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--- util.c Wed Mar 20 21:27:59 2024 +++ util.c Mon Mar 25 16:07:59 2024 @@ -17,6 +17,36 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +/* strcasecmp and strncasecmp: + * + * Copyright (c) 1987, 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. 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. + */ + /* THINK C Project must have a header of "#include <MacHeaders>" */ #include <GestaltEqu.h> @@ -78,6 +108,46 @@ static DialogPtr progress_dialog = NULL; static TEHandle track_control_te = NULL; +/* + * strcasecmp: This array is designed for mapping upper and lower case + * letter together for a case independent comparison. The mappings are + * based upon ascii character sequences. + */ +static const unsigned char strcasecmp_charmap[] = { + '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007', + '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017', + '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027', + '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037', + '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047', + '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057', + '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067', + '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077', + '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147', + '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157', + '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167', + '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137', + '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147', + '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157', + '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167', + '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177', + '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207', + '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217', + '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227', + '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237', + '\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247', + '\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257', + '\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267', + '\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277', + '\300', '\301', '\302', '\303', '\304', '\305', '\306', '\307', + '\310', '\311', '\312', '\313', '\314', '\315', '\316', '\317', + '\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327', + '\330', '\331', '\332', '\333', '\334', '\335', '\336', '\337', + '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347', + '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357', + '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367', + '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377', +}; + enum { STOP_ALERT, CAUTION_ALERT, @@ -499,6 +569,49 @@ strpos_quoted(char *str, char c) return -1; } +size_t +hexify(unsigned char *input, size_t len, unsigned char *output) +{ + static const char hexchars[] = "0123456789abcdef"; + size_t n, retlen = 0; + + for (n = 0; n < len; n++) { + *output++ = hexchars[input[n] >> 4]; + *output++ = hexchars[input[n] & 0xf]; + retlen += 2; + } + + return retlen; +} + +size_t +unhexify(unsigned char *input, size_t len, unsigned char *output) +{ + size_t n, retlen = 0; + uint8_t c; + + for (n = 0; n < len; n++, input++) { + if (*input >= '0' && *input <= '9') + c = *input - '0'; + else if (*input >= 'a' && *input <= 'f') + c = *input - 'a' + 10; + else if (*input >= 'A' && *input <= 'F') + c = *input - 'A' + 10; + else + continue; + + if (n % 2 == 0) + *output = c << 4; + else { + *output |= c; + retlen++; + output++; + } + } + + return retlen; +} + char * OSTypeToString(OSType type) { @@ -513,8 +626,39 @@ OSTypeToString(OSType type) return ostype_s; } +short +strcasecmp(const char *s1, const char *s2) +{ + const unsigned char *cm = strcasecmp_charmap; + const unsigned char *us1 = (const unsigned char *)s1; + const unsigned char *us2 = (const unsigned char *)s2; + + while (cm[*us1] == cm[*us2++]) + if (*us1++ == '\0') + return (0); + return (cm[*us1] - cm[*--us2]); +} + +short +strncasecmp(const char *s1, const char *s2, size_t n) +{ + if (n != 0) { + const unsigned char *cm = strcasecmp_charmap; + const unsigned char *us1 = (const unsigned char *)s1; + const unsigned char *us2 = (const unsigned char *)s2; + + do { + if (cm[*us1] != cm[*us2++]) + return (cm[*us1] - cm[*--us2]); + if (*us1++ == '\0') + break; + } while (--n != 0); + } + return (0); +} + /* - * BSD err(3) and warn(3) functions + * BSD warn(3) functions */ void @@ -594,18 +738,6 @@ panic(const char *format, ...) } void -err(short ret, const char *format, ...) -{ - va_list ap; - - va_start(ap, format); - vwarn(STOP_ALERT, format, ap); - va_end(ap); - - ExitToShell(); -} - -void warn(const char *format, ...) { va_list ap; @@ -616,16 +748,6 @@ warn(const char *format, ...) } void -warnx(const char *format, ...) -{ - va_list ap; - - va_start(ap, format); - vwarn(CAUTION_ALERT, format, ap); - va_end(ap); -} - -void note(const char *format, ...) { va_list ap; @@ -717,7 +839,7 @@ about(char *program_name) ReleaseResource(vers); appicon_note("%s", vers_s); } else - warnx("Can't find version number!"); + warn("Can't find version number!"); } void --- util.h Wed Mar 20 17:11:47 2024 +++ util.h Mon Mar 25 14:38:29 2024 @@ -90,13 +90,15 @@ short getline(char *str, size_t len, char **ret); const char * ordinal(unsigned short n); size_t rtrim(char *str, char *chars); long strpos_quoted(char *str, char c); +size_t hexify(unsigned char *input, size_t len, unsigned char *output); +size_t unhexify(unsigned char *input, size_t len, unsigned char *output); char * OSTypeToString(OSType type); +short strcasecmp(const char *s1, const char *s2); +short strncasecmp(const char *s1, const char *s2, size_t n); unsigned long xorshift32(void); void panic(const char *format, ...); -void err(short ret, const char *format, ...); -void warnx(const char *format, ...); void warn(const char *format, ...); void note(const char *format, ...); void appicon_note(const char *format, ...);