Strncpy like a boss(littlecena.com)

4 pointsby xfactor973vor 12 Jahren4 comments

https://www.littlecena.com/use-strncpy-like-a-boss/

4 comments

tlbvor 12 Jahren

Please use strlcpy [1] instead.

[1] http://www.unix.com/man-page/freebsd/3/strlcpy/

meowfacevor 12 Jahren

I feel like developers avoid use of much safer functions like this out of some misguided belief there'll be a performance impact, unfortunately. Premature optimization etc.

ahomescu1vor 12 Jahren

I imagine the biggest reason is actually portability. glibc [1] doesn't have strlcpy/strlcat, for example.

1 - http://lwn.net/Articles/507319/

nlyvor 12 Jahren

Putting aside the fact that using sizeof is risky in itself, i'd argue the default form should be

    strncpy (buffer, "abcd", sizeof(buffer));
    assert (!buffer[sizeof(buffer) - 1]);