1 files changed, 29 insertions, 0 deletions
diff --git a/tools/perf/util/quote.h b/tools/perf/util/quote.h
new file mode 100644
index 000000000..172889ea2
--- /dev/null
+++ b/tools/perf/util/quote.h
@@ -0,0 +1,29 @@
+#ifndef __PERF_QUOTE_H
+#define __PERF_QUOTE_H
+
+#include <stddef.h>
+#include <stdio.h>
+
+/* Help to copy the thing properly quoted for the shell safety.
+ * any single quote is replaced with '\'', any exclamation point
+ * is replaced with '\!', and the whole thing is enclosed in a
+ * single quote pair.
+ *
+ * For example, if you are passing the result to system() as an
+ * argument:
+ *
+ * sprintf(cmd, "foobar %s %s", sq_quote(arg0), sq_quote(arg1))
+ *
+ * would be appropriate.  If the system() is going to call ssh to
+ * run the command on the other side:
+ *
+ * sprintf(cmd, "git-diff-tree %s %s", sq_quote(arg0), sq_quote(arg1));
+ * sprintf(rcmd, "ssh %s %s", sq_util/quote.host), sq_quote(cmd));
+ *
+ * Note that the above examples leak memory!  Remember to free result from
+ * sq_quote() in a real application.
+ */
+
+extern void sq_quote_argv(struct strbuf *, const char **argv, size_t maxlen);
+
+#endif /* __PERF_QUOTE_H */