return l;
}
+char **strv_path_remove_empty(char **l) {
+ char **f, **t;
+
+ if (!l)
+ return NULL;
+
+ for (f = t = l; *f; f++) {
+
+ if (dir_is_empty(*f) > 0) {
+ free(*f);
+ continue;
+ }
+
+ *(t++) = *f;
+ }
+
+ *t = NULL;
+ return l;
+}
+
int reset_all_signal_handlers(void) {
int sig;
}
}
-int reset_terminal(int fd) {
+int reset_terminal_fd(int fd) {
struct termios termios;
int r = 0;
long arg;
return r;
}
+int reset_terminal(const char *name) {
+ int fd, r;
+
+ fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC);
+ if (fd < 0)
+ return fd;
+
+ r = reset_terminal_fd(fd);
+ close_nointr_nofail(fd);
+
+ return r;
+}
+
int open_terminal(const char *name, int mode) {
int fd, r;
unsigned c = 0;
/* We pass here O_NOCTTY only so that we can check the return
* value TIOCSCTTY and have a reliable way to figure out if we
* successfully became the controlling process of the tty */
- if ((fd = open_terminal(name, O_RDWR|O_NOCTTY)) < 0)
- return -errno;
+ if ((fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC)) < 0)
+ return fd;
/* First, try to get the tty */
r = ioctl(fd, TIOCSCTTY, force);
if (notify >= 0)
close_nointr_nofail(notify);
- if ((r = reset_terminal(fd)) < 0)
+ if ((r = reset_terminal_fd(fd)) < 0)
log_warning("Failed to reset terminal: %s", strerror(-r));
return fd;
: "0" (eax)
);
- hypervisor = !!(ecx & ecx & 0x80000000U);
+ hypervisor = !!(ecx & 0x80000000U);
if (hypervisor) {
return s;
}
+int terminal_vhangup_fd(int fd) {
+ if (ioctl(fd, TIOCVHANGUP) < 0)
+ return -errno;
+
+ return 0;
+}
+
+int terminal_vhangup(const char *name) {
+ int fd, r;
+
+ fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC);
+ if (fd < 0)
+ return fd;
+
+ r = terminal_vhangup_fd(fd);
+ close_nointr_nofail(fd);
+
+ return r;
+}
+
+int vt_disallocate(const char *name) {
+ int fd, r;
+ unsigned u;
+ int temporary_vt, temporary_fd;
+ char tpath[64];
+ struct vt_stat vt_stat;
+
+ /* Deallocate the VT if possible. If not possible
+ * (i.e. because it is the active one), at least clear it
+ * entirely (including the scrollback buffer) */
+
+ if (!tty_is_vc(name))
+ return -EIO;
+
+ if (!startswith(name, "/dev/tty"))
+ return -EINVAL;
+
+ r = safe_atou(name+8, &u);
+ if (r < 0)
+ return r;
+
+ if (u <= 0)
+ return -EIO;
+
+ fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC);
+ if (fd < 0)
+ return fd;
+
+ r = ioctl(fd, VT_DISALLOCATE, u);
+ if (r >= 0) {
+ close_nointr_nofail(fd);
+ return 0;
+ }
+
+ if (errno != EBUSY) {
+ close_nointr_nofail(fd);
+ return -errno;
+ }
+
+ if (ioctl(fd, VT_GETSTATE, &vt_stat) < 0) {
+ close_nointr_nofail(fd);
+ return -errno;
+ }
+
+ if (u != vt_stat.v_active) {
+ close_nointr_nofail(fd);
+ return -EBUSY;
+ }
+
+ if (ioctl(fd, VT_OPENQRY, &temporary_vt) < 0) {
+ close_nointr_nofail(fd);
+ return -errno;
+ }
+
+ if (temporary_vt <= 0) {
+ close_nointr_nofail(fd);
+ return -EIO;
+ }
+
+ /* Switch to temporary VT */
+ snprintf(tpath, sizeof(tpath), "/dev/tty%i", temporary_vt);
+ char_array_0(tpath);
+ temporary_fd = open_terminal(tpath, O_RDWR|O_NOCTTY|O_CLOEXEC);
+ ioctl(fd, VT_ACTIVATE, temporary_vt);
+ if (temporary_fd >= 0)
