kc3-lang/libbsd/src/progname.c

• Show log

  Commit

• Hash : 5ba8c5ba
  Author :
  Date : 2018-03-05T00:37:47
  

  progname: Port to Windows
  
  Define the directory separator depending on the system targetted.
  
  Reported-by: Progyan Bhattacharya <progyanb@acm.org>
  

Download

• src/progname.c

• /*
   * Copyright © 2006 Robert Millan
   * Copyright © 2010-2012 Guillem Jover <guillem@hadrons.org>
   *
   * 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. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED ``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
   * THE AUTHOR 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.
   */
  
  /*
   * Rejected in glibc
   * <https://sourceware.org/ml/libc-alpha/2006-03/msg00125.html>.
   */
  
  #include <errno.h>
  #include <string.h>
  #include <stdlib.h>
  
  #if defined(_WIN32) || defined(__WIN32__) || defined(__WINDOWS__)
  #define LIBBSD_IS_PATHNAME_SEPARATOR(c) ((c) == '/' || (c) == '\\')
  #else
  #define LIBBSD_IS_PATHNAME_SEPARATOR(c) ((c) == '/')
  #endif
  
  #ifdef HAVE___PROGNAME
  extern const char *__progname;
  #else
  static const char *__progname = NULL;
  #endif
  
  const char *
  getprogname(void)
  {
  #if defined(HAVE_PROGRAM_INVOCATION_SHORT_NAME)
  	if (__progname == NULL)
  		__progname = program_invocation_short_name;
  #elif defined(HAVE_GETEXECNAME)
  	/* getexecname(3) returns an absolute pathname, normalize it. */
  	if (__progname == NULL)
  		setprogname(getexecname());
  #endif
  
  	return __progname;
  }
  
  void
  setprogname(const char *progname)
  {
  	size_t i;
  
  	for (i = strlen(progname); i > 0; i--) {
  		if (LIBBSD_IS_PATHNAME_SEPARATOR(progname[i - 1])) {
  			__progname = progname + i;
  			return;
  		}
  	}
  	__progname = progname;
  }
  

Download