/*
* get username and password from a file descriptor
*/
void FAST_FUNC get_cred_or_die(int fd)
{
if (isatty(fd)) {
G.user = xstrdup(bb_ask(fd, /* timeout: */ 0, "User: "******"Password: "******"no username or password");
}
static int apply_one_hunk(void)
{
struct double_list *plist, *buf = NULL, *check;
int matcheof = 0, reverse = option_mask32 & FLAG_REVERSE, backwarn = 0;
/* Do we try "dummy" revert to check whether
* to silently skip this hunk? Used to implement -N.
*/
int dummy_revert = 0;
// Break doubly linked list so we can use singly linked traversal function.
TT.current_hunk->prev->next = NULL;
// Match EOF if there aren't as many ending context lines as beginning
for (plist = TT.current_hunk; plist; plist = plist->next) {
if (plist->data[0]==' ') matcheof++;
else matcheof = 0;
if (PATCH_DEBUG) fdprintf(2, "HUNK:%s\n", plist->data);
}
matcheof = !matcheof || matcheof < TT.context;
if (PATCH_DEBUG) fdprintf(2,"MATCHEOF=%c\n", matcheof ? 'Y' : 'N');
// Loop through input data searching for this hunk. Match all context
// lines and all lines to be removed until we've found the end of a
// complete hunk.
plist = TT.current_hunk;
buf = NULL;
if (reverse ? TT.oldlen : TT.newlen) for (;;) {
char *data = xmalloc_reads(TT.filein, NULL);
TT.linenum++;
// Figure out which line of hunk to compare with next. (Skip lines
// of the hunk we'd be adding.)
while (plist && *plist->data == "+-"[reverse]) {
if (data && !strcmp(data, plist->data+1)) {
if (!backwarn) {
backwarn = TT.linenum;
if (option_mask32 & FLAG_IGNORE) {
dummy_revert = 1;
reverse ^= 1;
continue;
}
}
}
plist = plist->next;
}
// Is this EOF?
if (!data) {
if (PATCH_DEBUG) fdprintf(2, "INEOF\n");
// Does this hunk need to match EOF?
if (!plist && matcheof) break;
if (backwarn)
fdprintf(2,"Possibly reversed hunk %d at %ld\n",
TT.hunknum, TT.linenum);
// File ended before we found a place for this hunk.
fail_hunk();
goto done;
}
if (PATCH_DEBUG) fdprintf(2, "IN: %s\n", data);
check = dlist_add(&buf, data);
// Compare this line with next expected line of hunk.
// todo: teach the strcmp() to ignore whitespace.
// A match can fail because the next line doesn't match, or because
// we hit the end of a hunk that needed EOF, and this isn't EOF.
// If match failed, flush first line of buffered data and
// recheck buffered data for a new match until we find one or run
// out of buffer.
for (;;) {
if (!plist || strcmp(check->data, plist->data+1)) {
// Match failed. Write out first line of buffered data and
// recheck remaining buffered data for a new match.
if (PATCH_DEBUG)
fdprintf(2, "NOT: %s\n", plist->data);
TT.state = 3;
check = buf;
buf = buf->next;
check->prev->next = buf;
buf->prev = check->prev;
do_line(check);
plist = TT.current_hunk;
// If we've reached the end of the buffer without confirming a
// match, read more lines.
if (check == buf) {
buf = NULL;
break;
}
check = buf;
} else {
if (PATCH_DEBUG)
fdprintf(2, "MAYBE: %s\n", plist->data);
// This line matches. Advance plist, detect successful match.
plist = plist->next;
if (!plist && !matcheof) goto out;
check = check->next;
if (check == buf) break;
}
}
}
out:
// We have a match. Emit changed data.
