From 8a9208612eec8ddae4c418485d848ecfa0613699 Mon Sep 17 00:00:00 2001 From: Anton Kling Date: Mon, 30 Oct 2023 22:12:14 +0100 Subject: Meta: Move kernel and userland to their own folders. This is to allow both the kernel and the userland to share certain header files and to make the folder structure a bit more clear. --- kernel/libc/string/strlcpy.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 kernel/libc/string/strlcpy.c (limited to 'kernel/libc/string/strlcpy.c') diff --git a/kernel/libc/string/strlcpy.c b/kernel/libc/string/strlcpy.c new file mode 100644 index 0000000..43d0e58 --- /dev/null +++ b/kernel/libc/string/strlcpy.c @@ -0,0 +1,21 @@ +#include +#include + +// Copy string src to buffer dst of size dsize. At most dsize-1 +// chars will be copied. Always NUL terminates (unless dsize == 0). +// Returns strlen(src); if retval >= dsize, truncation occurred. +size_t strlcpy(char *dst, const char *src, size_t dsize) { + size_t n = dsize; + const char *osrc = src; + for (; n; n--) { + if ((*dst++ = *src++) == '\0') + break; + } + if (n == 0) { + if (dsize != 0) + *dst = '\0'; /* NUL-terminate dst */ + while (*src++) + ; + } + return src - osrc - 1; +} -- cgit v1.2.3