}
/* Kernel threads have no argv[] */
- if (r == NULL || r[0] == 0) {
+ if (isempty(r)) {
_cleanup_free_ char *t = NULL;
int h;
case CURLY:
if (*e == '{') {
- if (!(k = strnappend(r, word, e-word-1)))
+ k = strnappend(r, word, e-word-1);
+ if (!k)
goto fail;
free(r);
state = VARIABLE;
} else if (*e == '$') {
- if (!(k = strnappend(r, word, e-word)))
+ k = strnappend(r, word, e-word);
+ if (!k)
goto fail;
free(r);
}
}
- if (!(k = strnappend(r, word, e-word)))
+ k = strnappend(r, word, e-word);
+ if (!k)
goto fail;
free(r);
int shall_restore_state(void) {
_cleanup_free_ char *line = NULL;
- const char *word, *state;
- size_t l;
+ const char *p;
int r;
r = proc_cmdline(&line);
if (r < 0)
return r;
- if (r == 0) /* Container ... */
- return 1;
r = 1;
+ p = line;
- FOREACH_WORD_QUOTED(word, l, line, state) {
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
const char *e;
- char n[l+1];
int k;
- memcpy(n, word, l);
- n[l] = 0;
+ k = unquote_first_word(&p, &word, true);
+ if (k < 0)
+ return k;
+ if (k == 0)
+ break;
- e = startswith(n, "systemd.restore_state=");
+ e = startswith(word, "systemd.restore_state=");
if (!e)
continue;
}
int proc_cmdline(char **ret) {
- int r;
-
- if (detect_container(NULL) > 0) {
- char *buf = NULL, *p;
- size_t sz = 0;
-
- r = read_full_file("/proc/1/cmdline", &buf, &sz);
- if (r < 0)
- return r;
-
- for (p = buf; p + 1 < buf + sz; p++)
- if (*p == 0)
- *p = ' ';
-
- *p = 0;
- *ret = buf;
- return 1;
- }
-
- r = read_one_line_file("/proc/cmdline", ret);
- if (r < 0)
- return r;
+ assert(ret);
- return 1;
+ if (detect_container(NULL) > 0)
+ return get_process_cmdline(1, 0, false, ret);
+ else
+ return read_one_line_file("/proc/cmdline", ret);
}
int parse_proc_cmdline(int (*parse_item)(const char *key, const char *value)) {
_cleanup_free_ char *line = NULL;
- const char *w, *state;
- size_t l;
+ const char *p;
int r;
assert(parse_item);
r = proc_cmdline(&line);
if (r < 0)
- log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
- if (r <= 0)
- return 0;
+ return r;
- FOREACH_WORD_QUOTED(w, l, line, state) {
- char word[l+1], *value;
+ p = line;
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
+ char *value = NULL;
- memcpy(word, w, l);
- word[l] = 0;
+ r = unquote_first_word(&p, &word, true);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
/* Filter out arguments that are intended only for the
* initrd */
int is_dir(const char* path, bool follow) {
struct stat st;
+ int r;
- if (follow) {
- if (stat(path, &st) < 0)
- return -errno;
- } else {
- if (lstat(path, &st) < 0)
- return -errno;
- }
+ if (follow)
+ r = stat(path, &st);
+ else
+ r = lstat(path, &st);
+ if (r < 0)
+ return -errno;
return !!S_ISDIR(st.st_mode);
}
-int unquote_first_word(const char **p, char **ret) {
+int unquote_first_word(const char **p, char **ret, bool relax) {
_cleanup_free_ char *s = NULL;
size_t allocated = 0, sz = 0;
break;
case VALUE_ESCAPE:
- if (c == 0)
+ if (c == 0) {
+ if (relax)
+ goto finish;
return -EINVAL;
+ }
if (!GREEDY_REALLOC(s, allocated, sz+2))
return -ENOMEM;
break;
case SINGLE_QUOTE:
- if (c == 0)
+ if (c == 0) {
+ if (relax)
+ goto finish;
return -EINVAL;
- else if (c == '\'')
+ } else if (c == '\'')
state = VALUE;
else if (c == '\\')
state = SINGLE_QUOTE_ESCAPE;
break;
case SINGLE_QUOTE_ESCAPE:
- if (c == 0)
+ if (c == 0) {
+ if (relax)
+ goto finish;
return -EINVAL;
+ }
if (!GREEDY_REALLOC(s, allocated, sz+2))
return -ENOMEM;
break;
case DOUBLE_QUOTE_ESCAPE:
- if (c == 0)
+ if (c == 0) {
+ if (relax)
+ goto finish;
return -EINVAL;
+ }
if (!GREEDY_REALLOC(s, allocated, sz+2))
return -ENOMEM;
l = newa0(char*, n);
for (c = 0; c < n; c++) {
- r = unquote_first_word(p, &l[c]);
+ r = unquote_first_word(p, &l[c], false);
if (r < 0) {
int j;