4.3BSD - /usr/src/usr.lib/libU77/symlnk_.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:  *	@(#)symlnk_.c	5.1	6/7/85
   7:  */
   8: 
   9: /*
  10:  * make a symbolic link to a file
  11:  *
  12:  * calling sequence:
  13:  *	ierror = symlnk(name1, name2)
  14:  * where:
  15:  *	name1 is the pathname of an existing file
  16:  *	name2 is a pathname that will become a symbolic link to name1
  17:  *	ierror will be 0 if successful; a system error code otherwise.
  18:  */
  19: 
  20: #include <sys/param.h>
  21: #include "../libI77/f_errno.h"
  22: 
  23: #ifndef MAXPATHLEN
  24: #define MAXPATHLEN  128
  25: #endif
  26: 
  27: long symlnk_(name1, name2, n1len, n2len)
  28: char *name1, *name2;
  29: long n1len, n2len;
  30: {
  31:     char buf1[MAXPATHLEN];
  32:     char buf2[MAXPATHLEN];
  33: 
  34:     if (n1len >= sizeof buf1 || n2len >= sizeof buf2)
  35:         return((long)(errno=F_ERARG));
  36:     g_char(name1, n1len, buf1);
  37:     g_char(name2, n2len, buf2);
  38:     if (buf1[0] == '\0' || buf2[0] == '\0')
  39:         return((long)(errno=F_ERARG));
  40:     if (symlink(buf1, buf2) != 0)
  41:         return((long)errno);
  42:     return(0L);
  43: }

Defined functions

Defined macros