Flawfinder version 2.0.10, (C) 2001-2019 David A. Wheeler.
Number of rules (primarily dangerous function names) in C/C++ ruleset: 223
Examining data/hmat-oss-1.2.0/examples/c-cholesky.c
Examining data/hmat-oss-1.2.0/examples/c-cylinder.c
Examining data/hmat-oss-1.2.0/examples/c-simple-cylinder.c
Examining data/hmat-oss-1.2.0/examples/c-simple-kriging.c
Examining data/hmat-oss-1.2.0/examples/cylinder.cpp
Examining data/hmat-oss-1.2.0/examples/kriging.cpp
Examining data/hmat-oss-1.2.0/include/hmat/hmat.h
Examining data/hmat-oss-1.2.0/src/admissibility.cpp
Examining data/hmat-oss-1.2.0/src/admissibility.hpp
Examining data/hmat-oss-1.2.0/src/assembly.cpp
Examining data/hmat-oss-1.2.0/src/assembly.hpp
Examining data/hmat-oss-1.2.0/src/blas_overloads.hpp
Examining data/hmat-oss-1.2.0/src/c_wrapping.hpp
Examining data/hmat-oss-1.2.0/src/cluster_tree.cpp
Examining data/hmat-oss-1.2.0/src/cluster_tree.hpp
Examining data/hmat-oss-1.2.0/src/clustering.cpp
Examining data/hmat-oss-1.2.0/src/clustering.hpp
Examining data/hmat-oss-1.2.0/src/common/chrono.h
Examining data/hmat-oss-1.2.0/src/common/context.cpp
Examining data/hmat-oss-1.2.0/src/common/context.hpp
Examining data/hmat-oss-1.2.0/src/common/memory_instrumentation.hpp
Examining data/hmat-oss-1.2.0/src/common/my_assert.h
Examining data/hmat-oss-1.2.0/src/common/memory_instrumentation.cpp
Examining data/hmat-oss-1.2.0/src/compression.cpp
Examining data/hmat-oss-1.2.0/src/compression.hpp
Examining data/hmat-oss-1.2.0/src/coordinates.cpp
Examining data/hmat-oss-1.2.0/src/coordinates.hpp
Examining data/hmat-oss-1.2.0/src/data_types.cpp
Examining data/hmat-oss-1.2.0/src/data_types.hpp
Examining data/hmat-oss-1.2.0/src/default_engine.cpp
Examining data/hmat-oss-1.2.0/src/default_engine.hpp
Examining data/hmat-oss-1.2.0/src/disable_threading.cpp
Examining data/hmat-oss-1.2.0/src/disable_threading.hpp
Examining data/hmat-oss-1.2.0/src/fromdouble.cpp
Examining data/hmat-oss-1.2.0/src/fromdouble.hpp
Examining data/hmat-oss-1.2.0/src/full_matrix.hpp
Examining data/hmat-oss-1.2.0/src/h_matrix.cpp
Examining data/hmat-oss-1.2.0/src/h_matrix.hpp
Examining data/hmat-oss-1.2.0/src/hmat_cpp_interface.cpp
Examining data/hmat-oss-1.2.0/src/hmat_cpp_interface.hpp
Examining data/hmat-oss-1.2.0/src/lapack_exception.hpp
Examining data/hmat-oss-1.2.0/src/lapack_operations.cpp
Examining data/hmat-oss-1.2.0/src/lapack_operations.hpp
Examining data/hmat-oss-1.2.0/src/lapack_overloads.hpp
Examining data/hmat-oss-1.2.0/src/postscript.cpp
Examining data/hmat-oss-1.2.0/src/postscript.hpp
Examining data/hmat-oss-1.2.0/src/recursion.cpp
Examining data/hmat-oss-1.2.0/src/recursion.hpp
Examining data/hmat-oss-1.2.0/src/rk_matrix.cpp
Examining data/hmat-oss-1.2.0/src/rk_matrix.hpp
Examining data/hmat-oss-1.2.0/src/system_types.h
Examining data/hmat-oss-1.2.0/src/tree.hpp
Examining data/hmat-oss-1.2.0/src/uncompressed_block.hpp
Examining data/hmat-oss-1.2.0/src/uncompressed_values.cpp
Examining data/hmat-oss-1.2.0/src/uncompressed_values.hpp
Examining data/hmat-oss-1.2.0/src/c_default_interface.cpp
Examining data/hmat-oss-1.2.0/src/full_matrix.cpp

FINAL RESULTS:

data/hmat-oss-1.2.0/src/common/my_assert.h:65:5:  [4] (format) vfprintf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
    vfprintf(stderr, format, arglist);
data/hmat-oss-1.2.0/src/common/memory_instrumentation.cpp:57:17:  [3] (buffer) getenv:
  Environment variables are untrustable input if they can be set by an
  attacker. They can have any content and length, and the same variable can
  be set more than once (CWE-807, CWE-20). Check environment variables
  carefully before using them.
