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Subject: bin/23549: ldd invokes 'lseek' incorrectly
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>Number:         23549
>Category:       bin
>Synopsis:       ldd invokes 'lseek' incorrectly
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Dec 14 10:10:02 PST 2000
>Closed-Date:
>Last-Modified:
>Originator:     Dave Cornelius
>Release:        FreeBSD 4.1-20000929-STABLE i386
>Organization:
Packet Design
>Environment:

	see above.

>Description:

	ldd invokes 'lseek' with an offset in the 3rd arg when
	trying to move to the start of the program header
	array in an elf file.

>How-To-Repeat:

	inspect the code, or:
	"truss ldd yourprog"   and watch for the EINVAL from lseek.

>Fix:

===================================================================
RCS file: /home/cvs/freebsd/src/usr.bin/ldd/ldd.c,v
retrieving revision 1.18
diff -u -r1.18 ldd.c
--- ldd.c	1999/08/28 01:02:43	1.18
+++ ldd.c	2000/12/14 18:00:56
@@ -153,7 +153,7 @@
 				warnx("%s: can't read program header", *argv);
 				file_ok = 0;
 			}
-			lseek(fd, 0, ehdr.e_phoff);
+			lseek(fd, ehdr.e_phoff, SEEK_SET);
 			for (i = 0; i < ehdr.e_phnum; i++) {
 				if (read(fd, &phdr, ehdr.e_phentsize)
 				   != sizeof phdr) {


>Release-Note:
>Audit-Trail:
>Unformatted:


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