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add another test program to check if a CDF-5 file has a corrupted header

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This commit is contained in:
Wei-keng Liao 2017-09-16 14:30:09 -05:00
parent f00c43fc04
commit e397001bfe
3 changed files with 64 additions and 2 deletions
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4
nc_test/Makefile.am
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@ -17,7 +17,7 @@ tst_diskless.nc tst_diskless2.nc \
tst_diskless3.nc tst_diskless3_file.cdl tst_diskless3_memory.cdl \
tst_diskless4.cdl tst_diskless4.nc tst_formatx.nc nc_test_cdf5.nc \
unlim.nc tst_inq_type.nc tst_elatefill.nc tst_global_fillval.nc \
tst_large_cdf5.nc
tst_large_cdf5.nc tst_cdf5_begin.nc
check_PROGRAMS =
@ -46,7 +46,7 @@ AM_CPPFLAGS += -I$(top_builddir)/liblib -I$(top_builddir)/include -I$(top_srcdir
# If the user asked for large file tests, then add them.
if LARGE_FILE_TESTS
TESTPROGRAMS += quick_large_files tst_big_var6 tst_big_var2 \
tst_big_rvar tst_big_var tst_large large_files tst_large_cdf5
tst_big_rvar tst_big_var tst_large large_files tst_large_cdf5 tst_cdf5_begin
endif # LARGE_FILE_TESTS
if BUILD_BENCHMARKS

6
nc_test/run_cdf5.sh Executable file
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@ -0,0 +1,6 @@
#!/bin/sh
set -e
./tst_open_cdf5 ${srcdir}/bad_cdf5_begin.nc

56
nc_test/tst_cdf5_begin.c Normal file
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@ -0,0 +1,56 @@
#include <stdio.h>
#include <stdlib.h>
#include <netcdf.h>
/* When using NetCDF 4.4.1 ad prior to create a CDF-5 file and defining a small
* variable after a big variable (> 2^32-3 bytes), the file starting offset of
* the small variable (and all variables defined after the big variable) is
* calculated incorrectly. This test program detects this big by checks the
* contents of the overlapped.
*/
#define ERR {if(err!=NC_NOERR){printf("Error at line %d in %s: %s\n", __LINE__,__FILE__, nc_strerror(err));nerrs++;}}
#define FILE_NAME "tst_cdf5_begin.nc"
int main(int argc, char *argv[])
{
int i, err, nerrs=0, ncid, dimid[2], varid[2];
short buf[10];
size_t start, count;
err = nc_create(FILE_NAME, NC_CLOBBER|NC_64BIT_DATA, &ncid); ERR;
err = nc_def_dim(ncid, "dim0", NC_MAX_UINT, &dimid[0]); ERR
err = nc_def_dim(ncid, "dim1", 10, &dimid[1]); ERR
/* define one small variable after one big variable */
err = nc_def_var(ncid, "var_big", NC_SHORT, 1, &dimid[0], &varid[0]); ERR
err = nc_def_var(ncid, "var_small", NC_SHORT, 1, &dimid[1], &varid[1]); ERR
err = nc_set_fill(ncid, NC_NOFILL, NULL); ERR
err = nc_enddef(ncid); ERR
/* write to var_big in location overlapping with var_small when using
* netCDF 4.4.x or prior */
start = NC_MAX_UINT/sizeof(short);
count = 10;
for (i=0; i<10; i++) buf[i] = i;
err = nc_put_vara_short(ncid, varid[0], &start, &count, buf); ERR
/* write var_small */
for (i=0; i<10; i++) buf[i] = -1;
err = nc_put_var_short(ncid, varid[1], buf); ERR
/* read back var_big and check contents */
for (i=0; i<10; i++) buf[i] = -1;
err = nc_get_vara_short(ncid, varid[0], &start, &count,buf); ERR
for (i=0; i<10; i++) {
if (buf[i] != i) {
printf("Error at buf[%d] expect %d but got %hd\n",i,i,buf[i]);
nerrs++;
}
}
err = nc_close(ncid); ERR
return (nerrs > 0);
}