (count <= 0)
+            goto error;
+        fp += count;
+    }
+    if (fp > SIZE_MAX - sizeof (char))
+        goto error;
+    buffer2 = (char *) realloc (buffer, fp + sizeof (char));
+    if (!buffer2)
+        goto error;
+    buffer = buffer2;
+    buffer[fp] = '\0';
+    fclose (f);
+
+    return buffer;
+
+error:
+    if (buffer)
+	free (buffer);
+    if (f)
+	fclose (f);
+    return NULL;
+}
diff --git a/src/core/wee-dir.h b/src/core/wee-dir.h
new file mode 100644
index 000000000..fbbdf96a7
--- /dev/null
+++ b/src/core/wee-dir.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2003-2021 Sébastien Helleu <flashcode@flashtux.org>
+ *
+ * This file is part of WeeChat, the extensible chat client.
+ *
+ * WeeChat 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * WeeChat 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 WeeChat.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef WEECHAT_DIR_H
+#define WEECHAT_DIR_H
+
+extern char *dir_get_temp_dir();
+extern int dir_mkdir_home (const char *directory, int mode);
+extern int dir_mkdir (const char *directory, int mode);
+extern int dir_mkdir_parents (const char *directory, int mode);
+extern int dir_rmtree (const char *directory);
+extern void dir_exec_on_files (const char *directory, int recurse_subdirs,
+                               int hidden_files,
+                               void (*callback)(void *data,
+                                                const char *filename),
+                               void *callback_data);
+extern char *dir_search_full_lib_name (const char *filename,
+                                       const char *sys_directory);
+extern char *dir_file_get_content (const char *filename);
+
+#endif /* WEECHAT_DIR_H */
diff --git a/src/core/wee-signal.c b/src/core/wee-signal.c
index 0765decf0..c53fc5e31 100644
--- a/src/core/wee-signal.c
+++ b/src/core/wee-signal.c
@@ -25,6 +25,7 @@
 
 #include <stdlib.h>
 #include <string.h>
+#include <signal.h>
 
 #include "weechat.h"
 #include "wee-signal.h"
diff --git a/src/core/wee-upgrade.c b/src/core/wee-upgrade.c
index 26a6037ff..3d5967e1b 100644
--- a/src/core/wee-upgrade.c
+++ b/src/core/wee-upgrade.c
@@ -30,6 +30,7 @@
 
 #include "weechat.h"
 #include "wee-upgrade.h"
+#include "wee-dir.h"
 #include "wee-hook.h"
 #include "wee-infolist.h"
 #include "wee-secure-buffer.h"
@@ -924,9 +925,9 @@ upgrade_weechat_end ()
     long long time_diff;
 
     /* remove .upgrade files */
-    util_exec_on_files (weechat_home,
-                        0, 0,
-                        &upgrade_weechat_remove_file_cb, NULL);
+    dir_exec_on_files (weechat_home,
+                       0, 0,
+                       &upgrade_weechat_remove_file_cb, NULL);
 
     /* display message for end of /upgrade with duration */
     gettimeofday (&tv_now, NULL);
diff --git a/src/core/wee-util.c b/src/core/wee-util.c
index 61a095645..293bca097 100644
--- a/src/core/wee-util.c
+++ b/src/core/wee-util.c
@@ -19,35 +19,21 @@
  * along with WeeChat.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-/* for P_tmpdir in stdio.h */
-#ifndef __USE_XOPEN
-#define __USE_XOPEN
-#endif
-
-/* for nftw() */
-#define _XOPEN_SOURCE 700
-
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
 #include <stdlib.h>
 #include <stdio.h>
-#include <stdint.h>
 #include <errno.h>
 #include <string.h>
 #include <sys/types.h>
-#include <sys/stat.h>
 #include <sys/time.h>
 #ifdef HAVE_SYS_RESOURCE_H
 #include <sys/resource.h>
 #endif
-#include <unistd.h>
-#include <dirent.h>
-#include <signal.h>
 #include <ctype.h>
 #include <time.h>
-#include <ftw.h>
 
 #include "weechat.h"
 #include "wee-util.h"
@@ -430,471 +416,6 @@ util_parse_delay (const char *string_delay, long default_factor)
 }
 
