102 lines
1.9 KiB
C
102 lines
1.9 KiB
C
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#include "ruby.h"
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#include "sha1.h"
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static VALUE cSHA1;
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static VALUE
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sha1_update(obj, str)
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VALUE obj;
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struct RString *str;
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{
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SHA1_CTX *sha1;
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Check_Type(str, T_STRING);
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Data_Get_Struct(obj, SHA1_CTX, sha1);
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SHA1Update(sha1, str->ptr, str->len);
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return obj;
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}
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static VALUE
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sha1_digest(obj)
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VALUE obj;
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{
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SHA1_CTX *sha1, ctx;
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unsigned char digest[20];
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Data_Get_Struct(obj, SHA1_CTX, sha1);
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ctx = *sha1;
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SHA1Final(digest, &ctx);
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return rb_str_new(digest, 20);
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}
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static VALUE
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sha1_hexdigest(obj)
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VALUE obj;
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{
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SHA1_CTX *sha1, ctx;
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unsigned char digest[20];
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char buf[33];
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int i;
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Data_Get_Struct(obj, SHA1_CTX, sha1);
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ctx = *sha1;
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SHA1Final(digest, &ctx);
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for (i=0; i<20; i++) {
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sprintf(buf+i*2, "%02x", digest[i]);
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}
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return rb_str_new(buf, 40);
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}
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static VALUE
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sha1_clone(obj)
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VALUE obj;
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{
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SHA1_CTX *sha1, *sha1_new;
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Data_Get_Struct(obj, SHA1_CTX, sha1);
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obj = Data_Make_Struct(CLASS_OF(obj), SHA1_CTX, 0, free, sha1_new);
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*sha1_new = *sha1;
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return obj;
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}
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static VALUE
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sha1_new(argc, argv, class)
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int argc;
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VALUE* argv;
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VALUE class;
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{
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VALUE arg, obj;
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SHA1_CTX *sha1;
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rb_scan_args(argc, argv, "01", &arg);
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if (!NIL_P(arg)) Check_Type(arg, T_STRING);
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obj = Data_Make_Struct(class, SHA1_CTX, 0, free, sha1);
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rb_obj_call_init(obj, argc, argv);
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SHA1Init(sha1);
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if (!NIL_P(arg)) {
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sha1_update(obj, arg);
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}
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return obj;
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}
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void
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Init_sha1()
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{
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cSHA1 = rb_define_class("SHA1", rb_cObject);
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rb_define_singleton_method(cSHA1, "new", sha1_new, -1);
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rb_define_singleton_method(cSHA1, "sha1", sha1_new, -1);
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rb_define_method(cSHA1, "update", sha1_update, 1);
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rb_define_method(cSHA1, "<<", sha1_update, 1);
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rb_define_method(cSHA1, "digest", sha1_digest, 0);
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rb_define_method(cSHA1, "hexdigest", sha1_hexdigest, 0);
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rb_define_method(cSHA1, "clone", sha1_clone, 0);
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}
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