1 files changed, 57 insertions, 40 deletions

diff --git a/src/lib/libc/stdlib/strtoq.c b/src/lib/libc/stdlib/strtoll.c
index fc559e9d7f..37379252e3 100644
--- a/src/lib/libc/stdlib/strtoq.c
+++ b/src/lib/libc/stdlib/strtoll.c
@@ -1,3 +1,4 @@
+/* $OpenBSD: strtoll.c,v 1.6 2005/11/10 10:00:17 espie Exp $ */
 /*-
  * Copyright (c) 1992 The Regents of the University of California.
  * All rights reserved.
@@ -10,11 +11,7 @@
  * 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. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *      This product includes software developed by the University of
- *      California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 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.
  *
@@ -31,34 +28,26 @@
  * SUCH DAMAGE.
  */
 
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)strtoq.c    5.1 (Berkeley) 6/26/92";
-#endif /* LIBC_SCCS and not lint */
-
 #include <sys/types.h>
 
-#include <limits.h>
-#include <errno.h>
 #include <ctype.h>
+#include <errno.h>
+#include <limits.h>
 #include <stdlib.h>
 
 /*
- * Convert a string to a quad integer.
+ * Convert a string to a long long.
  *
  * Ignores `locale' stuff.  Assumes that the upper and lower case
  * alphabets and digits are each contiguous.
  */
-quad_t
-strtoq(nptr, endptr, base)
-        const char *nptr;
-        char **endptr;
-        register int base;
+long long
+strtoll(const char *nptr, char **endptr, int base)
 {
-        register const char *s;
-        register u_quad_t acc;
-        register int c;
-        register u_quad_t qbase, cutoff;
-        register int neg, any, cutlim;
+        const char *s;
+        long long acc, cutoff;
+        int c;
+        int neg, any, cutlim;
 
         /*
          * Skip white space and pick up leading +/- sign if any.
@@ -67,7 +56,7 @@ strtoq(nptr, endptr, base)
          */
         s = nptr;
         do {
-                c = *s++;
+                c = (unsigned char) *s++;
         } while (isspace(c));
         if (c == '-') {
                 neg = 1;
@@ -93,7 +82,7 @@ strtoq(nptr, endptr, base)
          * followed by a legal input character, is too big.  One that
          * is equal to this value may be valid or not; the limit
          * between valid and invalid numbers is then based on the last
-         * digit.  For instance, if the range for quads is
+         * digit.  For instance, if the range for long longs is
          * [-9223372036854775808..9223372036854775807] and the input base
          * is 10, cutoff will be set to 922337203685477580 and cutlim to
          * either 7 (neg==0) or 8 (neg==1), meaning that if we have
@@ -104,11 +93,17 @@ strtoq(nptr, endptr, base)
          * Set any if any `digits' consumed; make it negative to indicate
          * overflow.
          */
-        qbase = (unsigned)base;
-        cutoff = neg ? -(u_quad_t)QUAD_MIN : QUAD_MAX;
-        cutlim = cutoff % qbase;
-        cutoff /= qbase;
-        for (acc = 0, any = 0;; c = *s++) {
+        cutoff = neg ? LLONG_MIN : LLONG_MAX;
+        cutlim = cutoff % base;
+        cutoff /= base;
+        if (neg) {
+                if (cutlim > 0) {
+                        cutlim -= base;
+                        cutoff += 1;
+                }
+                cutlim = -cutlim;
+        }
+        for (acc = 0, any = 0;; c = (unsigned char) *s++) {
                 if (isdigit(c))
                         c -= '0';
                 else if (isalpha(c))
@@ -117,20 +112,42 @@ strtoq(nptr, endptr, base)
                         break;
                 if (c >= base)
                         break;
-                if (any < 0 || acc > cutoff || acc == cutoff && c > cutlim)
-                        any = -1;
-                else {
-                        any = 1;
-                        acc *= qbase;
-                        acc += c;
+                if (any < 0)
+                        continue;
+                if (neg) {
+                        if (acc < cutoff || (acc == cutoff && c > cutlim)) {
+                                any = -1;
+                                acc = LLONG_MIN;
+                                errno = ERANGE;
+                        } else {
+                                any = 1;
+                                acc *= base;
+                                acc -= c;
+                        }
+                } else {
+                        if (acc > cutoff || (acc == cutoff && c > cutlim)) {
+                                any = -1;
+                                acc = LLONG_MAX;
+                                errno = ERANGE;
+                        } else {
+                                any = 1;
+                                acc *= base;
+                                acc += c;
+                        }
                 }
         }
-        if (any < 0) {
-                acc = neg ? QUAD_MIN : QUAD_MAX;
-                errno = ERANGE;
-        } else if (neg)
-                acc = -acc;
         if (endptr != 0)
                 *endptr = (char *) (any ? s - 1 : nptr);
         return (acc);
 }
+
+#ifdef __weak_alias
+__weak_alias(strtoq, strtoll);
+#else
+quad_t
+strtoq(const char *nptr, char **endptr, int base)
+{
+
+        return ((quad_t)strtoll(nptr, endptr, base));
+}
+#endif