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-rw-r--r--src/core/load-fragment.c184
-rw-r--r--src/core/service.c6
-rw-r--r--src/core/socket.c6
-rw-r--r--src/core/unit-printf.c200
-rw-r--r--src/core/unit-printf.h6
-rw-r--r--src/shared/install-printf.c54
-rw-r--r--src/shared/install-printf.h2
-rw-r--r--src/shared/install.c25
-rw-r--r--src/shared/specifier.c105
-rw-r--r--src/shared/specifier.h14
-rw-r--r--src/test/test-strv.c16
-rw-r--r--src/test/test-unit-file.c7
-rw-r--r--src/test/test-unit-name.c8
13 files changed, 395 insertions, 238 deletions
diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
index f4a268c1ef..cfc6f078a6 100644
--- a/src/core/load-fragment.c
+++ b/src/core/load-fragment.c
@@ -99,9 +99,12 @@ int config_parse_unit_deps(const char* unit,
if (!t)
return log_oom();
- k = unit_name_printf(u, t);
- if (!k)
- return log_oom();
+ r = unit_name_printf(u, t, &k);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, -r,
+ "Failed to resolve specifiers, ignoring: %s", strerror(-r));
+ continue;
+ }
r = unit_add_dependency_by_name(u, d, k, NULL, true);
if (r < 0)
@@ -124,16 +127,17 @@ int config_parse_unit_string_printf(const char *unit,
Unit *u = userdata;
_cleanup_free_ char *k = NULL;
+ int r;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(u);
- k = unit_full_printf(u, rvalue);
- if (!k)
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
+ r = unit_full_printf(u, rvalue, &k);
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, -r,
+ "Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r));
return config_parse_string(unit, filename, line, section, lvalue, ltype,
k ? k : rvalue, data, userdata);
@@ -151,16 +155,17 @@ int config_parse_unit_strv_printf(const char *unit,
Unit *u = userdata;
_cleanup_free_ char *k = NULL;
+ int r;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(u);
- k = unit_full_printf(u, rvalue);
- if (!k)
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
+ r = unit_full_printf(u, rvalue, &k);
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, -r,
+ "Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r));
return config_parse_strv(unit, filename, line, section, lvalue, ltype,
k ? k : rvalue, data, userdata);
@@ -178,16 +183,17 @@ int config_parse_unit_path_printf(const char *unit,
Unit *u = userdata;
_cleanup_free_ char *k = NULL;
+ int r;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(u);
- k = unit_full_printf(u, rvalue);
- if (!k)
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
+ r = unit_full_printf(u, rvalue, &k);
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, -r,
+ "Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r));
return config_parse_path(unit, filename, line, section, lvalue, ltype,
k ? k : rvalue, data, userdata);
@@ -205,6 +211,7 @@ int config_parse_socket_listen(const char *unit,
SocketPort *p, *tail;
Socket *s;
+ int r;
assert(filename);
assert(lvalue);
@@ -226,32 +233,31 @@ int config_parse_socket_listen(const char *unit,
if (ltype != SOCKET_SOCKET) {
p->type = ltype;
- p->path = unit_full_printf(UNIT(s), rvalue);
- if (!p->path) {
+ r = unit_full_printf(UNIT(s), rvalue, &p->path);
+ if (r < 0) {
p->path = strdup(rvalue);
if (!p->path) {
free(p);
return log_oom();
} else
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
+ log_syntax(unit, LOG_ERR, filename, line, -r,
+ "Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r));
}
path_kill_slashes(p->path);
} else if (streq(lvalue, "ListenNetlink")) {
_cleanup_free_ char *k = NULL;
- int r;
p->type = SOCKET_SOCKET;
- k = unit_full_printf(UNIT(s), rvalue);
- if (!k)
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
+ r = unit_full_printf(UNIT(s), rvalue, &k);
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, -r,
+ "Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r));
r = socket_address_parse_netlink(&p->address, k ? k : rvalue);
if (r < 0) {
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ log_syntax(unit, LOG_ERR, filename, line, -r,
"Failed to parse address value, ignoring: %s", rvalue);
free(p);
return 0;
@@ -259,17 +265,16 @@ int config_parse_socket_listen(const char *unit,
} else {
