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log.c
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log.c
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#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <time.h>
#include <sys/time.h>
#include <unistd.h>
void trace(const char* format, ...) {
va_list param;
struct timeval tv;
struct tm *nowtm;
time_t nowtime;
char tmbuf[64], buf[512];
gettimeofday(&tv, NULL);
nowtime = tv.tv_sec;
nowtm = localtime(&nowtime);
strftime(tmbuf, sizeof tmbuf, "%H:%M:%S", nowtm);
snprintf(buf, sizeof buf, "%s.%03ld", tmbuf, tv.tv_usec);
FILE *out = fopen("/dev/stdout","a+");
va_start(param, format);
fprintf(out, "(%d) %s: " , getpid(), buf);
vfprintf(out, format, param);
fprintf(out, "\n");
va_end(param);
fclose(out);
}
void hd(const void* data, size_t size) {
char ascii[17];
size_t i, j;
ascii[16] = '\0';
for (i = 0; i < size; ++i) {
printf("%02X ", ((unsigned char*)data)[i]);
if (((unsigned char*)data)[i] >= ' ' && ((unsigned char*)data)[i] <= '~') {
ascii[i % 16] = ((unsigned char*)data)[i];
} else {
ascii[i % 16] = '.';
}
if ((i+1) % 8 == 0 || i+1 == size) {
printf(" ");
if ((i+1) % 16 == 0) {
printf("| %s \n", ascii);
} else if (i+1 == size) {
ascii[(i+1) % 16] = '\0';
if ((i+1) % 16 <= 8) {
printf(" ");
}
for (j = (i+1) % 16; j < 16; ++j) {
printf(" ");
}
printf("| %s \n", ascii);
}
}
}
}