libelf usage ?

[bch <brad.harder%gmail.com@localhost>]

I feel pretty comfortable posting this here --

working w/ libelf, and getting select failures on librump_* archives
(trying to list symbol tables) -- nm *does* work -- but for _all_ the
other .a files I process, the following works fine -- is there
something with our ar(1) or elf(3) that they're incompatible w/ ea.
other ?

#include <libelf.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>

int
main(int argc, char *argv[])
{
        Elf            *elf, *ae;
        Elf_Arsym      *symtbl;
        int             fd;

        if (2!=argc) {
          fprintf(stderr, "Usage: %s <ar_file>\n", argv[0]);
          exit(1);
        }

        elf_version(EV_CURRENT);
        fd = open(argv[1], O_RDONLY);

        elf = elf_begin(fd, ELF_C_READ, (Elf *) NULL);

        symtbl = elf_getarsym(elf, NULL);
        if (NULL != symtbl) {
                while (symtbl->as_name) {
                        fprintf(stdout, "name: %s\n", symtbl->as_name);
                        symtbl++;
                }
                close(fd);
                elf_end(elf);
        } else {
                fprintf(stderr, "symbol table error.\n");
                exit(1);
        }
}