_cleanup_free_ char *k = NULL;
- int r;
p->type = SOCKET_SOCKET;
- k = unit_full_printf(UNIT(s), rvalue);
- if (!k)
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
+ r = unit_full_printf(UNIT(s), rvalue, &k);
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, -r,
+ "Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r));
r = socket_address_parse(&p->address, k ? k : rvalue);
if (r < 0) {
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ log_syntax(unit, LOG_ERR, filename, line, -r,
"Failed to parse address value, ignoring: %s", rvalue);
free(p);
return 0;
@@ -1230,11 +1235,12 @@ int config_parse_trigger_unit(
return 0;
}
- p = unit_name_printf(u, rvalue);
- if (!p)
- return log_oom();
+ r = unit_name_printf(u, rvalue, &p);
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, -r,
+ "Failed to resolve specifiers, ignoring: %s", strerror(-r));
- type = unit_name_to_type(p);
+ type = unit_name_to_type(p ?: rvalue);
if (type < 0) {
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
"Unit type not valid, ignoring: %s", rvalue);
@@ -1247,10 +1253,10 @@ int config_parse_trigger_unit(
return 0;
}
- r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_TRIGGERS, p, NULL, true);
+ r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_TRIGGERS, p ?: rvalue, NULL, true);
if (r < 0) {
log_syntax(unit, LOG_ERR, filename, line, -r,
- "Failed to add trigger on %s, ignoring: %s", p, strerror(-r));
+ "Failed to add trigger on %s, ignoring: %s", p ?: rvalue, strerror(-r));
return 0;
}
@@ -1271,6 +1277,7 @@ int config_parse_path_spec(const char *unit,
PathSpec *s;
PathType b;
_cleanup_free_ char *k = NULL;
+ int r;
assert(filename);
assert(lvalue);
@@ -1290,13 +1297,13 @@ int config_parse_path_spec(const char *unit,
return 0;
}
- k = unit_full_printf(UNIT(p), rvalue);
- if (!k) {
+ r = unit_full_printf(UNIT(p), rvalue, &k);
+ if (r < 0) {
k = strdup(rvalue);
if (!k)
return log_oom();
else
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ log_syntax(unit, LOG_ERR, filename, line, -r,
"Failed to resolve unit specifiers on %s. Ignoring.",
rvalue);
}
@@ -1344,19 +1351,20 @@ int config_parse_socket_service(const char *unit,
dbus_error_init(&error);
- p = unit_name_printf(UNIT(s), rvalue);
- if (!p)
- return log_oom();
+ r = unit_name_printf(UNIT(s), rvalue, &p);
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, -r,
+ "Failed to resolve specifiers, ignoring: %s", rvalue);
- if (!endswith(p, ".service")) {
+ if (!endswith(p ?: rvalue, ".service")) {
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
"Unit must be of type service, ignoring: %s", rvalue);
return 0;
}
- r = manager_load_unit(UNIT(s)->manager, p, NULL, &error, &x);
+ r = manager_load_unit(UNIT(s)->manager, p ?: rvalue, NULL, &error, &x);
if (r < 0) {
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ log_syntax(unit, LOG_ERR, filename, line, r,
"Failed to load unit %s, ignoring: %s",
rvalue, bus_error(&error, r));
dbus_error_free(&error);
@@ -1395,23 +1403,24 @@ int config_parse_service_sockets(const char *unit,
if (!t)
return log_oom();
- k = unit_name_printf(UNIT(s), t);
- if (!k)
- return log_oom();
+ r = unit_name_printf(UNIT(s), t, &k);
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, -r,
+ "Failed to resolve specifiers, ignoring: %s", strerror(-r));
- if (!endswith(k, ".socket")) {
+ if (!endswith(k ?: t, ".socket")) {
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Unit must be of type socket, ignoring: %s", k);
+ "Unit must be of type socket, ignoring: %s", k ?: t);
continue;
}
- r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_WANTS, UNIT_AFTER, k, NULL, true);
+ r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_WANTS, UNIT_AFTER, k ?: t, NULL, true);
if (r < 0)
log_syntax(unit, LOG_ERR, filename, line, -r,
"Failed to add dependency on %s, ignoring: %s",
- k, strerror(-r));
+ k ?: t, strerror(-r));
- r = unit_add_dependency_by_name(UNIT(s), UNIT_TRIGGERED_BY, k, NULL, true);
+ r = unit_add_dependency_by_name(UNIT(s), UNIT_TRIGGERED_BY, k ?: t, NULL, true);
if (r < 0)
return r;
}
@@ -1463,7 +1472,8 @@ int config_parse_unit_env_file(const char *unit,
char ***env = data;
