From 007889b4128e8656c55ba31404a698e98719c262 Mon Sep 17 00:00:00 2001 From: Jan Breuer <jan.breuer@mobatime.cz> Date: 周六, 14 7月 2018 01:57:31 +0800 Subject: [PATCH] Fix license wordings to correspond with BSD-2-Clause --- libscpi/src/utils.c | 399 +++++++++++++++++++++++++++++++------------------------- 1 files changed, 221 insertions(+), 178 deletions(-) diff --git a/libscpi/src/utils.c b/libscpi/src/utils.c index b2b9e03..328f8be 100644 --- a/libscpi/src/utils.c +++ b/libscpi/src/utils.c @@ -1,30 +1,29 @@ /*- - * Copyright (c) 2013 Jan Breuer - * Richard.hmm - * Copyright (c) 2012 Jan Breuer + * BSD 2-Clause License * - * All Rights Reserved + * Copyright (c) 2012-2018, Jan Breuer, Richard.hmm + * 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. + * modification, are permitted provided that the following conditions are met: * - * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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. + * * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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. */ /** @@ -108,13 +107,13 @@ break; } - // add sign for numbers in base 10 + /* add sign for numbers in base 10 */ if (sign && ((int32_t) val < 0) && (base == 10)) { uval = -val; ADD_CHAR('-'); } - // remove leading zeros + /* remove leading zeros */ while ((uval / x) == 0) { x /= base; } @@ -184,7 +183,7 @@ case 8: x = 0x8000000000000000ULL; break; - default: + default: case 10: x = 10000000000000000000ULL; base = 10; @@ -194,13 +193,13 @@ break; } - // add sign for numbers in base 10 + /* add sign for numbers in base 10 */ if (sign && ((int64_t) val < 0) && (base == 10)) { uval = -val; ADD_CHAR('-'); } - // remove leading zeros + /* remove leading zeros */ while ((uval / x) == 0) { x /= base; } @@ -249,7 +248,8 @@ * @return number of bytes written to str (without '\0') */ size_t SCPI_FloatToStr(float val, char * str, size_t len) { - return SCPIDEFINE_floatToStr(val, str, len); + SCPIDEFINE_floatToStr(val, str, len); + return strlen(str); } /** @@ -260,7 +260,8 @@ * @return number of bytes written to str (without '\0') */ size_t SCPI_DoubleToStr(double val, char * str, size_t len) { - return SCPIDEFINE_doubleToStr(val, str, len); + SCPIDEFINE_doubleToStr(val, str, len); + return strlen(str); } /** @@ -295,7 +296,7 @@ */ size_t strBaseToInt64(const char * str, int64_t * val, int8_t base) { char * endptr; - *val = strtoll(str, &endptr, base); + *val = SCPIDEFINE_strtoll(str, &endptr, base); return endptr - str; } @@ -307,7 +308,7 @@ */ size_t strBaseToUInt64(const char * str, uint64_t * val, int8_t base) { char * endptr; - *val = strtoull(str, &endptr, base); + *val = SCPIDEFINE_strtoull(str, &endptr, base); return endptr - str; } @@ -319,7 +320,7 @@ */ size_t strToFloat(const char * str, float * val) { char * endptr; - *val = strtof(str, &endptr); + *val = SCPIDEFINE_strtof(str, &endptr); return endptr - str; } @@ -376,7 +377,7 @@ if (num) { if (len1 == len2) { - //*num = 1; + /* *num = 1; */ } else { int32_t tmpNum; i = len1 + strBaseToInt32(str2 + len1, &tmpNum, 10); @@ -528,11 +529,11 @@ } /* now support optional keywords in pattern style, e.g. [:MEASure]:VOLTage:DC? */ - if (pattern_ptr[0] == '[') { // skip first '[' + if (pattern_ptr[0] == '[') { /* skip first '[' */ SKIP_PATTERN(1); brackets++; } - if (pattern_ptr[0] == ':') { // skip first ':' + if (pattern_ptr[0] == ':') { /* skip first ':' */ SKIP_PATTERN(1); } @@ -555,7 +556,7 @@ if ((pattern_sep_pos > 0) && pattern_ptr[pattern_sep_pos - 1] == '#') { if (numbers && (numbers_idx < numbers_len)) { number_ptr = numbers + numbers_idx; - *number_ptr = default_value; // default value + *number_ptr = default_value; /* default value */ } else { number_ptr = NULL; } @@ -582,7 +583,7 @@ /* command complete, but pattern not */ if (cmd_len == 0) { - // verify all subsequent pattern parts are also optional + /* verify all subsequent pattern parts are also optional */ while (pattern_len) { pattern_sep_pos = patternSeparatorPos(pattern_ptr, pattern_len); switch (pattern_ptr[pattern_sep_pos]) { @@ -620,14 +621,14 @@ && (pattern_ptr[1] == cmd_ptr[0]) && (pattern_ptr[0] == '[') && (pattern_ptr[1] == ':')) { - SKIP_PATTERN(2); // for skip '[' in "[:" + SKIP_PATTERN(2); /* for skip '[' in "[:" */ SKIP_CMD(1); brackets++; } else if ((pattern_len > 1) && (pattern_ptr[1] == cmd_ptr[0]) && (pattern_ptr[0] == ']') && (pattern_ptr[1] == ':')) { - SKIP_PATTERN(2); // for skip ']' in "]:" + SKIP_PATTERN(2); /* for skip ']' in "]:" */ SKIP_CMD(1); brackets--; } else if ((pattern_len > 2) @@ -635,10 +636,10 @@ && (pattern_ptr[0] == ']') && (pattern_ptr[1] == '[') && (pattern_ptr[2] == ':')) { - SKIP_PATTERN(3); // for skip '][' in "][:" + SKIP_PATTERN(3); /* for skip '][' in "][:" */ SKIP_CMD(1); - //brackets++; - //brackets--; + /* brackets++; */ + /* brackets--; */ } else { result = FALSE; break; @@ -646,14 +647,14 @@ } else { SKIP_PATTERN(pattern_sep_pos); if ((pattern_ptr[0] == ']') && (pattern_ptr[1] == ':')) { - SKIP_PATTERN(2); // for skip ']' in "]:" , pattern_ptr continue, while cmd_ptr remain unchanged + SKIP_PATTERN(2); /* for skip ']' in "]:" , pattern_ptr continue, while cmd_ptr remain unchanged */ brackets--; } else if ((pattern_len > 2) && (pattern_ptr[0] == ']') && (pattern_ptr[1] == '[') && (pattern_ptr[2] == ':')) { - SKIP_PATTERN(3); // for skip ']' in "][:" , pattern_ptr continue, while cmd_ptr remain unchanged - //brackets++; - //brackets--; + SKIP_PATTERN(3); /* for skip ']' in "][:" , pattern_ptr continue, while cmd_ptr remain unchanged */ + /* brackets++; */ + /* brackets--; */ } else { result = FALSE; break; @@ -750,7 +751,36 @@ } #endif +#if USE_MEMORY_ALLOCATION_FREE && !HAVE_STRNDUP +char *OUR_strndup(const char *s, size_t n) { + size_t len = SCPIDEFINE_strnlen(s, n); + char * result = malloc(len + 1); + if (!result) { + return NULL; + } + memcpy(result, s, len); + result[len] = '\0'; + return result; +} +#endif + #if USE_DEVICE_DEPENDENT_ERROR_INFORMATION && !USE_MEMORY_ALLOCATION_FREE + +/** + * Initialize heap structure + * @param heap - pointer to manual allocated heap buffer + * @param error_info_heap - buffer for the heap + * @param error_info_heap_length - length of the heap + */ +void scpiheap_init(scpi_error_info_heap_t * heap, char * error_info_heap, size_t error_info_heap_length) +{ + heap->data = error_info_heap; + heap->wr = 0; + heap->size = error_info_heap_length; + heap->count = heap->size; + memset(heap->data, 0, heap->size); +} + /** * Duplicate string if "strdup" ("malloc/free") not supported on system. * Allocate space in heap if it possible @@ -759,38 +789,46 @@ * @param s - current pointer of duplication string * @return - pointer of duplicated string or NULL, if duplicate is not possible. */ -char * OUR_strdup(scpi_error_info_heap_t * heap, const char *s) { - if(!s || !heap) { - return NULL; - } +char * scpiheap_strndup(scpi_error_info_heap_t * heap, const char *s, size_t n) { + if (!s || !heap || !heap->size) { + return NULL; + } - if(heap->data[heap->wr]!