NAME

nlist − get entries from name list

SYNOPSIS

#include <a.out.h>

int nlist (filename, nl)
char ∗filename;
struct nlist ∗nl[ ];

DESCRIPTION

Nlist examines the name list in the executable file 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 nl consists of an array of structures containing names of variables, types and values.  The list is terminated with a null name; that is, a null string is in the name position of the structure.  Each variable name is looked up in the name list of the file.  If the name is found, the type and value of the name are inserted in the next two fields.  If the name is not found, both entries are set to 0.  See a.out(4) for a discussion of the symbol table structure.

This subroutine is useful for examining the system name list kept in the file /vmunix.  In this way programs can obtain system addresses that are up to date. 

SEE ALSO

a.out(4). 

DIAGNOSTICS

All type entries are set to 0 if the file cannot be read or if it doesn’t contain a valid name list. 

Nlist returns −1 upon error; otherwise it returns 0. 

Version 2.4  —  May 08, 1986