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-rw-r--r--test/gen_bad_offset.c147
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diff --git a/test/gen_bad_offset.c b/test/gen_bad_offset.c
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+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group. *
+ * Copyright by the Board of Trustees of the University of Illinois. *
+ * All rights reserved. *
+ * *
+ * This file is part of HDF5. The full HDF5 copyright notice, including *
+ * terms governing use, modification, and redistribution, is contained in *
+ * the COPYING file, which can be found at the root of the source code *
+ * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
+ * If you do not have access to either file, you may request a copy from *
+ * help@hdfgroup.org. *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * Purpose: Generate an HDF5 file for testing H5FFV-10216
+ */
+#include "h5test.h"
+
+#define TESTFILE "bad_offset.h5"
+#define GRP1 "group1"
+#define GRP2 "group2"
+#define DSET "dsetA"
+#define SOFT1 "soft_one"
+#define SOFT2 "soft_two"
+
+
+
+/*-------------------------------------------------------------------------
+ * Function: main
+ *
+ * Generate an HDF5 file with groups, datasets and symbolic links.
+ * After the file is generated, write bad offset values to
+ * the heap at 3 locations in the file:
+ * (A) Open the file:
+ * fd = HDopen(TESTFILE, O_RDWR, 0663);
+ * (B) Position the file at:
+ * (1) HDlseek(fd, (HDoff_t)880, SEEK_SET);
+ * "/group1/group2": replace heap offset "8" by bad offset
+ * (2) HDlseek(fd, (HDoff_t)1512, SEEK_SET);
+ * "/dsetA": replace name offset into private heap "72" by bad offset
+ * (3) HDlseek(fd, (HDoff_t)1616, SEEK_SET);
+ * /soft_one: replace link value offset in the scratch pad "32" by bad offset
+ * (C) Write the bad offset value to the file for (1), (2) and (3):
+ * write(fd, &val, sizeof(val));
+ *
+ * Note: if the groups/datasets/symbolic links are changed in the file,
+ * the above locations need to be adjusted accordingly.
+ *
+ * Return: EXIT_SUCCESS/EXIT_FAILURE
+ *
+ *-------------------------------------------------------------------------
+ */
+int
+main(void)
+{
+ hid_t fid = -1, gid1 = -1, gid2 = -1; /* File and group IDs */
+ hid_t did = -1, sid = -1; /* Dataset and dataspace IDs */
+ int fd = -1; /* File descriptor */
+ int64_t val = 999; /* Bad offset value */
+
+ /* Create the test file */
+ if((fid = H5Fcreate(TESTFILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+ FAIL_STACK_ERROR
+
+ /* Create two groups */
+ if((gid1 = H5Gcreate2(fid, GRP1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+ FAIL_STACK_ERROR
+ if((gid2 = H5Gcreate2(gid1, GRP2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+ FAIL_STACK_ERROR
+
+ /* Close the groups */
+ if(H5Gclose(gid1) < 0)
+ FAIL_STACK_ERROR
+ if(H5Gclose(gid2) < 0)
+ FAIL_STACK_ERROR
+
+ /* Create soft links to the groups */
+ if(H5Lcreate_soft("/group1", fid, SOFT1, H5P_DEFAULT, H5P_DEFAULT) < 0)
+ FAIL_STACK_ERROR
+ if(H5Lcreate_soft("/group1/group2", fid, SOFT2, H5P_DEFAULT, H5P_DEFAULT) < 0)
+ FAIL_STACK_ERROR
+
+ /* Create a dataset */
+ if((sid = H5Screate(H5S_SCALAR)) < 0)
+ FAIL_STACK_ERROR
+ if((did = H5Dcreate2(fid, DSET, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+ FAIL_STACK_ERROR
+
+ /* Close the dataset */
+ if(H5Dclose(did) < 0)
+ FAIL_STACK_ERROR
+
+ /* Close the dataspace */
+ if(H5Sclose(sid) < 0)
+ FAIL_STACK_ERROR
+
+ /* Close the file */
+ if(H5Fclose(fid) < 0)
+ FAIL_STACK_ERROR
+
+ /*
+ * Write bad offset values at 3 locations in the file
+ */
+
+ /* Open the file */
+ if((fd = HDopen(TESTFILE, O_RDWR, 0663)) < 0)
+ FAIL_STACK_ERROR
+
+ /* Position the file for /group1/group2: replace heap offset "8" by bad offset */
+ if(HDlseek(fd, (HDoff_t)880, SEEK_SET) < 0)
+ FAIL_STACK_ERROR
+ /* Write the bad offset value to the file */
+ if(HDwrite(fd, &val, sizeof(val)) < 0)
+ FAIL_STACK_ERROR
+
+ /* Position the file for /dsetA: replace name offset into private heap "72" by bad offset */
+ if(HDlseek(fd, (HDoff_t)1512, SEEK_SET) < 0)
+ FAIL_STACK_ERROR
+ /* Write the bad offset value to the file */
+ if(HDwrite(fd, &val, sizeof(val)) < 0)
+ FAIL_STACK_ERROR
+
+ /* Position the file for /soft_one: replace link value offset in the scratch pad "32" by bad offset */
+ if(HDlseek(fd, (HDoff_t)1616, SEEK_SET) < 0)
+ FAIL_STACK_ERROR
+ /* Write the bad offset value to the file */
+ if(HDwrite(fd, &val, sizeof(val)) < 0)
+ FAIL_STACK_ERROR
+
+ /* Close the file */
+ if(HDclose(fd) < 0)
+ FAIL_STACK_ERROR
+
+ return EXIT_SUCCESS;
+
+error:
+ H5E_BEGIN_TRY {
+ H5Gclose(gid1);
+ H5Gclose(gid2);
+ H5Dclose(did);
+ H5Sclose(sid);
+ H5Fclose(fid);
+ } H5E_END_TRY;
+
+ return EXIT_FAILURE;
+} /* end main() */
+