core: remove "wee-" prefix from source files in src/core and src/core/hook

1 files changed, 0 insertions, 1396 deletions

diff --git a/src/core/wee-dir.c b/src/core/wee-dir.c
deleted file mode 100644
index d3c6ed426..000000000
--- a/src/core/wee-dir.c
+++ /dev/null
@@ -1,1396 +0,0 @@
-/*
- * wee-dir.c - directory/file functions
- *
- * Copyright (C) 2003-2024 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
-#if defined(__APPLE__)
-#define _DARWIN_C_SOURCE
-#endif
-
-#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 <zlib.h>
-#ifdef HAVE_ZSTD
-#include <zstd.h>
-#endif
-
-#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 $HOME */
-    tmpdir = getenv ("HOME");
-    if (tmpdir && tmpdir[0])
-    {
-        rc = stat (tmpdir, &buf);
-        if ((rc == 0) && S_ISDIR(buf.st_mode))
-            return strdup (tmpdir);
-    }
-
-    /* fallback on current directory */
-    return strdup (".");
-}
-
-/*
- * Creates a directory in WeeChat home.
- *
- * Returns:
- *   1: OK
- *   0: error
- */
-
-int
-dir_mkdir_home (const char *directory, int mode)
-{
-    char *dir, *dir1, *dir2, *dir3, *dir4;
-    int rc, dir_length;
-
-    rc = 0;
-    dir = NULL;
-    dir1 = NULL;
-    dir2 = NULL;
-    dir3 = NULL;
-    dir4 = NULL;
-
-    if (!directory)
-        goto end;
-
-    if (strncmp (directory, "${", 2) == 0)
-    {
-        dir = strdup (directory);
-    }
-    else
-    {
-        /* build directory in data dir by default */
-        dir_length = strlen (weechat_data_dir) + strlen (directory) + 2;
-        dir = malloc (dir_length);
-        if (!dir)
-            goto end;
-        snprintf (dir, dir_length, "%s/%s", weechat_data_dir, directory);
-    }
-
-    dir1 = string_replace (dir, "${weechat_config_dir}", weechat_config_dir);
-    if (!dir1)
-        goto end;
-
-    dir2 = string_replace (dir1, "${weechat_data_dir}", weechat_data_dir);
-    if (!dir2)
-        goto end;
-
-    dir3 = string_replace (dir2, "${weechat_cache_dir}", weechat_cache_dir);
-    if (!dir3)
-        goto end;
-
-    dir4 = string_replace (dir3, "${weechat_runtime_dir}", weechat_runtime_dir);
-    if (!dir4)
-        goto end;
-
-    /* build directory, adding WeeChat home */
-    if (mkdir (dir4, mode) < 0)
-    {
-        if (errno != EEXIST)
-            goto end;
-    }
-
-    rc = 1;
-
-end:
-    if (dir)
-        free (dir);
-    if (dir1)
-        free (dir1);
-    if (dir2)
-        free (dir2);
-    if (dir3)
-        free (dir3);
-    if (dir4)
-        free (dir4);
-    return rc;
-}
-
-/*
- * 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;
-}
-
-/*
- * Uses one or four different paths for WeeChat home directories.
- *
- * If 4 paths are given, they must be separated by colons and given in this
- * order: config, data, cache, runtime.
