Roll libxml to 2.9.3

third_party/libxml/src/xzlib.c

 /**
  * xzlib.c: front end for the transparent suport of lzma compression
  *          at the I/O layer, based on an example file from lzma project
  *
  * See Copyright for the status of this software.
  *
  * Anders F Bjorklund <afb@users.sourceforge.net>
  */
 #define IN_LIBXML
 #include "libxml.h"
-#ifdef HAVE_LZMA_H
+#ifdef LIBXML_LZMA_ENABLED
 
 #include <string.h>
 #ifdef HAVE_ERRNO_H
 #include <errno.h>
 #endif
 
 
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
 #endif
 #ifdef HAVE_SYS_STAT_H
 #include <sys/stat.h>
 #endif
 #ifdef HAVE_FCNTL_H
 #include <fcntl.h>
 #endif
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
 #ifdef HAVE_STDLIB_H
 #include <stdlib.h>
 #endif
 #ifdef HAVE_ZLIB_H
 #include <zlib.h>
 #endif
+#ifdef HAVE_LZMA_H
 #include <lzma.h>
+#endif
 
 #include "xzlib.h"
 #include <libxml/xmlmemory.h>
 
 /* values for xz_state how */
 #define LOOK 0                  /* look for a gzip/lzma header */
 #define COPY 1                  /* copy input directly */
 #define GZIP 2                  /* decompress a gzip stream */
 #define LZMA 3                  /* decompress a lzma stream */
 
@@ skipping 526 matching lines @@
 #endif
             ret = lzma_code(strm, action);
         if (ret == LZMA_MEM_ERROR) {
             xz_error(state, LZMA_MEM_ERROR, "out of memory");
             return -1;
         }
         if (ret == LZMA_DATA_ERROR) {
             xz_error(state, LZMA_DATA_ERROR, "compressed data error");
             return -1;
         }
+        if (ret == LZMA_PROG_ERROR) {
+            xz_error(state, LZMA_PROG_ERROR, "compression error");
+            return -1;
+        }
     } while (strm->avail_out && ret != LZMA_STREAM_END);
 
     /* update available output and crc check value */
     state->have = had - strm->avail_out;
     state->next = strm->next_out - state->have;
 #ifdef HAVE_ZLIB_H
     state->zstrm.adler =
         crc32(state->zstrm.adler, state->next, state->have);
 #endif
 
@@ skipping 194 matching lines @@
         state->init = 0;
 #endif
         xmlFree(state->out);
         xmlFree(state->in);
     }
     xmlFree(state->path);
     ret = close(state->fd);
     xmlFree(state);
     return ret ? ret : LZMA_OK;
 }
-#endif /* HAVE_LZMA_H */
+#endif /* LIBXML_LZMA_ENABLED */