util-lib: move /proc/cmdline parsing code to proc-cmdline.[ch]

6 files changed, 175 insertions, 121 deletions

diff --git a/src/basic/cgroup-util.c b/src/basic/cgroup-util.c
index d416b0b41e..cfbeab7411 100644
--- a/src/basic/cgroup-util.c
+++ b/src/basic/cgroup-util.c
@@ -49,6 +49,7 @@
 #include "unit-name.h"
 #include "user-util.h"
 #include "util.h"
+#include "proc-cmdline.h"
 
 int cg_enumerate_processes(const char *controller, const char *path, FILE **_f) {
         _cleanup_free_ char *fs = NULL;
diff --git a/src/basic/log.c b/src/basic/log.c
index dcb24cfab7..d0db77eca0 100644
--- a/src/basic/log.c
+++ b/src/basic/log.c
@@ -36,6 +36,8 @@
 #include "log.h"
 #include "macro.h"
 #include "missing.h"
+#include "parse-util.h"
+#include "proc-cmdline.h"
 #include "process-util.h"
 #include "signal-util.h"
 #include "socket-util.h"
@@ -43,7 +45,6 @@
 #include "string-util.h"
 #include "terminal-util.h"
 #include "util.h"
-#include "parse-util.h"
 
 #define SNDBUF_SIZE (8*1024*1024)
 
diff --git a/src/basic/proc-cmdline.c b/src/basic/proc-cmdline.c
new file mode 100644
index 0000000000..dd0e18ed6e
--- /dev/null
+++ b/src/basic/proc-cmdline.c
@@ -0,0 +1,144 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+  This file is part of systemd.
+
+  Copyright 2010 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "extract-word.h"
+#include "fileio.h"
+#include "macro.h"
+#include "parse-util.h"
+#include "proc-cmdline.h"
+#include "process-util.h"
+#include "string-util.h"
+#include "util.h"
+#include "virt.h"
+
+int proc_cmdline(char **ret) {
+        assert(ret);
+
+        if (detect_container() > 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 *p;
+        int r;
+
+        assert(parse_item);
+
+        r = proc_cmdline(&line);
+        if (r < 0)
+                return r;
+
+        p = line;
+        for (;;) {
+                _cleanup_free_ char *word = NULL;
+                char *value = NULL;
+
+                r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX);
+                if (r < 0)
+                        return r;
+                if (r == 0)
+                        break;
+
+                /* Filter out arguments that are intended only for the
+                 * initrd */
+                if (!in_initrd() && startswith(word, "rd."))
+                        continue;
+
+                value = strchr(word, '=');
+                if (value)
+                        *(value++) = 0;
+
+                r = parse_item(word, value);
+                if (r < 0)
+                        return r;
+        }
+
+        return 0;
+}
+
+int get_proc_cmdline_key(const char *key, char **value) {
+        _cleanup_free_ char *line = NULL, *ret = NULL;
+        bool found = false;
+        const char *p;
+        int r;
+
+        assert(key);
+
+        r = proc_cmdline(&line);
+        if (r < 0)
+                return r;
+
+        p = line;
+        for (;;) {
+                _cleanup_free_ char *word = NULL;
+                const char *e;
+
+                r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX);
+                if (r < 0)
+                        return r;
+                if (r == 0)
+                        break;
+
+                /* Filter out arguments that are intended only for the
+                 * initrd */
+                if (!in_initrd() && startswith(word, "rd."))
+                        continue;
+
+                if (value) {
+                        e = startswith(word, key);
+                        if (!e)
+                                continue;
+
+                        r = free_and_strdup(&ret, e);
+                        if (r < 0)
+                                return r;
+
+                        found = true;
+                } else {
+                        if (streq(word, key))
+                                found = true;
+                }
+        }
+
+        if (value) {
+                *value = ret;
+                ret = NULL;
+        }
+
+        return found;
+
+}
+
+int shall_restore_state(void) {
+        _cleanup_free_ char *value = NULL;
+        int r;
+
+        r = get_proc_cmdline_key("systemd.restore_state=", &value);
+        if (r < 0)
+                return r;
+        if (r == 0)
+                return true;
+
+        return parse_boolean(value) != 0;
+}
diff --git a/src/basic/proc-cmdline.h b/src/basic/proc-cmdline.h
new file mode 100644
index 0000000000..ea8277b053
--- /dev/null
+++ b/src/basic/proc-cmdline.h
@@ -0,0 +1,28 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+  This file is part of systemd.
+
+  Copyright 2010 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+int proc_cmdline(char **ret);
+int parse_proc_cmdline(int (*parse_word)(const char *key, const char *value));
+int get_proc_cmdline_key(const char *parameter, char **value);
+
+int shall_restore_state(void);
diff --git a/src/basic/util.c b/src/basic/util.c
index 6fe4f47018..66bb00b982 100644
--- a/src/basic/util.c
+++ b/src/basic/util.c
@@ -963,120 +963,6 @@ bool id128_is_valid(const char *s) {
         return true;
 }
 
