retrieve symbol table name list from an executable file
char *filename, struct
nlist() function retrieves name list entries from
the symbol table of an executable file. (See
elf(5).) 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 always has its
n_name field set to
The number of invalid entries is returned if successful; otherwise, if the file
filename does not exist or is not an executable, the
returned value is -1.
nlist() function first appeared in
Version 3 AT&T UNIX.