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#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <unistd.h>
#include <errno.h>
#include <assert.h>
#include "util.h"
int uniqid(void) {
static int i = 0;
return i++;
}
void xxd(const void *buf_, size_t length) {
unsigned char *buf = (unsigned char*)buf_;
for (size_t cursor = 0; cursor < length;) {
printf("%08zx:", cursor);
for (int i = 0; i < 16; i++) {
if (i % 2 == 0) printf(" ");
if (i % 8 == 0) printf(" ");
if (cursor + i < length) printf("%02x", (unsigned)buf[cursor + i]);
else printf(" ");
}
printf(" |");
for (int i = 0; i < 16 && cursor + i < length; i++) {
if (isprint(buf[cursor + i])) printf("%c", buf[cursor + i]);
else printf(".");
}
printf("|\n");
cursor += 16;
}
}
ssize_t readall(int fd, void *data, size_t length) {
size_t cursor = 0;
while (cursor < length) {
ssize_t nr = read(fd, data + cursor, length - cursor);
if (nr < 0) {
if (errno == EINTR) continue;
return -1;
}
assert(nr > 0);
cursor += nr;
}
return length;
}
ssize_t writeall(int fd, const void *data, size_t length) {
size_t cursor = 0;
while (cursor < length) {
ssize_t nw = write(fd, data + cursor, length - cursor);
if (nw < 0) {
if (errno == EINTR) continue;
return -1;
}
assert(nw > 0);
cursor += nw;
}
return length;
}
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