/* * Copyright (c) 2003-2007 by FlashCode * 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 . */ /* wee-util.c: some useful functions for WeeChat */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include #include #include #include "weechat.h" #include "wee-util.h" #include "wee-config.h" #include "wee-string.h" /* * util_timeval_cmp: compare two timeval structures * return: -1 if tv1 < tv2 * 0 if tv1 == tv2 * 1 if tv1 > tv2 */ int util_timeval_cmp (struct timeval *tv1, struct timeval *tv2) { if (tv1->tv_sec < tv2->tv_sec) return -1; if (tv1->tv_sec > tv2->tv_sec) return 1; if (tv1->tv_usec < tv2->tv_usec) return -1; if (tv1->tv_usec > tv2->tv_usec) return 1; return 0; } /* * util_timeval_diff: calculates difference between two times (return in * milliseconds) */ long util_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_timeval_add: add interval (in milliseconds) to a timeval struct */ void util_timeval_add (struct timeval *tv, long interval) { long usec; tv->tv_sec += (interval / 1000); usec = tv->tv_usec + ((interval % 1000) * 1000); if (usec > 1000000) { tv->tv_usec = usec % 1000000; tv->tv_sec++; } else tv->tv_usec = usec; } /* * 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, void *data, int (*callback)(void *data, char *filename)) { char complete_filename[1024]; DIR *dir; struct dirent *entry; struct stat statbuf; if (!directory || !callback) return; 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) (data, 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; }