# HG changeset patch
# User Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
# Date 1395467582 0
# Node ID c15cd3d695c0aadfca348a34ce304acf1b7ff211
# Parent  6799a5c57a49f2aefb1dc2f7a545e0cb8596e609
tiobjd: successful parsing of the section header table

diff -r 6799a5c57a49 -r c15cd3d695c0 ticoff/Makefile
--- a/ticoff/Makefile	Sat Mar 22 02:29:22 2014 +0000
+++ b/ticoff/Makefile	Sat Mar 22 05:53:02 2014 +0000
@@ -1,8 +1,8 @@
 CC=	gcc
 CFLAGS=	-O2
 PROG=	tiobjd
-OBJS=	basics.o globals.o main.o
-HDRS=	filestruct.h globals.h
+OBJS=	basics.o globals.o main.o tables.o
+HDRS=	filestruct.h globals.h intstruct.h
 
 all:	${PROG}
 
diff -r 6799a5c57a49 -r c15cd3d695c0 ticoff/globals.c
--- a/ticoff/globals.c	Sat Mar 22 02:29:22 2014 +0000
+++ b/ticoff/globals.c	Sat Mar 22 05:53:02 2014 +0000
@@ -3,7 +3,6 @@
  */
 
 #include <sys/types.h>
-#include "filestruct.h"
 
 char *objfilename;
 u_char *filemap;
@@ -15,3 +14,5 @@
 struct external_syment *symtab_raw;
 unsigned nsymtab;
 unsigned strtab_offset;
+
+struct internal_scnhdr *sections;
diff -r 6799a5c57a49 -r c15cd3d695c0 ticoff/globals.h
--- a/ticoff/globals.h	Sat Mar 22 02:29:22 2014 +0000
+++ b/ticoff/globals.h	Sat Mar 22 05:53:02 2014 +0000
@@ -12,3 +12,5 @@
 extern struct external_syment *symtab_raw;
 extern unsigned nsymtab;
 extern unsigned strtab_offset;
+
+extern struct internal_scnhdr *sections;
diff -r 6799a5c57a49 -r c15cd3d695c0 ticoff/intstruct.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ticoff/intstruct.h	Sat Mar 22 05:53:02 2014 +0000
@@ -0,0 +1,15 @@
+/*
+ * The structures defined in this header file
+ * are internal to our utility.
+ */
+
+struct internal_scnhdr {
+	char		*name;
+	unsigned	size;
+	unsigned	data_offset;
+	unsigned	reloc_offset;
+	unsigned	line_offset;
+	unsigned	nreloc;
+	unsigned	nlineent;
+	unsigned	flags;
+};
diff -r 6799a5c57a49 -r c15cd3d695c0 ticoff/main.c
--- a/ticoff/main.c	Sat Mar 22 02:29:22 2014 +0000
+++ b/ticoff/main.c	Sat Mar 22 05:53:02 2014 +0000
@@ -7,9 +7,9 @@
 #include <stdlib.h>
 #include <string.h>
 #include <strings.h>
-#include "filestruct.h"
 #include "globals.h"
 
+extern int cmd_sechdr();
 extern int dump_filehdr_info();
 
 static struct cmdtab {
@@ -17,6 +17,7 @@
 	int	(*func)();
 } cmdtab[] = {
 	{"hdr", dump_filehdr_info},
+	{"sechdr", cmd_sechdr},
 	{0, 0}
 };
 
diff -r 6799a5c57a49 -r c15cd3d695c0 ticoff/tables.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ticoff/tables.c	Sat Mar 22 05:53:02 2014 +0000
@@ -0,0 +1,95 @@
+/*
+ * This C module will contain functions for the initial parsing
+ * of the section and symbol tables.
+ */
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include "filestruct.h"
+#include "intstruct.h"
+#include "globals.h"
+
+extern unsigned get_u16(), get_u32();
+
+static char *
+get_secorsym_name(ptr)
+	u_char *ptr;
+{
+	char *alloc;
+
+	if (ptr[0]) {
+		if (ptr[7]) {
+			alloc = malloc(9);
+			if (!alloc) {
+				perror("malloc");
+				exit(1);
+			}
+			bcopy(ptr, alloc, 8);
+			alloc[8] = '\0';
+			return(alloc);
+		} else
+			return((char *) ptr);
+	}
+	if (ptr[1] || ptr[2] || ptr[3]) {
+		fprintf(stderr, "error: malformed name in %s at offset 0x%x\n",
+			objfilename, ptr - filemap);
+		exit(1);
+	}
+	return(filemap + strtab_offset + get_u32(ptr+4));
+}
+
+get_int_section_table()
+{
+	unsigned n;
+
+	sections = malloc(sizeof(struct internal_scnhdr) * nsections);
+	if (!sections) {
+		perror("malloc");
+		exit(1);
+	}
+	for (n = 0; n < nsections; n++) {
+		sections[n].name = get_secorsym_name(sections_raw[n].s_name);
+		if (get_u32(sections_raw[n].s_paddr))
+			fprintf(stderr,
+				"warning: section #%u (%s) has nonzero paddr\n",
+				n, sections[n].name);
+		if (get_u32(sections_raw[n].s_vaddr))
+			fprintf(stderr,
+				"warning: section #%u (%s) has nonzero vaddr\n",
+				n, sections[n].name);
+		sections[n].size = get_u32(sections_raw[n].s_size);
+		sections[n].data_offset = get_u32(sections_raw[n].s_scnptr);
+		sections[n].reloc_offset = get_u32(sections_raw[n].s_relptr);
+		sections[n].line_offset = get_u32(sections_raw[n].s_lnnoptr);
+		sections[n].nreloc = get_u32(sections_raw[n].s_nreloc);
+		sections[n].nlineent = get_u32(sections_raw[n].s_nlnno);
+		sections[n].flags = get_u32(sections_raw[n].s_flags);
+		if (get_u16(sections_raw[n].s_reserved))
+			fprintf(stderr,
+	"warning: section #%u (%s): some nonzero value in s_reserved bytes\n",
+				n, sections[n].name);
+		if (get_u16(sections_raw[n].s_page))
+			fprintf(stderr,
+	"warning: section #%u (%s): some nonzero value in s_page bytes\n",
+				n, sections[n].name);
+	}
+}
+
+cmd_sechdr()
+{
+	unsigned n;
+	struct internal_scnhdr *inf;
+
+	get_int_section_table();
+	for (n = 0; n < nsections; n++) {
+		inf = sections + n;
+		printf("#%d: %s size=%u, flags=0x%x\n", n, inf->name,
+			inf->size, inf->flags);
+		printf("\t%u reloc, %u line entries\n",
+			inf->nreloc, inf->nlineent);
+	}
+	exit(0);
+}