/*
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* Copyright (c) 2017 The strace developers.
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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
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* 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
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "defs.h"
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struct dyxlat {
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size_t used;
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size_t allocated;
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struct xlat *xlat;
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};
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#define MARK_END(xlat) \
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do { \
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(xlat).val = 0; \
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(xlat).str = 0; \
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} while (0)
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struct dyxlat *
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dyxlat_alloc(const size_t nmemb)
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{
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struct dyxlat *const dyxlat = xmalloc(sizeof(*dyxlat));
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dyxlat->used = 1;
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dyxlat->allocated = nmemb;
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dyxlat->xlat = xgrowarray(NULL, &dyxlat->allocated, sizeof(struct xlat));
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MARK_END(dyxlat->xlat[0]);
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return dyxlat;
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}
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void
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dyxlat_free(struct dyxlat *const dyxlat)
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{
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size_t i;
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for (i = 0; i < dyxlat->used - 1; ++i) {
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free((void *) dyxlat->xlat[i].str);
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dyxlat->xlat[i].str = NULL;
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}
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free(dyxlat->xlat);
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dyxlat->xlat = NULL;
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free(dyxlat);
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}
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const struct xlat *
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dyxlat_get(const struct dyxlat *const dyxlat)
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{
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return dyxlat->xlat;
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}
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void
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dyxlat_add_pair(struct dyxlat *const dyxlat, const uint64_t val,
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const char *const str, const size_t len)
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{
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size_t i;
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for (i = 0; i < dyxlat->used - 1; ++i) {
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if (dyxlat->xlat[i].val == val) {
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if (strncmp(dyxlat->xlat[i].str, str, len) == 0
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&& dyxlat->xlat[i].str[len] == '\0')
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return;
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free((void *) dyxlat->xlat[i].str);
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dyxlat->xlat[i].str = xstrndup(str, len);
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return;
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}
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}
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if (dyxlat->used >= dyxlat->allocated)
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dyxlat->xlat = xgrowarray(dyxlat->xlat, &dyxlat->allocated,
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sizeof(struct xlat));
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dyxlat->xlat[dyxlat->used - 1].val = val;
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dyxlat->xlat[dyxlat->used - 1].str = xstrndup(str, len);
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MARK_END(dyxlat->xlat[dyxlat->used]);
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dyxlat->used++;
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}
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