13ca4d98c7
it's correct to return EACCES if FS is mounted MNT_NOEXEC.
1993-10-26 01:42:56 +00:00
c7582cbd4f
use copyinstr rather than strcpy to copy in the saved shell-script
...
name from userland. From Markus Wild, mw@lamp
1993-10-26 00:32:29 +00:00
a84055b552
use the ALIGN macro to align the stack, rather than rounding up
...
by a (char *). the former is safe, even on strange machines
(read: sparc).
1993-10-06 07:27:58 +00:00
83aeee1bc0
there now exists an "exec switch". break the a.out code into another
...
module, and tidy up the interface so that other object formats are
more easily supportable.
1993-09-05 01:33:35 +00:00
491d6b4b9d
fix problem where exec would lose on shell scripts with symlinks in
...
their names. fix from "James W. Dolter" <jdolter@sawtooth.eecs.umich.edu>.
test script:
#!/bin/csh
mkdir /tmp/foodir
cat > /tmp/foodir/testscript <<EOF
#!/bin/sh
echo "Executing script \$1"
EOF
chmod 755 /tmp/foodir/testscript
(cd /tmp ; ln -s foodir foosym)
echo "Trying full path (w/o symlink) to /tmp/foodir/testscript"
/tmp/foodir/testscript "with out symlink"
echo "Trying full path (w/ symlink) to /tmp/foosym/testscript"
/tmp/foosym/testscript "with symlink"
echo "End of Test"
1993-09-01 21:43:50 +00:00
d365662684
ok, initialize that errno, to make theo and gcc2 happy...
1993-08-31 01:52:34 +00:00
518f7c78d6
a program being exec'd *must* cause *some* exec commands to be invoked;
...
if it doesn't there's a problem in the kernel, because a program
with no exec commands run will have no address space except the stack,
and i don't think it's valid to have a "run from stack only" exec type,
so panic. if need for that case comes up later, it can be changed...
1993-08-31 01:46:36 +00:00
2680a043c7
general cleanup (get close to KNF), and remove a few fuzzies
...
in preparation for The Grand Re-rewriting.
1993-07-28 04:08:27 +00:00
c0334ef92c
break args structs out, into syscallname_args structs, so gcc2 doesn't
...
whine so much.
1993-07-13 22:13:15 +00:00
b5236e7d0f
Roundup stack len to naturally aligned address. This fixes emacs aborting due to an odd address in alloca'ed memory.
1993-07-10 02:07:48 +00:00
31d24dc82e
Ignore the flags field in midmag.
1993-07-08 16:48:18 +00:00
b274bb4126
add support for checking entry against max user address
1993-07-05 01:53:56 +00:00
955ae6a915
change exit() to kexit(), so prototypes are "safe" with stdio.h, etc.
1993-07-04 23:30:33 +00:00
b21025e4f3
call setregs with a retval, too, so the hp300 & mac, and more works.
1993-07-04 09:48:29 +00:00
0e6cb953ea
ANSIfications - removed all implicit function return types and argument
...
definitions. Ensured that all files include "systm.h" to gain access to
general prototypes. Casts where necessary.
1993-06-27 06:01:27 +00:00
ee8d969be4
ansi-style function definitions
1993-06-22 01:31:53 +00:00
c8bdad0560
convert magic numbers to network byte order, and attendent changes
1993-06-18 06:49:30 +00:00
24fe3e4563
fixed bug where extra spaces at the end of a shell name would
...
cause shell scripts to be executed incorrectly. shells would
receive an *empty* arg for name of script, open it, the kernel
would say "oh, that's ." or something similar, and the results
would be interesting... found, diagnosed, and killed by me.
1993-06-07 03:09:29 +00:00
7489eff03c
fix stoopid location to label problem
1993-06-06 02:36:22 +00:00
165b917efe
add fixes supplied by markus wild
1993-06-05 19:38:13 +00:00
23f01c5982
call a cpu-dependent function to check executable's a_mid type.
1993-06-03 01:31:43 +00:00
654e213804
when copying out signal trampoline code, make sure that
...
the copyout actually succeeds.
1993-06-02 04:43:54 +00:00
d2bf51450c
fixed minor typo in sigcode copying code
1993-06-02 03:15:36 +00:00
af4017c23f
general cleanup including, but not limited to:
...
better-integreate vmcmd building and exec hdr interpretation,
get stack sigcode copying right
etc.
1993-06-02 02:49:40 +00:00
956c046db5
do address mapping in a new way...
...
it works, but the code needs to be cleaned some...
1993-06-02 00:20:07 +00:00
4206d7f100
break before letting child run, if tracing, and do the right
...
thing with stack limits
1993-06-01 04:52:40 +00:00
0656a4bbbe
final patchups, also add support for finding argv/env via PS_STRINGS
1993-06-01 01:31:39 +00:00
eb4c4de385
replace exec.
...
new one based on one by Wolfgang Solfrank, but majorly hacked
(as it: it didn't have a chance in hell of working, before; didn't
even bother copying out argc, for one...)
1993-05-31 01:44:55 +00:00
cgd