- *
- * Returns:
- *   1: OK
- *   0: error
- */
-
-int
-dir_set_home_path (char *path)
-{
-    char **paths;
-    int rc, num_paths;
-
-    rc = 0;
-    paths = NULL;
-
-    if (!path)
-        goto end;
-
-    paths = string_split (path, ":", NULL, 0, 0, &num_paths);
-    if (!paths)
-    {
-        string_fprintf (stderr, _("Error: not enough memory\n"));
-        goto end;
-    }
-
-    if (num_paths == 1)
-    {
-        weechat_config_dir = string_expand_home (paths[0]);
-        weechat_data_dir = string_expand_home (paths[0]);
-        weechat_cache_dir = string_expand_home (paths[0]);
-        weechat_runtime_dir = string_expand_home (paths[0]);
-    }
-    else if (num_paths == 4)
-    {
-        weechat_config_dir = string_expand_home (paths[0]);
-        weechat_data_dir = string_expand_home (paths[1]);
-        weechat_cache_dir = string_expand_home (paths[2]);
-        weechat_runtime_dir = string_expand_home (paths[3]);
-    }
-    else
-    {
-        string_fprintf (stderr,
-                        _("Error: wrong number of paths for home directories "
-                          "(expected: 1 or 4, received: %d)\n"),
-                        num_paths);
-        goto end;
-    }
-
-    rc = 1;
-
-end:
-    if (paths)
-        string_free_split (paths);
-    return rc;
-}
-
-/*
- * Creates WeeChat temporary home directory (deleted on exit).
- *
- * Returns:
- *   1: OK
- *   0: error
- */
-
-int
-dir_create_home_temp_dir ()
-{
-    char *temp_dir, *temp_home_template, *ptr_weechat_home;
-    int rc, length, add_separator;
-
-    rc = 0;
-    temp_dir = NULL;
-    temp_home_template = NULL;
-
-    temp_dir = dir_get_temp_dir ();
-    if (!temp_dir || !temp_dir[0])
-        goto memory_error;
-
-    length = strlen (temp_dir) + 32 + 1;
-    temp_home_template = malloc (length);
-    if (!temp_home_template)
-        goto memory_error;
-
-    add_separator = (temp_dir[strlen (temp_dir) - 1] != DIR_SEPARATOR_CHAR);
-    snprintf (temp_home_template, length,
-              "%s%sweechat_temp_XXXXXX",
-              temp_dir,
-              add_separator ? DIR_SEPARATOR : "");
-    ptr_weechat_home = mkdtemp (temp_home_template);
-    if (!ptr_weechat_home)
-    {
-        string_fprintf (stderr,
-                        _("Error: unable to create a temporary "
-                          "home directory (using template: \"%s\")\n"),
-                        temp_home_template);
-        goto end;
-    }
-
-    weechat_config_dir = strdup (ptr_weechat_home);
-    weechat_data_dir = strdup (ptr_weechat_home);
-    weechat_cache_dir = strdup (ptr_weechat_home);
-    weechat_runtime_dir = strdup (ptr_weechat_home);
-
-    weechat_home_delete_on_exit = 1;
-
-    rc = 1;
-    goto end;
-
-memory_error:
-    string_fprintf (stderr, _("Error: not enough memory\n"));
-
-end:
-    if (temp_dir)
-        free (temp_dir);
-    if (temp_home_template)
-        free (temp_home_template);
-    return rc;
-}
-
-/*
- * Finds XDG directories.