    char * ws = getenv("HMAT_MEMINSTR_WS");
data/hmat-oss-1.2.0/src/common/memory_instrumentation.cpp:59:17:  [3] (buffer) getenv:
  Environment variables are untrustable input if they can be set by an
  attacker. They can have any content and length, and the same variable can
  be set more than once (CWE-807, CWE-20). Check environment variables
  carefully before using them.
    char * mi = getenv("HMAT_MEMINSTR_MI");
data/hmat-oss-1.2.0/src/lapack_operations.cpp:281:28:  [3] (buffer) getenv:
  Environment variables are untrustable input if they can be set by an
  attacker. They can have any content and length, and the same variable can
  be set more than once (CWE-807, CWE-20). Check environment variables
  carefully before using them.
  static char * useGESSD = getenv("HMAT_GESSD");
data/hmat-oss-1.2.0/examples/c-cholesky.c:55:15:  [2] (misc) fopen:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
  FILE * fp = fopen(filename, "w");
data/hmat-oss-1.2.0/examples/c-cholesky.c:232:7:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
  n = atoi(argv[1]);
data/hmat-oss-1.2.0/examples/c-cholesky.c:325:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(frhsCopy2, frhs, n*sizeof(float));
data/hmat-oss-1.2.0/examples/c-cholesky.c:326:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(drhsCopy2, drhs, n*sizeof(double));
data/hmat-oss-1.2.0/examples/c-cholesky.c:338:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(frhs, frhsCopy1, n*sizeof(float));
data/hmat-oss-1.2.0/examples/c-cholesky.c:339:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(drhs, drhsCopy1, n*sizeof(double));
data/hmat-oss-1.2.0/examples/c-cholesky.c:340:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(frhsCopy3, frhsCopy1, n*sizeof(float));
data/hmat-oss-1.2.0/examples/c-cholesky.c:341:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(drhsCopy3, drhsCopy1, n*sizeof(double));
data/hmat-oss-1.2.0/examples/c-cholesky.c:366:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(frhsCopy3, frhs, n*sizeof(float));
data/hmat-oss-1.2.0/examples/c-cholesky.c:367:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(drhsCopy3, drhs, n*sizeof(double));
data/hmat-oss-1.2.0/examples/c-cylinder.c:73:15:  [2] (misc) fopen:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
  FILE * fp = fopen(filename, "w");
data/hmat-oss-1.2.0/examples/c-cylinder.c:231:7:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
  n = atoi(argv[1]);
data/hmat-oss-1.2.0/examples/c-simple-cylinder.c:73:15:  [2] (misc) fopen:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
  FILE * fp = fopen(filename, "w");
data/hmat-oss-1.2.0/examples/c-simple-cylinder.c:138:7:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
  n = atoi(argv[1]);
data/hmat-oss-1.2.0/examples/c-simple-kriging.c:107:15:  [2] (misc) fopen:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
  FILE * fp = fopen(filename, "w");
data/hmat-oss-1.2.0/examples/c-simple-kriging.c:124:8:  [2] (misc) fopen:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
  fp = fopen(filename, "r");
data/hmat-oss-1.2.0/examples/cylinder.cpp:196:11:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
  int n = atoi(argv[1]);
data/hmat-oss-1.2.0/src/cluster_tree.cpp:86:5:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
    memcpy(group_index_, group_index, sizeof(int) * size);
data/hmat-oss-1.2.0/src/cluster_tree.cpp:107:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(result->perm_i2e_, perm_i2e_, sizeof(int) * coordinates_->size());
