[deliverable/binutils-gdb.git] / libiberty / rename.c

/* rename -- rename a file
   This function is in the public domain. */

/* Rename a file.  */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

int
rename (zfrom, zto)
     char *zfrom;
     char *zto;
{
  if (link (zfrom, zto) < 0)
    {
      if (errno != EEXIST)
	return -1;
      if (unlink (zto) < 0
	  || link (zfrom, zto) < 0)
	return -1;
    }
  return unlink (zfrom);
}
Commit	Line	Data
252b5132 RH	1	/* rename -- rename a file
	2	This function is in the public domain. */
	3
	4	/* Rename a file. */
	5
90aaccd1 JL	6	#ifdef HAVE_CONFIG_H
	7	#include "config.h"
	8	#endif
252b5132	9	#include <errno.h>
90aaccd1 JL	10	#ifdef HAVE_UNISTD_H
	11	#include <unistd.h>
	12	#endif
252b5132 RH	13
	14	int
	15	rename (zfrom, zto)
	16	char *zfrom;
	17	char *zto;
	18	{
	19	if (link (zfrom, zto) < 0)
	20	{
	21	if (errno != EEXIST)
	22	return -1;
	23	if (unlink (zto) < 0
	24	\|\| link (zfrom, zto) < 0)
	25	return -1;
	26	}
	27	return unlink (zfrom);
	28	}