- *
- * Returns:
- *   1: OK
- *   0: error
- */
-
-int
-dir_find_xdg_dirs (char **config_dir, char **data_dir, char **cache_dir,
-                   char **runtime_dir)
-{
-    char *ptr_home, path[PATH_MAX];
-    char *xdg_config_home, *xdg_data_home, *xdg_cache_home, *xdg_runtime_dir;
-
-    *config_dir = NULL;
-    *data_dir = NULL;
-    *cache_dir = NULL;
-    *runtime_dir = NULL;
-
-    ptr_home = getenv ("HOME");
-    if (!ptr_home)
-        goto error_home;
-
-    xdg_config_home = getenv ("XDG_CONFIG_HOME");
-    xdg_data_home = getenv ("XDG_DATA_HOME");
-    xdg_cache_home = getenv ("XDG_CACHE_HOME");
-    xdg_runtime_dir = getenv ("XDG_RUNTIME_DIR");
-
-    /* set config dir: $XDG_CONFIG_HOME/weechat or $HOME/.config/weechat */
-    if (xdg_config_home && xdg_config_home[0])
-    {
-        snprintf (path, sizeof (path),
-                  "%s%s%s",
-                  xdg_config_home, DIR_SEPARATOR, "weechat");
-    }
-    else
-    {
-        snprintf (path, sizeof (path),
-                  "%s%s%s%s%s",
-                  ptr_home, DIR_SEPARATOR, ".config", DIR_SEPARATOR, "weechat");
-    }
-    *config_dir = strdup (path);
-    if (!*config_dir)
-        goto error_memory;
-
-    /* set data dir: $XDG_DATA_HOME/weechat or $HOME/.local/share/weechat */
-    if (xdg_data_home && xdg_data_home[0])
-    {
-        snprintf (path, sizeof (path),
-                  "%s%s%s",
-                  xdg_data_home, DIR_SEPARATOR, "weechat");
-    }
-    else
-    {
-        snprintf (path, sizeof (path),
-                  "%s%s%s%s%s%s%s",
-                  ptr_home, DIR_SEPARATOR, ".local", DIR_SEPARATOR, "share",
-                  DIR_SEPARATOR, "weechat");
-    }
-    *data_dir = strdup (path);
-    if (!*data_dir)
-        goto error_memory;
-
-    /* set cache dir: $XDG_CACHE_HOME/weechat or $HOME/.cache/weechat */
-    if (xdg_cache_home && xdg_cache_home[0])
-    {
-        snprintf (path, sizeof (path),
-                  "%s%s%s",
-                  xdg_cache_home, DIR_SEPARATOR, "weechat");
-    }
-    else
-    {
-        snprintf (path, sizeof (path),
-                  "%s%s%s%s%s",
-                  ptr_home, DIR_SEPARATOR, ".cache", DIR_SEPARATOR, "weechat");
-    }
-    *cache_dir = strdup (path);
-    if (!*cache_dir)
-        goto error_memory;
-
-    /* set runtime dir: $XDG_RUNTIME_DIR/weechat or same as cache dir */
-    if (xdg_runtime_dir && xdg_runtime_dir[0])
-    {
-        snprintf (path, sizeof (path),
-                  "%s%s%s",
-                  xdg_runtime_dir, DIR_SEPARATOR, "weechat");
-        *runtime_dir = strdup (path);
-    }
-    else
-    {
-        *runtime_dir = strdup (*cache_dir);
-    }
-    if (!*runtime_dir)
-        goto error_memory;
-
-    return 1;
-
-error_home:
-    string_fprintf (stderr,
-                    _("Error: environment variable \"HOME\" is not defined\n"));
-    goto error;
-
-error_memory:
-    string_fprintf (stderr, _("Error: not enough memory\n"));
-    goto error;
-
-error:
-    if (*config_dir)
-    {
-        free (*config_dir);
-        *config_dir = NULL;
-    }
-    if (*data_dir)
-    {
-        free (*data_dir);
-        *data_dir = NULL;
-    }
-    if (*cache_dir)
-    {
-        free (*cache_dir);
-        *cache_dir = NULL;
-    }
-    if (*runtime_dir)
-    {
-        free (*runtime_dir);
-        *runtime_dir = NULL;
-    }
-    return 0;
-}
-
-/*
- * Finds WeeChat home directories: it can be either XDG directories or the
- * same directory for all files (like the legacy directory ~/.weechat).