 /*
- * Returns the path to a temporary directory, the first valid directory in
- * this list:
- *   - content of environment variable "TMPDIR"
- *   - P_tmpdir (from stdio.h)
- *   - content of environment variable "HOME" (user home directory)
- *   - "." (current directory)
- */
-
-char *
-util_get_temp_dir()
-{
-    char *tmpdir;
-    struct stat buf;
-    int rc;
-
-    /* get directory from $TMPDIR */
-    tmpdir = getenv ("TMPDIR");
-    if (tmpdir && tmpdir[0])
-    {
-        rc = stat (tmpdir, &buf);
-        if ((rc == 0) && S_ISDIR(buf.st_mode))
-            return strdup (tmpdir);
-    }
-
-    /* get directory from P_tmpdir */
-    rc = stat (P_tmpdir, &buf);
-    if ((rc == 0) && S_ISDIR(buf.st_mode))
-        return strdup (P_tmpdir);
-
-    /* get directory from $HOME */
-    tmpdir = getenv ("HOME");
-    if (tmpdir && tmpdir[0])
-    {
-        rc = stat (tmpdir, &buf);
-        if ((rc == 0) && S_ISDIR(buf.st_mode))
-            return strdup (tmpdir);
-    }
-
-    /* fallback on current directory */
-    return strdup (".");
-}
-
-/*
- * Creates a directory in WeeChat home.
- *
- * Returns:
- *   1: OK
- *   0: error
- */
-
-int
-util_mkdir_home (const char *directory, int mode)
-{
-    char *dir_name;
-    int dir_length;
-
-    if (!directory)
-        return 0;
-
-    /* build directory, adding WeeChat home */
-    dir_length = strlen (weechat_home) + strlen (directory) + 2;
-    dir_name = malloc (dir_length);
-    if (!dir_name)
-        return 0;
-
-    snprintf (dir_name, dir_length, "%s/%s", weechat_home, directory);
-
-    if (mkdir (dir_name, mode) < 0)
-    {
-        if (errno != EEXIST)
-        {
-            free (dir_name);
-            return 0;
-        }
-    }
-
-    free (dir_name);
-    return 1;
-}
-
-/*
- * Creates a directory.
- *
- * Returns:
- *   1: OK
- *   0: error
- */
-
-int
-util_mkdir (const char *directory, int mode)
-{
-    if (!directory)
-        return 0;
-
-    if (mkdir (directory, mode) < 0)
-    {
-        if (errno != EEXIST)
-            return 0;
-    }
-
-    return 1;
-}
-
-/*
- * Creates a directory and makes parent directories as needed.
- *
- * Returns:
- *   1: OK
- *   0: error
- */
-
-int
-util_mkdir_parents (const char *directory, int mode)
-{
-    char *string, *ptr_string, *pos_sep;
-    struct stat buf;
-    int rc;
-
-    if (!directory)
-        return 0;
-
-    string = strdup (directory);
-    if (!string)
-        return 0;
-
-    ptr_string = string;
-    while (ptr_string[0] == DIR_SEPARATOR_CHAR)
-    {
-        ptr_string++;
-    }
-
-    while (ptr_string && ptr_string[0])
-    {
-        pos_sep = strchr (ptr_string, DIR_SEPARATOR_CHAR);
-        if (pos_sep)
-            pos_sep[0] = '\0';
-
-        rc = stat (string, &buf);
-        if ((rc < 0) || !S_ISDIR(buf.st_mode))
-        {
-            /* try to create directory */
-            if (!util_mkdir (string, mode))
-            {
-                free (string);
-                return 0;
-            }
-        }
-
-        if (pos_sep)
-        {
-            pos_sep[0] = DIR_SEPARATOR_CHAR;
-            ptr_string = pos_sep + 1;
-        }
-        else
-            ptr_string = NULL;
-    }
-
-    free (string);
-
-    return 1;
-}
-
-/*
- * Unlinks a file or directory; callback called by function util_rmtree().
- *
- * Returns the return code of remove():
- *   0: OK
- *   -1: error
- */
-
-int
-util_unlink_cb (const char *fpath, const struct stat *sb, int typeflag,
-                struct FTW *ftwbuf)
-{
-    /* make C compiler happy */
-    (void) sb;
-    (void) typeflag;
-    (void) ftwbuf;
-
-    return remove (fpath);
-}
-
-/*
- * Removes a directory and all files inside recursively.
- *
- * Returns:
- *   1: OK
- *   0: error
- */
-
-int
