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/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
*/
#include <stdio.h>
#include <a.out.h>
/* AOUT -- Examine the header of a AOUT file.
*/
main (argc, argv)
int argc;
char *argv[];
{
struct exec fh;
int fd;
if (argc < 2) {
fprintf (stderr, "Usage: aout <filename>\n");
exit (0);
}
if ((fd = open (argv[1], 0)) == -1) {
fprintf (stderr, "cannot open %s\n", argv[1]);
exit (1);
}
/* Show file header. */
if (read (fd, &fh, sizeof(fh)) != sizeof(fh))
goto readerr;
else if (fh.a_magic != ZMAGIC) {
fprintf (stderr, "not a page-aligned executable format file\n");
/* exit (2); */
}
printf ("File header:\n");
printf ("%16s: %10d %10x %012o\n",
"a_magic", fh.a_magic, fh.a_magic, fh.a_magic);
printf ("%16s: %10d %10x %012o\n",
"a_text", fh.a_text, fh.a_text, fh.a_text);
printf ("%16s: %10d %10x %012o\n",
"a_data", fh.a_data, fh.a_data, fh.a_data);
printf ("%16s: %10d %10x %012o\n",
"a_bss", fh.a_bss, fh.a_bss, fh.a_bss);
printf ("%16s: %10d %10x %012o\n",
"a_syms", fh.a_syms, fh.a_syms, fh.a_syms);
printf ("%16s: %10d %10x %012o\n",
"a_entry", fh.a_entry, fh.a_entry, fh.a_entry);
printf ("%16s: %10d %10x %012o\n",
"a_trsize", fh.a_trsize, fh.a_trsize, fh.a_trsize);
printf ("%16s: %10d %10x %012o\n",
"a_drsize", fh.a_drsize, fh.a_drsize, fh.a_drsize);
fflush (stdout);
close (fd);
exit (0);
readerr:
fprintf (stderr, "file read error\n");
exit (4);
}
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