- *
- * Returns:
- *   1: OK
- *   0: error
- */
-
-int
-dir_find_home_dirs ()
-{
-    char *ptr_home, *ptr_weechat_home, *config_weechat_home;
-    char *config_dir, *data_dir, *cache_dir, *runtime_dir;
-    char path[PATH_MAX];
-
-    /* temporary WeeChat home */
-    if (weechat_home_temp)
-        return dir_create_home_temp_dir ();
-
-    /* use a forced home with -d/--dir */
-    if (weechat_home_force)
-        return dir_set_home_path (weechat_home_force);
-
-    /* use environment variable "WEECHAT_HOME" (if set) */
-    ptr_weechat_home = getenv ("WEECHAT_HOME");
-    if (ptr_weechat_home && ptr_weechat_home[0])
-        return dir_set_home_path (ptr_weechat_home);
-
-    /* use the home forced at compilation time (if set) */
-    config_weechat_home = WEECHAT_HOME;
-    if (config_weechat_home[0])
-        return dir_set_home_path (config_weechat_home);
-
-    if (!dir_find_xdg_dirs (&config_dir, &data_dir, &cache_dir, &runtime_dir))
-        return 0;
-
-    /* check if {weechat_config_dir}/weechat.conf exists */
-    snprintf (path, sizeof (path),
-              "%s%s%s",
-              config_dir, DIR_SEPARATOR, "weechat.conf");
-    if (access (path, F_OK) == 0)
-        goto use_xdg;
-
-    /*
-     * check if $HOME/.weechat/weechat.conf exists
-     * (compatibility with old releases not supporting XDG directories)
-     */
-    ptr_home = getenv ("HOME");
-    snprintf (path, sizeof (path),
-              "%s%s%s%s%s",
-              ptr_home, DIR_SEPARATOR, ".weechat", DIR_SEPARATOR, "weechat.conf");
-    if (access (path, F_OK) == 0)
-    {
-        snprintf (path, sizeof (path),
-                  "%s%s%s",
-                  ptr_home, DIR_SEPARATOR, ".weechat");
-        weechat_config_dir = strdup (path);
-        weechat_data_dir = strdup (path);
-        weechat_cache_dir = strdup (path);
-        weechat_runtime_dir = strdup (path);
-        free (config_dir);
-        free (data_dir);
-        free (cache_dir);
-        free (runtime_dir);
-        return 1;
-    }
-
-    /* use XDG directories */
-use_xdg:
-    weechat_config_dir = config_dir;
-    weechat_data_dir = data_dir;
-    weechat_cache_dir = cache_dir;
-    weechat_runtime_dir = runtime_dir;
-    return 1;
-}
-
-/*
- * Removes trailing separators in path, which is modified in place
- * (each trailing separator is replaced by NUL char).
- *
- * Example on Linux: "/home/xxx/" => "/home/xxx".
- */
-
-void
-dir_remove_trailing_separators (char *path)
-{
-    int length;
-
-    if (!path || !path[0])
-        return;
-
-    length = strlen (path);
-    while ((length > 1) && (path[length - 1] == DIR_SEPARATOR_CHAR))
-    {
-        path[length - 1] = '\0';
-        length--;
-    }
-}
-
-/*
- * Creates a home directory.
- *
- * Returns:
- *   1: OK
- *   0: error
- */
-
-int
-dir_create_home_dir (char *path)
-{
-    struct stat statinfo;
-
-    /* if home already exists, it has to be a directory */
-    if (stat (path, &statinfo) == 0)
-    {
-        if (!S_ISDIR (statinfo.st_mode))
-        {
-            string_fprintf (stderr,
-                            _("Error: \"%s\" is not a directory\n"),
-                            path);
-            return 0;
-        }
-    }
-
-    /* create home directory; error is fatal */
-    if (!dir_mkdir_parents (path, 0700))
-    {
-        string_fprintf (stderr,
-                        _("Error: cannot create directory \"%s\"\n"),
-                        path);
-        return 0;
-    }
-
-    return 1;
-}
-
-/*
- * Creates WeeChat home directories.
- *
- * Any error in this function (or a sub function called) is fatal: WeeChat
- * can not run at all without the home directories.
