/src/igraph/fuzzing/read_lgl.cpp
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | IGraph library. |
3 | | Copyright (C) 2022-2023 The igraph development team |
4 | | |
5 | | This program is free software; you can redistribute it and/or modify |
6 | | it under the terms of the GNU General Public License as published by |
7 | | the Free Software Foundation; either version 2 of the License, or |
8 | | (at your option) any later version. |
9 | | |
10 | | This program is distributed in the hope that it will be useful, |
11 | | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | | GNU General Public License for more details. |
14 | | |
15 | | You should have received a copy of the GNU General Public License |
16 | | along with this program; if not, write to the Free Software |
17 | | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
18 | | 02110-1301 USA |
19 | | */ |
20 | | |
21 | | #include <igraph.h> |
22 | | #include <cstdio> |
23 | | |
24 | | extern "C" |
25 | 1.25k | int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { |
26 | | |
27 | 1.25k | igraph_set_error_handler(igraph_error_handler_ignore); |
28 | 1.25k | igraph_set_warning_handler(igraph_warning_handler_ignore); |
29 | | |
30 | | // Turn on attribute handling |
31 | 1.25k | igraph_set_attribute_table(&igraph_cattribute_table); |
32 | | |
33 | | // Read input file |
34 | 1.25k | FILE *ifile = fmemopen((void*) data, size, "r"); |
35 | 1.25k | if (!ifile) { |
36 | 0 | return 0; |
37 | 0 | } |
38 | | |
39 | | // Do the fuzzing |
40 | 1.25k | igraph_t g; |
41 | 1.25k | if (igraph_read_graph_lgl(&g, ifile, 1, IGRAPH_ADD_WEIGHTS_IF_PRESENT, IGRAPH_UNDIRECTED) == IGRAPH_SUCCESS) { |
42 | | |
43 | 1.00k | FILE *ofile = fopen("/dev/null", "w"); |
44 | 1.00k | if (ofile) { |
45 | | // The "weight" attribute may not exist. |
46 | | // In this case it is ignored with a warning. |
47 | 1.00k | igraph_write_graph_lgl(&g, ofile, "name", "weight", true); |
48 | 1.00k | fclose(ofile); |
49 | 1.00k | } |
50 | | |
51 | | // Clean up |
52 | 1.00k | igraph_destroy(&g); |
53 | 1.00k | } |
54 | | |
55 | | // no need to call igraph_destroy() if igraph_read_graph_lgl() returns an |
56 | | // error code as we don't have a valid graph object in that case |
57 | | |
58 | 1.25k | fclose(ifile); |
59 | | |
60 | 1.25k | IGRAPH_ASSERT(IGRAPH_FINALLY_STACK_EMPTY); |
61 | | |
62 | 1.25k | return 0; |
63 | 1.25k | } |