ref: 0665b2980f119a119f4c158a7d82267c640f953f
parent: 6ae55e2a61f1de10f7d41e37ff5bf9fa532532be
author: Roberto E. Vargas Caballero <k0ga@shike2.com>
date: Mon Nov 27 15:08:33 EST 2017
[objdump] Add printsections() This function prints all the sections of the file.
--- a/objdump/main.c
+++ b/objdump/main.c
@@ -68,6 +68,33 @@
}
}
+static int
+printsections(struct myrohdr *hdr, FILE *fp)
+{+ size_t n, i;
+ struct myrosect sect;
+
+ puts("sections:");+ n = hdr->secsize / MYROSECT_SIZ;
+ for (i = 0; i < n; ++i) {+ if (rdmyrosec(fp, §) < 0)
+ return -1;
+ printf("\tname: %lu (\"%s\")\n"+ "\tflags: %x\n"
+ "\tfill: %x\n"
+ "\taligment: %u\n"
+ "\toffset: %llu\n"
+ "\tlength: %llu\n\n",
+ sect.name, getstring(sect.name),
+ sect.flags,
+ sect.fill,
+ sect.aligment,
+ sect.offset,
+ sect.len);
+ }
+ return 0;
+}
+
int
main(int argc, char *argv[])
{@@ -84,8 +111,10 @@
goto wrong_file;
if (rdmyrohdr(fp, &hdr) < 0)
goto wrong_file;
- if (hdr.strsize > SIZE_MAX)
+ if (hdr.strsize > SIZE_MAX ||
+ hdr.secsize > SIZE_MAX / MYROSECT_SIZ) {goto overflow;
+ }
strsiz = hdr.strsize;
if (strsiz > 0) {@@ -97,6 +126,8 @@
printhdr(&hdr);
printstrings(&hdr);
+ if (printsections(&hdr, fp) < 0)
+ goto wrong_file;
goto close_file;