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-rw-r--r--src/or/protover.c15
-rw-r--r--src/test/test_protover.c4
2 files changed, 19 insertions, 0 deletions
diff --git a/src/or/protover.c b/src/or/protover.c
index e8524a25b5..ebaca07ba3 100644
--- a/src/or/protover.c
+++ b/src/or/protover.c
@@ -23,6 +23,7 @@
#define PROTOVER_PRIVATE
+#include "compat.h"
#include "or.h"
#include "protover.h"
#include "routerparse.h"
@@ -170,6 +171,16 @@ parse_version_range(const char *s, const char *end_of_range,
return -1;
}
+static int
+is_valid_keyword(const char *s, size_t n)
+{
+ for (size_t i = 0; i < n; i++) {
+ if (!TOR_ISALNUM(s[i]) && s[i] != '-')
+ return 0;
+ }
+ return 1;
+}
+
/** Parse a single protocol entry from <b>s</b> up to an optional
* <b>end_of_entry</b> pointer, and return that protocol entry. Return NULL
* on error.
@@ -195,6 +206,10 @@ parse_single_entry(const char *s, const char *end_of_entry)
if (equals == s)
goto error;
+ /* The name must contain only alphanumeric characters and hyphens. */
+ if (!is_valid_keyword(s, equals-s))
+ goto error;
+
out->name = tor_strndup(s, equals-s);
tor_assert(equals < end_of_entry);
diff --git a/src/test/test_protover.c b/src/test/test_protover.c
index 9b94044b91..768332bb69 100644
--- a/src/test/test_protover.c
+++ b/src/test/test_protover.c
@@ -283,6 +283,10 @@ test_protover_vote_roundtrip(void *args)
const char *input;
const char *expected_output;
} examples[] = {
+ { "Risqu\u00e9=1", NULL },
+ { ",,,=1", NULL },
+ { "\xc1=1", NULL },
+ { "Foo_Bar=1", NULL },
{ "Fkrkljdsf", NULL },
{ "Zn=4294967295", NULL },
{ "Zn=4294967295-1", NULL },