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Added support for continuation of file compression and decompression if input files are missing. Should more closely match gzip/bzip2/xz and so forth. Also removed a debug print accidentally left in.

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This commit is contained in:
Kyle J Harper 2015-04-12 18:41:55 -05:00
parent 0169502b49
commit 7f2f1fcd55
2 changed files with 27 additions and 6 deletions
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8
programs/lz4cli.c
View File

@ -265,7 +265,8 @@ int main(int argc, char** argv)
forceStdout=0,
forceCompress=0,
main_pause=0,
multiple_inputs=0;
multiple_inputs=0,
multiple_rv=0;
const char* input_filename=0;
const char* output_filename=0;
char* dynNameSpace=0;
@ -518,7 +519,7 @@ int main(int argc, char** argv)
if (decode)
{
if (multiple_inputs)
LZ4IO_decompressMultipleFilenames(inFileNames, ifnIdx, LZ4_EXTENSION);
multiple_rv = LZ4IO_decompressMultipleFilenames(inFileNames, ifnIdx, LZ4_EXTENSION);
else
DEFAULT_DECOMPRESSOR(input_filename, output_filename);
}
@ -533,7 +534,7 @@ int main(int argc, char** argv)
else
{
if (multiple_inputs)
LZ4IO_compressMultipleFilenames(inFileNames, ifnIdx, LZ4_EXTENSION, cLevel);
multiple_rv = LZ4IO_compressMultipleFilenames(inFileNames, ifnIdx, LZ4_EXTENSION, cLevel);
else
DEFAULT_COMPRESSOR(input_filename, output_filename, cLevel);
}
@ -542,5 +543,6 @@ int main(int argc, char** argv)
if (main_pause) waitEnter();
free(dynNameSpace);
free((void*)inFileNames);
if (multiple_rv != 0) return multiple_rv;
return 0;
}

25
programs/lz4io.c
View File

@ -501,12 +501,21 @@ int LZ4IO_compressFilename(const char* input_filename, const char* output_filena
int LZ4IO_compressMultipleFilenames(const char** inFileNamesTable, int ifntSize, const char* suffix, int compressionlevel)
{
int i;
int missing_files = 0;
FILE *ifp;
char* outFileName = (char*)malloc(FNSPACE);
size_t ofnSize = FNSPACE;
const size_t suffixSize = strlen(suffix);
for (i=0; i<ifntSize; i++)
{
ifp = fopen(inFileNamesTable[i], "r");
if (ifp == NULL) {
DISPLAYLEVEL(2, "Unable to access file for processing: %s\n", inFileNamesTable[i]);
missing_files++;
continue;
}
fclose(ifp);
size_t ifnSize = strlen(inFileNamesTable[i]);
if (ofnSize <= ifnSize+suffixSize+1) { free(outFileName); ofnSize = ifnSize + 20; outFileName = (char*)malloc(ofnSize); }
strcpy(outFileName, inFileNamesTable[i]);
@ -514,6 +523,7 @@ int LZ4IO_compressMultipleFilenames(const char** inFileNamesTable, int ifntSize,
LZ4IO_compressFilename(inFileNamesTable[i], outFileName, compressionlevel);
}
free(outFileName);
if (missing_files > 0) return 1;
return 0;
}
@ -521,6 +531,8 @@ int LZ4IO_decompressMultipleFilenames(const char** inFileNamesTable, int ifntSiz
{
int i;
int skipped_files = 0;
int missing_files = 0;
FILE *ifp;
char* outFileName = (char*)malloc(FNSPACE);
size_t ofnSize = FNSPACE;
size_t suffixSize = strlen(suffix);
@ -528,13 +540,19 @@ int LZ4IO_decompressMultipleFilenames(const char** inFileNamesTable, int ifntSiz
for (i=0; i<ifntSize; i++)
{
ifp = fopen(inFileNamesTable[i], "r");
if (ifp == NULL) {
DISPLAYLEVEL(2, "Unable to access file for processing: %s\n", inFileNamesTable[i]);
missing_files++;
continue;
}
fclose(ifp);
size_t ifnSize = strlen(inFileNamesTable[i]);
strcpy(ifnSuffix, inFileNamesTable[i] + ifnSize - suffixSize);
DISPLAYLEVEL(2, "ifnSuffix is %s\n", ifnSuffix);
if (ofnSize <= ifnSize-suffixSize+1) { free(outFileName); ofnSize = ifnSize + 20; outFileName = (char*)malloc(ofnSize); }
if (ifnSize <= suffixSize || strcmp(ifnSuffix, suffix) != 0) {
DISPLAYLEVEL(2, "File extension doesn't match expected LZ4_EXTENSION (%4s); will not process file: %s\n", suffix, inFileNamesTable[i]);
skipped_files = 1;
skipped_files++;
continue;
}
memcpy(outFileName, inFileNamesTable[i], ifnSize - suffixSize);
@ -542,7 +560,8 @@ int LZ4IO_decompressMultipleFilenames(const char** inFileNamesTable, int ifntSiz
LZ4IO_decompressFilename(inFileNamesTable[i], outFileName);
}
free(outFileName);
if (skipped_files) return 1;
if (skipped_files > 0) return 1;
if (missing_files > 0) return 1;
return 0;
}