xref: /onnv-gate/usr/src/cmd/sendmail/libsm/string.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * Copyright (c) 2001 Sendmail, Inc. and its suppliers.
3*0Sstevel@tonic-gate  *      All rights reserved.
4*0Sstevel@tonic-gate  *
5*0Sstevel@tonic-gate  * By using this file, you agree to the terms and conditions set
6*0Sstevel@tonic-gate  * forth in the LICENSE file which can be found at the top level of
7*0Sstevel@tonic-gate  * the sendmail distribution.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  */
10*0Sstevel@tonic-gate 
11*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
12*0Sstevel@tonic-gate 
13*0Sstevel@tonic-gate #include <sm/gen.h>
14*0Sstevel@tonic-gate SM_RCSID("@(#)$Id: string.c,v 1.1 2001/02/15 21:04:50 ca Exp $")
15*0Sstevel@tonic-gate 
16*0Sstevel@tonic-gate #include <ctype.h>
17*0Sstevel@tonic-gate #include <errno.h>
18*0Sstevel@tonic-gate 
19*0Sstevel@tonic-gate #include <sm/string.h>
20*0Sstevel@tonic-gate 
21*0Sstevel@tonic-gate /*
22*0Sstevel@tonic-gate **  STRIPQUOTES -- Strip quotes & quote bits from a string.
23*0Sstevel@tonic-gate **
24*0Sstevel@tonic-gate **	Runs through a string and strips off unquoted quote
25*0Sstevel@tonic-gate **	characters and quote bits.  This is done in place.
26*0Sstevel@tonic-gate **
27*0Sstevel@tonic-gate **	Parameters:
28*0Sstevel@tonic-gate **		s -- the string to strip.
29*0Sstevel@tonic-gate **
30*0Sstevel@tonic-gate **	Returns:
31*0Sstevel@tonic-gate **		none.
32*0Sstevel@tonic-gate **
33*0Sstevel@tonic-gate **	Side Effects:
34*0Sstevel@tonic-gate **		none.
35*0Sstevel@tonic-gate */
36*0Sstevel@tonic-gate 
37*0Sstevel@tonic-gate void
38*0Sstevel@tonic-gate stripquotes(s)
39*0Sstevel@tonic-gate 	char *s;
40*0Sstevel@tonic-gate {
41*0Sstevel@tonic-gate 	register char *p;
42*0Sstevel@tonic-gate 	register char *q;
43*0Sstevel@tonic-gate 	register char c;
44*0Sstevel@tonic-gate 
45*0Sstevel@tonic-gate 	if (s == NULL)
46*0Sstevel@tonic-gate 		return;
47*0Sstevel@tonic-gate 
48*0Sstevel@tonic-gate 	p = q = s;
49*0Sstevel@tonic-gate 	do
50*0Sstevel@tonic-gate 	{
51*0Sstevel@tonic-gate 		c = *p++;
52*0Sstevel@tonic-gate 		if (c == '\\')
53*0Sstevel@tonic-gate 			c = *p++;
54*0Sstevel@tonic-gate 		else if (c == '"')
55*0Sstevel@tonic-gate 			continue;
56*0Sstevel@tonic-gate 		*q++ = c;
57*0Sstevel@tonic-gate 	} while (c != '\0');
58*0Sstevel@tonic-gate }
59