379 lines
8.1 KiB
C
379 lines
8.1 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define _DEFAULT_SOURCE
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#include "tutil.h"
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void *tmemmem(const char *haystack, int32_t hlen, const char *needle, int32_t nlen) {
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const char *limit;
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if (nlen == 0 || hlen < nlen) {
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return NULL;
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}
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limit = haystack + hlen - nlen + 1;
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while ((haystack = (char *)memchr(haystack, needle[0], limit - haystack)) != NULL) {
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if (memcmp(haystack, needle, nlen) == 0) {
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return (void *)haystack;
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}
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haystack++;
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}
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return NULL;
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}
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int32_t strdequote(char *z) {
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if (z == NULL) {
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return 0;
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}
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int32_t quote = z[0];
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if (quote != '\'' && quote != '"' && quote != '`') {
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return (int32_t)strlen(z);
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}
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int32_t i = 1, j = 0;
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while (z[i] != 0) {
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if (z[i] == quote) {
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if (z[i + 1] == quote) {
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z[j++] = (char)quote;
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i++;
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} else {
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z[j++] = 0;
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return (j - 1);
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}
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} else {
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z[j++] = z[i];
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}
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i++;
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}
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return j + 1; // only one quote, do nothing
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}
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size_t strtrim(char *z) {
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int32_t i = 0;
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int32_t j = 0;
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int32_t delta = 0;
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while (isspace(z[j])) {
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++j;
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}
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if (z[j] == 0) {
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z[0] = 0;
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return 0;
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}
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delta = j;
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int32_t stop = 0;
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while (z[j] != 0) {
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if (isspace(z[j]) && stop == 0) {
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stop = j;
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} else if (!isspace(z[j]) && stop != 0) {
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stop = 0;
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}
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z[i++] = z[j++];
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}
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if (stop > 0) {
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z[stop - delta] = 0;
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return (stop - delta);
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} else if (j != i) {
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z[i] = 0;
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}
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return i;
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}
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char **strsplit(char *z, const char *delim, int32_t *num) {
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*num = 0;
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int32_t size = 4;
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char **split = taosMemoryMalloc(POINTER_BYTES * size);
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for (char *p = strsep(&z, delim); p != NULL; p = strsep(&z, delim)) {
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size_t len = strlen(p);
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if (len == 0) {
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continue;
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}
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split[(*num)++] = p;
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if ((*num) >= size) {
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size = (size << 1);
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split = taosMemoryRealloc(split, POINTER_BYTES * size);
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assert(NULL != split);
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}
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}
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return split;
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}
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char *strnchr(const char *haystack, char needle, int32_t len, bool skipquote) {
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for (int32_t i = 0; i < len; ++i) {
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// skip the needle in quote, jump to the end of quoted string
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if (skipquote && (haystack[i] == '\'' || haystack[i] == '"')) {
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char quote = haystack[i++];
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while (i < len && haystack[i++] != quote)
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;
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if (i >= len) {
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return NULL;
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}
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}
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if (haystack[i] == needle) {
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return (char *)&haystack[i];
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}
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}
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return NULL;
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}
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char *strtolower(char *dst, const char *src) {
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int32_t esc = 0;
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char quote = 0, *p = dst, c;
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assert(dst != NULL);
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for (c = *src++; c; c = *src++) {
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if (esc) {
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esc = 0;
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} else if (quote) {
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if (c == '\\') {
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esc = 1;
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} else if (c == quote) {
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quote = 0;
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}
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} else if (c >= 'A' && c <= 'Z') {
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c -= 'A' - 'a';
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} else if (c == '\'' || c == '"') {
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quote = c;
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}
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*p++ = c;
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}
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*p = 0;
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return dst;
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}
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char *strntolower(char *dst, const char *src, int32_t n) {
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int32_t esc = 0;
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char quote = 0, *p = dst, c;
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assert(dst != NULL);
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if (n == 0) {
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*p = 0;
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return dst;
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}
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for (c = *src++; n-- > 0; c = *src++) {
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if (esc) {
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esc = 0;
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} else if (quote) {
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if (c == '\\') {
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esc = 1;
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} else if (c == quote) {
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quote = 0;
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}
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} else if (c >= 'A' && c <= 'Z') {
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c -= 'A' - 'a';
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} else if (c == '\'' || c == '"' || c == '`') {
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quote = c;
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}
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*p++ = c;
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}
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*p = 0;
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return dst;
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}
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char *strntolower_s(char *dst, const char *src, int32_t n) {
