Configuration Information [Automatically generated, do not change]:
Machine: i486
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i486'
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i486-pc-linux-gnu'
-DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL
-DHAVE_CONFIG_H -I. -I../bash -I../bash/include -I../bash/lib -g -O2
uname output: Linux dirac.s-z.org 2.6.18-2-k7 #1 SMP Wed Nov 8 20:38:36 UTC
2006 i686 GNU/Linux
Machine Type: i486-pc-linux-gnu
Bash Version: 3.1
Patch Level: 17
Release Status: release
Description:
When tab-completing a command, spaces and other special characters
are escaped with backslashes. However, when the command begins with
tilde and already contains backslash-quoted characters, these
backslashes are treated as a literal part of the command, and are
double-escaped. That is, the text to be completed is not properly
dequoted. Filename completion is NOT affected.
This bug was discovered by Nathan Rich in #bash on freenode. I have
confirmed the bug in bash 3.1.17 and 3.2.25.
Repeat-By:
mkdir ~/Foo\ bar
cp /bin/true ~/Foo\ bar/
~/Fo<TAB> => expands to '~/Foo\ bar/' as expected
~/Fo<TAB><TAB> => expands to '~/Foo\\\ bar/true' (WRONG)
Fix:
The following patch fixes the problem by basing the expansion
on the dequoted text rather than the original hint_text. The
patch was created from bash-3.2 sources, but also applies, with
offsets, to bash-3.1.
diff -ur bash-3.2.25/bashline.c bash-3.2/bashline.c
--- bash-3.2.25/bashline.c 2006-07-29 16:39:30.000000000 -0400
+++ bash-3.2/bashline.c 2007-10-12 19:17:18.603626967 -0400
@@ -1476,10 +1476,16 @@
filename. */
if (*hint_text == '~')
{
+ static char *deq_text;
+
int l, tl, vl, dl;
char *rd;
+
+ FREE(deq_text);
+ deq_text = bash_dequote_filename(hint_text, 0);
+
vl = strlen (val);
- tl = strlen (hint_text);
+ tl = strlen (deq_text);
#if 0
l = vl - hint_len; /* # of chars added */
#else
@@ -1490,7 +1496,7 @@
free (rd);
#endif
temp = (char *)xmalloc (l + 2 + tl);
- strcpy (temp, hint_text);
+ strcpy (temp, deq_text);
strcpy (temp + tl, val + vl - l);
}
else