- */
-
-void
-dir_create_home_dirs ()
-{
-    int rc;
-
-    if (!dir_find_home_dirs ())
-        goto error;
-
-    dir_remove_trailing_separators (weechat_config_dir);
-    dir_remove_trailing_separators (weechat_data_dir);
-    dir_remove_trailing_separators (weechat_cache_dir);
-    dir_remove_trailing_separators (weechat_runtime_dir);
-
-    rc = dir_create_home_dir (weechat_config_dir);
-    if (rc && (strcmp (weechat_config_dir, weechat_data_dir) != 0))
-        rc = dir_create_home_dir (weechat_data_dir);
-    if (rc && (strcmp (weechat_config_dir, weechat_cache_dir) != 0))
-        rc = dir_create_home_dir (weechat_cache_dir);
-    if (rc && (strcmp (weechat_config_dir, weechat_runtime_dir) != 0))
-        rc = dir_create_home_dir (weechat_runtime_dir);
-    if (rc)
-        return;
-
-error:
-    weechat_shutdown (EXIT_FAILURE, 0);
-}
-
-/*
- * Removes WeeChat home directories (called when -t / --temp-dir is given).
- */
-
-void
-dir_remove_home_dirs ()
-{
-    dir_rmtree (weechat_config_dir);
-    if (strcmp (weechat_config_dir, weechat_data_dir) != 0)
-        dir_rmtree (weechat_data_dir);
-    if (strcmp (weechat_config_dir, weechat_cache_dir) != 0)
-        dir_rmtree (weechat_cache_dir);
-    if (strcmp (weechat_config_dir, weechat_runtime_dir) != 0)
-        dir_rmtree (weechat_runtime_dir);
-}
-
-/*
- * Returns a string with home directories separated by colons, in this order:
- * config_dir, data_dir, cache_dir, runtime_dir.
- *
- * Example of value returned:
- *   /home/user/.config/weechat:/home/user/.local/share/weechat:
- *     /home/user/.cache/weechat:/run/user/1000/weechat
- *
- * Note: result must be freed after use.
- */
-
-char *
-dir_get_string_home_dirs ()
-{
-    char *dirs[5];
-
-    dirs[0] = weechat_config_dir;
-    dirs[1] = weechat_data_dir;
-    dirs[2] = weechat_cache_dir;
-    dirs[3] = weechat_runtime_dir;
-    dirs[4] = NULL;
-
-    return string_rebuild_split_string ((const char **)dirs, ":", 0, -1);
-}
-
-/*
- * 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[256], final_name[PATH_MAX], *extra_libdir;
-    struct stat st;
-    int rc;
-
-    rc = snprintf (name_with_ext, sizeof (name_with_ext),
-                   "%s%s",
-                   filename,
-                   (strchr (filename, '.')) ? "" : extension);
-    if ((rc < 0) || (rc >= (int)sizeof (name_with_ext)))
-        return NULL;
-
-    /* try libdir from environment variable WEECHAT_EXTRA_LIBDIR */
-    extra_libdir = getenv (WEECHAT_EXTRA_LIBDIR);
-    if (extra_libdir && extra_libdir[0])
-    {
-        rc = snprintf (final_name, sizeof (final_name),
-                       "%s%s%s%s%s",
-                       extra_libdir,
-                       DIR_SEPARATOR,
-                       plugins_dir,
-                       DIR_SEPARATOR,
-                       name_with_ext);
-        if ((rc < 0) || (rc >= (int)sizeof (final_name)))
-            return NULL;
-        if ((stat (final_name, &st) == 0) && (st.st_size > 0))
-            return strdup (final_name);
-    }
-
-    /* try WeeChat user's dir */
-    rc = snprintf (final_name, sizeof (final_name),
-                   "%s%s%s%s%s",
-                   weechat_data_dir,
-                   DIR_SEPARATOR,
-                   plugins_dir,
-                   DIR_SEPARATOR,
-                   name_with_ext);
-    if ((rc < 0) || (rc >= (int)sizeof (final_name)))
-        return NULL;
-    if ((stat (final_name, &st) == 0) && (st.st_size > 0))
-        return strdup (final_name);
-
-    /* try WeeChat global lib dir */
-    rc = snprintf (final_name, sizeof (final_name),
-                   "%s%s%s%s%s",
-                   WEECHAT_LIBDIR,
-                   DIR_SEPARATOR,
-                   plugins_dir,
-                   DIR_SEPARATOR,
-                   name_with_ext);
-    if ((rc < 0) || (rc >= (int)sizeof (final_name)))
-        return NULL;
-    if ((stat (final_name, &st) == 0) && (st.st_size > 0))
-        return strdup (final_name);
-
-    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;
-}
-
-/*
- * Copies a file to another location.
