static void test_specifier_printf(void) {
static 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 },
{}
};
_cleanup_free_ char *w = NULL;
int r;
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);
puts(w);
}
char *unit_name_printf(Unit *u, const char* format) {
/*
* This will use the passed string as format string and
* replace the following specifiers:
*
* %n: the full id of the unit ([email protected])
* %N: the id of the unit without the suffix (foo@bar)
* %p: the prefix (foo)
* %i: the instance (bar)
*/
const Specifier table[] = {
{ 'n', specifier_string, u->id },
{ 'N', specifier_prefix_and_instance, NULL },
{ 'p', specifier_prefix, NULL },
{ 'i', specifier_string, u->instance },
{ 0, NULL, NULL }
};
assert(u);
assert(format);
return specifier_printf(format, table, u);
}
char *unit_full_printf(Unit *u, const char *format) {
/* This is similar to unit_name_printf() but also supports
* unescaping. Also, adds a couple of additional codes:
*
* %f the the instance if set, otherwise the id
* %c cgroup path of unit
* %r root cgroup path of this systemd instance (e.g. "/user/lennart/shared/systemd-4711")
* %R parent of root cgroup path (e.g. "/usr/lennart/shared")
* %t the runtime directory to place sockets in (e.g. "/run" or $XDG_RUNTIME_DIR)
* %U the UID of the configured user or running user
* %u the username of the configured user or running user
* %h the homedir of the configured user or running user
* %s the shell of the configured user or running user
* %m the machine ID of the running system
* %H the host name of the running system
* %b the boot ID of the running system
*/
const Specifier table[] = {
{ 'n', specifier_string, u->id },
{ 'N', specifier_prefix_and_instance, NULL },
{ 'p', specifier_prefix, NULL },
{ 'P', specifier_prefix_unescaped, NULL },
{ 'i', specifier_string, u->instance },
{ 'I', specifier_instance_unescaped, NULL },
{ 'f', specifier_filename, NULL },
{ 'c', specifier_cgroup, NULL },
{ 'r', specifier_cgroup_root, NULL },
{ 'R', specifier_cgroup_root, NULL },
{ 't', specifier_runtime, NULL },
{ 'U', specifier_user_name, NULL },
{ 'u', specifier_user_name, NULL },
{ 'h', specifier_user_home, NULL },
{ 's', specifier_user_shell, NULL },
{ 'm', specifier_machine_id, NULL },
{ 'H', specifier_host_name, NULL },
{ 'b', specifier_boot_id, NULL },
{ 0, NULL, NULL }
};
assert(format);
return specifier_printf(format, table, u);
}
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.
*
* %n: the full id of the unit ([email protected])
* %N: the id of the unit without the suffix (foo@bar)
* %p: the prefix (foo)
* %i: the instance (bar)
* %U the UID of the configured user or running user
* %u the username of the configured user or running user
* %m the machine ID of the running system
* %H the host name of the running system
* %b the boot ID of the running system
* %v `uname -r` of the running system
*/
const Specifier table[] = {
{ 'n', specifier_string, i->name },
{ 'N', specifier_prefix_and_instance, NULL },
{ 'p', specifier_prefix, NULL },
{ 'i', specifier_instance, NULL },
{ 'U', specifier_user_name, NULL },
{ 'u', specifier_user_name, NULL },
{ 'm', specifier_machine_id, NULL },
{ 'H', specifier_host_name, NULL },
{ 'b', specifier_boot_id, NULL },
{ 'v', specifier_kernel_release, NULL },
{}
};
assert(i);
assert(format);
assert(ret);
return specifier_printf(format, table, i, ret);
}
int config_parse_dnssd_service_name(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) {
static const Specifier specifier_table[] = {
{ 'b', specifier_boot_id, NULL },
{ 'H', specifier_host_name, NULL },
{ 'm', specifier_machine_id, NULL },
{ 'v', specifier_kernel_release, NULL },
{}
};
DnssdService *s = userdata;
_cleanup_free_ char *name = NULL;
int r;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(s);
if (isempty(rvalue)) {
log_syntax(unit, LOG_ERR, filename, line, 0, "Service instance name can't be empty. Ignoring.");
return -EINVAL;
}
r = free_and_strdup(&s->name_template, rvalue);
if (r < 0)
return log_oom();
r = specifier_printf(s->name_template, specifier_table, NULL, &name);
if (r < 0)
return log_debug_errno(r, "Failed to replace specifiers: %m");
if (!dns_service_name_is_valid(name)) {
log_syntax(unit, LOG_ERR, filename, line, 0, "Service instance name template renders to invalid name '%s'. Ignoring.", name);
return -EINVAL;
}
return 0;
}
printf("<%s>\n", test);
FOREACH_WORD_QUOTED(w, l, test, state) {
char *t;
assert_se(t = strndup(w, l));
printf("<%s>\n", t);
free(t);
}
printf("%s\n", default_term_for_tty("/dev/tty23"));
printf("%s\n", default_term_for_tty("/dev/ttyS23"));
printf("%s\n", default_term_for_tty("/dev/tty0"));
printf("%s\n", default_term_for_tty("/dev/pty0"));
printf("%s\n", default_term_for_tty("/dev/pts/0"));
printf("%s\n", default_term_for_tty("/dev/console"));
printf("%s\n", default_term_for_tty("tty23"));
printf("%s\n", default_term_for_tty("ttyS23"));
printf("%s\n", default_term_for_tty("tty0"));
printf("%s\n", default_term_for_tty("pty0"));
printf("%s\n", default_term_for_tty("pts/0"));
printf("%s\n", default_term_for_tty("console"));
w = specifier_printf("xxx a=%a b=%b yyy", table, NULL);
printf("<%s>\n", w);
free(w);
return 0;
}
