diff options
Diffstat (limited to 'erts/emulator/drivers/common/gzio.c')
| -rw-r--r-- | erts/emulator/drivers/common/gzio.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/erts/emulator/drivers/common/gzio.c b/erts/emulator/drivers/common/gzio.c index 8ec2c3f762..ef539f8f9b 100644 --- a/erts/emulator/drivers/common/gzio.c +++ b/erts/emulator/drivers/common/gzio.c @@ -20,6 +20,7 @@ #endif #include <ctype.h> #include "erl_driver.h" +#include "erl_efile.h" #include "sys.h" #ifdef __WIN32__ @@ -597,6 +598,15 @@ erts_gzseek(ErtsGzFile file, int offset, int whence) int pos; gz_stream* s = (gz_stream *) file; + switch (whence) { + case EFILE_SEEK_SET: whence = SEEK_SET; break; + case EFILE_SEEK_CUR: whence = SEEK_CUR; break; + case EFILE_SEEK_END: whence = SEEK_END; break; + default: + errno = EINVAL; + return -1; + } + if (s == NULL) { errno = EINVAL; return -1; |