// Assuming inFile has been used before.
char ch;
char buffer[1000];
size_t pos = 0;

ch = fgetc(inFile);
while (ch != EOF) {
    buffer[pos] = ch;
    if (ch == '\n') {
        buffer[pos] = '\0';
        // Reset the position for next usage
        pos = 0;

        // At this point, buffer contains the line that is terminated by '\0'
    }
    ch = fgetc(inFile);
}