+ close_nointr_nofail(temporary_fd);
+
+ /* Reopen /dev/tty0 */
+ close_nointr_nofail(fd);
+ fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC);
+ if (fd < 0)
+ r = -errno;
+ else {
+ /* Disallocate the real VT */
+ if (ioctl(fd, VT_DISALLOCATE, u) < 0)
+ r = -errno;
+ else
+ r = 0;
+ }
+
+ /* Recreate original VT */
+ temporary_fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC);
+
+ if (temporary_fd >= 0) {
+ loop_write(temporary_fd, "\033[H\033[2J", 7, false); /* clear screen explicitly */
+ close_nointr_nofail(temporary_fd);
+ }
+
+ /* Switch back to original VT */
+ if (fd >= 0) {
+ ioctl(fd, VT_ACTIVATE, vt_stat.v_active);
+ close_nointr_nofail(fd);
+ }
+
+ return r;
+}
+
static const char *const ioprio_class_table[] = {
[IOPRIO_CLASS_NONE] = "none",
[IOPRIO_CLASS_RT] = "realtime",
};
DEFINE_STRING_TABLE_LOOKUP(signal, int);
+
+static int file_is_conf(const struct dirent *d, const char *suffix) {
+ assert(d);
+
+ if (ignore_file(d->d_name))
+ return 0;
+
+ if (d->d_type != DT_REG &&
+ d->d_type != DT_LNK &&
+ d->d_type != DT_UNKNOWN)
+ return 0;
+
+ return endswith(d->d_name, suffix);
+}
+
+static int files_add(Hashmap *h, const char *path, const char *suffix) {
+ DIR *dir;
+ struct dirent *de;
+ int r = 0;
+
+ dir = opendir(path);
+ if (!dir) {
+ if (errno == ENOENT)
+ return 0;
+ return -errno;
+ }
+
+ for (de = readdir(dir); de; de = readdir(dir)) {
+ char *p, *f;
+ const char *base;
+
+ if (!file_is_conf(de, suffix))
+ continue;
+
+ if (asprintf(&p, "%s/%s", path, de->d_name) < 0) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ f = canonicalize_file_name(p);
+ if (!f) {
+ log_error("Failed to canonicalize file name '%s': %m", p);
+ free(p);
+ continue;
+ }
+ free(p);
+
+ log_debug("found: %s\n", f);
+ base = f + strlen(path) + 1;
+ if (hashmap_put(h, base, f) <= 0)
+ free(f);
+ }
+
+finish:
+ closedir(dir);
+ return r;
+}
+
+static int base_cmp(const void *a, const void *b) {
+ const char *s1, *s2;
+
+ s1 = *(char * const *)a;
+ s2 = *(char * const *)b;
+ return strcmp(file_name_from_path(s1), file_name_from_path(s2));
+}
+
+int conf_files_list(char ***strv, const char *suffix, const char *dir, ...) {
+ Hashmap *fh = NULL;
+ char **dirs = NULL;
+ char **files = NULL;
+ char **p;
+ va_list ap;
+ int r = 0;
+
+ va_start(ap, dir);
+ dirs = strv_new_ap(dir, ap);
+ va_end(ap);
+ if (!dirs) {
+ r = -ENOMEM;
+ goto finish;
+ }
+ if (!strv_path_canonicalize(dirs)) {
+ r = -ENOMEM;
+ goto finish;
+ }
+ if (!strv_uniq(dirs)) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ fh = hashmap_new(string_hash_func, string_compare_func);
+ if (!fh) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ STRV_FOREACH(p, dirs) {
+ if (files_add(fh, *p, suffix) < 0) {
+ log_error("Failed to search for files.");
+ r = -EINVAL;
+ goto finish;
+ }
+ }
+
+ files = hashmap_get_strv(fh);
+ if (files == NULL) {
+ log_error("Failed to compose list of files.");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ qsort(files, hashmap_size(fh), sizeof(char *), base_cmp);
+finish:
+ strv_free(dirs);
+ hashmap_free(fh);
+ *strv = files;
+ return r;
+}
~ianmdlvl / elogind.git / blobdiff