Merge common functionality of __strsignal and strerror_r.

ok jaredy@ miod@

src/lib/libc/string/Makefile.inc

@@ -1,11 +1,11 @@
-#	$OpenBSD: Makefile.inc,v 1.16 2005/04/16 12:26:12 jmc Exp $
+#	$OpenBSD: Makefile.inc,v 1.17 2005/05/26 12:56:01 otto Exp $
 
 # string sources
 .PATH: ${LIBCSRCDIR}/arch/${MACHINE_ARCH}/string ${LIBCSRCDIR}/string
 
 SRCS+=	bm.c memccpy.c strcasecmp.c strcasestr.c strcoll.c strdup.c \
 	strerror.c strerror_r.c strlcat.c strmode.c strsignal.c strtok.c \
-	strxfrm.c __strsignal.c \
+	strxfrm.c \
 	wcscat.c wcschr.c wcscmp.c wcscpy.c wcscspn.c wcslcat.c wcslcpy.c \
 	wcslen.c wcsncat.c wcsncmp.c wcsncpy.c wcspbrk.c wcsrchr.c wcsspn.c \
 	wcsstr.c wcstok.c wcswcs.c wmemchr.c wmemcmp.c wmemcpy.c \

src/lib/libc/string/__strsignal.c

@@ -1,99 +0,0 @@
-/*
- * Copyright (c) 1988 Regents of the University of California.
- * All rights reserved.
- *
- * 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 *rcsid = "$OpenBSD: __strsignal.c,v 1.10 2005/05/01 19:39:02 tom 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_siglist	_sys_siglist
-
-#include <stdio.h>
-#include <limits.h>
-#include <signal.h>
-#include <string.h>
-
-static char *
-itoa(char *buffer, size_t buffer_size, unsigned int num)
-{
-	char *p = buffer + buffer_size;
-
-	*--p = '\0';
-	while (num >= 10 && p > buffer + 1) {
-		*--p = (num % 10) + '0';
-		num /= 10;
-	}
-	/* num < 10 || p == buffer + 1 */
-	*--p = (num % 10) + '0';
-	return p;
-}
-
-char *
-__strsignal(int num, char *buf)
-{
-#define	UPREFIX	"Unknown signal: "
-	unsigned int signum;
-
-#ifdef NLS
-	nl_catd catd ;
-	catd = catopen("libc", 0);
-#endif
-
-	signum = num;				/* convert to unsigned */
-	if (signum < NSIG) {
-#ifdef NLS
-		strlcpy(buf, catgets(catd, 2, signum,
-		    (char *)sys_siglist[signum]), NL_TEXTMAX);
-#else
-		return((char *)sys_siglist[signum]);
-#endif
-	} else {
-#define MAXINTDIGS 11
-		char str[MAXINTDIGS];
-
-#ifdef NLS
-		strlcpy(buf, catgets(catd, 1, 0xffff, UPREFIX), NL_TEXTMAX);
-#else
-		strlcpy(buf, UPREFIX, NL_TEXTMAX);
-#endif
-		strlcat(buf, itoa(str, sizeof(str), signum), NL_TEXTMAX);
-	}
-
-#ifdef NLS
-	catclose(catd);
-#endif
-
-	return buf;
-}

src/lib/libc/string/strerror_r.c

@@ -1,8 +1,8 @@
-/* $OpenBSD: strerror_r.c,v 1.4 2005/05/08 06:25:44 otto Exp $ */
+/* $OpenBSD: strerror_r.c,v 1.5 2005/05/26 12:56:01 otto Exp $ */
 /* Public Domain <marc@snafu.org> */
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static char *rcsid = "$OpenBSD: strerror_r.c,v 1.4 2005/05/08 06:25:44 otto Exp $";
+static char *rcsid = "$OpenBSD: strerror_r.c,v 1.5 2005/05/26 12:56:01 otto Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #ifdef NLS
@@ -14,9 +14,11 @@ static char *rcsid = "$OpenBSD: strerror_r.c,v 1.4 2005/05/08 06:25:44 otto Exp
 
