mirror of https://github.com/ecmwf/eccodes.git
131 lines
3.4 KiB
C++
131 lines
3.4 KiB
C++
/*
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* (C) Copyright 2005- ECMWF.
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*
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* This software is licensed under the terms of the Apache Licence Version 2.0
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* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
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*
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* In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
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* virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
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*/
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#include "grib_api_internal.h"
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static const char* ENV_VAR = "ECCODES_GRIB_REPAIR_MAX_NUM_MESSAGES";
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static void usage(const char* name)
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{
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fprintf(stderr, "Usage: %s in out [bad]\n", name);
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exit(1);
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}
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#define SIZE 50 * 1024 * 1024
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char buffer[SIZE];
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int main(int argc, char** argv)
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{
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FILE *in, *out, *bad;
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char *cout, *cbad;
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size_t data_len = SIZE;
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unsigned long count = 0;
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unsigned long MAX_NUM_MESSAGES = 100*1000;
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unsigned char* data;
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char* sMaxNumMessages = NULL;
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if (argc != 3 && argc != 4)
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usage(argv[0]);
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in = fopen(argv[1], "r");
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if (!in) {
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perror(argv[1]);
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exit(1);
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}
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cout = argv[2];
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out = fopen(argv[2], "w");
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if (!out) {
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perror(argv[2]);
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exit(1);
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}
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if (argc == 4) {
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cbad = argv[3];
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bad = fopen(argv[3], "w");
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if (!bad) {
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perror(argv[3]);
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exit(1);
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}
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}
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else {
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bad = out;
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cbad = cout;
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}
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sMaxNumMessages = getenv(ENV_VAR);
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if (sMaxNumMessages) {
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long lmax = 0;
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if (string_to_long(sMaxNumMessages, &lmax, 1) == GRIB_SUCCESS) {
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MAX_NUM_MESSAGES = lmax;
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}
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}
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for (;;) {
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size_t len = SIZE;
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long ret = wmo_read_grib_from_file(in, buffer, &len);
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if (ret == GRIB_END_OF_FILE && len == 0)
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break;
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if (count > MAX_NUM_MESSAGES) {
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/* ECC-1265 */
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printf("\nExceeded the maximum number of messages. Limit = %lu.\n", MAX_NUM_MESSAGES);
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printf("This limit can be overridden by setting the environment variable %s.\n", ENV_VAR);
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break;
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}
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printf("GRIB %lu: size: %ld code: %ld (%s)\n", ++count, (long)len, ret, grib_get_error_message(ret));
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switch (ret) {
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case 0:
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if (fwrite(buffer, 1, len, out) != len) {
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perror(cout);
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exit(1);
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}
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break;
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case GRIB_WRONG_LENGTH:
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case GRIB_PREMATURE_END_OF_FILE:
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fseek(in, -4, SEEK_CUR);
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memset(buffer + len - 4, '7', 4); /* add in 7777 at end */
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len = data_len = SIZE;
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data = (unsigned char*)&buffer[0];
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ret = grib_read_any_from_memory(NULL, &data, &data_len, buffer, &len);
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printf(" -> GRIB %lu: size: %ld code: %ld (%s)\n", count, (long)len, ret, grib_get_error_message(ret));
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if (ret == 0) {
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if (fwrite(buffer, 1, len, bad) != len) {
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perror(cbad);
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exit(1);
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}
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}
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break;
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}
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}
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if (fclose(in)) {
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perror(argv[1]);
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exit(1);
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}
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if (fclose(out)) {
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perror(argv[2]);
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exit(1);
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}
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if (argc == 4) {
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if (fclose(bad)) {
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perror(argv[3]);
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exit(1);
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}
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}
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return 0;
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}
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