Initial commit

1 files changed, 59 insertions, 0 deletions

diff --git a/unix/shlib/aout.c b/unix/shlib/aout.c
new file mode 100644
index 00000000..832fc42e
--- /dev/null
+++ b/unix/shlib/aout.c
@@ -0,0 +1,59 @@
+/* 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);
+}