diff --git a/adb/adb.cpp b/adb/adb.cpp
index d37ca36..ad85184f 100644
--- a/adb/adb.cpp
+++ b/adb/adb.cpp
@@ -79,18 +79,19 @@
 
 #if !ADB_HOST
 void start_device_log(void) {
-    adb_mkdir("/data/adb", 0775);
-
     struct tm now;
     time_t t;
     tzset();
     time(&t);
     localtime_r(&t, &now);
 
-    char path[PATH_MAX];
-    strftime(path, sizeof(path), "/data/adb/adb-%Y-%m-%d-%H-%M-%S.txt", &now);
+    char timestamp[PATH_MAX];
+    strftime(timestamp, sizeof(timestamp), "%Y-%m-%d-%H-%M-%S", &now);
 
-    int fd = unix_open(path, O_WRONLY | O_CREAT | O_TRUNC, 0640);
+    char path[PATH_MAX];
+    snprintf(path, sizeof(path), "/data/adb/adb-%s-%d", timestamp, getpid());
+
+    int fd = unix_open(path, O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC, 0640);
     if (fd == -1) {
         return;
     }
@@ -100,10 +101,6 @@
     dup2(fd, STDERR_FILENO);
     fprintf(stderr, "--- adb starting (pid %d) ---\n", getpid());
     adb_close(fd);
-
-    fd = unix_open("/dev/null", O_RDONLY);
-    dup2(fd, 0);
-    adb_close(fd);
 }
 #endif
 
diff --git a/adb/adb_main.cpp b/adb/adb_main.cpp
index c1e4b13..a03fcf1 100644
--- a/adb/adb_main.cpp
+++ b/adb/adb_main.cpp
@@ -349,9 +349,23 @@
     return 0;
 }
 
+#if !ADB_HOST
+void close_stdin() {
+    int fd = unix_open("/dev/null", O_RDONLY);
+    if (fd == -1) {
+        perror("failed to open /dev/null, stdin will remain open");
+        return;
+    }
+    dup2(fd, 0);
+    adb_close(fd);
+}
+#endif
+
 int main(int argc, char **argv) {
 #if ADB_HOST
     adb_sysdeps_init();
+#else
+    close_stdin();
 #endif
     adb_trace_init();