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authorLennart Poettering <lennart@poettering.net>2013-09-17 11:02:02 -0500
committerLennart Poettering <lennart@poettering.net>2013-09-17 11:02:54 -0500
commit1731e34a4ebddf6e1247ad252c7a45c2c1163f42 (patch)
treeb7497dda00d6f96dd794a49c12befdc73bfb7520 /src/tmpfiles/tmpfiles.c
parentf485606bf8957d2954cf6fa5b0aabd5c39db15c1 (diff)
tmpfiles: support simple specifier expansion for specified paths
Diffstat (limited to 'src/tmpfiles/tmpfiles.c')
-rw-r--r--src/tmpfiles/tmpfiles.c51
1 files changed, 31 insertions, 20 deletions
diff --git a/src/tmpfiles/tmpfiles.c b/src/tmpfiles/tmpfiles.c
index 5eca82ad26..fb25b77b2b 100644
--- a/src/tmpfiles/tmpfiles.c
+++ b/src/tmpfiles/tmpfiles.c
@@ -51,6 +51,7 @@
#include "set.h"
#include "conf-files.h"
#include "capability.h"
+#include "specifier.h"
/* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates
* them in the file system. This is intended to be used to create
@@ -1038,10 +1039,19 @@ static bool should_include_path(const char *path) {
}
static int parse_line(const char *fname, unsigned line, const char *buffer) {
+
+ static const Specifier specifier_table[] = {
+ { 'm', specifier_machine_id, NULL },
+ { 'b', specifier_boot_id, NULL },
+ { 'H', specifier_host_name, NULL },
+ { 'v', specifier_kernel_release, NULL },
+ {}
+ };
+
_cleanup_item_free_ Item *i = NULL;
Item *existing;
_cleanup_free_ char
- *mode = NULL, *user = NULL, *group = NULL, *age = NULL;
+ *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL;
char type;
Hashmap *h;
int r, n = -1;
@@ -1050,14 +1060,10 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
assert(line >= 1);
assert(buffer);
- i = new0(Item, 1);
- if (!i)
- return log_oom();
-
r = sscanf(buffer,
"%c %ms %ms %ms %ms %ms %n",
&type,
- &i->path,
+ &path,
&mode,
&user,
&group,
@@ -1068,6 +1074,16 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
return -EIO;
}
+ i = new0(Item, 1);
+ if (!i)
+ return log_oom();
+
+ r = specifier_printf(path, specifier_table, NULL, &i->path);
+ if (r < 0) {
+ log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path);
+ return r;
+ }
+
if (n >= 0) {
n += strspn(buffer+n, WHITESPACE);
if (buffer[n] != 0 && (buffer[n] != '-' || buffer[n+1] != 0)) {
@@ -1307,11 +1323,12 @@ static int parse_argv(int argc, char *argv[]) {
}
static int read_config_file(const char *fn, bool ignore_enoent) {
- FILE *f;
- unsigned v = 0;
- int r;
+ _cleanup_fclose_ FILE *f = NULL;
+ char line[LINE_MAX];
Iterator iterator;
+ unsigned v = 0;
Item *i;
+ int r;
assert(fn);
@@ -1324,23 +1341,19 @@ static int read_config_file(const char *fn, bool ignore_enoent) {
return r;
}
- log_debug("apply: %s\n", fn);
- for (;;) {
- char line[LINE_MAX], *l;
+ FOREACH_LINE(line, f, break) {
+ char *l;
int k;
- if (!(fgets(line, sizeof(line), f)))
- break;
-
v++;
l = strstrip(line);
if (*l == '#' || *l == 0)
continue;
- if ((k = parse_line(fn, v, l)) < 0)
- if (r == 0)
- r = k;
+ k = parse_line(fn, v, l);
+ if (k < 0 && r == 0)
+ r = k;
}
/* we have to determine age parameter for each entry of type X */
@@ -1377,8 +1390,6 @@ static int read_config_file(const char *fn, bool ignore_enoent) {
r = -EIO;
}
- fclose(f);
-
return r;
}