Unit *u = userdata;
- _cleanup_free_ char *s = NULL;
+ _cleanup_free_ char *n = NULL;
+ const char *s;
int r;
assert(filename);
@@ -1478,10 +1488,12 @@ int config_parse_unit_env_file(const char *unit,
return 0;
}
- s = unit_full_printf(u, rvalue);
- if (!s)
- return log_oom();
+ r = unit_full_printf(u, rvalue, &n);
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Failed to resolve specifiers, ignoring: %s", rvalue);
+ s = n ?: rvalue;
if (!path_is_absolute(s[0] == '-' ? s + 1 : s)) {
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
"Path '%s' is not absolute, ignoring.", s);
@@ -1509,6 +1521,7 @@ int config_parse_environ(const char *unit,
char*** env = data, *w, *state;
size_t l;
_cleanup_free_ char *k = NULL;
+ int r;
assert(filename);
assert(lvalue);
@@ -1522,12 +1535,16 @@ int config_parse_environ(const char *unit,
return 0;
}
- if (u)
- k = unit_full_printf(u, rvalue);
- else
- k = strdup(rvalue);
+ if (u) {
+ r = unit_full_printf(u, rvalue, &k);
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, -r,
+ "Failed to resolve specifiers, ignoring: %s", rvalue);
+ }
if (!k)
+ k = strdup(rvalue);
+ if (!k)
return log_oom();
FOREACH_WORD_QUOTED(w, l, k, state) {
@@ -1598,6 +1615,7 @@ int config_parse_unit_condition_path(const char *unit,
bool trigger, negate;
Condition *c;
_cleanup_free_ char *p = NULL;
+ int r;
assert(filename);
assert(lvalue);
@@ -1619,9 +1637,15 @@ int config_parse_unit_condition_path(const char *unit,
if (negate)
rvalue++;
- p = unit_full_printf(u, rvalue);
- if (!p)
- return log_oom();
+ r = unit_full_printf(u, rvalue, &p);
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, -r,
+ "Failed to resolve specifiers, ignoring: %s", rvalue);
+ if (!p) {
+ p = strdup(rvalue);
+ if (!p)
+ return log_oom();
+ }
if (!path_is_absolute(p)) {
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
@@ -1652,6 +1676,7 @@ int config_parse_unit_condition_string(const char *unit,
bool trigger, negate;
Condition *c;
_cleanup_free_ char *s = NULL;
+ int r;
assert(filename);
assert(lvalue);
@@ -1673,9 +1698,15 @@ int config_parse_unit_condition_string(const char *unit,
if (negate)
rvalue++;
- s = unit_full_printf(u, rvalue);
- if (!s)
- return log_oom();
+ r = unit_full_printf(u, rvalue, &s);
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, -r,
+ "Failed to resolve specifiers, ignoring: %s", rvalue);
+ if (!s) {
+ s = strdup(rvalue);
+ if (!s)
+ return log_oom();
+ }
c = condition_new(cond, s, trigger, negate);
if (!c)
@@ -1929,21 +1960,26 @@ int config_parse_unit_slice(
assert(rvalue);
assert(u);
- k = unit_name_printf(u, rvalue);
- if (!k)
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ r = unit_name_printf(u, rvalue, &k);
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, -r,
"Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
+ if (!k) {
+ k = strdup(rvalue);
+ if (!k)
+ return log_oom();
+ }
- r = manager_load_unit(u->manager, k ? k : rvalue, NULL, NULL, &slice);
+ r = manager_load_unit(u->manager, k, NULL, NULL, &slice);
if (r < 0) {
log_syntax(unit, LOG_ERR, filename, line, -r,
- "Failed to load slice unit %s. Ignoring.", k ? k : rvalue);
+ "Failed to load slice unit %s. Ignoring.", k);
return 0;
}
if (slice->type != UNIT_SLICE) {
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Slice unit %s is not a slice. Ignoring.", k ? k : rvalue);
+ "Slice unit %s is not a slice. Ignoring.", k);
return 0;
}
diff --git a/src/core/service.c b/src/core/service.c
index 246a86e23f..cc61b546fc 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -1765,11 +1765,9 @@ static int service_spawn(
} else
unit_unwatch_timer(UNIT(s), &s->timer_watch);
- argv = unit_full_printf_strv(UNIT(s), c->argv);
- if (!argv) {
- r = -ENOMEM;
+ r = unit_full_printf_strv(UNIT(s), c->argv, &argv);
+ if (r < 0)
goto fail;
- }
our_env = new0(char*, 5);
if (!our_env) {
diff --git a/src/core/socket.c b/src/core/socket.c
index 2130e48686..46a73e0108 100644
--- a/src/core/socket.c
+++ b/src/core/socket.c
@@ -1226,11 +1226,9 @@ static int socket_spawn(Socket *s, ExecCommand *c, pid_t *_pid) {
if (r < 0)
goto fail;
- argv = unit_full_printf_strv(UNIT(s), c->argv);
