topics.c
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	#include "defines.h"
	#include "vars.h"
	#include "prototypes.h"

	/**
	* Remove the autotopic for a particular channel.
	* 6/23/00 Dan:
	* - Method argument is now pointer to const data
	* - All variables are now initialized when declared
	* - Changed size of b to be power of 2
	* - Changed variable types of toggle and x in accordance
	* with their use
	*/
	void
	del_autotopic (const char *chan)
	{
	FILE *fp;
	char b[STRING_LONG] = { 0 }, r_chan = 0, r_data = 0;
	bool toggle = false;
	size_t x = 0;

	unlink (TMP_FILE);
	fp = fopen (AUTOTOPIC_F, "r");
	if (NULL == fp)
	{
	return;
	}

	while (fgets (b, STRING_LONG, fp))
	{
	x++;
	stripline (b);

	r_chan = strtok (b, " ");
	r_data = strtok (NULL, "");

	if (stricmp (r_chan, chan) == 0)
	{
	/* Found the channel */
	toggle = true;
	}
	else
	{
	db_log (TMP_FILE, "%s %s\n", r_chan, r_data);
	}
	}

	fclose (fp);
	if (x == 1 && toggle)
	{
	/* The autotopic file is now empty */
	unlink (AUTOTOPIC_F);
	unlink (TMP_FILE);
	return;
	}

	if (toggle)
	{
	/* We found the topic, change the temp file to the
	* the name of the autotopic file */
	rename (TMP_FILE, AUTOTOPIC_F);
	}
	else
	{
	/* We were unable to find the channel, just
	* return */
	unlink (TMP_FILE);
	}
	}

	void
	do_autotopics (void)
	{
	FILE *fp;
	char b[STRING_LONG] = { 0 }, r_chan = NULL, r_data = NULL;

	if ((fp = fopen (AUTOTOPIC_F, "r")) == NULL)
	return;
	while (fgets (b, STRING_LONG, fp))
	{
	stripline (b);
	r_chan = strtok (b, " ");
	r_data = strtok (NULL, "");
	if (*r_data != '0')
	{
	db_sleep (1);
	S ("TOPIC %s :%s\n", r_chan, r_data);
	}
	}
	fclose (fp);
	}

	long
	ifexist_autotopic (char *chan)
	{
	FILE *fp;
	char b[STRING_LONG] = { 0 }, *r_chan = NULL;

	if ((fp = fopen (AUTOTOPIC_F, "r")) == NULL)
	return -1;
	while (fgets (b, STRING_LONG, fp))
	{
	stripline (b);
	if (*b == '/')
	continue;
	r_chan = strtok (b, " ");
	if (stricmp (r_chan, chan) == 0)
	{
	fclose (fp);
	return 1; /* exists */
	}
	}
	fclose (fp);
	return 0; /* doesn't exist */
	}

	void
	set_autotopic (char source, char target, char *topic)
	{
	long exist = 0;

	exist = ifexist_autotopic (target);
	if (exist == 0 && *topic == '0')
	{ /* never existed, lets humor
	* the guy */
	L007 (source, target);
	return;
	}
	else if (exist == 1 && *topic == '0')
	{ /* delete it! */
	L008 (source, target);
	S ("TOPIC %s :\n", target);
	del_autotopic (target);
	return;
	}
	if (strlen (topic) >= 400) /* make sure no overflow */
	topic[400] = '\0';
	if (exist == 0)
	{ /* no such autotopic, so add it */
	L009 (source, target, topic);
	db_log (AUTOTOPIC_F, "%s %s\n", target, topic);
	return;
	}
	/* only thing left is if topic exists and you want to update it */
	del_autotopic (target);
	L010 (source, target, topic);
	S ("TOPIC %s :%s\n", target, topic);
	db_log (AUTOTOPIC_F, "%s %s\n", target, topic);
	}

	char *
	revert_topic (char *input)
	{
	char *ptr = NULL, b[STRING_SHORT] = { 0 };

	ptr = strtok (input, "+");

	snprintf (f_tmp, sizeof (f_tmp), "%s", ptr);

	if (ptr != NULL)
	{
	while (ptr != NULL)
	{
	ptr = strtok (NULL, "+");
	if (ptr != NULL)
	{
	snprintf (b, sizeof (b), "%s %s", f_tmp, ptr);
	snprintf (f_tmp, sizeof (f_tmp), "%s", b);
	}
	}
	return f_tmp;
	}
	else
	return f_tmp;
	}

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