-int shall_restore_state(void) {
-        _cleanup_free_ char *value = NULL;
-        int r;
-
-        r = get_proc_cmdline_key("systemd.restore_state=", &value);
-        if (r < 0)
-                return r;
-        if (r == 0)
-                return true;
-
-        return parse_boolean(value) != 0;
-}
-
-int proc_cmdline(char **ret) {
-        assert(ret);
-
-        if (detect_container() > 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 *p;
-        int r;
-
-        assert(parse_item);
-
-        r = proc_cmdline(&line);
-        if (r < 0)
-                return r;
-
-        p = line;
-        for (;;) {
-                _cleanup_free_ char *word = NULL;
-                char *value = NULL;
-
-                r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX);
-                if (r < 0)
-                        return r;
-                if (r == 0)
-                        break;
-
-                /* Filter out arguments that are intended only for the
-                 * initrd */
-                if (!in_initrd() && startswith(word, "rd."))
-                        continue;
-
-                value = strchr(word, '=');
-                if (value)
-                        *(value++) = 0;
-
-                r = parse_item(word, value);
-                if (r < 0)
-                        return r;
-        }
-
-        return 0;
-}
-
-int get_proc_cmdline_key(const char *key, char **value) {
-        _cleanup_free_ char *line = NULL, *ret = NULL;
-        bool found = false;
-        const char *p;
-        int r;
-
-        assert(key);
-
-        r = proc_cmdline(&line);
-        if (r < 0)
-                return r;
-
-        p = line;
-        for (;;) {
-                _cleanup_free_ char *word = NULL;
-                const char *e;
-
-                r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX);
-                if (r < 0)
-                        return r;
-                if (r == 0)
-                        break;
-
-                /* Filter out arguments that are intended only for the
-                 * initrd */
-                if (!in_initrd() && startswith(word, "rd."))
-                        continue;
-
-                if (value) {
-                        e = startswith(word, key);
-                        if (!e)
-                                continue;
-
-                        r = free_and_strdup(&ret, e);
-                        if (r < 0)
-                                return r;
-
-                        found = true;
-                } else {
-                        if (streq(word, key))
-                                found = true;
-                }
-        }
-
-        if (value) {
-                *value = ret;
-                ret = NULL;
-        }
-
-        return found;
-
-}
-
 int container_get_leader(const char *machine, pid_t *pid) {
         _cleanup_free_ char *s = NULL, *class = NULL;
         const char *p;
diff --git a/src/basic/util.h b/src/basic/util.h
index 96be6ecaa8..2ebb275494 100644
--- a/src/basic/util.h
+++ b/src/basic/util.h
@@ -288,8 +288,6 @@ static inline unsigned log2u_round_up(unsigned x) {
 
 bool id128_is_valid(const char *s) _pure_;
 
-int shall_restore_state(void);
-
 /**
  * Normal qsort requires base to be nonnull. Here were require
  * that only if nmemb > 0.
@@ -302,10 +300,6 @@ static inline void qsort_safe(void *base, size_t nmemb, size_t size, comparison_
         qsort(base, nmemb, size, compar);
 }
 
-int proc_cmdline(char **ret);
-int parse_proc_cmdline(int (*parse_word)(const char *key, const char *value));
-int get_proc_cmdline_key(const char *parameter, char **value);
-
 int container_get_leader(const char *machine, pid_t *pid);
 
 int namespace_open(pid_t pid, int *pidns_fd, int *mntns_fd, int *netns_fd, int *userns_fd, int *root_fd);