Strncpy

copy a string, length limited (V47)

Copies one string into another, possibly truncating it to the target buffer size. Returns a pointer to the terminating NUL of the target string, or NULL if the target was truncated.

src

source string to be copied. If NULL, it is treated as if it were an empty string.

dst

buffer to write to, or NULL. In case the target buffer is NULL, NULL is returned immediately.

bufsize

size of the target buffer in bytes. If this is 0, then no data is copied and NULL is returned immediately.

end

pointer to the NUL byte of the target string, or NULL in case the target buffer was too short.

The curious return code allows easy chaining of multiple Strncpy() calls, i.e. Strncpy(src2,Strncpy(src1,buffer,size),size) concatenates the source strings src1 and src2 in the same buffer. Note that even if the target buffer is too small, a partial copy has been performed and the result is still NUL-terminated.

RawDoFmt()