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