diff options
Diffstat (limited to 'lib/libc/string/strerror_r.c')
| -rw-r--r-- | lib/libc/string/strerror_r.c | 110 |
1 files changed, 100 insertions, 10 deletions
diff --git a/lib/libc/string/strerror_r.c b/lib/libc/string/strerror_r.c index aab6db5303c..db264bcf505 100644 --- a/lib/libc/string/strerror_r.c +++ b/lib/libc/string/strerror_r.c @@ -1,30 +1,120 @@ -/* $OpenBSD: strerror_r.c,v 1.1 2002/11/21 20:45:05 marc Exp $ */ +/* $OpenBSD: strerror_r.c,v 1.2 2004/05/03 05:07:34 espie 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 $"; +static char *rcsid = "$OpenBSD: strerror_r.c,v 1.2 2004/05/03 05:07:34 espie Exp $"; #endif /* LIBC_SCCS and not lint */ +#ifdef NLS +#define catclose _catclose +#define catgets _catgets +#define catopen _catopen +#include <nl_types.h> +#endif + +#define sys_errlist _sys_errlist +#define sys_nerr _sys_nerr + #include <errno.h> #include <limits.h> #include <string.h> -extern char *__strerror(int, char *); +static size_t +__digits10(unsigned int num) +{ + size_t i = 0; + + do { + num /= 10; + i++; + } while (num != 0); + + return i; +} + +static void +__itoa(int num, char *buffer, size_t start, size_t end) +{ + size_t pos; + unsigned int a; + int neg; + + if (num < 0) { + a = -num; + neg = 1; + } + else { + a = num; + neg = 0; + } + + pos = start + __digits10(a); + if (neg) + pos++; + + if (pos < end) + buffer[pos] = '\0'; + else { + if (end) + buffer[--end] = '\0'; /* XXX */ + } + pos--; + do { + + if (pos < end) + buffer[pos] = (a % 10) + '0'; + pos--; + a /= 10; + } while (a != 0); + if (neg) + if (pos < end) + buffer[pos] = '-'; +} + + +#define UPREFIX "Unknown error: " int strerror_r(int errnum, char *strerrbuf, size_t buflen) { int save_errno; int ret_errno; - char buf[NL_TEXTMAX]; + size_t len; +#ifdef NLS + nl_catd catd; +#endif save_errno = errno; - errno = 0; - __strerror(errnum, buf); - if (strlcpy(strerrbuf, buf, buflen) >= buflen) - errno = ERANGE; - ret_errno = errno; - errno = save_errno; + ret_errno = 0; + +#ifdef NLS + catd = catopen("libc", 0); +#endif + + if (errnum >= 0 && errnum < sys_nerr) { +#ifdef NLS + len = strlcpy(strerrbuf, catgets(catd, 1, errnum, + (char *)sys_errlist[errnum]), buflen); +#else + len = strlcpy(strerrbuf, sys_errlist[errnum], buflen); +#endif + if (len >= buflen) + ret_errno = ERANGE; + } else { +#ifdef NLS + len = strlcpy(strerrbuf, catgets(catd, 1, 0xffff, UPREFIX), + buflen); +#else + len = strlcpy(strerrbuf, UPREFIX, buflen); +#endif + __itoa(errnum, strerrbuf, len, buflen); + ret_errno = EINVAL; + } + +#ifdef NLS + catclose(catd); +#endif + errno = ret_errno ? ret_errno : save_errno; return (ret_errno); } |