X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Futil.c;h=ba86d206150cc92e0b43954d12dfb6d21404e1e6;hb=f32d2db140150b9d38684a699c9875b6e24ca27c;hp=dc1bc39ac710b50f4f52cd171674bd053d3b20ae;hpb=0c2576ef74a9f9b96519cdcb7f9c01742d8255e2;p=elogind.git

diff --git a/src/shared/util.c b/src/shared/util.c
index dc1bc39ac..ba86d2061 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -6146,27 +6146,28 @@ int split_pair(const char *s, const char *sep, char **l, char **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;
 
@@ -6179,51 +6180,35 @@ int shall_restore_state(void) {
 }
 
 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 */
@@ -6999,7 +6984,7 @@ int is_dir(const char* path, bool follow) {
         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;
 
@@ -7058,8 +7043,11 @@ int unquote_first_word(const char **p, char **ret) {
                         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;
@@ -7070,9 +7058,11 @@ int unquote_first_word(const char **p, char **ret) {
                         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;
@@ -7086,8 +7076,11 @@ int unquote_first_word(const char **p, char **ret) {
                         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;
@@ -7113,8 +7106,11 @@ int unquote_first_word(const char **p, char **ret) {
                         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;
@@ -7174,7 +7170,7 @@ int unquote_many_words(const char **p, ...) {
         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;