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more magic numbers

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This commit is contained in:
Ed Hartnett 2018-06-06 12:21:37 -06:00
parent 17da700a5c
commit 0dcdf7198f
1 changed files with 19 additions and 2 deletions
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21
libdispatch/dfile.c
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@ -67,9 +67,9 @@ static char HDF5_SIGNATURE[MAGIC_NUMBER_LEN] = "\211HDF\r\n\032\n";
#ifdef USE_NETCDF4
/* User-defined formats. */
NC_Dispatch *UDF0_dispatch_table = NULL;
char UDF0_magic_number[NC_MAX_MAGIC_NUMBER_LEN + 1];
char UDF0_magic_number[NC_MAX_MAGIC_NUMBER_LEN + 1] = "";
NC_Dispatch *UDF1_dispatch_table = NULL;
char UDF1_magic_number[NC_MAX_MAGIC_NUMBER_LEN + 1];
char UDF1_magic_number[NC_MAX_MAGIC_NUMBER_LEN + 1] = "";
#endif /* USE_NETCDF4 */
/** \defgroup datasets NetCDF File and Data I/O
@ -174,6 +174,23 @@ NC_interpret_magic_number(char* magic, int* model, int* version)
/* Look at the magic number */
*model = 0;
*version = 0;
#ifdef USE_NETCDF4
if (strlen(UDF0_magic_number) &&
!strncmp(magic, UDF0_magic_number, NC_MAX_MAGIC_NUMBER_LEN))
{
*model = NC_FORMATX_UDF0;
*version = 6; /* redundant */
goto done;
}
if (strlen(UDF1_magic_number) &&
!strncmp(magic, UDF1_magic_number, NC_MAX_MAGIC_NUMBER_LEN))
{
*model = NC_FORMATX_UDF1;
*version = 7; /* redundant */
goto done;
}
#endif /* USE_NETCDF4 */
/* Use the complete magic number string for HDF5 */
if(memcmp(magic,HDF5_SIGNATURE,sizeof(HDF5_SIGNATURE))==0) {
*model = NC_FORMATX_NC4;