-util_rmtree (const char *directory)
-{
-    int rc;
-
-    if (!directory)
-        return 0;
-
-    rc = nftw (directory, util_unlink_cb, 64, FTW_DEPTH | FTW_PHYS);
-
-    return (rc == 0) ? 1 : 0;
-}
-
-/*
- * Finds files in a directory and executes a function on each file.
- */
-
-void
-util_exec_on_files (const char *directory, int recurse_subdirs,
-                    int hidden_files,
-                    void (*callback)(void *data, const char *filename),
-                    void *callback_data)
-{
-    char complete_filename[PATH_MAX];
-    DIR *dir;
-    struct dirent *entry;
-    struct stat statbuf;
-
-    if (!directory || !callback)
-        return;
-
-    dir = opendir (directory);
-    if (dir)
-    {
-        while ((entry = readdir (dir)))
-        {
-            if (hidden_files || (entry->d_name[0] != '.'))
-            {
-                snprintf (complete_filename, sizeof (complete_filename),
-                          "%s/%s", directory, entry->d_name);
-                lstat (complete_filename, &statbuf);
-                if (S_ISDIR(statbuf.st_mode))
-                {
-                    if (recurse_subdirs
-                        && (strcmp (entry->d_name, ".") != 0)
-                        && (strcmp (entry->d_name, "..") != 0))
-                    {
-                        util_exec_on_files (complete_filename, 1, hidden_files,
-                                            callback, callback_data);
-                    }
-                }
-                else
-                {
-                    (*callback) (callback_data, complete_filename);
-                }
-            }
-        }
-        closedir (dir);
-    }
-}
-
-/*
- * Searches for the full name of a WeeChat library with name and extension
- * (searches first in WeeChat user's dir, then WeeChat global lib directory).
- *
- * Returns name of library found, NULL if not found.
- *
- * Note: result must be freed after use (if not NULL).
- */
-
-char *
-util_search_full_lib_name_ext (const char *filename, const char *extension,
-                               const char *plugins_dir)
-{
-    char *name_with_ext, *final_name, *extra_libdir;
-    int length;
-    struct stat st;
-
-    length = strlen (filename) + strlen (extension) + 1;
-    name_with_ext = malloc (length);
-    if (!name_with_ext)
-        return NULL;
-    snprintf (name_with_ext, length,
-              "%s%s",
-              filename,
-              (strchr (filename, '.')) ? "" : extension);
-
-    /* try libdir from environment variable WEECHAT_EXTRA_LIBDIR */
-    extra_libdir = getenv (WEECHAT_EXTRA_LIBDIR);
-    if (extra_libdir && extra_libdir[0])
-    {
-        length = strlen (extra_libdir) + strlen (name_with_ext) +
-            strlen (plugins_dir) + 16;
-        final_name = malloc (length);
-        if (!final_name)
-        {
-            free (name_with_ext);
-            return NULL;
-        }
-        snprintf (final_name, length,
-                  "%s%s%s%s%s",
-                  extra_libdir,
-                  DIR_SEPARATOR,
-                  plugins_dir,
-                  DIR_SEPARATOR,
-                  name_with_ext);
-        if ((stat (final_name, &st) == 0) && (st.st_size > 0))
-        {
-            free (name_with_ext);
-            return final_name;
-        }
-        free (final_name);
-    }
-
-    /* try WeeChat user's dir */
-    length = strlen (weechat_home) + strlen (name_with_ext) +
-        strlen (plugins_dir) + 16;
-    final_name = malloc (length);
-    if (!final_name)
-    {
-        free (name_with_ext);
-        return NULL;
-    }
-    snprintf (final_name, length,
-              "%s%s%s%s%s",
-              weechat_home,
-              DIR_SEPARATOR,
-              plugins_dir,
