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Member "hashcat-6.2.6/deps/LZMA-SDK/C/7zBuf2.c" (2 Sep 2022, 970 Bytes) of package /linux/privat/hashcat-6.2.6.tar.gz:

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    1 /* 7zBuf2.c -- Byte Buffer
    2 2017-04-03 : Igor Pavlov : Public domain */
    3 
    4 #include "Precomp.h"
    5 
    6 #include <string.h>
    7 
    8 #include "7zBuf.h"
    9 
   10 void DynBuf_Construct(CDynBuf *p)
   11 {
   12   p->data = 0;
   13   p->size = 0;
   14   p->pos = 0;
   15 }
   16 
   17 void DynBuf_SeekToBeg(CDynBuf *p)
   18 {
   19   p->pos = 0;
   20 }
   21 
   22 int DynBuf_Write(CDynBuf *p, const Byte *buf, size_t size, ISzAllocPtr alloc)
   23 {
   24   if (size > p->size - p->pos)
   25   {
   26     size_t newSize = p->pos + size;
   27     Byte *data;
   28     newSize += newSize / 4;
   29     data = (Byte *)ISzAlloc_Alloc(alloc, newSize);
   30     if (!data)
   31       return 0;
   32     p->size = newSize;
   33     if (p->pos != 0)
   34       memcpy(data, p->data, p->pos);
   35     ISzAlloc_Free(alloc, p->data);
   36     p->data = data;
   37   }
   38   if (size != 0)
   39   {
   40     memcpy(p->data + p->pos, buf, size);
   41     p->pos += size;
   42   }
   43   return 1;
   44 }
   45 
   46 void DynBuf_Free(CDynBuf *p, ISzAllocPtr alloc)
   47 {
   48   ISzAlloc_Free(alloc, p->data);
   49   p->data = 0;
   50   p->size = 0;
   51   p->pos = 0;
   52 }