usr/src/cmd/sendmail/libsm/string.c

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