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-rw-r--r--src/shared/install.c3
-rw-r--r--src/shared/path-lookup.c186
-rw-r--r--src/shared/path-lookup.h2
-rw-r--r--src/shared/strv.c62
-rw-r--r--src/shared/strv.h4
5 files changed, 175 insertions, 82 deletions
diff --git a/src/shared/install.c b/src/shared/install.c
index d6644e580f..7e4f666952 100644
--- a/src/shared/install.c
+++ b/src/shared/install.c
@@ -60,7 +60,8 @@ static int lookup_paths_init_from_scope(LookupPaths *paths, UnitFileScope scope)
return lookup_paths_init(paths,
scope == UNIT_FILE_SYSTEM ? MANAGER_SYSTEM : MANAGER_USER,
- scope == UNIT_FILE_USER);
+ scope == UNIT_FILE_USER,
+ NULL, NULL, NULL);
}
static int get_config_path(UnitFileScope scope, bool runtime, const char *root_dir, char **ret) {
diff --git a/src/shared/path-lookup.c b/src/shared/path-lookup.c
index 41ebc7f5b3..32ddb38865 100644
--- a/src/shared/path-lookup.c
+++ b/src/shared/path-lookup.c
@@ -34,7 +34,8 @@
int user_config_home(char **config_home) {
const char *e;
- if ((e = getenv("XDG_CONFIG_HOME"))) {
+ e = getenv("XDG_CONFIG_HOME");
+ if (e) {
if (asprintf(config_home, "%s/systemd/user", e) < 0)
return -ENOMEM;
@@ -42,7 +43,8 @@ int user_config_home(char **config_home) {
} else {
const char *home;
- if ((home = getenv("HOME"))) {
+ home = getenv("HOME");
+ if (home) {
if (asprintf(config_home, "%s/.config/systemd/user", home) < 0)
return -ENOMEM;
@@ -53,7 +55,11 @@ int user_config_home(char **config_home) {
return 0;
}
-static char** user_dirs(void) {
+static char** user_dirs(
+ const char *generator,
+ const char *generator_early,
+ const char *generator_late) {
+
const char * const config_unit_paths[] = {
USER_CONFIG_UNIT_PATH,
"/etc/systemd/user",
@@ -89,15 +95,19 @@ static char** user_dirs(void) {
home = getenv("HOME");
- if ((e = getenv("XDG_CONFIG_DIRS")))
- if (!(config_dirs = strv_split(e, ":")))
+ e = getenv("XDG_CONFIG_DIRS");
+ if (e) {
+ config_dirs = strv_split(e, ":");
+ if (!config_dirs)
goto fail;
+ }
/* We don't treat /etc/xdg/systemd here as the spec
* suggests because we assume that that is a link to
* /etc/systemd/ anyway. */
- if ((e = getenv("XDG_DATA_HOME"))) {
+ e = getenv("XDG_DATA_HOME");
+ if (e) {
if (asprintf(&data_home, "%s/systemd/user", e) < 0)
goto fail;
@@ -116,57 +126,87 @@ static char** user_dirs(void) {
(void) symlink("../../../.config/systemd/user", data_home);
}
- if ((e = getenv("XDG_DATA_DIRS")))
+ e = getenv("XDG_DATA_DIRS");
+ if (e)
data_dirs = strv_split(e, ":");
else
data_dirs = strv_new("/usr/local/share",
"/usr/share",
NULL);
-
if (!data_dirs)
goto fail;
/* Now merge everything we found. */
+ if (generator_early) {
+ t = strv_append(r, generator_early);
+ if (!t)
+ goto fail;
+ strv_free(r);
+ r = t;
+ }
+
if (config_home) {
- if (!(t = strv_append(r, config_home)))
+ t = strv_append(r, config_home);
+ if (!t)
goto fail;
strv_free(r);
r = t;
}
if (!strv_isempty(config_dirs)) {
- if (!(t = strv_merge_concat(r, config_dirs, "/systemd/user")))
+ t = strv_merge_concat(r, config_dirs, "/systemd/user");
+ if (!t)
goto finish;
strv_free(r);
r = t;
