| | varnish-cache/vmod/vmod_blob_id.c |
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/*- |
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* Copyright 2015-2016 UPLEX - Nils Goroll Systemoptimierung |
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* All rights reserved. |
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* |
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* Authors: Nils Goroll <nils.goroll@uplex.de> |
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* Geoffrey Simmons <geoffrey.simmons@uplex.de> |
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* |
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* SPDX-License-Identifier: BSD-2-Clause |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* 1. Redistributions of source code must retain the above copyright notice, |
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* this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright notice, |
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* this list of conditions and the following disclaimer in the documentation |
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* and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY |
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY |
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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#include "config.h" |
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#include <string.h> |
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#include "vdef.h" |
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#include "vrt.h" |
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#include "vas.h" |
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#include "miniobj.h" |
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#include "vmod_blob.h" |
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size_t |
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id_encode_l(size_t l) |
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{ |
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return (l + 1); |
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} |
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size_t |
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id_decode_l(size_t l) |
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{ |
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return (l); |
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} |
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ssize_t |
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id_encode(const enum encoding enc, const enum case_e kase, |
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blob_dest_t buf, blob_len_t buflen, |
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blob_src_t in, blob_len_t inlen) |
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{ |
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(void) enc; |
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(void) kase; |
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AN(buf); |
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if (buflen < inlen + 1) |
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return (-1); |
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if (in == NULL || inlen == 0) |
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return (0); |
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memcpy(buf, in, inlen); |
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return (inlen); |
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} |
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ssize_t |
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id_decode(const enum encoding enc, blob_dest_t buf, |
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blob_len_t buflen, ssize_t n, VCL_STRANDS strings) |
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{ |
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const char *s; |
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char *dest = buf; |
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size_t len, outlen = 0, c = SIZE_MAX; |
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int i; |
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(void)enc; |
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AN(buf); |
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CHECK_OBJ_NOTNULL(strings, STRANDS_MAGIC); |
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if (n >= 0) |
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c = n; |
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for (i = 0; c > 0 && i < strings->n; i++) { |
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s = strings->p[i]; |
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if (s == NULL || *s == '\0') |
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continue; |
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len = strlen(s); |
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if (len > c) |
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len = c; |
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c -= len; |
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if ((outlen += len) > buflen) { |
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errno = ENOMEM; |
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return (-1); |
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} |
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memcpy(dest, s, len); |
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dest += len; |
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} |
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return (outlen); |
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} |