osf1 man page for get_proplist_entry

get_proplist_entry(3)					     Library Functions Manual					     get_proplist_entry(3)

NAME
       get_proplist_entry - Initializes pointers to the corresponding entries in an Extended File Attribute buffer

SYNOPSIS
       #include  <sys/proplist.h> int get_proplist_entry (	char **name,	  int **flags,	    int **value_size,	   char **value,      char
       **bufptr );

PARAMETERS
	      Points to the Extended File Attribute name.

	      Points to the system-wide file attributes for Extended File Attribute entries in the Property List.

	      Points to the size in bytes of the Extended File Attribute value.

	      Points to the Extended File Attribute value.

	      Points to the Extended File Attribute buffer.

DESCRIPTION
       The get_proplist_entry function initializes the **name, **value_size, and **value parameters with the corresponding values in the  Extended
       File  Attribute buffer pointed to by **bufptr.  The function can be called repeatedly, because it advances the Extended File Attribute buf-
       fer pointer **bufptr to the end of the current entry.  An Extended File Attribute is a name and value pair that is contained in a variable-
       sized  structure  called  a  Property  List.   A  Property  List is part of a file's metadata and can contain abstract name and value pairs
       (Extended File Attributes) that can be set either by the operating system (for example, ACLs and privileges) or by a user-level application
       (for example, PC File Attributes).

       This function should be used to parse the Extended File Attribute buffer returned by the getproplist(3) function.

EXAMPLES
#include <sys/proplist.h> main() { char *ptr, *buf, *name, *value; int	*value_len, *flags, buffer_size, min_buffer_size, ret, nbytes; struct pro-
plistname_args; static char *names[] = {      "primary_name",	   "secondary_name",	  "" }; /*
 * How big a buffer do I need to store my name and value
 * pair in a property list ?
 */ buffer_size = sizeof_proplist_entry("primary_name", 18); buffer_size += sizeof_proplist_entry("secondary_name", 13); /*
 * Malloc the buffer
 */ buf = ptr = (char *)malloc(buffer_size);
	     .
	     .
	     .
again: /*
 * Call the system call to load buffer with property list
 * entries.
 */ ret = getproplist("/tmp/foo",  &getargs,  buffer_size,  buf,	       &min_buffer_size);  if  (ret  <	0)  {	    perror("getproplist");
     free(buf);      exit(1); } /*
 * If buffer_size is not sufficient to store the name and value
 * pairs, malloc a bigger buffer and try again.
 */ if (ret == 0 && min_buffer_size) {
		free(buf);
		buf = (char *)malloc(min_buffer_size);
		buffer_size = min_buffer_size;
		goto again; } /*
 * Buffer contains ret bytes of name and value pairs
 */  ptr  = buf; while (ret > 0) {	/*	 * Call getproplist_entry to initialize name and value	     * pointers to entries position within
buffer.        */      ret -= get_proplist_entry(&name, &flags, &value_len, &value,			  &ptr);      printf("name %s value len %d
value %s0,	     name, *value_len, value); }
	     .
	     .
	     .

RETURN VALUES
       If successful, the function returns the size of the current Extended File Attribute in the Property List.

RELATED INFORMATION
       Functions: add_proplist_entry(3), delproplist(3), fdelproplist(3), fgetproplist(3), fsetproplist(3), get_proplist_entry(3), getproplist(3),
       setproplist(3), sizeof_proplist_entry(3).

       Files: proplist(4), sys/proplist.h.

       delim off

															     get_proplist_entry(3)