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/* SPDX-License-Identifier: GPL-2.0 */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdarg.h>
#include <string.h>
#include <termios.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include "shared/utils.h"
#include "misc.h"
#include "minecctl.h"
/* 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;
enable_colors();
}
char **strv_copy(char *const *strv)
{
size_t len = 1;
char **rv;
char **to;
for (char *const *str = strv; *str; str++)
len++;
rv = zmalloc(len * sizeof(char *));
to = rv;
for (char *const *str = strv; *str; str++)
*(to++) = xstrdup(*str);
return rv;
}
char **strv_from_strs(const char *first, ...)
{
size_t len = 1;
va_list ap;
char **rv, **to;
if (first) {
va_start(ap, first);
while (va_arg(ap, const char *))
len++;
va_end(ap);
}
rv = zmalloc(len * sizeof(char *));
to = rv;
*(to++) = first ? xstrdup(first) : NULL;
if (first) {
const char *str;
va_start(ap, first);
while ((str = va_arg(ap, const char *)))
*(to++) = xstrdup(str);
va_end(ap);
*to = NULL;
}
return rv;
}
char *strv_join(char *const *strv)
{
size_t len = 0;
char *rv, *to;
for (char *const *str = strv; *str; str++)
len += strlen(*str) + 1;
if (len == 0)
return NULL;
rv = zmalloc(len);
to = rv;
for (char *const *str = strv; *str; str++) {
if (str != strv)
*(to++) = ' ';
to = stpcpy(to, *str);
}
return rv;
}
void strv_free(char **strv)
{
if (!strv)
return;
for (char **str = strv; *str; str++)
xfree(*str);
xfree(strv);
}
int connect_any(struct list_head *addrs, struct saddr **rsaddr,
const char **error)
{
struct saddr *saddr;
int sfd;
if (list_empty(addrs)) {
*error = "no address to connect to";
return -1;
}
list_for_each_entry(saddr, addrs, list) {
verbose("Attempting connection to %s", saddr->addrstr);
sfd = socket(saddr->st.ss_family, SOCK_STREAM | SOCK_CLOEXEC, 0);
if (sfd < 0) {
*error = "failed to create socket";
return -1;
}
socket_set_low_latency(sfd, true, true, true);
if (connect(sfd, (struct sockaddr *)&saddr->st,
saddr->addrlen) < 0) {
close(sfd);
sfd = -1;
continue;
}
if (rsaddr)
*rsaddr = saddr;
break;
}
if (sfd < 0) {
*error = "failed to connect to remote host";
return -1;
}
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 __debug(_unused_ enum debug_lvl lvl, const char *fmt, ...)
{
va_list ap;
const char *color = NULL;
if (lvl & DBG_ERROR)
color = ansi_red;
else if (!(lvl & (DBG_INFO | DBG_VERBOSE)))
color = ansi_grey;
if (color)
fprintf(stderr, "%s", color);
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
if (color)
fprintf(stderr, "%s", 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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