/src/zip/fuzz/fuzz_entry.c

Source
#include "zip.h"
#include <stdint.h>
#include <stdlib.h>

int LLVMFuzzerTestOneInput(const uint8_t *data, const size_t size) {
  /* Discard inputs larger than 1MB. */
  static const size_t MaxSize = 1024 * 1024;
  if (size < 1 || size > MaxSize) {
    return 0;
  }

  void *buf = NULL;
  size_t bufsize = 0;
  struct zip_t *zip = zip_stream_open((const char *)data, size, 0, 'r');
  if (NULL == zip) {
    goto end;
  }

  const ssize_t zip_entries_count = zip_entries_total(zip);

  if (zip_entries_count <= 0) {
    goto end;
  }

  if (0 != zip_entry_openbyindex(zip, 0)) {
    goto end;
  }

  zip_entry_read(zip, &buf, &bufsize);

end:
  zip_entry_close(zip);
  if (NULL != zip) {
    zip_close(zip);
  }
  free(buf);
  return 0;
}

Line	Count	Source
1		#include "zip.h"
2		#include <stdint.h>
3		#include <stdlib.h>
4
5	3.33k	int LLVMFuzzerTestOneInput(const uint8_t *data, const size_t size) {
6		/* Discard inputs larger than 1MB. */
7	3.33k	static const size_t MaxSize = 1024 * 1024;
8	3.33k	if (size < 1 \|\| size > MaxSize) {
9	0	return 0;
10	0	}
11
12	3.33k	void *buf = NULL;
13	3.33k	size_t bufsize = 0;
14	3.33k	struct zip_t zip = zip_stream_open((const char )data, size, 0, 'r');
15	3.33k	if (NULL == zip) {
16	1.37k	goto end;
17	1.37k	}
18
19	1.96k	const ssize_t zip_entries_count = zip_entries_total(zip);
20
21	1.96k	if (zip_entries_count <= 0) {
22	54	goto end;
23	54	}
24
25	1.90k	if (0 != zip_entry_openbyindex(zip, 0)) {
26	65	goto end;
27	65	}
28
29	1.84k	zip_entry_read(zip, &buf, &bufsize);
30
31	3.33k	end:
32	3.33k	zip_entry_close(zip);
33	3.33k	if (NULL != zip) {
34	1.96k	zip_close(zip);
35	1.96k	}
36	3.33k	free(buf);
37	3.33k	return 0;
38	1.84k	}

Coverage Report

Created: 2025-11-11 06:58