- *
- * Returns:
- *   1: OK
- *   0: error
- */
-
-int
-dir_file_copy (const char *from, const char *to)
-{
-    FILE *src, *dst;
-    char *buffer;
-    int rc;
-    size_t count;
-
-    rc = 0;
-    buffer = NULL;
-    src = NULL;
-    dst = NULL;
-
-    if (!from || !from[0] || !to || !to[0])
-        goto end;
-
-    buffer = malloc (65536);
-    if (!buffer)
-        goto end;
-
-    src = fopen (from, "rb");
-    if (!src)
-        goto end;
-    dst = fopen (to, "wb");
-    if (!dst)
-        goto end;
-
-    while (!feof (src))
-    {
-        count = fread (buffer, 1, 65536, src);
-        if (count <= 0)
-            goto end;
-        if (fwrite (buffer, 1, count, dst) <= 0)
-            goto end;
-    }
-
-    rc = 1;
-
-end:
-    if (buffer)
-	free (buffer);
-    if (src)
-        fclose (src);
-    if (dst)
-        fclose (dst);
-    return rc;
-}
-
-/*
- * Compresses a file with gzip.
- *
- * Notes:
- *   - the output file must not exist
- *   - compression_level is an integer between 1 and 9
- *
- * Returns:
- *   1: OK
- *   0: error
- */
-
-int
-dir_file_compress_gzip (const char *from, const char *to,
-                        int compression_level)
-{
-    FILE *source, *dest;
-    z_stream strm;
-    unsigned char *buffer_in, *buffer_out;
-    int rc, ret, flush;
-    size_t buffer_size, have;
-
-    source = NULL;
-    dest = NULL;
-    buffer_size = 256 * 1024;
-    buffer_in = NULL;
-    buffer_out = NULL;
-    rc = 0;
-
-    if (!from || !to || (compression_level < 1) || (compression_level > 9))
-        goto end;
-
-    if (access (to, F_OK) == 0)
-        goto end;
-
-    buffer_in = malloc (buffer_size);
-    if (!buffer_in)
-        goto end;
-    buffer_out = malloc (buffer_size);
-    if (!buffer_out)
-        goto end;
-
-    source = fopen (from, "rb");
-    if (!source)
-        goto end;
-    dest = fopen (to, "wb");
-    if (!dest)
-        goto end;
-
-    strm.zalloc = Z_NULL;
-    strm.zfree = Z_NULL;
-    strm.opaque = Z_NULL;
-
-    ret = deflateInit2 (
-        &strm,
-        compression_level,
-        Z_DEFLATED,           /* method */
-        15 + 16,              /* + 16 = gzip instead of zlib */
-        8,                    /* memLevel */
-        Z_DEFAULT_STRATEGY);  /* strategy */
-    if (ret != Z_OK)
-        goto end;
-
-    do
-    {
-        strm.avail_in = fread (buffer_in, 1, buffer_size, source);
-        if (ferror (source))
-            goto error;
-
-        flush = feof (source) ? Z_FINISH : Z_NO_FLUSH;
-        strm.next_in = buffer_in;
-
-        do
-        {
-            strm.avail_out = buffer_size;
-            strm.next_out = buffer_out;
-            ret = deflate (&strm, flush);
-            if (ret == Z_STREAM_ERROR)
-                goto error;
-            have = buffer_size - strm.avail_out;
-            if ((fwrite (buffer_out, 1, have, dest) != have) || ferror (dest))
-                goto error;
-        } while (strm.avail_out == 0);
-        if (strm.avail_in != 0)
-            goto error;
-    } while (flush != Z_FINISH);
-
-    if (ret != Z_STREAM_END)
-        goto error;
-
-    (void) deflateEnd (&strm);
-
-    rc = 1;
-    goto end;
-
-error:
-    (void) deflateEnd (&strm);
-    unlink (to);
-
-end:
-    if (buffer_in)
-        free (buffer_in);
-    if (buffer_out)
-        free (buffer_out);
-    if (source)
-        fclose (source);
-    if (dest)
-        fclose (dest);
-
-    return rc;
-}
-
-/*
- * Compresses a file with zstandard.
