319 lines
6.9 KiB
C
319 lines
6.9 KiB
C
/*
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Copyright (c) 2005-2006 Joshua Elsasser. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <signal.h>
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#include <stdarg.h>
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#include <string.h>
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#include <gtk/gtk.h>
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#include <glib/gi18n.h>
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#include "util.h"
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static void
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sigexithandler(int sig);
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static void
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errcb(GtkWidget *wind, int resp, gpointer data);
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gboolean
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strbool(const char *str) {
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switch(str[0]) {
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case 'y':
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case 'Y':
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case '1':
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case 'j':
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case 'e':
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return TRUE;
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default:
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if(0 == g_ascii_strcasecmp("on", str))
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return TRUE;
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break;
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}
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return FALSE;
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}
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static const char *sizestrs[] = {
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N_("B"), N_("KiB"), N_("MiB"), N_("GiB"), N_("TiB"), N_("PiB"), N_("EiB"),
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};
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char *
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readablesize(guint64 size, int decimals) {
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unsigned int ii;
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double small = size;
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for(ii = 0; ii + 1 < ALEN(sizestrs) && 1024.0 <= small / 1024.0; ii++)
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small /= 1024.0;
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if(1024.0 <= small) {
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small /= 1024.0;
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ii++;
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}
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return g_strdup_printf("%.*f %s", decimals, small, gettext(sizestrs[ii]));
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}
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char *
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ratiostr(guint64 down, guint64 up) {
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double ratio;
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if(0 == up && 0 == down)
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return g_strdup(_("N/A"));
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if(0 == down)
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/* this is a UTF-8 infinity symbol */
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return g_strdup(_("\xE2\x88\x9E"));
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ratio = (double)up / (double)down;
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return g_strdup_printf("%.*f", (10.0 > ratio ? 2 : (100.0 > ratio ? 1 : 0)),
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ratio);
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}
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gboolean
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mkdir_p(const char *name, mode_t mode) {
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struct stat sb;
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char *parent;
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gboolean ret;
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int oerrno;
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if(0 != stat(name, &sb)) {
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if(ENOENT != errno)
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return FALSE;
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parent = g_path_get_dirname(name);
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ret = mkdir_p(parent, mode);
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oerrno = errno;
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g_free(parent);
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errno = oerrno;
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return (ret ? (0 == mkdir(name, mode)) : FALSE);
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}
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if(!S_ISDIR(sb.st_mode)) {
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errno = ENOTDIR;
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return FALSE;
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}
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return TRUE;
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}
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char *
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joinstrlist(GList *list, char *sep) {
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GList *ii;
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int len;
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char *ret, *dest;
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if(0 > (len = strlen(sep) * (g_list_length(list) - 1)))
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return NULL;
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for(ii = g_list_first(list); NULL != ii; ii = ii->next)
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len += strlen(ii->data);
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dest = ret = g_new(char, len + 1);
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for(ii = g_list_first(list); NULL != ii; ii = ii->next) {
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dest = g_stpcpy(dest, ii->data);
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if(NULL != ii->next)
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dest = g_stpcpy(dest, sep);
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}
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return ret;
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}
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char *
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urldecode(const char *str, int len) {
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int ii, jj;
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char *ret;
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char buf[3];
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if(0 >= len)
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len = strlen(str);
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for(ii = jj = 0; ii < len; ii++, jj++)
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if('%' == str[ii])
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ii += 2;
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ret = g_new(char, jj + 1);
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buf[2] = '\0';
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for(ii = jj = 0; ii < len; ii++, jj++) {
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switch(str[ii]) {
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case '%':
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if(ii + 2 < len) {
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buf[0] = str[ii+1];
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buf[1] = str[ii+2];
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ret[jj] = g_ascii_strtoull(buf, NULL, 16);
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}
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ii += 2;
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break;
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case '+':
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ret[jj] = ' ';
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default:
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ret[jj] = str[ii];
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}
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}
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ret[jj] = '\0';
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return ret;
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}
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static int exit_sigs[] = {SIGHUP, SIGINT, SIGQUIT, SIGTERM, SIGUSR1, SIGUSR2};
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static callbackfunc_t exit_func = NULL;
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static void *exit_data = NULL;
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static int exit_block_level = 0;
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void
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setuphandlers(callbackfunc_t func, void *data) {
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struct sigaction sa;
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unsigned int ii;
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exit_data = data;
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exit_func = func;
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bzero(&sa, sizeof(sa));
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sa.sa_handler = sigexithandler;
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for(ii = 0; ii < ALEN(exit_sigs); ii++)
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sigaction(exit_sigs[ii], &sa, NULL);
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}
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void
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clearhandlers(void) {
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struct sigaction sa;
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unsigned int ii;
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bzero(&sa, sizeof(sa));
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sa.sa_handler = SIG_DFL;
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for(ii = 0; ii < ALEN(exit_sigs); ii++)
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sigaction(exit_sigs[ii], &sa, NULL);
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}
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static void
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sigexithandler(int sig) {
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exit_func(exit_data);
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clearhandlers();
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raise(sig);
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}
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void
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blocksigs(void) {
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sigset_t mask;
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unsigned int ii;
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if(0 < (exit_block_level++))
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return;
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sigemptyset(&mask);
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for(ii = 0; ii < ALEN(exit_sigs); ii++)
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sigaddset(&mask, exit_sigs[ii]);
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sigprocmask(SIG_BLOCK, &mask, NULL);
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}
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void
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unblocksigs(void) {
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sigset_t mask;
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unsigned int ii;
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if(0 < (--exit_block_level))
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return;
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sigemptyset(&mask);
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for(ii = 0; ii < ALEN(exit_sigs); ii++)
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sigaddset(&mask, exit_sigs[ii]);
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sigprocmask(SIG_UNBLOCK, &mask, NULL);
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}
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GtkWidget *
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errmsg(GtkWindow *wind, const char *format, ...) {
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GtkWidget *dialog;
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va_list ap;
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va_start(ap, format);
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dialog = verrmsg(wind, NULL, NULL, format, ap);
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va_end(ap);
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return dialog;
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}
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GtkWidget *
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errmsg_full(GtkWindow *wind, callbackfunc_t func, void *data,
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const char *format, ...) {
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GtkWidget *dialog;
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va_list ap;
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va_start(ap, format);
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dialog = verrmsg(wind, func, data, format, ap);
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va_end(ap);
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return dialog;
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}
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GtkWidget *
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verrmsg(GtkWindow *wind, callbackfunc_t func, void *data,
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const char *format, va_list ap) {
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GtkWidget *dialog;
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char *msg;
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GList *funcdata;
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msg = g_strdup_vprintf(format, ap);
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if(NULL == wind)
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dialog = gtk_message_dialog_new(
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NULL, 0, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", msg);
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else
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dialog = gtk_message_dialog_new(wind,
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GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
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GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", msg);
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if(NULL == func)
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funcdata = NULL;
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else
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funcdata = g_list_append(g_list_append(NULL, func), data);
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g_signal_connect(dialog, "response", G_CALLBACK(errcb), funcdata);
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if(NULL != wind)
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gtk_widget_show(dialog);
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g_free(msg);
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return dialog;
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}
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static void
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errcb(GtkWidget *widget, int resp SHUTUP, gpointer data) {
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GList *funcdata;
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callbackfunc_t func;
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if(NULL != data) {
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funcdata = g_list_first(data);
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func = funcdata->data;
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data = funcdata->next->data;
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func(data);
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g_list_free(funcdata);
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}
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gtk_widget_destroy(widget);
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}
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