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authorLennart Poettering <lennart@poettering.net>2016-02-29 20:41:54 +0100
committerLennart Poettering <lennart@poettering.net>2016-04-12 13:43:31 +0200
commit205dd21eccf6332fdb57f2d2ad9df70ab2c30cb1 (patch)
treeffb4dde90b649b457fb5da141abf4d2477dfcacb
parent7f8a0d7b416f893b3a2a1eefbe6aa8da9ea02117 (diff)
path-lookup: clean up user_config_home() and user_runtime_dir()
Let's modernize these calls a bit. Also, don't call them from user_dirs() anymore, as we already have both dirs in the list a second time via the persistent_config and runtime_config function parameters.
-rw-r--r--src/shared/path-lookup.c85
1 files changed, 37 insertions, 48 deletions
diff --git a/src/shared/path-lookup.c b/src/shared/path-lookup.c
index 22357e6392..17a9ca2aac 100644
--- a/src/shared/path-lookup.c
+++ b/src/shared/path-lookup.c
@@ -34,55 +34,57 @@
#include "strv.h"
#include "util.h"
-static int user_config_home(char **config_home) {
+static int user_config_home(char **ret) {
const char *e;
- char *r;
+ char *j;
+
+ assert(ret);
e = getenv("XDG_CONFIG_HOME");
if (e) {
- r = strappend(e, "/systemd/user");
- if (!r)
+ j = strappend(e, "/systemd/user");
+ if (!j)
return -ENOMEM;
- *config_home = r;
- return 1;
} else {
const char *home;
home = getenv("HOME");
- if (home) {
- r = strappend(home, "/.config/systemd/user");
- if (!r)
- return -ENOMEM;
+ if (!home)
+ return -ENXIO;
- *config_home = r;
- return 1;
- }
+ j = strappend(home, "/.config/systemd/user");
+ if (!j)
+ return -ENOMEM;
}
+ *ret = j;
return 0;
}
-static int user_runtime_dir(char **runtime_dir) {
+static int user_runtime_dir(char **ret) {
const char *e;
- char *r;
+ char *j;
+
+ assert(ret);
e = getenv("XDG_RUNTIME_DIR");
- if (e) {
- r = strappend(e, "/systemd/user");
- if (!r)
- return -ENOMEM;
+ if (!e)
+ return -ENXIO;
- *runtime_dir = r;
- return 1;
- }
+ j = strappend(e, "/systemd/user");
+ if (!j)
+ return -ENOMEM;
+ *ret = j;
return 0;
}
-static int user_data_home_dir(char **dir, const char *suffix) {
+static int user_data_home_dir(char **ret, const char *suffix) {
const char *e;
- char *res;
+ char *j;
+
+ assert(ret);
/* We don't treat /etc/xdg/systemd here as the spec
* suggests because we assume that that is a link to
@@ -90,20 +92,21 @@ static int user_data_home_dir(char **dir, const char *suffix) {
e = getenv("XDG_DATA_HOME");
if (e)
- res = strappend(e, suffix);
+ j = strappend(e, suffix);
else {
const char *home;
home = getenv("HOME");
- if (home)
- res = strjoin(home, "/.local/share", suffix, NULL);
- else
- return 0;
+ if (!home)
+ return -ENXIO;
+
+
+ j = strjoin(home, "/.local/share", suffix, NULL);
}
- if (!res)
+ if (!j)
return -ENOMEM;
- *dir = res;
+ *ret = j;
return 1;
}
@@ -131,8 +134,8 @@ static char** user_dirs(
};
const char *e;
- _cleanup_free_ char *config_home = NULL, *runtime_dir = NULL, *data_home = NULL;
_cleanup_strv_free_ char **config_dirs = NULL, **data_dirs = NULL;
+ _cleanup_free_ char *data_home = NULL;
_cleanup_free_ char **res = NULL;
char **tmp;
int r;
@@ -146,12 +149,6 @@ static char** user_dirs(
* as data, and allow overriding as configuration.
*/
- if (user_config_home(&config_home) < 0)
- return NULL;
-
- if (user_runtime_dir(&runtime_dir) < 0)
- return NULL;
-
e = getenv("XDG_CONFIG_DIRS");
if (e) {
config_dirs = strv_split(e, ":");
@@ -160,7 +157,7 @@ static char** user_dirs(
}
r = user_data_home_dir(&data_home, "/systemd/user");
- if (r < 0)
+ if (r < 0 && r != -ENXIO)
return NULL;
e = getenv("XDG_DATA_DIRS");
@@ -182,10 +179,6 @@ static char** user_dirs(
if (strv_extend(&res, generator_early) < 0)
return NULL;
- if (config_home)
- if (strv_extend(&res, config_home) < 0)
- return NULL;
-
if (!strv_isempty(config_dirs))
if (strv_extend_strv_concat(&res, config_dirs, "/systemd/user") < 0)
return NULL;
@@ -196,10 +189,6 @@ static char** user_dirs(
if (strv_extend_strv(&res, (char**) config_unit_paths, false) < 0)
return NULL;
- if (runtime_dir)
- if (strv_extend(&res, runtime_dir) < 0)
- return NULL;
-
if (strv_extend(&res, runtime_config) < 0)
return NULL;
@@ -463,7 +452,7 @@ int lookup_paths_init(
}
r = acquire_config_dirs(scope, &persistent_config, &runtime_config);
- if (r < 0)
+ if (r < 0 && r != -ENXIO)
return r;
r = acquire_generator_dirs(scope, &generator, &generator_early, &generator_late);