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char *p = dst, c;
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assert(dst != NULL);
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if (n == 0) {
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return NULL;
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}
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while (n-- > 0) {
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c = *src;
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if (c >= 'A' && c <= 'Z') {
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c -= 'A' - 'a';
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}
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*p++ = c;
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src++;
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}
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return dst;
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}
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char *paGetToken(char *string, char **token, int32_t *tokenLen) {
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char quote = 0;
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while (*string != 0) {
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if (*string == ' ' || *string == '\t') {
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++string;
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} else {
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break;
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}
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}
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if (*string == '@') {
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quote = 1;
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string++;
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}
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*token = string;
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while (*string != 0) {
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if (*string == '@' && quote) {
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//*string = 0;
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++string;
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break;
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}
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if (*string == '#' || *string == '\n' || *string == '\r') {
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*string = 0;
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break;
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}
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if ((*string == ' ' || *string == '\t') && !quote) {
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break;
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} else {
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++string;
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}
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}
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*tokenLen = (int32_t)(string - *token);
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if (quote) {
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*tokenLen = *tokenLen - 1;
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}
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return string;
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}
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int64_t strnatoi(char *num, int32_t len) {
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int64_t ret = 0, i, dig, base = 1;
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if (len > (int32_t)strlen(num)) {
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len = (int32_t)strlen(num);
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}
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if ((len > 2) && (num[0] == '0') && ((num[1] == 'x') || (num[1] == 'X'))) {
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for (i = len - 1; i >= 2; --i, base *= 16) {
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if (num[i] >= '0' && num[i] <= '9') {
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dig = (num[i] - '0');
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} else if (num[i] >= 'a' && num[i] <= 'f') {
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dig = num[i] - 'a' + 10;
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} else if (num[i] >= 'A' && num[i] <= 'F') {
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dig = num[i] - 'A' + 10;
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} else {
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return 0;
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}
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ret += dig * base;
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}
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} else {
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for (i = len - 1; i >= 0; --i, base *= 10) {
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if (num[i] >= '0' && num[i] <= '9') {
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dig = (num[i] - '0');
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} else {
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return 0;
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}
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ret += dig * base;
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}
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}
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return ret;
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}
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char *strbetween(char *string, char *begin, char *end) {
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char *result = NULL;
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char *_begin = strstr(string, begin);
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if (_begin != NULL) {
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char *_end = strstr(_begin + strlen(begin), end);
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int32_t size = (int32_t)(_end - _begin);
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if (_end != NULL && size > 0) {
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result = (char *)taosMemoryCalloc(1, size);
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memcpy(result, _begin + strlen(begin), size - +strlen(begin));
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}
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}
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return result;
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}
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int32_t taosByteArrayToHexStr(char bytes[], int32_t len, char hexstr[]) {
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int32_t i;
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char hexval[16] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
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for (i = 0; i < len; i++) {
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hexstr[i * 2] = hexval[((bytes[i] >> 4u) & 0xF)];
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hexstr[(i * 2) + 1] = hexval[(bytes[i]) & 0x0F];
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}
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return 0;
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}
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int32_t taosHexStrToByteArray(char hexstr[], char bytes[]) {
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int32_t len, i;
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char ch;
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// char *by;
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len = (int32_t)strlen((char *)hexstr) / 2;
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for (i = 0; i < len; i++) {
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ch = hexstr[i * 2];
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if (ch >= '0' && ch <= '9')
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bytes[i] = (char)(ch - '0');
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else if (ch >= 'A' && ch <= 'F')
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bytes[i] = (char)(ch - 'A' + 10);
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else if (ch >= 'a' && ch <= 'f')
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bytes[i] = (char)(ch - 'a' + 10);
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else
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return -1;
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ch = hexstr[i * 2 + 1];
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if (ch >= '0' && ch <= '9')
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bytes[i] = (char)((bytes[i] << 4) + (ch - '0'));
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else if (ch >= 'A' && ch <= 'F')
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bytes[i] = (char)((bytes[i] << 4) + (ch - 'A' + 10));
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else if (ch >= 'a' && ch <= 'f')
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bytes[i] = (char)((bytes[i] << 4) + (ch - 'a' + 10));
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else
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return -1;
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}
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return 0;
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}
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char *taosIpStr(uint32_t ipInt) {
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static char ipStrArray[3][30];
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static int32_t ipStrIndex = 0;
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char *ipStr = ipStrArray[(ipStrIndex++) % 3];
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// sprintf(ipStr, "0x%x:%u.%u.%u.%u", ipInt, ipInt & 0xFF, (ipInt >> 8) & 0xFF, (ipInt >> 16) & 0xFF, (uint8_t)(ipInt
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// >> 24));
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sprintf(ipStr, "%u.%u.%u.%u", ipInt & 0xFF, (ipInt >> 8) & 0xFF, (ipInt >> 16) & 0xFF, (uint8_t)(ipInt >> 24));
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return ipStr;
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}
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void taosIp2String(uint32_t ip, char *str) {
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sprintf(str, "%u.%u.%u.%u", ip & 0xFF, (ip >> 8) & 0xFF, (ip >> 16) & 0xFF, (uint8_t)(ip >> 24));
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}
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void taosIpPort2String(uint32_t ip, uint16_t port, char *str) {
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sprintf(str, "%u.%u.%u.%u:%u", ip & 0xFF, (ip >> 8) & 0xFF, (ip >> 16) & 0xFF, (uint8_t)(ip >> 24), port);
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}
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