-              DIR_SEPARATOR,
-              name_with_ext);
-    if ((stat (final_name, &st) == 0) && (st.st_size > 0))
-    {
-        free (name_with_ext);
-        return final_name;
-    }
-    free (final_name);
-
-    /* try WeeChat global lib dir */
-    length = strlen (WEECHAT_LIBDIR) + strlen (name_with_ext) +
-        strlen (plugins_dir) + 16;
-    final_name = malloc (length);
-    if (!final_name)
-    {
-        free (name_with_ext);
-        return NULL;
-    }
-    snprintf (final_name, length,
-              "%s%s%s%s%s",
-              WEECHAT_LIBDIR,
-              DIR_SEPARATOR,
-              plugins_dir,
-              DIR_SEPARATOR,
-              name_with_ext);
-    if ((stat (final_name, &st) == 0) && (st.st_size > 0))
-    {
-        free (name_with_ext);
-        return final_name;
-    }
-    free (final_name);
-
-    free (name_with_ext);
-
-    return NULL;
-}
-
-/*
- * Searches for the full name of a WeeChat library with name.
- *
- * All extensions listed in option "weechat.plugin.extension" are tested.
- *
- * Note: result must be freed after use (if not NULL).
- */
-
-char *
-util_search_full_lib_name (const char *filename, const char *plugins_dir)
-{
-    char *filename2, *full_name;
-    int i;
-
-    /* expand home in filename */
-    filename2 = string_expand_home (filename);
-    if (!filename2)
-        return NULL;
-
-    /* if full path, return it */
-    if (strchr (filename2, '/') || strchr (filename2, '\\'))
-        return filename2;
-
-    if (config_plugin_extensions)
-    {
-        for (i = 0; i < config_num_plugin_extensions; i++)
-        {
-            full_name = util_search_full_lib_name_ext (filename2,
-                                                       config_plugin_extensions[i],
-                                                       plugins_dir);
-            if (full_name)
-            {
-                free (filename2);
-                return full_name;
-            }
-        }
-    }
-    else
-    {
-        full_name = util_search_full_lib_name_ext (filename2, "", plugins_dir);
-        if (full_name)
-        {
-            free (filename2);
-            return full_name;
-        }
-    }
-
-    free (filename2);
-
-    return strdup (filename);
-}
-
-/*
- * Reads content of a file.
- *
- * Returns an allocated buffer with the content of file, NULL if error.
- *
- * Note: result must be freed after use.
- */
-
-char *
-util_file_get_content (const char *filename)
-{
-    char *buffer, *buffer2;
-    FILE *f;
-    size_t count, fp;
-
-    if (!filename)
-        return NULL;
-
-    buffer = NULL;
-    fp = 0;
-
-    f = fopen (filename, "r");
-    if (!f)
-        goto error;
-
-    while (!feof (f))
-    {
-        if (fp > SIZE_MAX - (1024 * sizeof (char)))
-            goto error;
-        buffer2 = (char *) realloc (buffer, (fp + (1024 * sizeof (char))));
-        if (!buffer2)
-            goto error;
-        buffer = buffer2;
-        count = fread (&buffer[fp], sizeof (char), 1024, f);
-        if (count <= 0)
-            goto error;
-        fp += count;
-    }
-    if (fp > SIZE_MAX - sizeof (char))
-        goto error;
-    buffer2 = (char *) realloc (buffer, fp + sizeof (char));
-    if (!buffer2)
-        goto error;
-    buffer = buffer2;
-    buffer[fp] = '\0';
-    fclose (f);
-
-    return buffer;
-
-error:
-    if (buffer)
-	free (buffer);
-    if (f)
-	fclose (f);
-    return NULL;
-}
-
-/*
  * Gets version number (integer) with a version as string.
  *
  * Non-digit chars like "-dev" are ignored.
diff --git a/src/core/wee-util.h b/src/core/wee-util.h
index e7cf2a5cd..a2175a97d 100644
--- a/src/core/wee-util.h
+++ b/src/core/wee-util.h
@@ -50,21 +50,6 @@ extern void util_get_time_diff (time_t time1, time_t time2,
 
