From 5b81a507643556cb8a07e157e21572494a44dee9 Mon Sep 17 00:00:00 2001
From: Jagger <robert@swiecki.net>
Date: Wed, 7 Sep 2016 20:48:32 +0200
Subject: [PATCH] Create shm file in the working dir

---
 files.c     | 5 +++--
 files.h     | 2 +-
 honggfuzz.c | 4 ++--
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/files.c b/files.c
index 44be32627..da051dd4c 100644
--- a/files.c
+++ b/files.c
@@ -489,9 +489,10 @@ uint8_t *files_mapFileShared(char *fileName, off_t * fileSz, int *fd)
     return buf;
 }
 
-void *files_mapSharedMem(size_t sz, int *fd)
+void *files_mapSharedMem(size_t sz, int *fd, const char *dir)
 {
-    char template[] = "/tmp/hfuzz.XXXXXX";
+    char template[PATH_MAX];
+    snprintf(template, sizeof(template), "%s/hfuzz.XXXXXX", dir);
     if ((*fd = mkstemp(template)) == -1) {
         PLOG_W("mkstemp('%s')", template);
         return MAP_FAILED;
diff --git a/files.h b/files.h
index 63166374d..2e895a92e 100644
--- a/files.h
+++ b/files.h
@@ -56,7 +56,7 @@ extern uint8_t *files_mapFile(char *fileName, off_t * fileSz, int *fd, bool isWr
 
 extern uint8_t *files_mapFileShared(char *fileName, off_t * fileSz, int *fd);
 
-extern void *files_mapSharedMem(size_t sz, int *fd);
+extern void *files_mapSharedMem(size_t sz, int *fd, const char *dir);
 
 extern bool files_readPidFromFile(const char *fileName, pid_t * pidPtr);
 
diff --git a/honggfuzz.c b/honggfuzz.c
index 656ace09b..a6fa9e759 100644
--- a/honggfuzz.c
+++ b/honggfuzz.c
@@ -150,9 +150,9 @@ int main(int argc, char **argv)
     }
 
     if (hfuzz.dynFileMethod != _HF_DYNFILE_NONE) {
-        hfuzz.feedback = files_mapSharedMem(sizeof(feedback_t), &hfuzz.bbFd);
+        hfuzz.feedback = files_mapSharedMem(sizeof(feedback_t), &hfuzz.bbFd, hfuzz.workDir);
         if (hfuzz.feedback == MAP_FAILED) {
-            LOG_F("files_mapSharedMem(sz=%zu) failed", sizeof(feedback_t));
+            LOG_F("files_mapSharedMem(sz=%zu, dir='%s') failed", sizeof(feedback_t), hfuzz.workDir);
         }
     }