question about fgets
- by user105033
Is this safe to do? (does fgets terminate the buffer with null) or should I be setting the 20th byte to null after the call to fgets before i call clean.
// strip new lines
void clean(char *data)
{
while (*data)
{
if (*data == '\n' || *data == '\r') *data = '\0';
data++;
}
}
// for this, assume that the file contains 1 line no longer than 19 bytes
// buffer is freed elsewhere
char *load_latest_info(char *file)
{
FILE *f;
char *buffer = (char*) malloc(20);
if (f = fopen(file, "r"))
if (fgets(buffer, 20, f))
{
clean(buffer);
return buffer;
}
free(buffer);
return NULL;
}