- if (!argv) {
- r = -ENOMEM;
+ r = unit_full_printf_strv(UNIT(s), c->argv, &argv);
+ if (r < 0)
goto fail;
- }
r = exec_spawn(c,
argv,
diff --git a/src/core/unit-printf.c b/src/core/unit-printf.c
index ffc203dd92..1a29a986e9 100644
--- a/src/core/unit-printf.c
+++ b/src/core/unit-printf.c
@@ -30,98 +30,158 @@
#include "cgroup-util.h"
#include "special.h"
-static char *specifier_prefix_and_instance(char specifier, void *data, void *userdata) {
+static int specifier_prefix_and_instance(char specifier, void *data, void *userdata, char **ret) {
Unit *u = userdata;
+ char *n;
+
assert(u);
- return unit_name_to_prefix_and_instance(u->id);
+ n = unit_name_to_prefix_and_instance(u->id);
+ if (!n)
+ return -ENOMEM;
+
+ *ret = n;
+ return 0;
}
-static char *specifier_prefix(char specifier, void *data, void *userdata) {
+static int specifier_prefix(char specifier, void *data, void *userdata, char **ret) {
Unit *u = userdata;
+ char *n;
+
assert(u);
- return unit_name_to_prefix(u->id);
+ n = unit_name_to_prefix(u->id);
+ if (!n)
+ return -ENOMEM;
+
+ *ret = n;
+ return 0;
}
-static char *specifier_prefix_unescaped(char specifier, void *data, void *userdata) {
+static int specifier_prefix_unescaped(char specifier, void *data, void *userdata, char **ret) {
Unit *u = userdata;
- char *p, *r;
+ _cleanup_free_ char *p = NULL;
+ char *n;
assert(u);
p = unit_name_to_prefix(u->id);
if (!p)
- return NULL;
+ return -ENOMEM;
- r = unit_name_unescape(p);
- free(p);
+ n = unit_name_unescape(p);
+ if (!n)
+ return -ENOMEM;
- return r;
+ *ret = n;
+ return 0;
}
-static char *specifier_instance_unescaped(char specifier, void *data, void *userdata) {
+static int specifier_instance_unescaped(char specifier, void *data, void *userdata, char **ret) {
Unit *u = userdata;
+ char *n;
+
assert(u);
if (u->instance)
- return unit_name_unescape(u->instance);
+ n = unit_name_unescape(u->instance);
+ else
+ n = strdup("");
+
+ if (!n)
+ return -ENOMEM;
- return strdup("");
+ *ret = n;
+ return 0;
}
-static char *specifier_filename(char specifier, void *data, void *userdata) {
+static int specifier_filename(char specifier, void *data, void *userdata, char **ret) {
Unit *u = userdata;
+ char *n;
+
assert(u);
if (u->instance)
- return unit_name_path_unescape(u->instance);
+ n = unit_name_path_unescape(u->instance);
+ else
+ n = unit_name_to_path(u->id);
- return unit_name_to_path(u->id);
+ if (!n)
+ return -ENOMEM;
+
+ *ret = n;
+ return 0;
}
-static char *specifier_cgroup(char specifier, void *data, void *userdata) {
+static int specifier_cgroup(char specifier, void *data, void *userdata, char **ret) {
Unit *u = userdata;
+ char *n;
+
assert(u);
- return unit_default_cgroup_path(u);
+ n = unit_default_cgroup_path(u);
+ if (!n)
+ return -ENOMEM;
+
+ *ret = n;
+ return 0;
}
-static char *specifier_cgroup_root(char specifier, void *data, void *userdata) {
- _cleanup_free_ char *p = NULL;
+static int specifier_cgroup_root(char specifier, void *data, void *userdata, char **ret) {
Unit *u = userdata;
const char *slice;
+ char *n;
int r;
assert(u);
slice = unit_slice_name(u);
if (specifier == 'R' || !slice)
- return strdup(u->manager->cgroup_root);
+ n = strdup(u->manager->cgroup_root);
+ else {
+ _cleanup_free_ char *p = NULL;
- r = cg_slice_to_path(slice, &p);
- if (r < 0)
- return NULL;
+ r = cg_slice_to_path(slice, &p);
+ if (r < 0)
+ return r;
+
+ n = strjoin(u->manager->cgroup_root, "/", p, NULL);
+ if (!n)
+ return -ENOMEM;
+ }
- return strjoin(u->manager->cgroup_root, "/", p, NULL);
+ *ret = n;
+ return 0;
}
-static char *specifier_runtime(char specifier, void *data, void *userdata) {
+static int specifier_runtime(char specifier, void *data, void *userdata, char **ret) {
Unit *u = userdata;
+ char *n = NULL;
+
assert(u);
if (u->manager->running_as == SYSTEMD_USER) {
const char *e;
e = getenv("XDG_RUNTIME_DIR");
- if (e)
- return strdup(e);
+ if (e) {
+ n = strdup(e);
+ if (!n)
+ return -ENOMEM;
+ }
}
- return strdup("/run");
+ if (!n) {
+ n = strdup("/run");
+ if (!n)
+ return -ENOMEM;
+ }
+
+ *ret = n;
+ return 0;
}
-static char *specifier_user_name(char specifier, void *data, void *userdata) {
