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/*
Copyright (c) 2003 Bruno T. C. de Oliveira
LICENSE INFORMATION:
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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Copyright (c) 2002 Bruno T. C. de Oliveira
INFORMA��ES DE LICEN�A:
Este programa � um software de livre distribui��o; voc� pode
redistribu�-lo e/ou modific�-lo sob os termos da GNU General
Public License, conforme publicado pela Free Software Foundation,
pela vers�o 2 da licen�a ou qualquer vers�o posterior.
Este programa � distribu�do na esperan�a de que ele ser� �til
aos seus usu�rios, por�m, SEM QUAISQUER GARANTIAS; sem sequer
a garantia impl�cita de COMERCIABILIDADE ou DE ADEQUA��O A
QUALQUER FINALIDADE ESPEC�FICA. Consulte a GNU General Public
License para obter mais detalhes (uma c�pia acompanha este
programa, armazenada no arquivo COPYING).
*/
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <ncurses.h>
#include <unistd.h>
#include "document.h"
#include "psd.h"
#include "ui.h"
void edit_metainfo(void) {
char *editor;
FILE *f;
int fd, ret, size, i;
static char tmpname[64];
static char buf[128];
mode_t oldumask;
editor = getenv("VISUAL");
if (!editor) editor = getenv("EDITOR");
if (!editor) editor = "sensible-editor";
/* create a temporary file */
strcpy(tmpname, "/tmp/aewan-XXXXXX");
oldumask = umask(077); /* so that mkstemp creates a file with perms=700 */
fd = mkstemp(tmpname);
umask(oldumask);
/* check for error */
if (fd < 0) {
sprintf(buf, "ERROR creating temp file: %s", strerror(errno));
ui_message(buf, UIMSG_ERROR);
return;
}
/* do an fdopen so we can manipulate it via FILE* structure */
f = fdopen(fd, "w");
/* write current contents of metainfo string to the file */
if (_doc->metainfo) fputs(_doc->metainfo, f);
/* close file */
fclose(f);
close(fd); /* is this necessary? */
/* fire up editor */
sprintf(buf, "%s %s", editor, tmpname);
clear();
refresh();
endwin(); /* temporarily stop curses */
if ( (ret = system(buf)) ) {
/* error code returned */
sprintf(buf, "ERROR: editor (%s) returned error code %d.", editor, ret);
ui_message(buf, UIMSG_ERROR);
return;
}
/* restore curses */
touchwin(stdscr); /* force full redraw */
refresh();
/* ok, now read back file contents into metainfo string */
f = fopen(tmpname, "r");
if (!f) {
ui_message("ERROR: Failed to read back temp file.", UIMSG_ERROR);
return;
}
/* calculate file size */
fseek(f, 0, SEEK_END);
size = ftell(f) + 2; /* +1 b/c size is one more than last position.
We add another byte for the null terminator */
fseek(f, 0, SEEK_SET);
/* allocate appropriately */
dstrset(&_doc->metainfo, NULL);
_doc->metainfo = zalloc(size);
/* read file data */
i = fread(_doc->metainfo, 1, size, f);
/* put the null terminator where it should be */
_doc->metainfo[i] = 0;
/* delete temp file */
unlink(tmpname);
}
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