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#include "parse.h"
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void bs_init_membuf(struct bytestream* bs,const unsigned char* membuf,size_t len) {
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bs->type = MEMBUF;
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bs->cur = 0;
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bs->max = len;
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bs->u.base=membuf;
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if ((const unsigned char*)(((uintptr_t)membuf) + len) < membuf) {
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bs->cur = 1; // if the buffer + length is implausible, set error immediately
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bs->max = 0;
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}
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}
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#ifdef UNITTEST
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#include <assert.h>
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#undef UNITTEST
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#include "buffer/bs_get.c"
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#include "buffer/bs_err.c"
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ssize_t buffer_getc(buffer* b,char* c) { return -1; }
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int main() {
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static struct bytestream bs;
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bs_init_membuf(&bs, (const unsigned char*)"fnord\n", 6);
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char buf[7];
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int i;
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for (i=0; i<7; ++i) buf[i]=bs_get(&bs);
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assert(!memcmp(buf,"fnord\n",7)); // we should have gotten everything and then a 0 byte
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assert(bs_err(&bs)); // that should have set the error flag
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/* see if we catch an impossible buffer size */
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bs_init_membuf(&bs, (const unsigned char*)"fnord\n", (size_t)-1);
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assert(bs_err(&bs));
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}
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#endif
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