+static int specifier_user_name(char specifier, void *data, void *userdata, char **ret) {
Unit *u = userdata;
ExecContext *c;
int r;
@@ -143,26 +203,31 @@ static char *specifier_user_name(char specifier, void *data, void *userdata) {
/* fish username from passwd */
r = get_user_creds(&username, &uid, NULL, NULL, NULL);
if (r < 0)
- return NULL;
+ return r;
switch (specifier) {
case 'U':
if (asprintf(&printed, "%d", uid) < 0)
- return NULL;
+ return -ENOMEM;
break;
case 'u':
printed = strdup(username);
break;
}
- return printed;
+ if (!printed)
+ return -ENOMEM;
+
+ *ret = printed;
+ return 0;
}
-static char *specifier_user_home(char specifier, void *data, void *userdata) {
+static int specifier_user_home(char specifier, void *data, void *userdata, char **ret) {
Unit *u = userdata;
ExecContext *c;
int r;
const char *username, *home;
+ char *n;
assert(u);
@@ -174,25 +239,31 @@ static char *specifier_user_home(char specifier, void *data, void *userdata) {
r = get_home_dir(&h);
if (r < 0)
- return NULL;
+ return r;
- return h;
+ *ret = h;
+ return 0;
}
username = c->user;
r = get_user_creds(&username, NULL, NULL, &home, NULL);
if (r < 0)
- return NULL;
+ return r;
- return strdup(home);
+ n = strdup(home);
+ if (!n)
+ return -ENOMEM;
+
+ *ret = n;
+ return 0;
}
-static char *specifier_user_shell(char specifier, void *data, void *userdata) {
+static int specifier_user_shell(char specifier, void *data, void *userdata, char **ret) {
Unit *u = userdata;
ExecContext *c;
int r;
const char *username, *shell;
- char *ret;
+ char *n;
assert(u);
@@ -205,27 +276,18 @@ static char *specifier_user_shell(char specifier, void *data, void *userdata) {
/* return /bin/sh for root, otherwise the value from passwd */
r = get_user_creds(&username, NULL, NULL, NULL, &shell);
- if (r < 0) {
- log_warning_unit(u->id,
- "Failed to determine shell: %s",
- strerror(-r));
- return NULL;
- }
-
- if (!path_is_absolute(shell)) {
- log_warning_unit(u->id,
- "Shell %s is not absolute, ignoring.",
- shell);
- }
+ if (r < 0)
+ return r;
- ret = strdup(shell);
- if (!ret)
- log_oom();
+ n = strdup(shell);
+ if (!n)
+ return -ENOMEM;
- return ret;
+ *ret = n;
+ return 0;
}
-char *unit_name_printf(Unit *u, const char* format) {
+int unit_name_printf(Unit *u, const char* format, char **ret) {
/*
* This will use the passed string as format string and
@@ -247,11 +309,12 @@ char *unit_name_printf(Unit *u, const char* format) {
assert(u);
assert(format);
+ assert(ret);
- return specifier_printf(format, table, u);
+ return specifier_printf(format, table, u, ret);
}
-char *unit_full_printf(Unit *u, const char *format) {
+int unit_full_printf(Unit *u, const char *format, char **ret) {
/* This is similar to unit_name_printf() but also supports
* unescaping. Also, adds a couple of additional codes:
@@ -296,14 +359,17 @@ char *unit_full_printf(Unit *u, const char *format) {
{}
};
+ assert(u);
assert(format);
+ assert(ret);
- return specifier_printf(format, table, u);
+ return specifier_printf(format, table, u, ret);
}
-char **unit_full_printf_strv(Unit *u, char **l) {
+int unit_full_printf_strv(Unit *u, char **l, char ***ret) {
size_t n;
char **r, **i, **j;
+ int q;
/* Applies unit_full_printf to every entry in l */
@@ -312,22 +378,22 @@ char **unit_full_printf_strv(Unit *u, char **l) {
n = strv_length(l);
r = new(char*, n+1);
if (!r)
- return NULL;
+ return -ENOMEM;
for (i = l, j = r; *i; i++, j++) {
- *j = unit_full_printf(u, *i);
- if (!*j)
+ q = unit_full_printf(u, *i, j);
+ if (q < 0)
goto fail;
}
*j = NULL;
- return r;
+ *ret = r;
+ return 0;
fail:
for (j--; j >= r; j--)
free(*j);
free(r);
-
- return NULL;
+ return q;
}
diff --git a/src/core/unit-printf.h b/src/core/unit-printf.h
index d2f4ccd178..51acad63e9 100644
--- a/src/core/unit-printf.h
+++ b/src/core/unit-printf.h
@@ -23,6 +23,6 @@
#include "unit.h"
-char *unit_name_printf(Unit *u, const char* text);
-char *unit_full_printf(Unit *u, const char *text);
-char **unit_full_printf_strv(Unit *u, char **l);
+int unit_name_printf(Unit *u, const char* text, char **ret);
+int unit_full_printf(Unit *u, const char *text, char **ret);
+int unit_full_printf_strv(Unit *u, char **l, char ***ret);