='\0'){ - return NULL; - } - - size_t len=strlen(s); - if( ( len == 0 ) || ( len > heap->count ) ){ - return NULL; - } - len++; // additional '\0' at end - char * ptrs = s; - char * head = &heap->data[heap->wr]; - size_t rem = heap->size - (&heap->data[heap->wr]-heap->data); - size_t sstp = 0; - - if(len >= rem){ - memcpy(&heap->data[heap->wr],s,rem); - len = len - rem; - ptrs += rem; - heap->wr = 0; - heap->count -= rem; - } - - memcpy(&heap->data[heap->wr],ptrs,len); - heap->wr += len; - heap->count -= len; - - return head; + if (heap->data[heap->wr] != '\0') { + return NULL; + } + + if (*s == '\0') { + return NULL; + } + + size_t len = SCPIDEFINE_strnlen(s, n) + 1; /* additional '\0' at end */ + if (len > heap->count) { + return NULL; + } + const char * ptrs = s; + char * head = &heap->data[heap->wr]; + size_t rem = heap->size - (&heap->data[heap->wr] - heap->data); + + if (len >= rem) { + memcpy(&heap->data[heap->wr], s, rem); + len = len - rem; + ptrs += rem; + heap->wr = 0; + heap->count -= rem; + } + + memcpy(&heap->data[heap->wr], ptrs, len); + heap->wr += len; + heap->count -= len; + + /* ensure '\0' a the end */ + if (heap->wr > 0) { + heap->data[heap->wr - 1] = '\0'; + } else { + heap->data[heap->size - 1] = '\0'; + } + return head; } /** @@ -802,27 +840,27 @@ * @return s2 - pointer of second part of string, if string splited . * @return len2 - lenght of second part of string. */ -scpi_bool_t OUR_get_parts(scpi_error_info_heap_t * heap, const char * s, size_t * len1, const char ** s2, size_t * len2) { - if(!heap || !s || !len1 || !s2 || !len2) { - return FALSE; - } - - if(*s == '\0') { - return FALSE; - } - - *len1 = 0; - size_t rem = heap->size - (s - heap->data); - *len1 = strnlen(s, rem); +scpi_bool_t scpiheap_get_parts(scpi_error_info_heap_t * heap, const char * s, size_t * len1, const char ** s2, size_t * len2) { + if (!heap || !s || !len1 || !s2 || !len2) { + return FALSE; + } - if(&s[*len1-1] == &heap->data[heap->size-1]){ - *s2 = heap->data; - *len2 = strnlen(*s2, heap->size); - }else{ - *s2 = NULL; - *len2 = 0; - } - return TRUE; + if (*s == '\0') { + return FALSE; + } + + *len1 = 0; + size_t rem = heap->size - (s - heap->data); + *len1 = strnlen(s, rem); + + if (&s[*len1 - 1] == &heap->data[heap->size - 1]) { + *s2 = heap->data; + *len2 = strnlen(*s2, heap->size); + } else { + *s2 = NULL; + *len2 = 0; + } + return TRUE; } /** @@ -832,67 +870,69 @@ * @param s - pointer of duplicate string * @param rollback - backward write pointer in heap */ -void OUR_free(scpi_error_info_heap_t * heap, const char * s, scpi_bool_t rollback) { - - if(!s) return; - - char * data_add; - size_t len[2]; - - if( !OUR_get_parts( heap, s, &len[0], &data_add, &len[1] ) ) return; - - if(data_add) { - len[1]++; - memset(data_add,0,len[1]); - heap->count += len[1]; - } else { - len[0]++; - } - memset(s,0,len[0]); - heap->count += len[0]; - if( heap->count == heap->size){ - heap->wr = 0; - return; - } - if(rollback){ - size_t rb = len[0] + len[1]; - if( rb > heap->wr){ - heap->wr += heap->size; - } - heap->wr -= rb; - } +void scpiheap_free(scpi_error_info_heap_t * heap, char * s, scpi_bool_t rollback) { + + if (!s) return; + + char * data_add; + size_t len[2]; + + if (!scpiheap_get_parts(heap, s, &len[0], (const char **)&data_add, &len[1])) return; + + if (data_add) { + len[1]++; + memset(data_add, 0, len[1]); + heap->count += len[1]; + } else { + len[0]++; + } + memset(s, 0, len[0]); + heap->count += len[0]; + if (heap->count == heap->size) { + heap->wr = 0; + return; + } + if (rollback) { + size_t rb = len[0] + len[1]; + if (rb > heap->wr) { + heap->wr += heap->size; + } + heap->wr -= rb; + } } #endif -// Floating point to string conversion routines -// -// Copyright (C) 2002 Michael Ringgaard. 