[mem_file] Fix Stm_MemFileWrite() buffer management.

pull/2/head
Lorenzo Cogotti 2 years ago
parent bc0db5aeed
commit 10052d7a8d

@ -148,12 +148,12 @@ Sint64 Stm_MemFileWrite(MemFile *stm, const void *buf, size_t nbytes)
if ((stm->flags & MEM_FILE_WRBIT) == 0) if ((stm->flags & MEM_FILE_WRBIT) == 0)
return -1; return -1;
size_t navail = stm->cap - stm->nbytes; size_t navail = stm->cap - stm->pos;
size_t nreq = nbytes + 1; // for trailing '\0' size_t nreq = nbytes + 1; // for trailing '\0'
if (navail < nreq) { if (navail < nreq) {
if ((stm->flags & MEM_FILE_NOGROWBIT) == 0) { if ((stm->flags & MEM_FILE_NOGROWBIT) == 0) {
// grow buffer // grow buffer
if (Stm_MemFileGrow(stm, nreq) != OK) if (Stm_MemFileGrow(stm, stm->pos + nreq) != OK)
return -1; return -1;
} else } else

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