data/hmat-oss-1.2.0/src/cluster_tree.cpp:108:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(result->perm_e2i_, perm_e2i_, sizeof(int) * coordinates_->size());
data/hmat-oss-1.2.0/src/cluster_tree.cpp:186:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(&bbMin[0], &coord[dimension_*myIndices[0]], sizeof(double) * dimension_);
data/hmat-oss-1.2.0/src/cluster_tree.cpp:187:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(&bbMax[0], &coord[dimension_*myIndices[0]], sizeof(double) * dimension_);
data/hmat-oss-1.2.0/src/cluster_tree.cpp:204:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(&bbMin[0], bboxMin, sizeof(double) * dimension_);
data/hmat-oss-1.2.0/src/cluster_tree.cpp:205:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(&bbMax[0], bboxMax, sizeof(double) * dimension_);
data/hmat-oss-1.2.0/src/common/context.cpp:186:9:  [2] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf. Risk is low because the source has a constant maximum length.
        sprintf(name, "Worker #%03d - %p", index, enclosing);
data/hmat-oss-1.2.0/src/common/memory_instrumentation.cpp:48:25:  [2] (misc) fopen:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
    FILE * statm_file = fopen("/proc/self/statm", "r");
data/hmat-oss-1.2.0/src/common/memory_instrumentation.cpp:58:27:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
    write_sampling = ws ? atoi(ws) : 1;
data/hmat-oss-1.2.0/src/common/memory_instrumentation.cpp:60:30:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
    mallinfo_sampling = mi ? atoi(mi) : 100;
data/hmat-oss-1.2.0/src/common/memory_instrumentation.cpp:96:15:  [2] (misc) fopen:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
    output_ = fopen(filename.c_str(), "w+");
data/hmat-oss-1.2.0/src/common/memory_instrumentation.cpp:102:22:  [2] (misc) fopen:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
    FILE * labelsf = fopen((filename_+".labels").c_str(), "w");
data/hmat-oss-1.2.0/src/compression.cpp:378:5:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
    memcpy(tmpA.m + nu * tmpA.rows, m->m + j_nu * m->rows,
data/hmat-oss-1.2.0/src/compression.cpp:424:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(newA->m, tmpA.m, sizeof(dp_t) * tmpA.rows * nu);
data/hmat-oss-1.2.0/src/compression.cpp:427:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(newB->m, tmpB.m, sizeof(dp_t) * tmpB.rows * nu);
data/hmat-oss-1.2.0/src/compression.cpp:532:7:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
      memcpy(newA->m + (i * newA->rows), aCols[i]->v, sizeof(dp_t) * newA->rows);
data/hmat-oss-1.2.0/src/compression.cpp:538:7:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
      memcpy(newB->m + (i * newB->rows), bCols[i]->v, sizeof(dp_t) * newB->rows);
data/hmat-oss-1.2.0/src/compression.cpp:688:5:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
    memcpy(newA->m + (i * newA->rows), aCols[i]->v, sizeof(dp_t) * newA->rows);
data/hmat-oss-1.2.0/src/compression.cpp:694:5:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
    memcpy(newB->m + (i * newB->rows), bCols[i]->v, sizeof(dp_t) * newB->rows);
data/hmat-oss-1.2.0/src/coordinates.cpp:41:10:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
    std::memcpy(v_, coord, sizeof(double) * size_ * dimension_);
data/hmat-oss-1.2.0/src/coordinates.cpp:53:8:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  std::memcpy(v_, other.v_, sizeof(double) * size_ * dimension_);
data/hmat-oss-1.2.0/src/full_matrix.cpp:271:5:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
