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Copy pathmisc.c
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184 lines (152 loc) · 4.18 KB
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#include <stdlib.h>
#include <ctype.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <getopt.h>
#include "linkedlist.h"
#include "logging.h"
#include "minieap_common.h"
// From cmdline
#ifdef ENABLE_ICONV
#include <iconv.h>
#elif ENABLE_GBCONV
#include "gbconv.h"
#endif
void chk_free(void** pptr) {
if (pptr == NULL || *pptr == NULL)
return;
free(*pptr);
*pptr = NULL;
}
uint8_t char2hex(const char* str) {
#define LOWER2HEX(digit) (((digit) >= 'a') ? (10 + ((digit) - 'a')) : ((digit) - '0'))
const char digit0 = tolower(str[0]);
const char digit1 = tolower(str[1]);
if (digit1 == 0) {
return LOWER2HEX(digit0);
}
return 16 * LOWER2HEX(digit0) + LOWER2HEX(digit1);
}
void hex2char(uint8_t hex, char* out) {
#define HEX2LOWER(digit) (((digit) >= 0xa) ? ((digit) - 0xa + 'a') : ((digit) + '0'))
out[0] = HEX2LOWER(hex & 0xf);
out[1] = HEX2LOWER((hex & 0xf0) >> 4);
}
char* my_itoa(int val, char* buf, uint32_t radix) {
if (val < 0) {
buf[0] = '-';
val = -val; /* For easier dividing */
}
char* curr_pos = buf;
do { /* Fill it in reversed order */
*curr_pos++ = HEX2LOWER(val % radix);
val /= radix;
} while (val > 0);
*curr_pos-- = 0;
char tmp;
char* rev_pos = buf;
while (rev_pos < curr_pos) { /* Reverse the buffer to get normal order */
tmp = *curr_pos;
*curr_pos-- = *rev_pos;
*rev_pos++ = tmp;
};
return buf;
}
int shortopt2longindex(int opt, const struct option* longopts, int array_len) {
int index;
for (index = 0; index < array_len; index++) {
if (longopts[index].val == opt) {
return index;
}
}
return -1;
}
uint8_t bit_reverse(uint8_t in) {
static const uint8_t half_reverse_table[] = {
0x0, 0x8, 0x4, 0xc, 0x2, 0xa, 0x6, 0xe,
0x1, 0x9, 0x5, 0xd, 0x3, 0xb, 0x7, 0xf
};
return half_reverse_table[in & 0xf] << 4 | half_reverse_table[(in & 0xf0) >> 4];
}
void gbk2utf8(char* in, size_t inlen, char* out, size_t outlen) {
#ifdef ENABLE_ICONV
iconv_t _cd = iconv_open("utf-8", "gbk");
if (_cd == NULL) {
PR_WARN("无法从 iconv 获取编码描述符，服务器消息可能会出现乱码");
memmove(out, in, inlen);
} else {
iconv(_cd, &in, &inlen, &out, &outlen);
iconv_close(_cd);
}
#elif defined(ENABLE_GBCONV)
gbconv8(in, out, outlen);
#else
memmove(out, in, inlen);
#endif
}
void pr_info_gbk(char* in, size_t inlen) {
size_t _utf8_size = inlen << 2;
char* _utf8_buf = (char*)malloc(_utf8_size);
memset(_utf8_buf, 0, _utf8_size);
if (_utf8_buf != NULL) {
gbk2utf8(in, inlen, _utf8_buf, _utf8_size);
PR_INFO("%s", _utf8_buf);
free(_utf8_buf);
} else {
_utf8_buf = in;
PR_INFO("%s", _utf8_buf);
}
}
RESULT go_background() {
pid_t pid;
pid = fork();
if (pid < 0)
return FAILURE;
if (pid > 0)
_exit(0); /* Do not call exit_handler() */
if (setsid() < 0)
return FAILURE;
return SUCCESS;
}
char** strarraydup(int count, char* array[]) {
if (array == 0) return NULL;
char** _ret = (char**)malloc(count * sizeof(char*));
if (_ret == NULL) {
PR_ERR("无法为命令行选项创建缓冲区");
return NULL;
}
int _curr_seq = 0;
for (;_curr_seq < count; _curr_seq++) {
_ret[_curr_seq] = array[_curr_seq] ? strdup(array[_curr_seq]) : NULL;
}
return _ret;
}
void strarrayfree(int count, char* array[]) {
if (array == 0) return;
int _curr_seq = 0;
for (;_curr_seq < count; _curr_seq++) {
free(array[_curr_seq]);
}
}
void strarrayprint(int count, char* array[]) {
if (array == 0) return;
int _curr_seq = 0;
for (;_curr_seq < count; _curr_seq++) {
PR_DBG("Element %d: %s", _curr_seq, array[_curr_seq]);
}
}
void* memdup(const void* src, int n) {
if (n <= 0) {
// Make sure this is consistent
return NULL;
}
void* ret = malloc(n);
if (ret == NULL) {
// Suggest this is an error. THIS IS NON STANDARD
return (void*)-1;
}
memmove(ret, src, n);
return ret;
}