diff --git a/src/shared/install-printf.c b/src/shared/install-printf.c
index 1157ea989b..1ee1243f4d 100644
--- a/src/shared/install-printf.c
+++ b/src/shared/install-printf.c
@@ -27,21 +27,35 @@
#include "util.h"
#include "install-printf.h"
-static char *specifier_prefix_and_instance(char specifier, void *data, void *userdata) {
+static int specifier_prefix_and_instance(char specifier, void *data, void *userdata, char **ret) {
InstallInfo *i = userdata;
+ char *n;
+
assert(i);
- return unit_name_to_prefix_and_instance(i->name);
+ n = unit_name_to_prefix_and_instance(i->name);
+ if (!n)
+ return -ENOMEM;
+
+ *ret = n;
+ return 0;
}
-static char *specifier_prefix(char specifier, void *data, void *userdata) {
+static int specifier_prefix(char specifier, void *data, void *userdata, char **ret) {
InstallInfo *i = userdata;
+ char *n;
+
assert(i);
- return unit_name_to_prefix(i->name);
+ n = unit_name_to_prefix(i->name);
+ if (!n)
+ return -ENOMEM;
+
+ *ret = n;
+ return 0;
}
-static char *specifier_instance(char specifier, void *data, void *userdata) {
+static int specifier_instance(char specifier, void *data, void *userdata, char **ret) {
InstallInfo *i = userdata;
char *instance;
int r;
@@ -50,14 +64,19 @@ static char *specifier_instance(char specifier, void *data, void *userdata) {
r = unit_name_to_instance(i->name, &instance);
if (r < 0)
- return NULL;
- if (instance != NULL)
- return instance;
- else
- return strdup("");
+ return r;
+
+ if (!instance) {
+ instance = strdup("");
+ if (!instance)
+ return -ENOMEM;
+ }
+
+ *ret = instance;
+ return 0;
}
-static char *specifier_user_name(char specifier, void *data, void *userdata) {
+static int specifier_user_name(char specifier, void *data, void *userdata, char **ret) {
InstallInfo *i = userdata;
const char *username;
_cleanup_free_ char *tmp = NULL;
@@ -82,18 +101,20 @@ static char *specifier_user_name(char specifier, void *data, void *userdata) {
r = get_user_creds(&username, &uid, NULL, NULL, NULL);
if (r < 0)
- return NULL;
+ return r;
if (asprintf(&printed, "%d", uid) < 0)
- return NULL;
+ return -ENOMEM;
break;
}}
- return printed;
+
+ *ret = printed;
+ return 0;
}
-char *install_full_printf(InstallInfo *i, const char *format) {
+int install_full_printf(InstallInfo *i, const char *format, char **ret) {
/* This is similar to unit_full_printf() but does not support
* anything path-related.
@@ -129,6 +150,7 @@ char *install_full_printf(InstallInfo *i, const char *format) {
assert(i);
assert(format);
+ assert(ret);
- return specifier_printf(format, table, i);
+ return specifier_printf(format, table, i, ret);
}
diff --git a/src/shared/install-printf.h b/src/shared/install-printf.h
index 46f5294d21..6ffa488b1b 100644
--- a/src/shared/install-printf.h
+++ b/src/shared/install-printf.h
@@ -22,4 +22,4 @@
#pragma once
#include "install.h"
-char *install_full_printf(InstallInfo *i, const char *format);
+int install_full_printf(InstallInfo *i, const char *format, char **ret);
diff --git a/src/shared/install.c b/src/shared/install.c
index 07e06c425f..9722ed4e1c 100644
--- a/src/shared/install.c
+++ b/src/shared/install.c
@@ -967,14 +967,15 @@ static int config_parse_user(const char *unit,
InstallInfo *i = data;
char* printed;
+ int r;
assert(filename);
assert(lvalue);
assert(rvalue);
- printed = install_full_printf(i, rvalue);
- if (!printed)
- return -ENOMEM;
+ r = install_full_printf(i, rvalue, &printed);
+ if (r < 0)
+ return r;
free(i->user);
i->user = printed;
@@ -1200,9 +1201,9 @@ static int install_info_symlink_alias(
STRV_FOREACH(s, i->aliases) {
_cleanup_free_ char *alias_path = NULL, *dst = NULL;
- dst = install_full_printf(i, *s);
- if (!dst)
- return -ENOMEM;
+ q = install_full_printf(i, *s, &dst);
+ if (q < 0)
+ return q;
alias_path = path_make_absolute(dst, config_path);
if (!alias_path)
@@ -1232,9 +1233,9 @@ static int install_info_symlink_wants(
STRV_FOREACH(s, i->wanted_by) {
_cleanup_free_ char *path = NULL, *dst = NULL;
- dst = install_full_printf(i, *s);
- if (!dst)
- return -ENOMEM;
+ q = install_full_printf(i, *s, &dst);
+ if (q < 0)
+ return q;
if (!unit_name_is_valid(dst, true)) {