    memcpy(result->m, m, size);
data/hmat-oss-1.2.0/src/full_matrix.cpp:276:7:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
      memcpy(result->m + resultOffset, m + offset, rows * sizeof(T));
data/hmat-oss-1.2.0/src/full_matrix.cpp:283:5:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
    memcpy(result->diagonal->v, diagonal->v, rows * sizeof(T));
data/hmat-oss-1.2.0/src/full_matrix.cpp:347:7:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
      memcpy(diag, d->v, d->rows * sizeof(T));
data/hmat-oss-1.2.0/src/full_matrix.cpp:590:5:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
    memcpy(m, a->m, size * sizeof(T));
data/hmat-oss-1.2.0/src/full_matrix.cpp:652:14:  [2] (misc) fopen:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
  FILE * f = fopen(filename, "rb");
data/hmat-oss-1.2.0/src/full_matrix.cpp:680:8:  [2] (misc) open:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
  fd = open(filename, O_RDWR | O_CREAT | O_TRUNC, (mode_t)0600);
data/hmat-oss-1.2.0/src/full_matrix.cpp:698:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
  memcpy(mat, m, size - 5 * sizeof(int));
data/hmat-oss-1.2.0/src/full_matrix.cpp:752:8:  [2] (misc) open:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
  fd = open(filename, O_RDWR | O_CREAT | O_TRUNC, (mode_t)0600);
data/hmat-oss-1.2.0/src/full_matrix.cpp:789:16:  [2] (misc) open:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
  result->fd = open(filename, O_RDONLY);
data/hmat-oss-1.2.0/src/h_matrix.cpp:81:5:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
    memcpy(column, tmp.v, sizeof(T) * n);
data/hmat-oss-1.2.0/src/h_matrix.cpp:97:5:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
    memcpy(column, tmp.v, sizeof(T) * n);
data/hmat-oss-1.2.0/src/h_matrix.cpp:1360:11:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
          memcpy(full()->diagonal->v, oF->diagonal->v, oF->rows * sizeof(T));
data/hmat-oss-1.2.0/src/h_matrix.cpp:1397:8:  [2] (misc) open:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
  file.open(filename.c_str());
data/hmat-oss-1.2.0/src/h_matrix.cpp:2097:7:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
      memcpy(diag, full()->diagonal->v, full()->rows * sizeof(T));
data/hmat-oss-1.2.0/src/postscript.cpp:132:10:  [2] (misc) open:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
    file.open(filename.c_str());
data/hmat-oss-1.2.0/examples/c-simple-kriging.c:60:9:  [1] (buffer) fgetc:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
    c = fgetc(stream);
data/hmat-oss-1.2.0/examples/c-simple-kriging.c:84:13:  [1] (buffer) fgetc:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
        c = fgetc(stream);
data/hmat-oss-1.2.0/examples/c-simple-kriging.c:120:11:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
  ssize_t read;

ANALYSIS SUMMARY:

Hits = 62
Lines analyzed = 16762 in approximately 0.49 seconds (34304 lines/second)
Physical Source Lines of Code (SLOC) = 10916
Hits@level = [0]  96 [1]   3 [2]  55 [3]   3 [4]   1 [5]   0
Hits@level+ = [0+] 158 [1+]  62 [2+]  59 [3+]   4 [4+]   1 [5+]   0
Hits/KSLOC@level+ = [0+] 14.4742 [1+] 5.67974 [2+] 5.40491 [3+] 0.366435 [4+] 0.0916086 [5+]   0
Dot directories skipped = 1 (--followdotdir overrides)
Minimum risk level = 1
Not every hit is necessarily a security vulnerability.
There may be other security vulnerabilities; review your code!
See 'Secure Programming HOWTO'
(https://dwheeler.com/secure-programs) for more information.