1 files changed, 94 insertions, 0 deletions
diff --git a/lib/ngtcp2_str.h b/lib/ngtcp2_str.h
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+/*
+ * ngtcp2
+ *
+ * Copyright (c) 2017 ngtcp2 contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef NGTCP2_STR_H
+#define NGTCP2_STR_H
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif /* HAVE_CONFIG_H */
+
+#include <ngtcp2/ngtcp2.h>
+
+void *ngtcp2_cpymem(void *dest, const void *src, size_t n);
+
+/*
+ * ngtcp2_setmem writes a string of length |n| consisting only |b| to
+ * the buffer pointed by |dest|.  It returns dest + n;
+ */
+uint8_t *ngtcp2_setmem(uint8_t *dest, uint8_t b, size_t n);
+
+/*
+ * ngtcp2_get_bytes copies |n| bytes from |src| to |dest|, and returns
+ * |src| + |n|.
+ */
+const void *ngtcp2_get_bytes(void *dest, const void *src, size_t n);
+
+/*
+ * ngtcp2_encode_hex encodes |data| of length |len| in hex string.  It
+ * writes additional NULL bytes at the end of the buffer.  The buffer
+ * pointed by |dest| must have at least |len| * 2 + 1 bytes space.
+ * This function returns |dest|.
+ */
+uint8_t *ngtcp2_encode_hex(uint8_t *dest, const uint8_t *data, size_t len);
+
+/*
+ * ngtcp2_encode_ipv4 encodes binary form IPv4 address stored in
+ * |addr| to human readable text form in the buffer pointed by |dest|.
+ * The capacity of buffer must have enough length to store a text form
+ * plus a terminating NULL byte.  The resulting text form ends with
+ * NULL byte.  The function returns |dest|.
+ */
+uint8_t *ngtcp2_encode_ipv4(uint8_t *dest, const uint8_t *addr);
+
+/*
+ * ngtcp2_encode_ipv6 encodes binary form IPv6 address stored in
+ * |addr| to human readable text form in the buffer pointed by |dest|.
+ * The capacity of buffer must have enough length to store a text form
+ * plus a terminating NULL byte.  The resulting text form ends with
+ * NULL byte.  The function produces the canonical form of IPv6 text
+ * representation described in
+ * https://tools.ietf.org/html/rfc5952#section-4.  The function
+ * returns |dest|.
+ */
+uint8_t *ngtcp2_encode_ipv6(uint8_t *dest, const uint8_t *addr);
+
+/*
+ * ngtcp2_encode_printable_ascii encodes |data| of length |len| in
+ * |dest| in the following manner: printable ascii characters are
+ * copied as is.  The other characters are converted to ".".  It
+ * writes additional NULL bytes at the end of the buffer.  |dest| must
+ * have at least |len| + 1 bytes.  This function returns |dest|.
+ */
+char *ngtcp2_encode_printable_ascii(char *dest, const uint8_t *data,
+                                    size_t len);
+
+/*
+ * ngtcp2_cmemeq returns nonzero if the first |n| bytes of the buffers
+ * pointed by |a| and |b| are equal.  The comparison is done in a
+ * constant time manner.
+ */
+int ngtcp2_cmemeq(const uint8_t *a, const uint8_t *b, size_t n);
+
+#endif /* NGTCP2_STR_H */