 extern long util_parse_delay (const char *string_delay, long default_factor);
 
-/* files/directories */
-extern char *util_get_temp_dir();
-extern int util_mkdir_home (const char *directory, int mode);
-extern int util_mkdir (const char *directory, int mode);
-extern int util_mkdir_parents (const char *directory, int mode);
-extern int util_rmtree (const char *directory);
-extern void util_exec_on_files (const char *directory, int recurse_subdirs,
-                                int hidden_files,
-                                void (*callback)(void *data,
-                                                 const char *filename),
-                                void *callback_data);
-extern char *util_search_full_lib_name (const char *filename,
-                                        const char *sys_directory);
-extern char *util_file_get_content (const char *filename);
-
 /* version */
 extern int util_version_number (const char *version);
 
diff --git a/src/core/weechat.c b/src/core/weechat.c
index 32456bdde..d29a4eac0 100644
--- a/src/core/weechat.c
+++ b/src/core/weechat.c
@@ -59,6 +59,7 @@
 #include "wee-completion.h"
 #include "wee-config.h"
 #include "wee-debug.h"
+#include "wee-dir.h"
 #include "wee-eval.h"
 #include "wee-hdata.h"
 #include "wee-hook.h"
@@ -435,7 +436,7 @@ weechat_create_home_dir ()
     /* temporary WeeChat home */
     if (weechat_home_temp)
     {
-        temp_dir = util_get_temp_dir ();
+        temp_dir = dir_get_temp_dir ();
         if (!temp_dir || !temp_dir[0])
         {
             string_fprintf (stderr,
@@ -515,7 +516,7 @@ weechat_create_home_dir ()
     }
 
     /* create home directory; error is fatal */
-    if (!util_mkdir (weechat_home, 0755))
+    if (!dir_mkdir (weechat_home, 0755))
     {
         string_fprintf (stderr,
                         _("Error: cannot create directory \"%s\"\n"),
@@ -697,7 +698,7 @@ weechat_shutdown (int return_code, int crash)
     if (!crash && weechat_home_delete_on_exit)
     {
         /* remove temporary home (only if not crashing) */
-        util_rmtree (weechat_home);
+        dir_rmtree (weechat_home);
     }
 
     if (weechat_argv0)
diff --git a/src/plugins/plugin.c b/src/plugins/plugin.c
index 58dd23ad6..3982e04c5 100644
--- a/src/plugins/plugin.c
+++ b/src/plugins/plugin.c
@@ -38,6 +38,7 @@
 #include "../core/weechat.h"
 #include "../core/wee-arraylist.h"
 #include "../core/wee-config.h"
+#include "../core/wee-dir.h"
 #include "../core/wee-eval.h"
 #include "../core/wee-hashtable.h"
 #include "../core/wee-hdata.h"
@@ -665,11 +666,11 @@ plugin_load (const char *filename, int init_plugin, int argc, char **argv)
         new_plugin->crypto_hash = &plugin_api_crypto_hash;
         new_plugin->crypto_hash_pbkdf2 = &plugin_api_crypto_hash_pbkdf2;
 
-        new_plugin->mkdir_home = &util_mkdir_home;
-        new_plugin->mkdir = &util_mkdir;
-        new_plugin->mkdir_parents = &util_mkdir_parents;
-        new_plugin->exec_on_files = &util_exec_on_files;
-        new_plugin->file_get_content = &util_file_get_content;
+        new_plugin->mkdir_home = &dir_mkdir_home;
+        new_plugin->mkdir = &dir_mkdir;
+        new_plugin->mkdir_parents = &dir_mkdir_parents;
+        new_plugin->exec_on_files = &dir_exec_on_files;
+        new_plugin->file_get_content = &dir_file_get_content;
 
         new_plugin->util_timeval_cmp = &util_timeval_cmp;
         new_plugin->util_timeval_diff = &util_timeval_diff;
@@ -1049,8 +1050,8 @@ plugin_auto_load (char *force_plugin_autoload,
                                              NULL, NULL, NULL);
         if (plugin_path)
         {
-            util_exec_on_files (plugin_path, 1, 0,
-                                &plugin_auto_load_file, &plugin_args);
+            dir_exec_on_files (plugin_path, 1, 0,
+                               &plugin_auto_load_file, &plugin_args);
             free (plugin_path);
         }
     }
@@ -1064,8 +1065,8 @@ plugin_auto_load (char *force_plugin_autoload,
             length = strlen (extra_libdir) + 16 + 1;
             dir_name = malloc (length);
             snprintf (dir_name, length, "%s/plugins", extra_libdir);
-            util_exec_on_files (dir_name, 1, 0,
-                                &plugin_auto_load_file, &plugin_args);
+            dir_exec_on_files (dir_name, 1, 0,
+                               &plugin_auto_load_file, &plugin_args);
             free (dir_name);
         }
     }
@@ -1078,8 +1079,8 @@ plugin_auto_load (char *force_plugin_autoload,
         if (dir_name)
         {
             snprintf (dir_name, length, "%s/plugins", WEECHAT_LIBDIR);
-            util_exec_on_files (dir_name, 1, 0,
-                                &plugin_auto_load_file, &plugin_args);
+            dir_exec_on_files (dir_name, 1, 0,
+                               &plugin_auto_load_file, &plugin_args);
             free (dir_name);
         }
     }