JehanneOS
/
mksh
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Detect (potentially mismatched) ELF files; suggested by enh@google.com

This commit is contained in:
tg 2014-06-24 18:38:31 +00:00
parent 73edeaa8ec
commit c7774ae861
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
exec.c
View File

@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.131 2014/06/10 22:17:08 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.132 2014/06/24 18:38:31 tg Exp $");
#ifndef MKSH_DEFAULT_EXECSHELL
#define MKSH_DEFAULT_EXECSHELL "/bin/sh"
@ -919,6 +919,10 @@ scriptexec(struct op *tp, const char **ap)
*tp->args-- = (char *)cp;
}
noshebang:
if (buf[0] == 0x7F && buf[1] == 'E' && buf[2] == 'L' &&
buf[3] == 'F')
errorf("%s: not executable: %d-bit ELF file", tp->str,
32 * ((uint8_t)buf[4]));
fd = buf[0] << 8 | buf[1];
if ((fd == /* OMAGIC */ 0407) ||
(fd == /* NMAGIC */ 0410) ||
@ -927,7 +931,6 @@ scriptexec(struct op *tp, const char **ap)
(fd == /* ECOFF_I386 */ 0x4C01) ||
(fd == /* ECOFF_M68K */ 0x0150 || fd == 0x5001) ||
(fd == /* ECOFF_SH */ 0x0500 || fd == 0x0005) ||
(fd == 0x7F45 && buf[2] == 'L' && buf[3] == 'F') ||
(fd == /* "MZ" */ 0x4D5A) ||
(fd == /* gzip */ 0x1F8B))
errorf("%s: not executable: magic %04X", tp->str, fd);