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handle fread/fwrite errors more gracefully

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devinacker 2013-11-13 22:56:13 -05:00
parent fdce5a50b8
commit 4067da453e
2 changed files with 12 additions and 0 deletions
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4
exhal.c
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@ -58,6 +58,10 @@ int main (int argc, char **argv) {
// write the uncompressed data to the file
fseek(outfile, 0, SEEK_SET);
fwrite((const void*)unpacked, 1, outputsize, outfile);
if (ferror(outfile)) {
perror("Error writing output file");
exit(-1);
}
printf("Uncompressed size: %zu bytes\n", outputsize);
} else {

8
inhal.c
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@ -89,6 +89,10 @@ int main (int argc, char **argv) {
// read the file
fseek(infile, 0, SEEK_SET);
fread(unpacked, sizeof(uint8_t), inputsize, infile);
if (ferror(infile)) {
perror("Error reading input file");
exit(-1);
}
// compress the file
clock_t time = clock();
@ -99,6 +103,10 @@ int main (int argc, char **argv) {
// write the compressed data to the file
fseek(outfile, fileoffset, SEEK_SET);
fwrite((const void*)packed, 1, outputsize, outfile);
if (ferror(outfile)) {
perror("Error writing output file");
exit(-1);
}
printf("Compressed size: % zu bytes\n", outputsize);
printf("Compression ratio: %4.2f%%\n", 100 * (double)outputsize / inputsize);