117 lines
2.7 KiB
C++
117 lines
2.7 KiB
C++
/*
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# Copyright 2019 The Chromium OS Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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################################################################################
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*/
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#include <base/gserrors.h>
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#include <psi/iapi.h>
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#include <limits.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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static const unsigned char *g_data;
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static size_t g_size;
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#define min(x, y) ((x) < (y) ? (x) : (y))
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static int gs_stdin(void *inst, char *buf, int len)
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{
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size_t to_copy = min(len, g_size);
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to_copy = min(INT_MAX, to_copy);
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memcpy(buf, g_data, to_copy);
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g_data += to_copy;
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g_size -= to_copy;
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return to_copy;
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}
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static int gs_stdnull(void *inst, const char *buf, int len)
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{
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/* Just discard everything. */
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return len;
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}
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static int gs_to_raster_fuzz(const unsigned char *buf, size_t size)
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{
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int ret;
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void *gs = NULL;
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/* Mostly stolen from cups-filters gstoraster. */
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char *args[] = {
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"gs",
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"-K1048576",
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"-r200x200",
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"-sBandListStorage=memory",
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"-dMaxBitmap=0",
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"-dBufferSpace=450k",
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"-dMediaPosition=1",
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"-dcupsColorSpace=1", /* RGB */
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"-dQUIET",
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"-dSAFER",
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"-dNOPAUSE",
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"-dBATCH",
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"-dNOINTERPOLATE",
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"-dNOMEDIAATTRS",
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"-sstdout=%%stderr",
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"-sOutputFile=/dev/null",
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"-sDEVICE=cups",
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"-_",
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};
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int argc = sizeof(args) / sizeof(args[0]);
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/* Stash buffers globally, for gs_stdin(). */
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g_data = buf;
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g_size = size;
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ret = gsapi_new_instance(&gs, NULL);
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if (ret < 0) {
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fprintf(stderr, "gsapi_new_instance: error %d\n", ret);
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return ret;
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}
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gsapi_set_stdio(gs, gs_stdin, gs_stdnull, gs_stdnull);
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ret = gsapi_set_arg_encoding(gs, GS_ARG_ENCODING_UTF8);
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if (ret < 0) {
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fprintf(stderr, "gsapi_set_arg_encoding: error %d\n", ret);
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gsapi_delete_instance(gs);
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return ret;
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}
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ret = gsapi_init_with_args(gs, argc, args);
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if (ret && ret != gs_error_Quit)
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/* Just keep going, to cleanup. */
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fprintf(stderr, "gsapi_init_with_args: error %d\n", ret);
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ret = gsapi_exit(gs);
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if (ret < 0 && ret != gs_error_Quit) {
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fprintf(stderr, "gsapi_exit: error %d\n", ret);
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return ret;
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}
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gsapi_delete_instance(gs);
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return 0;
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}
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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gs_to_raster_fuzz(data, size);
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return 0;
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}
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