You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
96 lines
3.1 KiB
96 lines
3.1 KiB
BASH PATCH REPORT
|
|
=================
|
|
|
|
Bash-Release: 4.3
|
|
Patch-ID: bash43-031
|
|
|
|
Bug-Reported-by: lolilolicon <lolilolicon@gmail.com>
|
|
Bug-Reference-ID: <CAMtVo_Nz=32Oq=zWTb6=+8gUNXOo2rRvud1W4oPnA-cgVk_ZqQ@mail.gmail.com>
|
|
Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2014-08/msg00139.html
|
|
|
|
Bug-Description:
|
|
|
|
The new nameref assignment functionality introduced in bash-4.3 did not perform
|
|
enough validation on the variable value and would create variables with
|
|
invalid names.
|
|
|
|
Patch (apply with `patch -p0'):
|
|
|
|
--- a/subst.h
|
|
+++ b/subst.h
|
|
@@ -47,6 +47,7 @@
|
|
#define ASS_MKASSOC 0x0004
|
|
#define ASS_MKGLOBAL 0x0008 /* force global assignment */
|
|
#define ASS_NAMEREF 0x0010 /* assigning to nameref variable */
|
|
+#define ASS_FROMREF 0x0020 /* assigning from value of nameref variable */
|
|
|
|
/* Flags for the string extraction functions. */
|
|
#define SX_NOALLOC 0x0001 /* just skip; don't return substring */
|
|
--- a/variables.c
|
|
+++ b/variables.c
|
|
@@ -2516,10 +2516,27 @@ bind_variable_internal (name, value, tab
|
|
HASH_TABLE *table;
|
|
int hflags, aflags;
|
|
{
|
|
- char *newval;
|
|
+ char *newname, *newval;
|
|
SHELL_VAR *entry;
|
|
+#if defined (ARRAY_VARS)
|
|
+ arrayind_t ind;
|
|
+ char *subp;
|
|
+ int sublen;
|
|
+#endif
|
|
|
|
+ newname = 0;
|
|
+#if defined (ARRAY_VARS)
|
|
+ if ((aflags & ASS_FROMREF) && (hflags & HASH_NOSRCH) == 0 && valid_array_reference (name))
|
|
+ {
|
|
+ newname = array_variable_name (name, &subp, &sublen);
|
|
+ if (newname == 0)
|
|
+ return (SHELL_VAR *)NULL; /* XXX */
|
|
+ entry = hash_lookup (newname, table);
|
|
+ }
|
|
+ else
|
|
+#endif
|
|
entry = (hflags & HASH_NOSRCH) ? (SHELL_VAR *)NULL : hash_lookup (name, table);
|
|
+
|
|
/* Follow the nameref chain here if this is the global variables table */
|
|
if (entry && nameref_p (entry) && (invisible_p (entry) == 0) && table == global_variables->table)
|
|
{
|
|
@@ -2550,6 +2567,16 @@ bind_variable_internal (name, value, tab
|
|
var_setvalue (entry, make_variable_value (entry, value, 0));
|
|
}
|
|
}
|
|
+#if defined (ARRAY_VARS)
|
|
+ else if (entry == 0 && newname)
|
|
+ {
|
|
+ entry = make_new_array_variable (newname); /* indexed array by default */
|
|
+ if (entry == 0)
|
|
+ return entry;
|
|
+ ind = array_expand_index (name, subp, sublen);
|
|
+ bind_array_element (entry, ind, value, aflags);
|
|
+ }
|
|
+#endif
|
|
else if (entry == 0)
|
|
{
|
|
entry = make_new_variable (name, table);
|
|
@@ -2670,7 +2697,8 @@ bind_variable (name, value, flags)
|
|
normal. */
|
|
if (nameref_cell (nv) == 0)
|
|
return (bind_variable_internal (nv->name, value, nvc->table, 0, flags));
|
|
- return (bind_variable_internal (nameref_cell (nv), value, nvc->table, 0, flags));
|
|
+ /* XXX - bug here with ref=array[index] */
|
|
+ return (bind_variable_internal (nameref_cell (nv), value, nvc->table, 0, flags|ASS_FROMREF));
|
|
}
|
|
else
|
|
v = nv;
|
|
--- a/patchlevel.h
|
|
+++ b/patchlevel.h
|
|
@@ -25,6 +25,6 @@
|
|
regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
|
|
looks for to find the patch level (for the sccs version string). */
|
|
|
|
-#define PATCHLEVEL 30
|
|
+#define PATCHLEVEL 31
|
|
|
|
#endif /* _PATCHLEVEL_H_ */
|