Import sources from 2011-03-30 iso image

1 files changed, 78 insertions, 0 deletions

diff --git a/sys/src/liboventi/plan9-sha1.c b/sys/src/liboventi/plan9-sha1.c
new file mode 100755
index 000000000..c602efed8
--- /dev/null
+++ b/sys/src/liboventi/plan9-sha1.c
@@ -0,0 +1,78 @@
+#include <u.h>
+#include <libc.h>
+#include <oventi.h>
+#include <libsec.h>
+
+static void encode(uchar*, u32int*, ulong);
+extern void vtSha1Block(u32int *s, uchar *p, ulong len);
+
+struct VtSha1
+{
+	DigestState *s;
+};
+
+VtSha1 *
+vtSha1Alloc(void)
+{
+	VtSha1 *s;
+
+	s = vtMemAlloc(sizeof(VtSha1));
+	vtSha1Init(s);
+	return s;
+}
+
+void
+vtSha1Free(VtSha1 *s)
+{
+	if(s == nil)
+		return;
+	if(s->s != nil)
+		free(s->s);
+	vtMemFree(s);
+}
+
+void
+vtSha1Init(VtSha1 *s)
+{
+	s->s = nil;
+}
+
+void
+vtSha1Update(VtSha1 *s, uchar *p, int len)
+{
+	s->s = sha1(p, len, nil, s->s);
+}
+
+void
+vtSha1Final(VtSha1 *s, uchar *digest)
+{
+	sha1(nil, 0, digest, s->s);
+	s->s = nil;
+}
+
+void
+vtSha1(uchar sha1[VtScoreSize], uchar *p, int n)
+{
+	VtSha1 s;
+
+	vtSha1Init(&s);
+	vtSha1Update(&s, p, n);
+	vtSha1Final(&s, sha1);
+}
+
+int
+vtSha1Check(uchar score[VtScoreSize], uchar *p, int n)
+{
+	VtSha1 s;
+	uchar score2[VtScoreSize];
+
+	vtSha1Init(&s);
+	vtSha1Update(&s, p, n);
+	vtSha1Final(&s, score2);
+
+	if(memcmp(score, score2, VtScoreSize) != 0) {
+		vtSetError("vtSha1Check failed");
+		return 0;
+	}
+	return 1;
+}