Andrew's git - gitweb.git/blob

   1/*
   2 * zlib wrappers to make sure we don't silently miss errors
   3 * at init time.
   4 */
   5#include "cache.h"
   6
   7void git_inflate_init(z_streamp strm)
   8{
   9        const char *err;
  10
  11        switch (inflateInit(strm)) {
  12        case Z_OK:
  13                return;
  14
  15        case Z_MEM_ERROR:
  16                err = "out of memory";
  17                break;
  18        case Z_VERSION_ERROR:
  19                err = "wrong version";
  20                break;
  21        default:
  22                err = "error";
  23        }
  24        die("inflateInit: %s (%s)", err, strm->msg ? strm->msg : "no message");
  25}
  26
  27void git_inflate_end(z_streamp strm)
  28{
  29        if (inflateEnd(strm) != Z_OK)
  30                error("inflateEnd: %s", strm->msg ? strm->msg : "failed");
  31}
  32
  33int git_inflate(z_streamp strm, int flush)
  34{
  35        int ret = inflate(strm, flush);
  36        const char *err;
  37
  38        switch (ret) {
  39        /* Out of memory is fatal. */
  40        case Z_MEM_ERROR:
  41                die("inflate: out of memory");
  42
  43        /* Data corruption errors: we may want to recover from them (fsck) */
  44        case Z_NEED_DICT:
  45                err = "needs dictionary"; break;
  46        case Z_DATA_ERROR:
  47                err = "data stream error"; break;
  48        case Z_STREAM_ERROR:
  49                err = "stream consistency error"; break;
  50        default:
  51                err = "unknown error"; break;
  52
  53        /* Z_BUF_ERROR: normal, needs more space in the output buffer */
  54        case Z_BUF_ERROR:
  55        case Z_OK:
  56        case Z_STREAM_END:
  57                return ret;
  58        }
  59        error("inflate: %s (%s)", err, strm->msg ? strm->msg : "no message");
  60        return ret;
  61}