Open a file in c as securely as possible
c, error-handling, file, fopen
Solution
No other check needed.
I always also make it a practice of calling `fclose`, however, when done with the FILE*.
Problem
I would write a program as follows ``` int main () { FILE *fp = fopen("test.txt", "r") if (fp == NULL) { printf("Sorry, file doesn't exist."); return 0; } return 0; } ``` Is there any other check that I would need to make sure before or after opening a file? What if the opening of a file can damage the system(virus)? is there any check for that? What if the file is not a .txt file, user just renamed mp3 file to a txt file?