nlist(3) [osx man page]

NLIST(3)						   BSD Library Functions Manual 						  NLIST(3)

NAME

     nlist -- retrieve symbol table name list from an executable file

SYNOPSIS

     #include <mach-o/nlist.h>

     int
     nlist(const char *filename, struct nlist *nl);

DESCRIPTION

     The nlist() function retrieves name list entries from the symbol table of an executable file. (See <mach-o/nlist.h>) The argument nl is set
     to reference the beginning of the list.  The list is preened of binary and invalid data; if an entry in the name list is valid, the n_type
     and n_value for the entry are copied into the list referenced by nl.  No other data is copied.  The last entry in the list is always NULL.

RETURN VALUES

     The number of invalid entries is returned if successful; otherwise, if the file filename does not exist or is not executable, the returned
     value is -1.

SEE ALSO

     Mach-O(5)

HISTORY

     A nlist() function appeared in Version 6 AT&T UNIX.

Darwin								  April 19, 1994							    Darwin

nlist(3UCB)					     SunOS/BSD Compatibility Library Functions					       nlist(3UCB)

NAME

       nlist - get entries from symbol table

SYNOPSIS

       /usr/ucb/cc [ flag ... ] file ...
       #include <nlist.h>

       int nlist(filename, nl)
       char *filename;
       struct nlist *nl;

DESCRIPTION

       nlist() examines the symbol table from the executable image whose name is pointed to by filename, and selectively extracts a list of values
       and puts them in the array of nlist structures pointed to by nl. The name list pointed to by nl consists of an array of structures contain-
       ing  names,  types and values. The n_name field of each such structure is taken to be a pointer to a character string representing a symbol
       name. The list is terminated by an entry with a NULL pointer (or a pointer to a NULL string) in the n_name field. For each entry in nl,	if
       the  named  symbol  is present in the executable image's symbol table, its value and type are placed in the n_value and n_type fields. If a
       symbol cannot be located, the corresponding n_type field of nl is set to zero.

RETURN VALUES

       Upon normal completion, nlist() returns the number of symbols that were not located in the  symbol  table.  If  an  error  occurs,  nlist()
       returns -1 and sets all of the n_type fields in members of the array pointed to by nl to zero.

SEE ALSO

       cc(1B), nlist(3ELF), a.out(4)

NOTES

       Use of these interfaces should be restricted to only applications written on BSD platforms.  Use of these interfaces with any of the system
       libraries or in multi-thread applications is unsupported.

       Only the n_value field is compatibly set.  Other fields in the nlist structure are filled with the  ELF	(Executable  and  Linking  Format)
       values (see  nlist(3ELF) and  a.out(4)).

SunOS 5.11							    30 Oct 2007 						       nlist(3UCB)