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| author | Barton E. Schaefer <schaefer@zsh.org> | 2014-12-07 11:06:07 -0800 |
|---|---|---|
| committer | Barton E. Schaefer <schaefer@zsh.org> | 2014-12-07 11:20:01 -0800 |
| commit | 48cd1b6c3b51a7bc6d45d4aeb7ff8c55d97a6f2a (patch) | |
| tree | b6869b9fcd6dbd38566c4cd452502d2ca40220f3 /Src | |
| parent | 9ddd022ff03efd90bac9f1057e61ad74b5cdbc9a (diff) | |
| download | zsh-48cd1b6c3b51a7bc6d45d4aeb7ff8c55d97a6f2a.tar.gz zsh-48cd1b6c3b51a7bc6d45d4aeb7ff8c55d97a6f2a.zip | |
33894: boundary conditions in unmeta(), unmetafy()
Check that we aren't running off the end of the string when converting the
next byte after a Meta byte. This is just defensive programming in case
of bad metafied strings coming through from gettokstr(), some repairs
there are likely still needed.
Diffstat (limited to 'Src')
| -rw-r--r-- | Src/utils.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Src/utils.c b/Src/utils.c index 926814759..5c90638a2 100644 --- a/Src/utils.c +++ b/Src/utils.c @@ -4164,7 +4164,7 @@ unmetafy(char *s, int *len) for (p = s; *p && *p != Meta; p++); for (t = p; (*t = *p++);) - if (*t++ == Meta) + if (*t++ == Meta && *p) t[-1] = *p++ ^ 32; if (len) *len = t - s; @@ -4208,8 +4208,10 @@ unmeta(const char *file_name) meta = 0; for (t = file_name; *t; t++) { - if (*t == Meta) - meta = 1; + if (*t == Meta) { + meta = t[1]; + break; + } } if (!meta) { /* |