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authorwosch <wosch@FreeBSD.org>1998-08-24 16:25:30 +0000
committerwosch <wosch@FreeBSD.org>1998-08-24 16:25:30 +0000
commit184c377af2dc581f60d15b7a84651cd16c04f83c (patch)
tree97b130473b38b244be4d269044f8084332bcb7bc /usr.bin
parent8a3c521f04ee9ad807d4c737f050230cb04ce36d (diff)
downloadFreeBSD-src-184c377af2dc581f60d15b7a84651cd16c04f83c.zip
FreeBSD-src-184c377af2dc581f60d15b7a84651cd16c04f83c.tar.gz
Check the text segment size of the executable and the process. If
not equal, the command line arguments are wrong. E.g.: $./gcore /bin/sh 1761 $ ./gcore /usr/tmp/chroot/bin/sh 1761 gcore: The executable /usr/tmp/chroot/bin/sh does not belong to process 1761! Text segment size (in bytes): executable 303104, process 294912
Diffstat (limited to 'usr.bin')
-rw-r--r--usr.bin/gcore/aoutcore.c10
-rw-r--r--usr.bin/gcore/gcore.c10
2 files changed, 18 insertions, 2 deletions
diff --git a/usr.bin/gcore/aoutcore.c b/usr.bin/gcore/aoutcore.c
index 3f8ccb9..46ef21e 100644
--- a/usr.bin/gcore/aoutcore.c
+++ b/usr.bin/gcore/aoutcore.c
@@ -42,7 +42,7 @@ static const char copyright[] =
static char sccsid[] = "@(#)gcore.c 8.2 (Berkeley) 9/23/93";
#endif
static const char rcsid[] =
- "$Id: gcore.c,v 1.6 1997/07/08 11:04:17 charnier Exp $";
+ "$Id: gcore.c,v 1.7 1997/11/18 03:50:25 jdp Exp $";
#endif /* not lint */
/*
@@ -162,6 +162,14 @@ main(argc, argv)
errx(1, "%s exec header: %s",
argv[0], cnt > 0 ? strerror(EIO) : strerror(errno));
+ /* check the text segment size of the executable and the process */
+ if (exec.a_text != ptoa(ki->kp_eproc.e_vm.vm_tsize))
+ errx(1,
+ "The executable %s does not belong to process %d!\n"
+ "Text segment size (in bytes): executable %d, process %d",
+ argv[0], pid, exec.a_text,
+ ptoa(ki->kp_eproc.e_vm.vm_tsize));
+
data_offset = N_DATOFF(exec);
if (sflag && kill(pid, SIGSTOP) < 0)
diff --git a/usr.bin/gcore/gcore.c b/usr.bin/gcore/gcore.c
index 3f8ccb9..46ef21e 100644
--- a/usr.bin/gcore/gcore.c
+++ b/usr.bin/gcore/gcore.c
@@ -42,7 +42,7 @@ static const char copyright[] =
static char sccsid[] = "@(#)gcore.c 8.2 (Berkeley) 9/23/93";
#endif
static const char rcsid[] =
- "$Id: gcore.c,v 1.6 1997/07/08 11:04:17 charnier Exp $";
+ "$Id: gcore.c,v 1.7 1997/11/18 03:50:25 jdp Exp $";
#endif /* not lint */
/*
@@ -162,6 +162,14 @@ main(argc, argv)
errx(1, "%s exec header: %s",
argv[0], cnt > 0 ? strerror(EIO) : strerror(errno));
+ /* check the text segment size of the executable and the process */
+ if (exec.a_text != ptoa(ki->kp_eproc.e_vm.vm_tsize))
+ errx(1,
+ "The executable %s does not belong to process %d!\n"
+ "Text segment size (in bytes): executable %d, process %d",
+ argv[0], pid, exec.a_text,
+ ptoa(ki->kp_eproc.e_vm.vm_tsize));
+
data_offset = N_DATOFF(exec);
if (sflag && kill(pid, SIGSTOP) < 0)
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