init_ctx 50 maint/gnulib/lib/sha256-stream.c ssize_t hashlen, void (*init_ctx) (struct sha256_ctx *), init_ctx 64 maint/gnulib/lib/sha256-stream.c init_ctx (&ctx); init_ctx 50 maint/gnulib/lib/sha512-stream.c ssize_t hashlen, void (*init_ctx) (struct sha512_ctx *), init_ctx 64 maint/gnulib/lib/sha512-stream.c init_ctx (&ctx);