r = -EINVAL;
@@ -1269,9 +1270,9 @@ static int install_info_symlink_requires(
STRV_FOREACH(s, i->required_by) {
_cleanup_free_ char *path = NULL, *dst = NULL;
- dst = install_full_printf(i, *s);
- if (!dst)
- return -ENOMEM;
+ q = install_full_printf(i, *s, &dst);
+ if (q < 0)
+ return q;
if (!unit_name_is_valid(dst, true)) {
r = -EINVAL;
diff --git a/src/shared/specifier.c b/src/shared/specifier.c
index bb8859fdfd..8fbf6db5df 100644
--- a/src/shared/specifier.c
+++ b/src/shared/specifier.c
@@ -32,21 +32,22 @@
*
*/
-char *specifier_printf(const char *text, const Specifier table[], void *userdata) {
- char *r, *t;
+int specifier_printf(const char *text, const Specifier table[], void *userdata, char **_ret) {
+ char *ret, *t;
const char *f;
bool percent = false;
size_t l;
+ int r;
assert(text);
assert(table);
l = strlen(text);
- r = new(char, l+1);
- if (!r)
- return NULL;
+ ret = new(char, l+1);
+ if (!ret)
+ return -ENOMEM;
- t = r;
+ t = ret;
for (f = text; *f; f++, l--) {
@@ -61,32 +62,31 @@ char *specifier_printf(const char *text, const Specifier table[], void *userdata
break;
if (i->lookup) {
- char *n, *w;
+ _cleanup_free_ char *w = NULL;
+ char *n;
size_t k, j;
- w = i->lookup(i->specifier, i->data, userdata);
- if (!w) {
- free(r);
- return NULL;
+ r = i->lookup(i->specifier, i->data, userdata, &w);
+ if (r < 0) {
+ free(ret);
+ return r;
}
- j = t - r;
+ j = t - ret;
k = strlen(w);
n = new(char, j + k + l + 1);
if (!n) {
- free(r);
- free(w);
- return NULL;
+ free(ret);
+ return -ENOMEM;
}
- memcpy(n, r, j);
+ memcpy(n, ret, j);
memcpy(n + j, w, k);
- free(r);
- free(w);
+ free(ret);
- r = n;
+ ret = n;
t = n + j + k;
} else {
*(t++) = '%';
@@ -102,58 +102,81 @@ char *specifier_printf(const char *text, const Specifier table[], void *userdata
}
*t = 0;
- return r;
+ *_ret = ret;
+ return 0;
}
/* Generic handler for simple string replacements */
-char* specifier_string(char specifier, void *data, void *userdata) {
- return strdup(strempty(data));
+int specifier_string(char specifier, void *data, void *userdata, char **ret) {
+ char *n;
+
+ n = strdup(strempty(data));
+ if (!n)
+ return -ENOMEM;
+
+ *ret = n;
+ return 0;
}
-char *specifier_machine_id(char specifier, void *data, void *userdata) {
+int specifier_machine_id(char specifier, void *data, void *userdata, char **ret) {
sd_id128_t id;
- char *buf;
+ char *n;
int r;
r = sd_id128_get_machine(&id);
if (r < 0)
- return NULL;
+ return r;
- buf = new(char, 33);
- if (!buf)
- return NULL;
+ n = new(char, 33);
+ if (!n)
+ return -ENOMEM;
- return sd_id128_to_string(id, buf);
+ *ret = sd_id128_to_string(id, n);
+ return 0;
}
-char *specifier_boot_id(char specifier, void *data, void *userdata) {
+int specifier_boot_id(char specifier, void *data, void *userdata, char **ret) {
sd_id128_t id;
- char *buf;
+ char *n;
int r;
r = sd_id128_get_boot(&id);
if (r < 0)
- return NULL;
+ return r;
- buf = new(char, 33);
- if (!buf)
- return NULL;
+ n = new(char, 33);
+ if (!n)
+ return -ENOMEM;
- return sd_id128_to_string(id, buf);
+ *ret = sd_id128_to_string(id, n);
+ return 0;
}
-char *specifier_host_name(char specifier, void *data, void *userdata) {
- return gethostname_malloc();
+int specifier_host_name(char specifier, void *data, void *userdata, char **ret) {
+ char *n;
+
+ n = gethostname_malloc();
+ if (!n)
+ return -ENOMEM;
+
+ *ret = n;
+ return 0;
}
-char *specifier_kernel_release(char specifier, void *data, void *userdata) {
+int specifier_kernel_release(char specifier, void *data, void *userdata, char **ret) {
struct utsname uts;
+ char *n;
int r;
r = uname(&uts);
if (r < 0)
- return NULL;
+ return -errno;
+
+ n = strdup(uts.release);
+ if (!n)
+ return -ENOMEM;
- return strdup(uts.release);
+ *ret = n;
+ return 0;
}
diff --git a/src/shared/specifier.h b/src/shared/specifier.h
index d13e6406b6..fca206f665 100644
--- a/src/shared/specifier.h
+++ b/src/shared/specifier.h
@@ -21,7 +21,7 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-typedef char* (*SpecifierCallback)(char specifier, void *data, void *userdata);
+typedef int (*SpecifierCallback)(char specifier, void *data, void *userdata, char **ret);
