From: Jim Jagielski Date: Tue, 18 Jun 2002 00:34:35 +0000 (+0000) Subject: Add in our ap_strtol() implementation X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=90def92180d0f34de4392ae9a78f094d18a25b19;p=thirdparty%2Fapache%2Fhttpd.git Add in our ap_strtol() implementation PR: Obtained from: Submitted by: Reviewed by: git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@95745 13f79535-47bb-0310-9956-ffa450edef68 --- diff --git a/src/ap/Makefile.tmpl b/src/ap/Makefile.tmpl index 9606f2d3305..a7b965a45aa 100644 --- a/src/ap/Makefile.tmpl +++ b/src/ap/Makefile.tmpl @@ -6,7 +6,8 @@ LDFLAGS=$(LDFLAGS1) $(EXTRA_LDFLAGS) LIB=libap.a OBJS=ap_cpystrn.o ap_execve.o ap_fnmatch.o ap_getpass.o ap_md5c.o ap_signal.o \ - ap_slack.o ap_snprintf.o ap_sha1.o ap_checkpass.o ap_base64.o ap_ebcdic.o + ap_slack.o ap_snprintf.o ap_sha1.o ap_checkpass.o ap_base64.o ap_ebcdic.o \ + ap_strtol.o .c.o: $(CC) -c $(INCLUDES) $(CFLAGS) $< @@ -76,3 +77,8 @@ ap_snprintf.o: ap_snprintf.c $(INCDIR)/httpd.h $(INCDIR)/ap_config.h \ $(OSDIR)/os-inline.c $(INCDIR)/ap_ctype.h $(INCDIR)/hsregex.h \ $(INCDIR)/ap_alloc.h $(INCDIR)/buff.h $(INCDIR)/ap.h \ $(INCDIR)/util_uri.h +ap_strtol.o: ap_strtol.c $(INCDIR)/httpd.h $(INCDIR)/ap_config.h \ + $(INCDIR)/ap_mmn.h $(INCDIR)/ap_config_auto.h $(OSDIR)/os.h \ + $(OSDIR)/os-inline.c $(INCDIR)/ap_ctype.h $(INCDIR)/hsregex.h \ + $(INCDIR)/ap_alloc.h $(INCDIR)/buff.h $(INCDIR)/ap.h \ + $(INCDIR)/util_uri.h diff --git a/src/ap/ap_strtol.c b/src/ap/ap_strtol.c new file mode 100644 index 00000000000..9d5b2a4d999 --- /dev/null +++ b/src/ap/ap_strtol.c @@ -0,0 +1,197 @@ +/* ==================================================================== + * The Apache Software License, Version 1.1 + * + * Copyright (c) 2000-2002 The Apache Software Foundation. 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. The end-user documentation included with the redistribution, + * if any, must include the following acknowledgment: + * "This product includes software developed by the + * Apache Software Foundation (http://www.apache.org/)." + * Alternately, this acknowledgment may appear in the software itself, + * if and wherever such third-party acknowledgments normally appear. + * + * 4. The names "Apache" and "Apache Software Foundation" must + * not be used to endorse or promote products derived from this + * software without prior written permission. For written + * permission, please contact apache@apache.org. + * + * 5. Products derived from this software may not be called "Apache", + * nor may "Apache" appear in their name, without prior written + * permission of the Apache Software Foundation. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR + * ITS 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. + * ==================================================================== + * + * This software consists of voluntary contributions made by many + * individuals on behalf of the Apache Software Foundation. For more + * information on the Apache Software Foundation, please see + * . + * + * Portions of this software are based upon public domain software + * originally written at the National Center for Supercomputing Applications, + * University of Illinois, Urbana-Champaign. + */ +/*- + * Copyright (c) 1990, 1993 + * The 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. 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 + * 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. + */ + + +#include +#include +#include +#include + + +/* + * Convert a string to a long integer. + * + * Assumes that the upper and lower case + * alphabets and digits are each contiguous. + */ +long +ap_strtol(nptr, endptr, base) + const char *nptr; + char **endptr; + int base; +{ + const char *s; + unsigned long acc; + char c; + unsigned long cutoff; + int neg, any, cutlim; + + /* + * Skip white space and pick up leading +/- sign if any. + * If base is 0, allow 0x for hex and 0 for octal, else + * assume decimal; if base is already 16, allow 0x. + */ + s = nptr; + do { + c = *s++; + } while (ap_isspace((unsigned char)c)); + if (c == '-') { + neg = 1; + c = *s++; + } else { + neg = 0; + if (c == '+') + c = *s++; + } + if ((base == 0 || base == 16) && + c == '0' && (*s == 'x' || *s == 'X')) { + c = s[1]; + s += 2; + base = 16; + } + if (base == 0) + base = c == '0' ? 8 : 10; + acc = any = 0; + if (base < 2 || base > 36) + goto noconv; + + /* + * Compute the cutoff value between legal numbers and illegal + * numbers. That is the largest legal value, divided by the + * base. An input number that is greater than this value, if + * 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 longs is + * [-2147483648..2147483647] and the input base is 10, + * cutoff will be set to 214748364 and cutlim to either + * 7 (neg==0) or 8 (neg==1), meaning that if we have accumulated + * a value > 214748364, or equal but the next digit is > 7 (or 8), + * the number is too big, and we will return a range error. + * + * Set 'any' if any `digits' consumed; make it negative to indicate + * overflow. + */ + cutoff = neg ? (unsigned long)-(LONG_MIN + LONG_MAX) + LONG_MAX + : LONG_MAX; + cutlim = cutoff % base; + cutoff /= base; + for ( ; ; c = *s++) { + if (c >= '0' && c <= '9') + c -= '0'; + else if (c >= 'A' && c <= 'Z') + c -= 'A' - 10; + else if (c >= 'a' && c <= 'z') + c -= 'a' - 10; + else + break; + if (c >= base) + break; + if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim)) + any = -1; + else { + any = 1; + acc *= base; + acc += c; + } + } + if (any < 0) { + acc = neg ? LONG_MIN : LONG_MAX; + errno = ERANGE; + } else if (!any) { +noconv: + errno = EINVAL; + } else if (neg) + acc = -acc; + if (endptr != NULL) + *endptr = (char *)(any ? s - 1 : nptr); + return (acc); +} +