4.3BSD - /usr/src/usr.lib/libU77/link_.c

   1: /*
   2:  * Copyright (c) 1980 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  *
   6:  *	@(#)link_.c	5.1	6/7/85
   7:  */
   8: 
   9: /*
  10:  * make a link to an existing file
  11:  *
  12:  * calling sequence:
  13:  *	ierror = link(name1, name2)
  14:  * where:
  15:  *	name1 is the pathname of an existing file
  16:  *	name2 is a pathname to be linked to file name1
  17:  *	ierror will be 0 if successful; a system error code otherwise.
  18:  */
  19: 
  20: #include "../libI77/f_errno.h"
  21: #include <sys/param.h>
  22: #ifndef MAXPATHLEN
  23: #define MAXPATHLEN  128
  24: #endif
  25: 
  26: long link_(name1, name2, n1len, n2len)
  27: char *name1, *name2;
  28: long n1len, n2len;
  29: {
  30:     char buf1[MAXPATHLEN];
  31:     char buf2[MAXPATHLEN];
  32: 
  33:     if (n1len >= sizeof buf1 || n2len >= sizeof buf2)
  34:         return((long)(errno=F_ERARG));
  35:     g_char(name1, n1len, buf1);
  36:     g_char(name2, n2len, buf2);
  37:     if (buf1[0] == '\0' || buf2[0] == '\0')
  38:         return((long)(errno=F_ERARG));
  39:     if (link(buf1, buf2) != 0)
  40:         return((long)errno);
  41:     return(0L);
  42: }

Defined functions

Defined macros