}
- if (!(t = strv_merge(r, (char**) config_unit_paths)))
+ t = strv_merge(r, (char**) config_unit_paths);
+ if (!t)
goto fail;
strv_free(r);
r = t;
+ if (generator) {
+ t = strv_append(r, generator);
+ if (!t)
+ goto fail;
+ strv_free(r);
+ r = t;
+ }
+
if (data_home) {
- if (!(t = strv_append(r, data_home)))
+ t = strv_append(r, data_home);
+ if (!t)
goto fail;
strv_free(r);
r = t;
}
if (!strv_isempty(data_dirs)) {
- if (!(t = strv_merge_concat(r, data_dirs, "/systemd/user")))
+ t = strv_merge_concat(r, data_dirs, "/systemd/user");
+ if (!t)
goto fail;
strv_free(r);
r = t;
}
- if (!(t = strv_merge(r, (char**) data_unit_paths)))
+ t = strv_merge(r, (char**) data_unit_paths);
+ if (!t)
goto fail;
strv_free(r);
r = t;
+ if (generator_late) {
+ t = strv_append(r, generator_late);
+ if (!t)
+ goto fail;
+ strv_free(r);
+ r = t;
+ }
+
if (!path_strv_make_absolute_cwd(r))
- goto fail;
+ goto fail;
finish:
free(config_home);
@@ -182,7 +222,14 @@ fail:
goto finish;
}
-int lookup_paths_init(LookupPaths *p, ManagerRunningAs running_as, bool personal) {
+int lookup_paths_init(
+ LookupPaths *p,
+ ManagerRunningAs running_as,
+ bool personal,
+ const char *generator,
+ const char *generator_early,
+ const char *generator_late) {
+
const char *e;
char *t;
@@ -190,64 +237,83 @@ int lookup_paths_init(LookupPaths *p, ManagerRunningAs running_as, bool personal
/* First priority is whatever has been passed to us via env
* vars */
- if ((e = getenv("SYSTEMD_UNIT_PATH")))
- if (!(p->unit_path = path_split_and_make_absolute(e)))
+ e = getenv("SYSTEMD_UNIT_PATH");
+ if (e) {
+ p->unit_path = path_split_and_make_absolute(e);
+ if (!p->unit_path)
return -ENOMEM;
+ } else
+ p->unit_path = NULL;
if (strv_isempty(p->unit_path)) {
-
/* Nothing is set, so let's figure something out. */
strv_free(p->unit_path);
+ /* For the user units we include share/ in the search
+ * path in order to comply with the XDG basedir
+ * spec. For the system stuff we avoid such
+ * nonsense. OTOH we include /lib in the search path
+ * for the system stuff but avoid it for user
+ * stuff. */
+
if (running_as == MANAGER_USER) {
if (personal)
- p->unit_path = user_dirs();
+ p->unit_path = user_dirs(generator, generator_early, generator_late);
else
p->unit_path = strv_new(
/* If you modify this you also want to modify
* systemduserunitpath= in systemd.pc.in, and
* the arrays in user_dirs() above! */
+ STRV_IFNOTNULL(generator_early),
USER_CONFIG_UNIT_PATH,
"/etc/systemd/user",
"/run/systemd/user",
+ STRV_IFNOTNULL(generator),
"/usr/local/lib/systemd/user",
"/usr/local/share/systemd/user",
USER_DATA_UNIT_PATH,
"/usr/lib/systemd/user",
"/usr/share/systemd/user",
+ STRV_IFNOTNULL(generator_late),
NULL);
if (!p->unit_path)
return -ENOMEM;
- } else
- if (!(p->unit_path = strv_new(
- /* If you modify this you also want to modify
- * systemdsystemunitpath= in systemd.pc.in! */
- SYSTEM_CONFIG_UNIT_PATH,
- "/etc/systemd/system",
- "/run/systemd/system",
- "/usr/local/lib/systemd/system",
- SYSTEM_DATA_UNIT_PATH,
- "/usr/lib/systemd/system",
+ } else {
+ p->unit_path = strv_new(
