On Aug 17, 2017 8:19 AM, "Gedare Bloom" <ged...@rtems.org> wrote:
On Wed, Aug 16, 2017 at 8:14 PM, Sichen Zhao <1473996...@qq.com> wrote: > --- > freebsd/lib/libc/string/strnstr.c | 67 ++++++++++++++++++++++++++++++ +++++++++ > 1 file changed, 67 insertions(+) > create mode 100644 freebsd/lib/libc/string/strnstr.c > > diff --git a/freebsd/lib/libc/string/strnstr.c b/freebsd/lib/libc/string/ strnstr.c > new file mode 100644 > index 0000000..247a2b5 > --- /dev/null > +++ b/freebsd/lib/libc/string/strnstr.c > @@ -0,0 +1,67 @@ > +#include <machine/rtems-bsd-user-space.h> > + > +/*- > + * Copyright (c) 2001 Mike Barcroft <m...@freebsd.org> > + * Copyright (c) 1990, 1993 > + * The Regents of the University of California. All rights reserved. > + * > + * This code is derived from software contributed to Berkeley by > + * Chris Torek. > + * > + * Redistribution and use in source and binary forms, with or without > + * modification, are permitted provided that the following conditions > + * are met: > + * 1. Redistributions of source code must retain the above copyright > + * notice, this list of conditions and the following disclaimer. > + * 2. Redistributions in binary form must reproduce the above copyright > + * notice, this list of conditions and the following disclaimer in the > + * documentation and/or other materials provided with the distribution. > + * 3. Neither the name of the University nor the names of its contributors > + * may be used to endorse or promote products derived from this software > + * without specific prior written permission. > + * > + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND > + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE > + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE > + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE > + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL > + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS > + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) > + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT > + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY > + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF > + * SUCH DAMAGE. > + */ > + > +#if defined(LIBC_SCCS) && !defined(lint) > +static char sccsid[] = "@(#)strstr.c 8.1 (Berkeley) 6/4/93"; > +#endif /* LIBC_SCCS and not lint */ > +#include <sys/cdefs.h> > +__FBSDID("$FreeBSD$"); > + > +#include <string.h> > + > +/* > + * Find the first occurrence of find in s, where the search is limited to the > + * first slen characters of s. > + */ > +char * > +strnstr(const char *s, const char *find, size_t slen) > +{ > + char c, sc; > + size_t len; > + > + if ((c = *find++) != '\0') { > + len = strlen(find); > + do { > + do { > + if (slen-- < 1 || (sc = *s++) == '\0') > + return (NULL); > + } while (sc != c); > + if (len > slen) > + return (NULL); > + } while (strncmp(s, find, len) != 0); > + s--; > + } > + return ((char *)s); > +} This can definitely be added in newlib. Aditya may be able to assist in the process? Agreed. This should be as widely available to RTEMS applications as possible. > -- > 2.7.4 > > _______________________________________________ > devel mailing list > devel@rtems.org > http://lists.rtems.org/mailman/listinfo/devel _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
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