- *
- * Notes:
- *   - the output file must not exist
- *   - compression_level is an integer between 1 and 19
- *
- * Returns:
- *   1: OK
- *   0: error
- */
-
-int
-dir_file_compress_zstd (const char *from, const char *to,
-                        int compression_level)
-{
-#ifdef HAVE_ZSTD
-    FILE *source, *dest;
-    void *buffer_in, *buffer_out;
-    size_t buffer_in_size, buffer_out_size, num_read, remaining;
-    int rc;
-#if ZSTD_VERSION_NUMBER >= 10400  /* zstd ≥ 1.4.0 */
-    ZSTD_CCtx *cctx = NULL;
-    ZSTD_EndDirective mode;
-    int finished, last_chunk;
-#else  /* zstd < 1.4.0 */
-    ZSTD_CStream *cstream = NULL;
-    size_t result, to_read;
-#endif
-    ZSTD_inBuffer input;
-    ZSTD_outBuffer output;
-
-    source = NULL;
-    dest = NULL;
-    buffer_in = NULL;
-    buffer_out = NULL;
-    rc = 0;
-
-    if (!from || !to || (compression_level < 1) || (compression_level > 19))
-        goto end;
-
-    if (access (to, F_OK) == 0)
-        goto end;
-
-    buffer_in_size = ZSTD_CStreamInSize ();
-    buffer_in = malloc (buffer_in_size);
-    if (!buffer_in)
-        goto end;
-    buffer_out_size = ZSTD_CStreamOutSize ();
-    buffer_out = malloc (buffer_out_size);
-    if (!buffer_out)
-        goto end;
-
-    source = fopen (from, "rb");
-    if (!source)
-        goto end;
-    dest = fopen (to, "wb");
-    if (!dest)
-        goto end;
-
-#if ZSTD_VERSION_NUMBER >= 10400  /* zstd ≥ 1.4.0 */
-    cctx = ZSTD_createCCtx ();
-    if (!cctx)
-        goto error;
-    ZSTD_CCtx_setParameter (cctx, ZSTD_c_compressionLevel, compression_level);
-
-    while (1)
-    {
-        num_read = fread (buffer_in, 1, buffer_in_size, source);
-        if (ferror (source))
-            goto error;
-        last_chunk = (num_read < buffer_in_size);
-        mode = (last_chunk) ? ZSTD_e_end : ZSTD_e_continue;
-        input.src = buffer_in;
-        input.size = num_read;
-        input.pos = 0;
-        finished = 0;
-        while (!finished)
-        {
-            output.dst = buffer_out;
-            output.size = buffer_out_size;
-            output.pos = 0;
-            remaining = ZSTD_compressStream2(cctx, &output , &input, mode);
-            if (ZSTD_isError (remaining))
-                goto error;
-            if ((fwrite (buffer_out, 1, output.pos, dest) != output.pos)
-                || ferror (dest))
-            {
-                goto error;
-            }
-            finished = (last_chunk) ? (remaining == 0) : (input.pos == input.size);
-        };
-        if (input.pos != input.size)
-            goto error;
-        if (last_chunk)
-            break;
-    }
-#else  /* zstd < 1.4.0 */
-    cstream = ZSTD_createCStream ();
-    if (!cstream)
-        goto error;
-    result = ZSTD_initCStream (cstream, compression_level);
-    if (ZSTD_isError (result))
-        goto error;
-    to_read = buffer_in_size;
-    while ((num_read = fread (buffer_in, 1, buffer_in_size, source)))
-    {
-        input.src = buffer_in;
-        input.size = num_read;
-        input.pos = 0;
-        while (input.pos < input.size)