+ /* If you modify this you also want to modify
+ * systemdsystemunitpath= in systemd.pc.in! */
+ STRV_IFNOTNULL(generator_early),
+ SYSTEM_CONFIG_UNIT_PATH,
+ "/etc/systemd/system",
+ "/run/systemd/system",
+ STRV_IFNOTNULL(generator),
+ "/usr/local/lib/systemd/system",
+ SYSTEM_DATA_UNIT_PATH,
+ "/usr/lib/systemd/system",
#ifdef HAVE_SPLIT_USR
- "/lib/systemd/system",
+ "/lib/systemd/system",
#endif
- NULL)))
+ STRV_IFNOTNULL(generator_late),
+ NULL);
+
+ if (!p->unit_path)
return -ENOMEM;
+ }
}
- if (p->unit_path)
- if (!path_strv_canonicalize(p->unit_path))
- return -ENOMEM;
+ if (!path_strv_canonicalize(p->unit_path))
+ return -ENOMEM;
strv_uniq(p->unit_path);
path_strv_remove_empty(p->unit_path);
if (!strv_isempty(p->unit_path)) {
- if (!(t = strv_join(p->unit_path, "\n\t")))
+ t = strv_join(p->unit_path, "\n\t");
+ if (!t)
return -ENOMEM;
log_debug("Looking for unit files in:\n\t%s", t);
free(t);
@@ -261,51 +327,58 @@ int lookup_paths_init(LookupPaths *p, ManagerRunningAs running_as, bool personal
#ifdef HAVE_SYSV_COMPAT
/* /etc/init.d/ compatibility does not matter to users */
- if ((e = getenv("SYSTEMD_SYSVINIT_PATH")))
- if (!(p->sysvinit_path = path_split_and_make_absolute(e)))
+ e = getenv("SYSTEMD_SYSVINIT_PATH");
+ if (e) {
+ p->sysvinit_path = path_split_and_make_absolute(e);
+ if (!p->sysvinit_path)
return -ENOMEM;
+ } else
+ p->sysvinit_path = NULL;
if (strv_isempty(p->sysvinit_path)) {
strv_free(p->sysvinit_path);
- if (!(p->sysvinit_path = strv_new(
- SYSTEM_SYSVINIT_PATH, /* /etc/init.d/ */
- NULL)))
+ p->sysvinit_path = strv_new(
+ SYSTEM_SYSVINIT_PATH, /* /etc/init.d/ */
+ NULL);
+ if (!p->sysvinit_path)
return -ENOMEM;
}
- if ((e = getenv("SYSTEMD_SYSVRCND_PATH")))
- if (!(p->sysvrcnd_path = path_split_and_make_absolute(e)))
+ e = getenv("SYSTEMD_SYSVRCND_PATH");
+ if (e) {
+ p->sysvrcnd_path = path_split_and_make_absolute(e);
+ if (!p->sysvrcnd_path)
return -ENOMEM;
+ } else
+ p->sysvrcnd_path = NULL;
if (strv_isempty(p->sysvrcnd_path)) {
strv_free(p->sysvrcnd_path);
- if (!(p->sysvrcnd_path = strv_new(
- SYSTEM_SYSVRCND_PATH, /* /etc/rcN.d/ */
- NULL)))
+ p->sysvrcnd_path = strv_new(
+ SYSTEM_SYSVRCND_PATH, /* /etc/rcN.d/ */
+ NULL);
+ if (!p->sysvrcnd_path)
return -ENOMEM;
}
- if (p->sysvinit_path)
- if (!path_strv_canonicalize(p->sysvinit_path))
- return -ENOMEM;
+ if (!path_strv_canonicalize(p->sysvinit_path))
+ return -ENOMEM;
- if (p->sysvrcnd_path)
- if (!path_strv_canonicalize(p->sysvrcnd_path))
- return -ENOMEM;
+ if (!path_strv_canonicalize(p->sysvrcnd_path))
+ return -ENOMEM;
strv_uniq(p->sysvinit_path);
strv_uniq(p->sysvrcnd_path);
-
path_strv_remove_empty(p->sysvinit_path);
path_strv_remove_empty(p->sysvrcnd_path);
if (!strv_isempty(p->sysvinit_path)) {
- if (!(t = strv_join(p->sysvinit_path, "\n\t")))
+ t = strv_join(p->sysvinit_path, "\n\t");
+ if (!t)
return -ENOMEM;
-
log_debug("Looking for SysV init scripts in:\n\t%s", t);
free(t);
} else {
@@ -316,7 +389,8 @@ int lookup_paths_init(LookupPaths *p, ManagerRunningAs running_as, bool personal
if (!strv_isempty(p->sysvrcnd_path)) {