typedef struct Specifier {
const char specifier;
@@ -29,11 +29,11 @@ typedef struct Specifier {
void *data;
} Specifier;
-char *specifier_printf(const char *text, const Specifier table[], void *userdata);
+int specifier_printf(const char *text, const Specifier table[], void *userdata, char **ret);
-char *specifier_string(char specifier, void *data, void *userdata);
+int specifier_string(char specifier, void *data, void *userdata, char **ret);
-char *specifier_machine_id(char specifier, void *data, void *userdata);
-char *specifier_boot_id(char specifier, void *data, void *userdata);
-char *specifier_host_name(char specifier, void *data, void *userdata);
-char *specifier_kernel_release(char specifier, void *data, void *userdata);
+int specifier_machine_id(char specifier, void *data, void *userdata, char **ret);
+int specifier_boot_id(char specifier, void *data, void *userdata, char **ret);
+int specifier_host_name(char specifier, void *data, void *userdata, char **ret);
+int specifier_kernel_release(char specifier, void *data, void *userdata, char **ret);
diff --git a/src/test/test-strv.c b/src/test/test-strv.c
index 25bee22dfe..6513d2e07b 100644
--- a/src/test/test-strv.c
+++ b/src/test/test-strv.c
@@ -28,18 +28,30 @@
static void test_specifier_printf(void) {
_cleanup_free_ char *w = NULL;
+ int r;
const Specifier table[] = {
{ 'a', specifier_string, (char*) "AAAA" },
{ 'b', specifier_string, (char*) "BBBB" },
+ { 'm', specifier_machine_id, NULL },
+ { 'B', specifier_boot_id, NULL },
+ { 'H', specifier_host_name, NULL },
+ { 'v', specifier_kernel_release, NULL },
{ 0, NULL, NULL }
};
- w = specifier_printf("xxx a=%a b=%b yyy", table, NULL);
+ r = specifier_printf("xxx a=%a b=%b yyy", table, NULL, &w);
+ assert_se(r >= 0);
+ assert_se(w);
+
puts(w);
+ assert_se(streq(w, "xxx a=AAAA b=BBBB yyy"));
+ free(w);
+ r = specifier_printf("machine=%m, boot=%B, host=%H, version=%v", table, NULL, &w);
+ assert_se(r >= 0);
assert_se(w);
- assert_se(streq(w, "xxx a=AAAA b=BBBB yyy"));
+ puts(w);
}
static const char* const input_table_multiple[] = {
diff --git a/src/test/test-unit-file.c b/src/test/test-unit-file.c
index dc6bc55244..0413ae2117 100644
--- a/src/test/test-unit-file.c
+++ b/src/test/test-unit-file.c
@@ -302,17 +302,18 @@ static void test_install_printf(void) {
_cleanup_free_ char *mid, *bid, *host;
- assert_se((mid = specifier_machine_id('m', NULL, NULL)));
- assert_se((bid = specifier_boot_id('b', NULL, NULL)));
+ assert_se(specifier_machine_id('m', NULL, NULL, &mid) >= 0 && mid);
+ assert_se(specifier_boot_id('b', NULL, NULL, &bid) >= 0 && bid);
assert_se((host = gethostname_malloc()));
#define expect(src, pattern, result) \
do { \
- _cleanup_free_ char *t = install_full_printf(&src, pattern); \
+ _cleanup_free_ char *t = NULL; \
_cleanup_free_ char \
*d1 = strdup(i.name), \
*d2 = strdup(i.path), \
*d3 = strdup(i.user); \
+ assert_se(install_full_printf(&src, pattern, &t) >= 0 || !result); \
memzero(i.name, strlen(i.name)); \
memzero(i.path, strlen(i.path)); \
memzero(i.user, strlen(i.user)); \
diff --git a/src/test/test-unit-name.c b/src/test/test-unit-name.c
index c17692b845..67ccdd4228 100644
--- a/src/test/test-unit-name.c
+++ b/src/test/test-unit-name.c
@@ -117,8 +117,8 @@ static int test_unit_printf(void) {
_cleanup_free_ char *mid, *bid, *host, *root_uid;
struct passwd *root;
- assert_se((mid = specifier_machine_id('m', NULL, NULL)));
- assert_se((bid = specifier_boot_id('b', NULL, NULL)));
+ assert_se(specifier_machine_id('m', NULL, NULL, &mid) >= 0 && mid);
+ assert_se(specifier_boot_id('b', NULL, NULL, &bid) >= 0 && bid);
assert_se((host = gethostname_malloc()));
assert_se((root = getpwnam("root")));
@@ -134,8 +134,8 @@ static int test_unit_printf(void) {
#define expect(unit, pattern, expected) \
{ \
char *e; \
- _cleanup_free_ char *t = \
- unit_full_printf(unit, pattern); \
+ _cleanup_free_ char *t; \
+ assert_se(unit_full_printf(unit, pattern, &t) >= 0); \
printf("result: %s\nexpect: %s\n", t, expected); \
if ((e = endswith(expected, "*"))) \
assert(strncmp(t, e, e-expected)); \
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-14 06:33:02 +0000