Updates to 2001/anonymous

As it's uncertain (both to Landon and me) whether it's supposed to
execute programs it is run on or only modify it which it does (if 32-bit
ELF - which is the only kind it's supposed to act on) with my fix (see
README.md for commit ids) I have added a new bug status:

    STATUS: might not be completely functional - can you confirm?

and added this new status to this entry. When or if we figure out the
functional status we will remove (if completely functional or we figure
out what's wrong and fix it which of course is the ideal case) or change
(if it is not completely functional) the status. If anyone knows the
functionality status *please* let us know!

I also updated the try.me.sh script to be quiet on make clobber so that
if -m32 does not work nothing but the error message will be shown and if
it does work only the commands and output of the commands will be shown.
In other words make commands are not shown.
This commit is contained in:
Cody Boone Ferguson committed 2023-05-17 04:43:06 -07:00
1 parent d3cdf798e4
commit 49d1e9223d
3 files changed
+40 -12

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+10 -3
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@@ -19,9 +19,9 @@ make
supplementary program and the program itself, both of which segfaulted. He
managed to do this with linux but it will not work with macOS (see
[bugs.md](/bugs.md) for why this is); this is not a bug but a feature inherent
in what it does. He said this took serious debugging and skill (shameless self
promotion but it's true :-) ) and we thank him _very much_! But what needed to
be changed? Although it took a fair bit of debugging it turns out all that
in what it does.
Although it took a fair bit of debugging it turns out all that
needed to be changed was:
- `#include <sys/mman.h>` for `mmap()`.
@@ -47,6 +47,13 @@ git diff c48629017117379a52b1a512ef8f2593ca9569c8..efdee208a2bc650256637b9357ddf
git diff efdee208a2bc650256637b9357ddfd0de82d2f41..e9a3f77ea3b209e63ac3f9c06bb84ad86e5ea706 anonymous.c
```
There's an another important point in [bugs.md](/bugs.md) about this entry,
however, in that we're not sure if the entry was supposed to run the program or
not as there is some inconsistency in the author's comments which we think might
have been intentional.
Thank you Cody for your assistance!
### WARNING on note from the author
The author suggested that this will somewhat destroy the binaries this touches
+1 -2
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@@ -1,6 +1,6 @@
#!/usr/bin/env bash
make clobber
make clobber >/dev/null 2>&1
if [[ $(make anonymous.ten >/dev/null 2>&1) ]]; then
@@ -26,7 +26,6 @@ if [[ $(make anonymous.ten >/dev/null 2>&1) ]]; then
echo "$ diff -s ten.txt ten.bak.txt" 1>&2
diff -s ten.txt ten.bak.txt
else
echo
echo "cannot compile anonymous.ten.c as 32-bit, sorry."
exit 1
fi