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dbus-execute: use empty_to_null() where it can be applicable

This commit is contained in:
Yu Watanabe 2017-12-19 16:49:37 +09:00
parent f50ab33faf
commit d6ff82d37c
1 changed files with 34 additions and 52 deletions
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86
src/core/dbus-execute.c
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@ -1169,7 +1169,7 @@ int bus_exec_context_set_transient_property(
flags |= UNIT_PRIVATE;
if (streq(name, "User")) {
if (STR_IN_SET(name, "User", "Group")) {
const char *uu;
r = sd_bus_message_read(message, "s", &uu);
@ -1177,36 +1177,18 @@ int bus_exec_context_set_transient_property(
return r;
if (!isempty(uu) && !valid_user_group_name_or_id(uu))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user name: %s", uu);
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid %s: %s", name, uu);
if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
r = free_and_strdup(&c->user, empty_to_null(uu));
if (streq(name, "User"))
r = free_and_strdup(&c->user, empty_to_null(uu));
else /* "Group" */
r = free_and_strdup(&c->group, empty_to_null(uu));
if (r < 0)
return r;
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "User=%s", uu);
}
return 1;
} else if (streq(name, "Group")) {
const char *gg;
r = sd_bus_message_read(message, "s", &gg);
if (r < 0)
return r;
if (!isempty(gg) && !valid_user_group_name_or_id(gg))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group name: %s", gg);
if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
r = free_and_strdup(&c->group, empty_to_null(gg));
if (r < 0)
return r;
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "Group=%s", gg);
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", name, uu);
}
return 1;
@ -1254,10 +1236,9 @@ int bus_exec_context_set_transient_property(
if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
if (isempty(id))
c->syslog_identifier = mfree(c->syslog_identifier);
else if (free_and_strdup(&c->syslog_identifier, id) < 0)
return -ENOMEM;
r = free_and_strdup(&c->syslog_identifier, empty_to_null(id));
if (r < 0)
return r;
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "SyslogIdentifier=%s", id);
}
@ -1823,17 +1804,17 @@ int bus_exec_context_set_transient_property(
if (r < 0)
return r;
if (!path_is_absolute(s))
if (!isempty(s) && !path_is_absolute(s))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s takes an absolute path", name);
if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
if (streq(name, "TTYPath"))
r = free_and_strdup(&c->tty_path, s);
r = free_and_strdup(&c->tty_path, empty_to_null(s));
else if (streq(name, "RootImage"))
r = free_and_strdup(&c->root_image, s);
r = free_and_strdup(&c->root_image, empty_to_null(s));
else {
assert(streq(name, "RootDirectory"));
r = free_and_strdup(&c->root_directory, s);
r = free_and_strdup(&c->root_directory, empty_to_null(s));
}
if (r < 0)
return r;
@ -1857,7 +1838,7 @@ int bus_exec_context_set_transient_property(
} else
missing_ok = false;
if (!streq(s, "~") && !path_is_absolute(s))
if (!isempty(s) && !streq(s, "~") && !path_is_absolute(s))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "WorkingDirectory= expects an absolute path or '~'");
if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
@ -1865,7 +1846,7 @@ int bus_exec_context_set_transient_property(
c->working_directory = mfree(c->working_directory);
c->working_directory_home = true;
} else {
r = free_and_strdup(&c->working_directory, s);
r = free_and_strdup(&c->working_directory, empty_to_null(s));
if (r < 0)
return r;
@ -1946,15 +1927,13 @@ int bus_exec_context_set_transient_property(
if (r < 0)
return r;
if (isempty(s))
s = NULL;
else if (!fdname_is_valid(s))
if (!isempty(s) && !fdname_is_valid(s))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid file descriptor name");
if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
if (streq(name, "StandardInputFileDescriptorName")) {
r = free_and_strdup(c->stdio_fdname + STDIN_FILENO, s);
r = free_and_strdup(c->stdio_fdname + STDIN_FILENO, empty_to_null(s));
if (r < 0)
return r;
@ -1962,7 +1941,7 @@ int bus_exec_context_set_transient_property(
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardInput=fd:%s", exec_context_fdname(c, STDIN_FILENO));
} else if (streq(name, "StandardOutputFileDescriptorName")) {
r = free_and_strdup(c->stdio_fdname + STDOUT_FILENO, s);
r = free_and_strdup(c->stdio_fdname + STDOUT_FILENO, empty_to_null(s));
if (r < 0)
return r;
@ -1972,7 +1951,7 @@ int bus_exec_context_set_transient_property(
} else {
assert(streq(name, "StandardErrorFileDescriptorName"));
r = free_and_strdup(&c->stdio_fdname[STDERR_FILENO], s);
r = free_and_strdup(&c->stdio_fdname[STDERR_FILENO], empty_to_null(s));
if (r < 0)
return r;
@ -1990,15 +1969,17 @@ int bus_exec_context_set_transient_property(
if (r < 0)
return r;
if (!path_is_absolute(s))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute", s);
if (!path_is_normalized(s))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not normalized", s);
if (!isempty(s)) {
if (!path_is_absolute(s))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute", s);
if (!path_is_normalized(s))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not normalized", s);
}
if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
if (streq(name, "StandardInputFile")) {
r = free_and_strdup(&c->stdio_file[STDIN_FILENO], s);
r = free_and_strdup(&c->stdio_file[STDIN_FILENO], empty_to_null(s));
if (r < 0)
return r;
@ -2006,7 +1987,7 @@ int bus_exec_context_set_transient_property(
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardInput=file:%s", s);
} else if (streq(name, "StandardOutputFile")) {
r = free_and_strdup(&c->stdio_file[STDOUT_FILENO], s);
r = free_and_strdup(&c->stdio_file[STDOUT_FILENO], empty_to_null(s));
if (r < 0)
return r;
@ -2016,7 +1997,7 @@ int bus_exec_context_set_transient_property(
} else {
assert(streq(name, "StandardErrorFile"));
r = free_and_strdup(&c->stdio_file[STDERR_FILENO], s);
r = free_and_strdup(&c->stdio_file[STDERR_FILENO], empty_to_null(s));
if (r < 0)
return r;
@ -2635,15 +2616,16 @@ int bus_exec_context_set_transient_property(
} else if (streq(name, "SELinuxContext")) {
const char *s;
r = sd_bus_message_read(message, "s", &s);
if (r < 0)
return r;
if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
if (isempty(s))
c->selinux_context = mfree(c->selinux_context);
else if (free_and_strdup(&c->selinux_context, s) < 0)
return -ENOMEM;
r = free_and_strdup(&c->selinux_context, empty_to_null(s));
if (r < 0)
return r;
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", name, strempty(s));
}