-        {
-            output.dst = buffer_out;
-            output.size = buffer_out_size;
-            output.pos = 0;
-            to_read = ZSTD_compressStream (cstream, &output , &input);
-            if (ZSTD_isError (to_read))
-                goto error;
-            if (to_read > buffer_in_size)
-                to_read = buffer_in_size;
-            if ((fwrite (buffer_out, 1, output.pos, dest) != output.pos)
-                || ferror (dest))
-            {
-                goto error;
-            }
-        }
-    }
-
-    output.dst = buffer_out;
-    output.size = buffer_out_size;
-    output.pos = 0;
-    remaining = ZSTD_endStream (cstream, &output);
-    if (remaining)
-        goto error;
-    if ((fwrite (buffer_out, 1, output.pos, dest) != output.pos)
-        || ferror (dest))
-    {
-        goto error;
-    }
-#endif
-
-    rc = 1;
-    goto end;
-
-error:
-#if ZSTD_VERSION_NUMBER >= 10400  /* zstd ≥ 1.4.0 */
-    if (cctx)
-    {
-        ZSTD_freeCCtx (cctx);
-        cctx = NULL;
-    }
-#else  /* zstd < 1.4.0 */
-    if (cstream)
-    {
-        ZSTD_freeCStream (cstream);
-        cstream = NULL;
-    }
-#endif
-    unlink (to);
-
-end:
-#if ZSTD_VERSION_NUMBER >= 10400  /* zstd ≥ 1.4.0 */
-    if (cctx)
-        ZSTD_freeCCtx (cctx);
-#else  /* zstd < 1.4.0 */
-    if (cstream)
-        ZSTD_freeCStream (cstream);
-#endif
-
-    if (buffer_in)
-        free (buffer_in);
-    if (buffer_out)
-        free (buffer_out);
-    if (source)
-        fclose (source);
-    if (dest)
-        fclose (dest);
-
-    return rc;
-#else
-    /* make C compiler happy */
-    (void) from;
-    (void) to;
-    (void) compression_level;
-
-    return 0;
-#endif /* HAVE_ZSTD */
-}
-
-/*
- * Compresses a file with gzip or zstandard.
- *
- * The output file must not exist.
- *
- * Supported values for parameter "compressor":
- *   - "gzip": gzip compression (via zlib)
- *   - "zstd": zstandard compression (it must be enabled at build time)
- *
- * Parameter "compression_level" is the compression level as percentage:
- * from 1 (fast, low compression) to 100 (slow, best compression).
- *
- * Returns:
- *   1: OK
- *   0: error
- */
-
-int
-dir_file_compress (const char *filename_input,
-                   const char *filename_output,
-                   const char *compressor,
-                   int compression_level)
-{
-    int level;
-
-    if (!compressor || (compression_level < 1) || (compression_level > 100))
-        return 0;
-
-    if (strcmp (compressor, "gzip") == 0)
-    {
-        /* convert percent to zlib compression level (1-9) */
-        level = (((compression_level - 1) * 9) / 100) + 1;
-        return dir_file_compress_gzip (filename_input, filename_output, level);
-    }
-    else if (strcmp (compressor, "zstd") == 0)
-    {
-        /* convert percent to zstd compression level (1-19) */
-        level = (((compression_level - 1) * 19) / 100) + 1;
-        return dir_file_compress_zstd (filename_input, filename_output, level);
-    }
-    else
-    {
-        return 0;
-    }
-}