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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdarg.h>
#include <string.h>
#include <termios.h>
#include "utils.h"
#include "minecctl.h"
bool use_colors = false;
/* FIXME: Can be shared */
void
set_use_colors()
{
int fd;
const char *e;
if (getenv("NO_COLOR"))
return;
fd = fileno(stderr);
if (fd < 0)
return;
if (!isatty(fd))
return;
e = getenv("TERM");
if (!e)
return;
if (streq(e, "dumb"))
return;
use_colors = true;
}
char *
strv_join(char * const *strv)
{
size_t len = 0;
char *r, *to;
for (unsigned i = 0; strv[i]; i++)
len += strlen(strv[i]) + 1;
if (len == 0)
return NULL;
r = zmalloc(len);
to = r;
for (unsigned i = 0; strv[i]; i++) {
if (i > 0)
*(to++) = ' ';
to = stpcpy(to, strv[i]);
}
return r;
}
int
connect_any(struct list_head *addrs, bool may_fail)
{
struct saddr *saddr;
bool connected = false;
int sfd;
if (list_empty(addrs))
die("No address to connect to");
list_for_each_entry(saddr, addrs, list) {
verbose("Attempting connection to %s", saddr->addrstr);
sfd = socket(saddr->storage.ss_family, SOCK_STREAM | SOCK_CLOEXEC, 0);
if (sfd < 0)
die("socket: %m");
socket_set_low_latency(sfd, true, true, true);
if (connect(sfd, (struct sockaddr *)&saddr->storage, saddr->addrlen) < 0) {
close(sfd);
continue;
}
connected = true;
break;
}
if (!connected && may_fail)
return -1;
else if (!connected)
die("Failed to connect to remote host");
return sfd;
}
char *
ask_password()
{
struct termios old, new;
char *password = NULL;
size_t len = 0;
ssize_t r;
if (!isatty(STDIN_FILENO))
return NULL;
if (tcgetattr(STDIN_FILENO, &old) < 0)
return NULL;
new = old;
new.c_lflag &= ~ECHO;
new.c_lflag |= ICANON;
if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &new) < 0)
return NULL;
fprintf(stderr, "Password: ");
r = getline(&password, &len, stdin);
tcsetattr(STDIN_FILENO, TCSAFLUSH, &old);
if (r < 0) {
info("Error in getline: %m");
clearerr(stdin);
free(password);
return NULL;
}
while (r > 0 && password[r - 1] == '\n')
password[--r] = '\0';
return password;
}
void
free_password(char **password)
{
if (!password || !*password)
return;
explicit_bzero(*password, strlen(*password));
xfree(*password);
*password = NULL;
}
void
__debug(_unused_ enum debug_lvl lvl, const char *fmt, ...)
{
va_list ap;
if (use_colors) {
if (lvl & DBG_ERROR)
fprintf(stderr, ANSI_RED);
else if (!(lvl & (DBG_INFO | DBG_VERBOSE)))
fprintf(stderr, ANSI_GREY);
}
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
if (use_colors && !(lvl & (DBG_INFO | DBG_VERBOSE)))
fprintf(stderr, ANSI_NORMAL);
}
_noreturn_ void
__die(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
exit(EXIT_FAILURE);
}
void *
__zmalloc(const char *fn, int line, size_t size)
{
void *ptr;
assert_die(!empty_str(fn) && line > 0 && size > 0, "invalid arguments");
ptr = calloc(1, size);
if (!ptr)
die("malloc: %m");
return ptr;
}
char *
__xstrdup(const char *fn, int line, const char *s)
{
char *ptr;
assert_die(!empty_str(fn) && line > 0 && !empty_str(s), "invalid arguments");
ptr = strdup(s);
if (!ptr)
die("strdup: %m");
return ptr;
}
char *
__xstrndup(const char *fn, int line, const char *s, size_t n)
{
char *ptr;
assert_die(!empty_str(fn) && line > 0 && !empty_str(s) && n > 0, "invalid arguments");
ptr = strndup(s, n);
if (ptr)
die("strdup: %m");
return ptr;
}
void
__xfree(const char *fn, int line, void *ptr)
{
assert_die(!empty_str(fn) && line > 0, "invalid arguments");
free(ptr);
}
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