From: Tyson Smith <tyson.w.smith@xxxxxxxxx>
This will generate a path that will likely not exist but may
look somewhat valid or totally crazy depending on rand.
---
random-pathname.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 53 insertions(+)
diff --git a/random-pathname.c b/random-pathname.c
index 4d093d1..d8f5094 100644
--- a/random-pathname.c
+++ b/random-pathname.c
@@ -9,6 +9,52 @@
#define MAX_PATH_LEN 4096
+/*
+ * Generate a path that will likely not exist but may look
+ * somewhat valid or totally crazy depending on rand.
+ */
+static void random_pathstring(char *path, unsigned int len) {
+ const char *fmts = "dns";
+ unsigned int i;
+
+ if (len < 1)
+ return;
+
+ switch(rand() % 5) {
+ case 0:
+ // single repeating random ASCII character
+ (void) memset(path, (rand() % 95) + 32, rand() % len);
+ path[len-1] = '\0';
+ break;
+ case 1:
+ // random ASCII characters 32(space) -> 126(~)
+ for (i=0; i < len; i++)
+ path[i] = (char) ((rand() % 95) + 32);
+ path[len-1] = '\0';
+ break;
+ case 2:
+ // random . or /
+ for (i=0; i < len; i++)
+ path[i] = RAND_BOOL() ? '.' : '/';
+ path[len-1] = '\0';
+ break;
+ case 3:
+ // format strings
+ for (i=0; i < (len - 2); i+=2) {
+ path[i] = '%';
+ path[i+1] = fmts[rand() % 3];
+ }
+ path[len-1] = '\0';
+ break;
+ case 4:
+ // junk
+ for (i=0; i < len; i++)
+ path[i] = (char) RAND_BYTE();
+ path[len-1] = '\0';
+ break;
+ }
+}
+
const char * generate_pathname(void)
{
const char *pathname = get_filename();
@@ -25,6 +71,13 @@ const char * generate_pathname(void)
/* Create a bogus filename. */
newpath = zmalloc(MAX_PATH_LEN); // FIXME: We leak this.
+ /* 50/50 chance using a random path string */
+ if (RAND_BOOL()) {
+ len = RAND_BOOL() ? RAND_BYTE() : rand() % MAX_PATH_LEN;
+ random_pathstring(newpath, len);
+ return newpath;
+ }
+
len = strlen(pathname);
if (RAND_BOOL())
--
1.9.1
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