mirror of
https://github.com/golang/go
synced 2024-11-19 23:24:45 -07:00
7590e28d24
Built after adding -Wconversion to the list of compiler arguments used when building. I believe these are all OK assuming we will not change the API. There is no effort to detect overflow due to very long strings. R=golang-dev, dave, rsc, r CC=golang-dev https://golang.org/cl/10195044
44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
/*
|
|
Inferno lib9/strecpy.c
|
|
http://code.google.com/p/inferno-os/source/browse/lib9/strecpy.c
|
|
|
|
Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
|
|
Revisions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com). All rights reserved.
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
*/
|
|
|
|
#include <u.h>
|
|
#include <libc.h>
|
|
|
|
char*
|
|
strecpy(char *to, char *e, char *from)
|
|
{
|
|
if(to >= e)
|
|
return to;
|
|
to = memccpy(to, from, '\0', (size_t)(e - to));
|
|
if(to == nil){
|
|
to = e - 1;
|
|
*to = '\0';
|
|
}else{
|
|
to--;
|
|
}
|
|
return to;
|
|
}
|