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author | 2002-11-21 20:45:05 +0000 | |
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committer | 2002-11-21 20:45:05 +0000 | |
commit | b418cc483f2c538a9dd6353a9d96390b80bb70cb (patch) | |
tree | d4cc57fe6ee5d13c58974e747235433942f3b53a /lib/libc/string/strerror_r.c | |
parent | add prototype for strerror_r (diff) | |
download | wireguard-openbsd-b418cc483f2c538a9dd6353a9d96390b80bb70cb.tar.xz wireguard-openbsd-b418cc483f2c538a9dd6353a9d96390b80bb70cb.zip |
Add strerror_r and functions versions of getchar_unlocked and
putchar_unlocked. Crank the minor on related libs. OK fgs@, deraadt@
Diffstat (limited to 'lib/libc/string/strerror_r.c')
-rw-r--r-- | lib/libc/string/strerror_r.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/lib/libc/string/strerror_r.c b/lib/libc/string/strerror_r.c new file mode 100644 index 00000000000..aab6db5303c --- /dev/null +++ b/lib/libc/string/strerror_r.c @@ -0,0 +1,30 @@ +/* $OpenBSD: strerror_r.c,v 1.1 2002/11/21 20:45:05 marc Exp $ */ +/* Public Domain <marc@snafu.org> */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char *rcsid = "$OpenBSD: strerror_r.c,v 1.1 2002/11/21 20:45:05 marc Exp $"; +#endif /* LIBC_SCCS and not lint */ + +#include <errno.h> +#include <limits.h> +#include <string.h> + +extern char *__strerror(int, char *); + +int +strerror_r(int errnum, char *strerrbuf, size_t buflen) +{ + int save_errno; + int ret_errno; + char buf[NL_TEXTMAX]; + + save_errno = errno; + errno = 0; + __strerror(errnum, buf); + if (strlcpy(strerrbuf, buf, buflen) >= buflen) + errno = ERANGE; + ret_errno = errno; + errno = save_errno; + + return (ret_errno); +} |