Problem Statement: All the jpgs are rendered correctly however I get the following error when I run the cs50check. Expecting an error code of 0 but received the following on standard error instead — /opt/sandbox50/bin/run.sh: line 31: 30927 Segmentation fault stdbuf --error=0 --output=0 "$@"
My code is below.
int main(int argc, char* argv[]) { char buffer[512]; int jpgcount = 0; //count of number of jpegs char j1[4] = {0xff, 0xd8, 0xff, 0xe0}; char j2[4] = {0xff, 0xd8, 0xff, 0xe1};
FILE* outptr;
//open card file
FILE* inptr = fopen("card.raw", "r");
if (inptr == NULL)
{
printf("Could not open %s.\n", "card.raw");
return 1;
}
//while loop to read through entire memory card while there is at least one item of size buffer remaning in file.
while (fread(buffer, sizeof(buffer), 1, inptr) ==1)
{
//check to see if signature of memory matches jpeg
if ((buffer[0]==j1[0] && buffer[1] == j1[1] && buffer[2] == j1[2] && buffer[3] == j1[3]) || (buffer[0]==j1[0] && buffer[1] == j1[1] && buffer[2] == j1[2] && buffer[3] == j2[3]))
{
//close last file if it has contents in it
if (outptr)
{
fclose(outptr);
}
//create file name for outfile
char filename[8];
jpgcount++;
sprintf(filename, "%03d.jpg", jpgcount);
//open output file
outptr = fopen(filename, "a");
//write 512 bytes into the filename.
fwrite(buffer, sizeof(buffer), 1, outptr);
}
else if (outptr!=NULL)
//if outprt is still open writhe the block.
{
fwrite(buffer, sizeof(buffer), 1, outptr);
}
}
// close files
fclose(inptr);
fclose(outptr);
printf("All done, we have recovered your files.\n");
return 0;
