X-Git-Url: https://bearssl.org/gitweb//home/git/?p=BearSSL;a=blobdiff_plain;f=tools%2Fnames.c;h=06b2cdb344f70feb96895b0c9483dc49aa8d1180;hp=b34354e188208e232326963de8ef9f366793e4cb;hb=e61ad42191511226309bad2cbde8cd9e8cc743cb;hpb=f56b0baab3625e3cb31a8b48c7c0a7995de42ac6;ds=sidebyside

diff --git a/tools/names.c b/tools/names.c
index b34354e..06b2cdb 100644
--- a/tools/names.c
+++ b/tools/names.c
@@ -396,6 +396,60 @@ eqstr(const char *s1, const char *s2)
 	return eqstr_chunk(s1, strlen(s1), s2, strlen(s2));
 }
 
+static int
+hexval(int c)
+{
+	if (c >= '0' && c <= '9') {
+		return c - '0';
+	} else if (c >= 'A' && c <= 'F') {
+		return c - 'A' + 10;
+	} else if (c >= 'a' && c <= 'f') {
+		return c - 'a' + 10;
+	} else {
+		return -1;
+	}
+}
+
+/* see brssl.h */
+size_t
+parse_size(const char *s)
+{
+	int radix;
+	size_t acc;
+	const char *t;
+
+	t = s;
+	if (t[0] == '0' && (t[1] == 'x' || t[1] == 'X')) {
+		radix = 16;
+		t += 2;
+	} else {
+		radix = 10;
+	}
+	acc = 0;
+	for (;;) {
+		int c, d;
+		size_t z;
+
+		c = *t ++;
+		if (c == 0) {
+			return acc;
+		}
+		d = hexval(c);
+		if (d < 0 || d >= radix) {
+			fprintf(stderr, "ERROR: not a valid digit: '%c'\n", c);
+			return (size_t)-1;
+		}
+		z = acc * (size_t)radix + (size_t)d;
+		if (z < (size_t)d || (z / (size_t)radix) != acc
+			|| z == (size_t)-1)
+		{
+			fprintf(stderr, "ERROR: value too large: %s\n", s);
+			return (size_t)-1;
+		}
+		acc = z;
+	}
+}
+
 /*
  * Comma-separated list enumeration. This returns a pointer to the first
  * word in the string, skipping leading ignored characters. '*len' is
@@ -597,3 +651,20 @@ ec_curve_name(int curve)
 		return "unknown";
 	}
 }
+
+/* see brssl.h */
+const char *
+hash_function_name(int id)
+{
+	switch (id) {
+	case br_md5sha1_ID:  return "MD5+SHA-1";
+	case br_md5_ID:      return "MD5";
+	case br_sha1_ID:     return "SHA-1";
+	case br_sha224_ID:   return "SHA-224";
+	case br_sha256_ID:   return "SHA-256";
+	case br_sha384_ID:   return "SHA-384";
+	case br_sha512_ID:   return "SHA-512";
+	default:
+		return "unknown";
+	}
+}