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[objdump] Add printstrings()

This function prints the string table

--- a/objdump/main.c

+++ b/objdump/main.c

@@ -49,6 +49,25 @@

 	       hdr->relsize);

 }

+static void

+printstrings(struct myrohdr *hdr)

+{

+	size_t off, begin;;

+	char *s = NULL;

+

+	puts("strings:");

+	for (off = 0; off < strsiz; off++) {

+		if (s == NULL) {

+			s = &strings[off];

+			begin = off;

+		}

+		if (strings[off] == '\0') {

+			printf("\t[%zd] \"%s\"\n", begin, s);

+			s = NULL;

+		}

+	}

+}

+

 int

 main(int argc, char *argv[])

 {

@@ -77,6 +96,7 @@

 		}

 		printhdr(&hdr);

+		printstrings(&hdr);

 		goto close_file;