diff options
Diffstat (limited to 'third_party/gsm/tls/ginger.c')
-rw-r--r-- | third_party/gsm/tls/ginger.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/third_party/gsm/tls/ginger.c b/third_party/gsm/tls/ginger.c new file mode 100644 index 00000000..d830e20f --- /dev/null +++ b/third_party/gsm/tls/ginger.c @@ -0,0 +1,54 @@ +/* + * Copyright 1996 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +/*$Header*/ + +/* Generate code to pack a bit array from a name:#bits description */ + +#include <stdio.h> +#include "taste.h" +#include "proto.h" +#include <limits.h> + +/* This module is the opposite of sour. Sweet was already taken, + * that's why it's called ginger. (Add one point if that reminds + * you of Gary Larson.) + */ + +#define WORD_BITS 16 /* sizeof(uword) * CHAR_BIT on the + * target architecture---if this isn't 16, + * you're in trouble with this library anyway. + */ + +#define BYTE_BITS 8 /* CHAR_BIT on the target architecture--- + * if this isn't 8, you're in *deep* trouble. + */ + +void write_code P2((s_spex, n_spex), struct spex * s_spex, int n_spex) +{ + struct spex * sp = s_spex; + int n_in = 0; + + printf("uword sr = 0;\n"); + + for (; n_spex > 0; n_spex--, sp++) { + + while (n_in < sp->varsize) { + if (n_in) printf("sr |= (uword)*c++ << %d;\n", n_in); + else printf("sr = *c++;\n"); + n_in += BYTE_BITS; + } + + printf("%s = sr & %#x; sr >>= %d;\n", + sp->var, ~(~0U << sp->varsize), sp->varsize); + + n_in -= sp->varsize; + } + + if (n_in > 0) { + fprintf(stderr, "%d bits left over\n", n_in); + } +} |