blog/cat: correct missing sf-origin link

2022-08-02 21:19:54 -05:00 · 2022-08-02 21:19:54 -05:00 · dcdf2c13b1
parent f28cf0f0e9
commit dcdf2c13b1
1 changed files with 2 additions and 0 deletions
--- a/content/blog/cat.md
+++ b/content/blog/cat.md
@ -106,6 +106,8 @@ Linux 2.6.33.  Unfortunately, sendfile is not perfect: because it
 only supports file descriptors which can be memory mapped, we 
 must use a different strategy when using copying from `stdin`.

+   [sf-origin]: https://yarchive.net/comp/linux/sendfile.html
+
 ```c
 /* This program is released into the public domain. */
 #include <stdbool.h>