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/*
* Copyright (c) 2003-2007 by FlashCode <flashcode@flashtux.org>
* See README for License detail, AUTHORS for developers list.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
/* wee-util.c: some useful functions for WeeChat */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include "weechat.h"
#include "wee-util.h"
#include "wee-config.h"
#include "wee-string.h"
/*
* util_get_timeval_diff: calculates difference between two times (return in
* milliseconds)
*/
long
util_get_timeval_diff (struct timeval *tv1, struct timeval *tv2)
{
long diff_sec, diff_usec;
diff_sec = tv2->tv_sec - tv1->tv_sec;
diff_usec = tv2->tv_usec - tv1->tv_usec;
if (diff_usec < 0)
{
diff_usec += 1000000;
diff_sec--;
}
return ((diff_usec / 1000) + (diff_sec * 1000));
}
/*
* util_get_time_length: calculates time length with a time format
*/
int
util_get_time_length (char *time_format)
{
time_t date;
struct tm *local_time;
char text_time[1024];
if (!time_format || !time_format[0])
return 0;
date = time (NULL);
local_time = localtime (&date);
strftime (text_time, sizeof (text_time),
time_format, local_time);
return strlen (text_time);
}
/*
* util_create_dir: create a directory
* return: 1 if ok (or directory already exists)
* 0 if error
*/
int
util_create_dir (char *directory, int permissions)
{
if (mkdir (directory, 0755) < 0)
{
/* exit if error (except if directory already exists) */
if (errno != EEXIST)
{
string_iconv_fprintf (stderr,
_("Error: cannot create directory \"%s\"\n"),
directory);
return 0;
}
return 1;
}
if ((permissions != 0) && (strcmp (directory, getenv ("HOME")) != 0))
chmod (directory, permissions);
return 1;
}
/*
* util_exec_on_files: find files in a directory and execute a
* function on each file
*/
void
util_exec_on_files (char *directory, int (*callback)(char *))
{
char complete_filename[1024];
DIR *dir;
struct dirent *entry;
struct stat statbuf;
dir = opendir (directory);
if (dir)
{
while ((entry = readdir (dir)))
{
snprintf (complete_filename, sizeof (complete_filename) - 1,
"%s/%s", directory, entry->d_name);
lstat (complete_filename, &statbuf);
if (!S_ISDIR(statbuf.st_mode))
{
(int) (*callback) (complete_filename);
}
}
closedir (dir);
}
}
/*
* util_search_full_lib_name: search the full name of a WeeChat library
* file with a part of name
* - look in WeeChat user's dir, then WeeChat
* global lib dir
* - sys_directory is the system directory under
* WeeChat lib prefix, for example "plugins"
* - result has to be free() after use
*/
char *
util_search_full_lib_name (char *filename, char *sys_directory)
{
char *name_with_ext, *final_name;
int length;
struct stat st;
/* filename is already a full path */
if (strchr (filename, '/') || strchr (filename, '\\'))
return strdup (filename);
length = strlen (filename) + 16;
if (CONFIG_STRING(config_plugins_extension)
&& CONFIG_STRING(config_plugins_extension)[0])
length += strlen (CONFIG_STRING(config_plugins_extension));
name_with_ext = (char *)malloc (length);
if (!name_with_ext)
return strdup (filename);
strcpy (name_with_ext, filename);
if (!strchr (filename, '.')
&& CONFIG_STRING(config_plugins_extension)
&& CONFIG_STRING(config_plugins_extension)[0])
strcat (name_with_ext, CONFIG_STRING(config_plugins_extension));
/* try WeeChat user's dir */
length = strlen (weechat_home) + strlen (name_with_ext) +
strlen (sys_directory) + 16;
final_name = (char *)malloc (length);
if (!final_name)
{
free (name_with_ext);
return strdup (filename);
}
snprintf (final_name, length,
"%s/%s/%s", weechat_home, sys_directory, 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 (sys_directory) + 16;
final_name = (char *)malloc (length);
if (!final_name)
{
free (name_with_ext);
return strdup (filename);
}
snprintf (final_name, length,
"%s/%s/%s", WEECHAT_LIBDIR, sys_directory, name_with_ext);
if ((stat (final_name, &st) == 0) && (st.st_size > 0))
{
free (name_with_ext);
return final_name;
}
free (final_name);
return name_with_ext;
}
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