mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-05 18:49:43 +02:00
1286e7d309
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22953 3c298f89-4303-0410-b956-a3cf2f4a3e73
120 lines
3.1 KiB
Diff
120 lines
3.1 KiB
Diff
--- a/shell/hush.c
|
|
+++ b/shell/hush.c
|
|
@@ -1853,7 +1853,7 @@ static void o_addblock_duplicate_backsla
|
|
while (len) {
|
|
o_addchr(o, *str);
|
|
if (*str++ == '\\'
|
|
- && (*str != '*' && *str != '?' && *str != '[')
|
|
+// && (*str != '*' && *str != '?' && *str != '[')
|
|
) {
|
|
o_addchr(o, '\\');
|
|
}
|
|
@@ -2834,18 +2834,22 @@ static NOINLINE int expand_vars_to_list(
|
|
return n;
|
|
}
|
|
|
|
-static char **expand_variables(char **argv, int or_mask)
|
|
+enum {
|
|
+ EXPVAR_FLAG_GLOB = 0x200,
|
|
+ EXPVAR_FLAG_ESCAPE_VARS = 0x100,
|
|
+ EXPVAR_FLAG_SINGLEWORD = 0x80, /* must be 0x80 */
|
|
+};
|
|
+static char **expand_variables(char **argv, unsigned or_mask)
|
|
{
|
|
int n;
|
|
char **list;
|
|
char **v;
|
|
o_string output = NULL_O_STRING;
|
|
|
|
- if (or_mask & 0x100) {
|
|
- output.o_escape = 1; /* protect against globbing for "$var" */
|
|
- /* (unquoted $var will temporarily switch it off) */
|
|
- output.o_glob = 1;
|
|
- }
|
|
+ /* protect against globbing for "$var"? */
|
|
+ /* (unquoted $var will temporarily switch it off) */
|
|
+ output.o_escape = 1 & (or_mask / EXPVAR_FLAG_ESCAPE_VARS);
|
|
+ output.o_glob = 1 & (or_mask / EXPVAR_FLAG_GLOB);
|
|
|
|
n = 0;
|
|
v = argv;
|
|
@@ -2863,13 +2867,13 @@ static char **expand_variables(char **ar
|
|
|
|
static char **expand_strvec_to_strvec(char **argv)
|
|
{
|
|
- return expand_variables(argv, 0x100);
|
|
+ return expand_variables(argv, EXPVAR_FLAG_GLOB | EXPVAR_FLAG_ESCAPE_VARS);
|
|
}
|
|
|
|
#if ENABLE_HUSH_BASH_COMPAT
|
|
static char **expand_strvec_to_strvec_singleword_noglob(char **argv)
|
|
{
|
|
- return expand_variables(argv, 0x80);
|
|
+ return expand_variables(argv, EXPVAR_FLAG_SINGLEWORD);
|
|
}
|
|
#endif
|
|
|
|
@@ -2909,15 +2913,15 @@ static char **expand_strvec_to_strvec_si
|
|
#endif
|
|
|
|
/* Used for expansion of right hand of assignments */
|
|
-/* NB: should NOT do globbing! "export v=/bin/c*; env | grep ^v=" outputs
|
|
- * "v=/bin/c*" */
|
|
+/* NB: should NOT do globbing!
|
|
+ * "export v=/bin/c*; env | grep ^v=" outputs "v=/bin/c*" */
|
|
static char *expand_string_to_string(const char *str)
|
|
{
|
|
char *argv[2], **list;
|
|
|
|
argv[0] = (char*)str;
|
|
argv[1] = NULL;
|
|
- list = expand_variables(argv, 0x80); /* 0x80: singleword expansion */
|
|
+ list = expand_variables(argv, EXPVAR_FLAG_ESCAPE_VARS | EXPVAR_FLAG_SINGLEWORD);
|
|
if (HUSH_DEBUG)
|
|
if (!list[0] || list[1])
|
|
bb_error_msg_and_die("BUG in varexp2");
|
|
@@ -2933,7 +2937,7 @@ static char* expand_strvec_to_string(cha
|
|
{
|
|
char **list;
|
|
|
|
- list = expand_variables(argv, 0x80);
|
|
+ list = expand_variables(argv, EXPVAR_FLAG_SINGLEWORD);
|
|
/* Convert all NULs to spaces */
|
|
if (list[0]) {
|
|
int n = 1;
|
|
--- /dev/null
|
|
+++ b/shell/hush_test/hush-vars/var_unbackslash.right
|
|
@@ -0,0 +1,9 @@
|
|
+b1=-qwerty-t-\-"---z-*-?-
|
|
+b1=-qwerty-t-\-"---z-*-?-
|
|
+b2=-$a-\t-\\-\"-\--\z-\*-\?-
|
|
+b2=-$a-\t-\\-\"-\--\z-\*-\?-
|
|
+c=-$a-\t-\\-\"-\--\z-\*-\?-
|
|
+c=-$a-\t-\\-\"-\--\z-\*-\?-
|
|
+c=-$a-\t-\\-\"-\--\z-\*-\?-
|
|
+c=-$a-\t-\\-\"-\--\z-\*-\?-
|
|
+Done: 0
|
|
--- /dev/null
|
|
+++ b/shell/hush_test/hush-vars/var_unbackslash.tests
|
|
@@ -0,0 +1,20 @@
|
|
+# Test for correct handling of backslashes
|
|
+a=qwerty
|
|
+
|
|
+b=-$a-\t-\\-\"-\--\z-\*-\?-
|
|
+echo b1=$b
|
|
+echo "b1=$b"
|
|
+b='-$a-\t-\\-\"-\--\z-\*-\?-'
|
|
+echo b2=$b
|
|
+echo "b2=$b"
|
|
+
|
|
+c=$b
|
|
+echo "c=$c"
|
|
+c=${b}
|
|
+echo "c=$c"
|
|
+c="$b"
|
|
+echo "c=$c"
|
|
+c="${b}"
|
|
+echo "c=$c"
|
|
+
|
|
+echo "Done: $?"
|