shadow/libmisc/ttytype.c

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/*
* Copyright 1989 - 1994, Julianne Frances Haugh
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Julianne F. Haugh nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <config.h>
#include "rcsid.h"
RCSID("$Id: ttytype.c,v 1.5 1997/12/07 23:27:10 marekm Exp $")
#include <stdio.h>
#include "prototypes.h"
#include "defines.h"
#include "getdef.h"
extern char *getenv();
/*
* ttytype - set ttytype from port to terminal type mapping database
*/
void
ttytype(const char *line)
{
FILE *fp;
char buf[BUFSIZ];
char *typefile;
char *cp;
char type[BUFSIZ];
char port[BUFSIZ];
if (getenv ("TERM"))
return;
if ((typefile=getdef_str("TTYTYPE_FILE")) == NULL )
return;
if (access(typefile, F_OK))
return;
if (! (fp = fopen (typefile, "r"))) {
perror (typefile);
return;
}
while (fgets(buf, sizeof buf, fp)) {
if (buf[0] == '#')
continue;
if ((cp = strchr (buf, '\n')))
*cp = '\0';
#if defined(SUN) || defined(BSD) || defined(SUN4)
if ((sscanf (buf, "%s \"%*[^\"]\" %s", port, type) == 2 ||
sscanf (buf, "%s %*s %s", port, type) == 2) &&
strcmp (line, port) == 0)
break;
#else /* USG */
if (sscanf (buf, "%s %s", type, port) == 2 &&
strcmp (line, port) == 0)
break;
#endif
}
if (! feof (fp) && ! ferror (fp))
addenv("TERM", type);
fclose (fp);
}