Fix ' escaping in adb.
You can't just use \' inside a single-quoted string.
Bug: http://b/20323053
Bug: http://b/3090932
Change-Id: I73754b097671d02dc11c35052f0534b6dd789e4f
(cherry picked from commit 84b0bf22644b35d6b3d3f7dc96311a484c3519b3)
diff --git a/adb/adb_utils.cpp b/adb/adb_utils.cpp
index 0ce5ece..604bd57 100644
--- a/adb/adb_utils.cpp
+++ b/adb/adb_utils.cpp
@@ -45,11 +45,16 @@
std::string escape_arg(const std::string& s) {
std::string result = s;
- // Insert a \ before any ' in the string.
- for (auto it = result.begin(); it != result.end(); ++it) {
- if (*it == '\'') {
- it = result.insert(it, '\\') + 1;
- }
+ // Escape any ' in the string (before we single-quote the whole thing).
+ // The correct way to do this for the shell is to replace ' with '\'' --- that is,
+ // close the existing single-quoted string, escape a single single-quote, and start
+ // a new single-quoted string. Like the C preprocessor, the shell will concatenate
+ // these pieces into one string.
+ for (size_t i = 0; i < s.size(); ++i) {
+ if (s[i] == '\'') {
+ result.insert(i, "'\\'");
+ i += 2;
+ }
}
// Prefix and suffix the whole string with '.