Only read 32 bytes from /dev/urandom for a seed.

GlitchedPolygons · GlitchedPolygons · commit d6bf0c57b25b · 2020-10-09T15:19:22.000+02:00
Check out the orlp/ed25519 repo's PR orlp#15 for more details: orlp#15
diff --git a/src/seed.c b/src/seed.c
@@ -30,6 +30,7 @@ int ed25519_create_seed(unsigned char *seed) {
         return 1;
     }
 
+    setbuf(f, NULL);
     fread(seed, 1, 32, f);
     fclose(f);
 #endif

Original file line number	Diff line number	Diff line change
`@@ -30,6 +30,7 @@ int ed25519_create_seed(unsigned char *seed) {`
`30`	`30`	`return 1;`
`31`	`31`	`}`
`32`	`32`
	`33`	`+ setbuf(f, NULL);`
`33`	`34`	`fread(seed, 1, 32, f);`
`34`	`35`	`fclose(f);`
`35`	`36`	`#endif`