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POneed an example on easyzlib (how to compress and decompress strings sent in the argv from command line Windows/Linux)
 

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  1. POneed an example on easyzlib (how to compress and decompress strings sent in the argv from command line Windows/Linux)
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    <p>OK now am half the way ,This is what i've done:</p> <pre><code>`int main(int argc,char* argv[]){ FILE *inputFile,*outputFile; unsigned char *inputBuffer, *outputBuffer; unsigned char *readMod = "r"; int result,x; long int outputSize; long int outputSizeun; size_t inputSize; if(argc &gt;= 3){ inputFile = fopen(argv[2],readMod ); // get length of input fseek(inputFile, 0, SEEK_END); inputSize = ftell(inputFile); fseek(inputFile, 0, SEEK_SET); //allocate the inputBufer size inputBuffer = (unsigned char *)malloc(inputSize); fread(inputBuffer, 1, inputSize, inputFile); outputSize = EZ_COMPRESSMAXDESTLENGTH(inputSize); //allocate the outputBuffer size outputBuffer = (unsigned char *)malloc(outputSize); //check for the -z(compression)/-u(decompression) option s if(strcmp("-z",argv[1])==0){ result = ezcompress(outputBuffer, &amp;outputSize, inputBuffer, inputSize); }else if(strcmp("-u",argv[1])==0){ result = ezuncompress(outputBuffer, &amp;outputSizeun, inputBuffer, inputSize); }else{ printf("Error : unknown operation \" %s \" type -z for compression or -u for decompression\n",argv[1]); } if (result == 0) { // if the output filename was not present it output the compressed data into a file named "compress" if(argv[3] == NULL){ argv[3] = "output";} //write the output outputFile = fopen(argv[3], "w"); fseek(outputFile, 0, SEEK_END); fseek(outputFile, 0, SEEK_SET); fwrite(outputBuffer, 1, outputSize, outputFile); fclose(outputFile); } else { // Something went wrong printf("%d ",result); } //now freeing buffers free(inputBuffer); free(outputBuffer); }else{ printf("insufficnt Arguments :-s"); return 1; } return 0; } </code></pre> <p><strong>why does this code returns -3 when i run **a.exe -u output</strong></p>
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    1. USMina Kolta
    1. USMina Kolta
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    1. COYou want to compress strings from argv, really? Or do you mean you want to treat argv's elements as names of files to compress, like gzip the program does?
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      1. POneed an example on easyzlib (how to compress and decompress strings sent in the argv from command line Windows/Linux)
      1. USJohn Zwinck
    2. COsure i need to pass a file name and get the compressed string , what if the string contains spaces ?? it'll be tens of arguments , sorry for the explanation
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      1. POneed an example on easyzlib (how to compress and decompress strings sent in the argv from command line Windows/Linux)
      1. USMina Kolta
    3. COWhat do you mean, "What if the string contains spaces?" Which string? The filename, or the data contained within that file? It would be helpful if you had a lot more clarity when you are trying to get some programming done.
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      1. POneed an example on easyzlib (how to compress and decompress strings sent in the argv from command line Windows/Linux)
      1. USJohn Zwinck
 

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