- if (!(t = strv_join(p->sysvrcnd_path, "\n\t")))
+ t = strv_join(p->sysvrcnd_path, "\n\t");
+ if (!t)
return -ENOMEM;
log_debug("Looking for SysV rcN.d links in:\n\t%s", t);
diff --git a/src/shared/path-lookup.h b/src/shared/path-lookup.h
index e8a5a77a7b..96c49c2400 100644
--- a/src/shared/path-lookup.h
+++ b/src/shared/path-lookup.h
@@ -34,7 +34,7 @@ typedef struct LookupPaths {
int user_config_home(char **config_home);
-int lookup_paths_init(LookupPaths *p, ManagerRunningAs running_as, bool personal);
+int lookup_paths_init(LookupPaths *p, ManagerRunningAs running_as, bool personal, const char *generator, const char *generator_early, const char *generator_late);
void lookup_paths_free(LookupPaths *p);
#endif
diff --git a/src/shared/strv.c b/src/shared/strv.c
index 18de4f8391..c8d856344c 100644
--- a/src/shared/strv.c
+++ b/src/shared/strv.c
@@ -106,28 +106,44 @@ char **strv_new_ap(const char *x, va_list ap) {
unsigned n = 0, i = 0;
va_list aq;
+ /* As a special trick we ignore all listed strings that equal
+ * (const char*) -1. This is supposed to be used with the
+ * STRV_IFNOTNULL() macro to include possibly NULL strings in
+ * the string list. */
+
if (x) {
- n = 1;
+ n = x == (const char*) -1 ? 0 : 1;
va_copy(aq, ap);
- while (va_arg(aq, const char*))
+ while ((s = va_arg(aq, const char*))) {
+ if (s == (const char*) -1)
+ continue;
+
n++;
+ }
+
va_end(aq);
}
- if (!(a = new(char*, n+1)))
+ a = new(char*, n+1);
+ if (!a)
return NULL;
if (x) {
- if (!(a[i] = strdup(x))) {
- free(a);
- return NULL;
+ if (x != (const char*) -1) {
+ a[i] = strdup(x);
+ if (!a[i])
+ goto fail;
+ i++;
}
- i++;
-
while ((s = va_arg(ap, const char*))) {
- if (!(a[i] = strdup(s)))
+
+ if (s == (const char*) -1)
+ continue;
+
+ a[i] = strdup(s);
+ if (!a[i])
goto fail;
i++;
@@ -169,25 +185,27 @@ char **strv_merge(char **a, char **b) {
if (!b)
return strv_copy(a);
- if (!(r = new(char*, strv_length(a)+strv_length(b)+1)))
+ r = new(char*, strv_length(a) + strv_length(b) + 1);
+ if (!r)
return NULL;
- for (k = r; *a; k++, a++)
- if (!(*k = strdup(*a)))
+ for (k = r; *a; k++, a++) {
+ *k = strdup(*a);
+ if (!*k)
goto fail;
- for (; *b; k++, b++)
- if (!(*k = strdup(*b)))
+ }
+
+ for (; *b; k++, b++) {
+ *k = strdup(*b);
+ if (!*k)
goto fail;
+ }
*k = NULL;
return r;
fail:
- for (k--; k >= r; k--)
- free(*k);
-
- free(r);
-
+ strv_free(r);
return NULL;
}
@@ -221,11 +239,7 @@ char **strv_merge_concat(char **a, char **b, const char *suffix) {
return r;
fail:
- for (k--; k >= r; k--)
- free(*k);
-
- free(r);
-
+ strv_free(r);
return NULL;
}
diff --git a/src/shared/strv.h b/src/shared/strv.h
index afb31f385f..635e92b728 100644
--- a/src/shared/strv.h
+++ b/src/shared/strv.h
@@ -47,6 +47,10 @@ char **strv_uniq(char **l);
char **strv_new(const char *x, ...) _sentinel_ _malloc_;
char **strv_new_ap(const char *x, va_list ap) _malloc_;
+static inline const char* STRV_IFNOTNULL(const char *x) {
+ return x ? x : (const char *) -1;
+}
+
static inline bool strv_isempty(char **l) {
return !l || !*l;
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-10-18 03:37:10 +0000