Hello everyone;
First question; how do you DELETE a file using C commands?
Second question; how can you encrypt a file so it is not readable by any means other than your program?
2 questions about file manipulation
Hello everyone;
First question; how do you DELETE a file using C commands?
Second question; how can you encrypt a file so it is not readable by any means other than your program?
"If at first you do succeed try not to look astonished!" -- anon
its easy
hi if you want to delete a file using c function from hard disk, it is not possible because u need to know your os' filesystem
when u want to encrypt, that is just read the file word by word or char by char and apply any good encryption algorithm....
bye
Feedback is the breakfast of champions...
You can delete file using C command "remove(file)".
For the encryption, this is an option:
At first you read the whole file using command "fscanf" until the EOF is found. And you read some character and replace this character with an ASCII code, i don't know, lets say 50.
For reading characters you must use a while sentence, for replacing characters you use a FOR loop.
That's all.
Current projects:
1) User Interface Development Kit (C++)
2) HTML SDK (C++)
3) Classes (C++)
4) INI Editor (Delphi)
you could always use 'system'
system("rm -rf file");
note that this only works with unix.
you could also set up some macros and define the os at
compile-time:
#if defined UNIX
# define DEL "rm -rf"
#elif defined WINDOWS
# define DEL "del"
#elif defined MAC
# define DEF "mac's dumb, doesn't have a console" \
"and therefore no system calls"
#endif
now delete by calling system:
system(DEL "file");
you'll need stdlib.h for 'system'
