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strlcpy.c: Update to OpenBSD v1.12, readability fixes

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Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
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Joachim Nilsson committed 2016-01-07 02:57:51 +01:00
1 parent 3371e42035
commit c5a36ff7bd
2 files changed
+19 -27
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ChangeLog.md
+1
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@@ -14,6 +14,7 @@ All notable changes to the project are documented in this file.
target. Needed by [Finit][]. target. Needed by [Finit][].
- Note, this release update `queue.h` to OpenBSD v1.43, which removes - Note, this release update `queue.h` to OpenBSD v1.43, which removes
support for circular queues (CIRCLEQ). support for circular queues (CIRCLEQ).
- Update `strlcpy.c` to OpenBSD v1.12, readability fixes.
[v1.2.0][] - 2015-11-23 [v1.2.0][] - 2015-11-23
strlcpy.c
+18 -27
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@@ -1,7 +1,7 @@
/* $OpenBSD: strlcpy.c,v 1.11 2006/05/05 15:27:38 millert Exp $ */ /* $OpenBSD: strlcpy.c,v 1.12 2015/01/15 03:54:12 millert Exp $ */
/* /*
* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> * Copyright (c) 1998, 2015 Todd C. Miller <Todd.Miller@courtesan.com>
* *
* Permission to use, copy, modify, and distribute this software for any * Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above * purpose with or without fee is hereby granted, provided that the above
@@ -21,41 +21,32 @@
#ifndef strlcpy #ifndef strlcpy
/* /*
* Copy src to string dst of size siz. At most siz-1 characters * Copy string src to buffer dst of size dsize. At most dsize-1
* will be copied. Always NUL terminates (unless siz == 0). * chars will be copied. Always NUL terminates (unless dsize == 0).
* Returns strlen(src); if retval >= siz, truncation occurred. * Returns strlen(src); if retval >= dsize, truncation occurred.
*/ */
size_t size_t
strlcpy(char *dst, const char *src, size_t siz) strlcpy(char *dst, const char *src, size_t dsize)
{ {
char *d = dst; const char *osrc = src;
const char *s = src; size_t nleft = dsize;
size_t n = siz;
/* Copy as many bytes as will fit */ /* Copy as many bytes as will fit. */
if (n != 0) { if (nleft != 0) {
while (--n != 0) { while (--nleft != 0) {
if ((*d++ = *s++) == '\0') if ((*dst++ = *src++) == '\0')
break; break;
} }
} }
/* Not enough room in dst, add NUL and traverse rest of src */ /* Not enough room in dst, add NUL and traverse rest of src. */
if (n == 0) { if (nleft == 0) {
if (siz != 0) if (dsize != 0)
*d = '\0'; /* NUL-terminate dst */ *dst = '\0'; /* NUL-terminate dst */
while (*s++) while (*src++)
; ;
} }
return(s - src - 1); /* count does not include NUL */ return(src - osrc - 1); /* count does not include NUL */
} }
#endif #endif
/**
* Local Variables:
* version-control: t
* c-file-style: "bsd"
* End:
*/