 #define sys_errlist	_sys_errlist
 #define sys_nerr	_sys_nerr
+#define sys_siglist	_sys_siglist
 
 #include <errno.h>
 #include <limits.h>
+#include <signal.h>
 #include <string.h>
 
 static size_t
@@ -33,13 +35,13 @@ __digits10(unsigned int num)
 }
 
 static int
-__itoa(int num, char *buffer, size_t start, size_t end)
+__itoa(int num, int sign, char *buffer, size_t start, size_t end)
 {
 	size_t pos;
 	unsigned int a;
 	int neg;
 
-	if (num < 0) {
+	if (sign && num < 0) {
 		a = -num;
 		neg = 1;
 	}
@@ -68,47 +70,39 @@ __itoa(int num, char *buffer, size_t start, size_t end)
 }
 
 
-#define	UPREFIX	"Unknown error: "
-
-int
-strerror_r(int errnum, char *strerrbuf, size_t buflen)
+static int
+__num2string(int num, int sign, int setid, char *buf, size_t buflen,
+    char * list[], size_t max, const char *def)
 {
-	int save_errno;
-	int ret_errno;
+	int ret = 0;
 	size_t len;
-#ifdef NLS
-	nl_catd catd;
-#endif
-
-	save_errno = errno;
-	ret_errno = 0;
 
 #ifdef NLS
+	nl_catd catd;
 	catd = catopen("libc", 0);
 #endif
 
-	if (errnum >= 0 && errnum < sys_nerr) {
+	if (0 <= num && num < max) {
 #ifdef NLS
-		len = strlcpy(strerrbuf, catgets(catd, 1, errnum,
-		    (char *)sys_errlist[errnum]), buflen);
+		len = strlcpy(buf, catgets(catd, setid, num, list[num]),
+		    buflen);
 #else
-		len = strlcpy(strerrbuf, sys_errlist[errnum], buflen);
+		len = strlcpy(buf, def, buflen);
 #endif
 		if (len >= buflen)
-			ret_errno = ERANGE;
+			ret = ERANGE;
 	} else {
 #ifdef NLS
-		len = strlcpy(strerrbuf, catgets(catd, 1, 0xffff, UPREFIX), 
-		    buflen);
+		len = strlcpy(buf, catgets(catd, setid, 0xffff, def), buflen);
 #else
-		len = strlcpy(strerrbuf, UPREFIX, buflen);
+		len = strlcpy(buf, def, buflen);
 #endif
 		if (len >= buflen)
-			ret_errno = ERANGE;
+			ret = ERANGE;
 		else {
-			ret_errno = __itoa(errnum, strerrbuf, len, buflen);
-			if (ret_errno == 0)
-				ret_errno = EINVAL;
+			ret = __itoa(num, sign, buf, len, buflen);
+			if (ret == 0)
+				ret = EINVAL;
 		}
 	}
 
@@ -116,6 +110,32 @@ strerror_r(int errnum, char *strerrbuf, size_t buflen)
 	catclose(catd);
 #endif
 
+	return ret;
+}
+
+#define	UPREFIX	"Unknown error: "
+
+int
+strerror_r(int errnum, char *strerrbuf, size_t buflen)
+{
+	int save_errno;
+	int ret_errno;
+
+	save_errno = errno;
+
+	ret_errno = __num2string(errnum, 1, 1, strerrbuf, buflen,
+	    sys_errlist, sys_nerr, UPREFIX);
+
 	errno = ret_errno ? ret_errno : save_errno;
 	return (ret_errno);
 }
+
+#define USIGPREFIX "Unknown signal: "
+
+char *
+__strsignal(int num, char *buf)
+{
+	__num2string(num, 0, 2, buf, NL_TEXTMAX, (char **)sys_siglist, NSIG,
+	    USIGPREFIX);
+	return buf;
+}