TT.state = "-+"[reverse ^ dummy_revert];
dlist_free(TT.current_hunk, do_line);
TT.current_hunk = NULL;
TT.state = 1;
done:
if (buf) {
buf->prev->next = NULL;
dlist_free(buf, do_line);
}
return TT.state;
}
static char *xmalloc_read_stdin(void)
{
// SECURITY:
size_t max = 4 * 1024; // more than enough for commands!
return xmalloc_reads(STDIN_FILENO, NULL, &max);
}
int acpid_main(int argc UNUSED_PARAM, char **argv)
{
int nfd;
int opts;
struct pollfd *pfd;
const char *opt_dir = "/etc/acpi";
const char *opt_input = "/dev/input/event";
const char *opt_logfile = "/var/log/acpid.log";
const char *opt_action = "/etc/acpid.conf";
const char *opt_map = "/etc/acpi.map";
#if ENABLE_FEATURE_PIDFILE
const char *opt_pidfile = "/var/run/acpid.pid";
#endif
INIT_G();
opt_complementary = "df:e--e";
opts = getopt32(argv, "c:de:fl:a:M:" IF_FEATURE_PIDFILE("p:") IF_FEATURE_ACPID_COMPAT("g:m:s:S:v"),
&opt_dir, &opt_input, &opt_logfile, &opt_action, &opt_map
IF_FEATURE_PIDFILE(, &opt_pidfile)
IF_FEATURE_ACPID_COMPAT(, NULL, NULL, NULL, NULL)
);
if (!(opts & OPT_f)) {
/* No -f "Foreground", we go to background */
bb_daemonize_or_rexec(DAEMON_CLOSE_EXTRA_FDS, argv);
}
if (!(opts & OPT_d)) {
/* No -d "Debug", we log to log file.
* This includes any output from children.
*/
xmove_fd(xopen(opt_logfile, O_WRONLY | O_CREAT | O_TRUNC), STDOUT_FILENO);
xdup2(STDOUT_FILENO, STDERR_FILENO);
/* Also, acpid's messages (but not children) will go to syslog too */
openlog(applet_name, LOG_PID, LOG_DAEMON);
logmode = LOGMODE_SYSLOG | LOGMODE_STDIO;
}
/* else: -d "Debug", log is not redirected */
parse_conf_file(opt_action);
parse_map_file(opt_map);
xchdir(opt_dir);
bb_signals((1 << SIGCHLD), SIG_IGN);
bb_signals(BB_FATAL_SIGS, record_signo);
pfd = NULL;
nfd = 0;
while (1) {
int fd;
char *dev_event;
dev_event = xasprintf((opts & OPT_e) ? "%s" : "%s%u", opt_input, nfd);
fd = open(dev_event, O_RDONLY | O_NONBLOCK);
if (fd < 0) {
if (nfd == 0)
bb_simple_perror_msg_and_die(dev_event);
break;
}
free(dev_event);
pfd = xrealloc_vector(pfd, 1, nfd);
pfd[nfd].fd = fd;
pfd[nfd].events = POLLIN;
nfd++;
}
write_pidfile(opt_pidfile);
while (safe_poll(pfd, nfd, -1) > 0) {
int i;
for (i = 0; i < nfd; i++) {
const char *event;
if (!(pfd[i].revents & POLLIN)) {
if (pfd[i].revents == 0)
continue; /* this fd has nothing */
/* Likely POLLERR, POLLHUP, POLLNVAL.
* Do not listen on this fd anymore.
*/
close(pfd[i].fd);
nfd--;
for (; i < nfd; i++)
pfd[i].fd = pfd[i + 1].fd;
break; /* do poll() again */
}
event = NULL;
if (option_mask32 & OPT_e) {
char *buf;
int len;
buf = xmalloc_reads(pfd[i].fd, NULL);
/* buf = "button/power PWRB 00000080 00000000" */
len = strlen(buf) - 9;
if (len >= 0)
buf[len] = '\0';
event = find_action(NULL, buf);
free(buf);
} else {
struct input_event ev;
if (sizeof(ev) != full_read(pfd[i].fd, &ev, sizeof(ev)))
continue;
if (ev.value != 1 && ev.value != 0)
continue;
event = find_action(&ev, NULL);
}
if (!event)
continue;
// spawn event handler
process_event(event);
}
}
if (ENABLE_FEATURE_CLEAN_UP) {
while (nfd--)
close(pfd[nfd].fd);
free(pfd);
}
remove_pidfile(opt_pidfile);
return EXIT_SUCCESS;
}
