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authorMark Haines <mjark@negativecurvature.net>2016-05-23 17:32:24 +0100
committerMark Haines <mjark@negativecurvature.net>2016-05-23 17:32:24 +0100
commitf47aabd094a4eafeed5a510c650d7a063a148076 (patch)
tree53fbdcc5d028246bb0a41760810aa722ac2a86d7 /fuzzers/include/fuzzing.hh
parentaacf1154684885d244182eb9cd68e429d72ee57a (diff)
Add support for building fuzzers using american fuzzy lop
Builds fuzzers using http://lcamtuf.coredump.cx/afl/
Diffstat (limited to 'fuzzers/include/fuzzing.hh')
-rw-r--r--fuzzers/include/fuzzing.hh72
1 files changed, 72 insertions, 0 deletions
diff --git a/fuzzers/include/fuzzing.hh b/fuzzers/include/fuzzing.hh
new file mode 100644
index 0000000..e4f5eb9
--- /dev/null
+++ b/fuzzers/include/fuzzing.hh
@@ -0,0 +1,72 @@
+#include "olm/olm.hh"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stddef.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+
+ssize_t read_file(
+ int fd,
+ uint8_t **buffer
+) {
+ size_t buffer_size = 4096;
+ uint8_t * current_buffer = (uint8_t *) malloc(buffer_size);
+ if (current_buffer == NULL) return -1;
+ size_t buffer_pos = 0;
+ while (1) {
+ ssize_t count = read(
+ fd, current_buffer + buffer_pos, buffer_size - buffer_pos
+ );
+ if (count < 0) break;
+ if (count == 0) {
+ uint8_t * return_buffer = (uint8_t *) realloc(current_buffer, buffer_pos);
+ if (return_buffer == NULL) break;
+ *buffer = return_buffer;
+ return buffer_pos;
+ }
+ buffer_pos += count;
+ if (buffer_pos == buffer_size) {
+ buffer_size *= 2;
+ uint8_t * new_buffer = (uint8_t *) realloc(current_buffer, buffer_size);
+ if (new_buffer == NULL) break;
+ current_buffer = new_buffer;
+ }
+ }
+ free(current_buffer);
+ return -1;
+}
+
+template<typename T>
+T check_errno(
+ const char * message,
+ T value
+) {
+ if (value == T(-1)) {
+ perror(message);
+ exit(1);
+ }
+ return value;
+}
+
+size_t check_session(
+ OlmSession * session,
+ const char * message,
+ size_t value
+) {
+ if (value == olm_error()) {
+ const char * olm_message = olm_session_last_error(session);
+ ssize_t ignored;
+ ignored = write(STDERR_FILENO, message, strlen(message));
+ ignored = write(STDERR_FILENO, ": ", 2);
+ ignored = write(STDERR_FILENO, olm_message, strlen(olm_message));
+ ignored = write(STDERR_FILENO, "\n", 1);
+ exit(2);
+ return ignored;
+ }
+ return value;
+}