File being read, but not saved - c

Question

I am currently writing a program to read a file and then save the information read to a new file. However when writing the second file no data is saved.
I am using a struct to help break up the text file that I want to use
struct file{
int source;
int destination;
int type;
int port;
char data[50];
};
After reading the file I have created a function to break up the data and print it to the screen
int parseFile(int countData, struct file *storedData)
{
FILE *in_File;
char buff[1000];
while(fgets(buff, 1000, in_File)!=NULL)
{
printf("%s", buff);
storedData[countData].source = atoi(strtok(buff, ":"));
storedData[countData].destination = atoi(strtok(0, ":"));
storedData[countData].type = atoi(strtok(0, ":"));
storedData[countData].port = atoi(strtok(0, ":"));
strcpy(storedData[countData].data, strtok(0, ":\n") );
}
}
and finally I created a function to save the file
void saveFile(int countData, struct file *storedData)
{
FILE *in_File;
char fileLocation[40];
int i = 0;
printf("\nEnter a File Name to save:");
scanf("%s", fileLocation);
if ((in_File = fopen(fileLocation, "w")) == NULL){
puts(" \n Could not point to the file.");
}else{
for(i=0;i<countData;i++)
{
fprintf(in_File, "%04d:%04d:%04d:%04d:%s \n",
storedData[i].source,
storedData[i].destination,
storedData[i].type,
storedData[i].port,
storedData[i].data );
}
}
fclose(in_File);
}
In the main function I used malloc to allocate the size of the struct
int main()
{
struct file *storedData;
storedData = malloc(sizeof(struct file));
int countData = 0;
banner();
readFile(countData, storedData);
parseFile(countData, storedData);
saveFile(countData, storedData);
return 0;
}
When getting the data and running it through my parseFile function each line is written out to me line by line
Example of data output:
0001:0002:0003:0021:CLS
0003:0004:0002:0180:100000000000000000030
0006:0003:0002:0041:100000000000000000019
0006:0002:0002:0060:100000000000000000020
However when saved to a file none of this output is stored and I was wondering what I could do to fix it
EDIT:
Here is the readFile function:
void readFile(int countData, struct file *storedData)
{
FILE *in_File;
char fileLocation[40];
printf("\nEnter file name: \n");
scanf("%s", fileLocation);
in_File = fopen(fileLocation, "r");
if(!in_File)
{
printf("\nError!\n");
}
}

Answer 1

storedData = malloc(sizeof(struct file));
Allocates enough for ONE file record.
Your routine parseFile() would write over that record repeatedly, but as it never increments countData it doesn't write any -- although even if it did, the parent routines would not receive your updated countData, as you would have had to pass an int * of &countData to let the parseFile() routine increment it.
Since for(i=0;i<countData;i++) is present, you never even read a single line, since 0 < 0 is false.
If you make that change, as soon as you hit the second record, you will overwrite memory and coredump because you only allocated one record worth of space in main()
Also in parseFile(), you have to open the file before reading it! Something like:
in_File = fopen(inputFileName, "r");
[edit] I see you updated with readFile() -- it needs to return the open FILE * for use by parseFile, and you will need to pass that FILE * to parseFile to use.