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 project 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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. +/* + * Floating point to string conversion routines + * + * Copyright (C) 2002 Michael Ringgaard. 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 project 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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. + */ static char *scpi_ecvt(double arg, int ndigits, int *decpt, int *sign, char *buf, size_t bufsize) { int r1, r2; @@ -925,7 +965,7 @@ buf[--w2] = (int) ((fj + .03) * 10) + '0'; r2++; } - while (w2 < (int)bufsize) buf[w1++] = buf[w2++]; + while (w2 < (int) bufsize) buf[w1++] = buf[w2++]; } else if (arg > 0) { while ((fj = arg * 10) < 1) { arg = fj; @@ -938,12 +978,12 @@ buf[0] = '\0'; return buf; } - while (w1 <= w2 && w1 < (int)bufsize) { + while (w1 <= w2 && w1 < (int) bufsize) { arg *= 10; arg = modf(arg, &fj); buf[w1++] = (int) fj + '0'; } - if (w2 >= (int)bufsize) { + if (w2 >= (int) bufsize) { buf[bufsize - 1] = '\0'; return buf; } @@ -967,14 +1007,14 @@ char * SCPI_dtostre(double __val, char * __s, size_t __ssize, unsigned char __prec, unsigned char __flags) { char buffer[SCPI_DTOSTRE_BUFFER_SIZE]; - int sign = signbit(__val); + int sign = SCPIDEFINE_signbit(__val); char * s = buffer; int decpt; if (sign) { __val = -__val; s[0] = '-'; s++; - } else if (!isnan(__val)) { + } else if (!SCPIDEFINE_isnan(__val)) { if (SCPI_DTOSTRE_PLUS_SIGN & __flags) { s[0] = '+'; s++; @@ -984,13 +1024,14 @@ } } - if (!isfinite(__val)) { - if (isnan(__val)) { + if (!SCPIDEFINE_isfinite(__val)) { + if (SCPIDEFINE_isnan(__val)) { strcpy(s, (__flags & SCPI_DTOSTRE_UPPERCASE) ? "NAN" : "nan"); } else { strcpy(s, (__flags & SCPI_DTOSTRE_UPPERCASE) ? "INF" : "inf"); } strncpy(__s, buffer, __ssize); + __s[__ssize - 1] = '\0'; return __s; } @@ -1044,14 +1085,16 @@ } strncpy(__s, buffer, __ssize); + __s[__ssize - 1] = '\0'; return __s; } /** * Get native CPU endiannes - * @return + * @return */ scpi_array_format_t SCPI_GetNativeFormat(void) { + union { uint32_t i; char c[4]; @@ -1063,37 +1106,37 @@ /** * Swap 16bit number * @param val - * @return + * @return */ uint16_t SCPI_Swap16(uint16_t val) { - return ((val & 0x00FF) << 8) | + return ((val & 0x00FF) << 8) | ((val & 0xFF00) >> 8); } /** * Swap 32bit number * @param val - * @return + * @return */ uint32_t SCPI_Swap32(uint32_t val) { - return ((val & 0x000000FF) << 24) | - ((val & 0x0000FF00) << 8) | - ((val & 0x00FF0000) >> 8) | - ((val & 0xFF000000) >> 24); + return ((val & 0x000000FFul) << 24) | + ((val & 0x0000FF00ul) << 8) | + ((val & 0x00FF0000ul) >> 8) | + ((val & 0xFF000000ul) >> 24); } /** * Swap 64bit number * @param val - * @return + * @return */ uint64_t SCPI_Swap64(uint64_t val) { - return ((val & 0x00000000000000FFul) << 56) | - ((val & 0x000000000000FF00ul) << 40) | - ((val & 0x0000000000FF0000ul) << 24) | - ((val & 0x00000000FF000000ul) << 8) | - ((val & 0x000000FF00000000ul) >> 8) | - ((val & 0x0000FF0000000000ul) >> 24) | - ((val & 0x00FF000000000000ul) >> 40) | - ((val & 0xFF00000000000000ul) >> 56); + return ((val & 0x00000000000000FFull) << 56) | + ((val & 0x000000000000FF00ull) << 40) | + ((val & 0x0000000000FF0000ull) << 24) | + ((val & 0x00000000FF000000ull) << 8) | + ((val & 0x000000FF00000000ull) >> 8) | + ((val & 0x0000FF0000000000ull) >> 24) | + ((val & 0x00FF000000000000ull) >> 40) | + ((val & 0xFF00000000000000ull) >> 56); } -- Gitblit v1.9.1