IABSD.fr/xenocara/app/xsm/misc.c

Branch : - branch - master - tag -

• Show log

  Commit

• Author : matthieu
  Date : 2022-06-26 10:47:16
  Hash : 649fd50c
  Message : Update xsm to version 1.0.5 Bug fixes and gcc warnings removals.

• app/xsm/misc.c

• /* $Xorg: misc.c,v 1.4 2001/02/09 02:06:01 xorgcvs Exp $ */
  /******************************************************************************
  
  Copyright 1993, 1998  The Open Group
  
  Permission to use, copy, modify, distribute, and sell this software and its
  documentation for any purpose is hereby granted without fee, provided that
  the above copyright notice appear in all copies and that both that
  copyright notice and this permission notice appear in supporting
  documentation.
  
  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  
  Except as contained in this notice, the name of The Open Group shall not be
  used in advertising or otherwise to promote the sale, use or other dealings
  in this Software without prior written authorization from The Open Group.
  ******************************************************************************/
  /* $XFree86: xc/programs/xsm/misc.c,v 1.5 2001/07/25 15:05:29 dawes Exp $ */
  
  #include "xsm.h"
  
  
  #ifndef HAVE_PUTENV
  /*
   * define our own putenv() if the system doesn't have one.
   * putenv(s): place s (a string of the form "NAME=value") in
   * the environment; replacing any existing NAME.  s is placed in
   * environment, so if you change s, the environment changes (like
   * putenv on a sun).  Binding removed if you putenv something else
   * called NAME.
   */
  int
  putenv(char *s)
  {
      char *v;
      int varlen, idx;
      char **newenv;
      static int virgin = 1; /* true while "environ" is a virgin */
  
      v = strchr(s, '=');
      if(v == 0)
  	return 0; /* punt if it's not of the right form */
      varlen = (v + 1) - s;
  
      for (idx = 0; environ[idx] != 0; idx++) {
  	if (strncmp(environ[idx], s, varlen) == 0) {
  	    if(v[1] != 0) { /* true if there's a value */
  		environ[idx] = s;
  		return 0;
  	    } else {
  		do {
  		    environ[idx] = environ[idx+1];
  		} while(environ[++idx] != 0);
  		return 0;
  	    }
  	}
      }
      
      /* add to environment (unless no value; then just return) */
      if(v[1] == 0)
  	return 0;
      if(virgin) {
  	register i;
  
  	newenv = (char **) XtMalloc((unsigned) ((idx + 2) * sizeof(char*)));
  	if(newenv == 0)
  	    return -1;
  	for(i = idx-1; i >= 0; --i)
  	    newenv[i] = environ[i];
  	virgin = 0;     /* you're not a virgin anymore, sweety */
      } else {
  	newenv = (char **) realloc((char *) environ,
  				   (unsigned) ((idx + 2) * sizeof(char*)));
  	if (newenv == 0)
  	    return -1;
      }
  
      environ = newenv;
      environ[idx] = s;
      environ[idx+1] = 0;
      
      return 0;
  }
  
  #endif /* NOPUTENV */
  
  
  
  int
  strbw(const char *a, const char *b)
  {
      return !strncmp (a, b, strlen (b));
  }
  
  
  
  void
  nomem(void)
  {
      fprintf (stderr, "Insufficient memory.\n");
      exit (255);
  }