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/* $Id: dict.c,v 2.1 1998/09/19 03:31:24 sgifford Exp $ */
/* Interface to dict. */
/*
Copyright (C) 1998 Scott Gifford
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
If you have any questions, comments, or compliments, feel free to contact
me at <sgifford@tir.com>.
*/
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <string.h>
#include <gtk/gtk.h>
#include <stdio.h>
#include "dict.h"
#include "utils.h"
char *dictprog=DICTPROG;
#define BUF_CHUNK 1024
#define READPIPE 0
#define WRITEPIPE 1
DEFINITIONLIST *dict_lookup(WORD *word)
{
int filedes[2];
FILE *dict_out;
char buf[BUF_CHUNK];
char *def;
int deflen,defmax;
DEFINITION *definition;
DEFINITION **defdef;
DEFINITIONLIST *deflist=NULL;
int childstat;
if (pipe(filedes) < 0)
return NULL;
/* Welcome to UNIX. */
if (!fork())
{
/* Child */
close(filedes[READPIPE]);
dup2(filedes[WRITEPIPE],STDOUT_FILENO);
execlp(dictprog,dictprog,word,NULL);
fprintf(stderr,"ERROR: Couldn't exec %s %s\n",dictprog,(char *)word);
exit(100);
}
else
{
/* Parent */
close(filedes[WRITEPIPE]);
dict_out=fdopen(filedes[READPIPE],"r");
deflen=1;
defmax=1024;
def=safe_malloc(1024);
def[0]='\0';
while (fgets(buf,1023,dict_out))
{
while ((strlen(buf)+deflen+1) > defmax)
{
def=safe_realloc(def,defmax+BUF_CHUNK);
defmax+=BUF_CHUNK;
}
strcat(def,buf);
deflen+=strlen(buf);
}
fclose(dict_out);
wait(&childstat);
if (!WIFEXITED(childstat) || (WEXITSTATUS(childstat) != 0))
{
char why[1024];
sprintf(why,"god only knows why");
if (WIFEXITED(childstat))
{
if (WEXITSTATUS(childstat) == 100)
sprintf(why,"couldn't exec %s %s",dictprog,(char *)word);
else
sprintf(why,"dict returned %d",WEXITSTATUS(childstat));
}
else if (WIFSIGNALED(childstat))
{
sprintf(why,"terminated by signal %d",WTERMSIG(childstat));
}
g_warning("dict exited abnormally: %s\nMore information may be on STDOUT/STDERR\n",why);
exit(-1);
}
else
{
definition=safe_malloc(sizeof(DEFINITION));
definition->text=def;
defdef=safe_malloc(sizeof(DEFINITION *));
*defdef=definition;
deflist=safe_malloc(sizeof(DEFINITIONLIST));
deflist->defs=defdef;
deflist->num=1;
}
}
return deflist;
}
void free_deflist(DEFINITIONLIST *deflist)
{
int i;
if (!deflist)
return;
for(i=0;i<deflist->num;i++)
{
free_def(deflist->defs[i]);
}
free(deflist);
}
void free_def(DEFINITION *def)
{
if (!def)
return;
free_if_used(def->text);
free(def);
}
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