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sd-id128: add _public_ to all exports, and add validity checks for all parameters

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This commit is contained in:
Lennart Poettering 2012-01-03 20:58:07 +01:00
parent a5344d2c3b
commit 000a2c9886
2 changed files with 21 additions and 11 deletions
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2
Makefile.am
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@ -1925,7 +1925,7 @@ man/sd_login_monitor_get_fd.3: man/sd_login_monitor_new.3
man/sd_session_get_uid.3: man/sd_session_is_active.3
man/sd_session_get_seat.3: man/sd_session_is_active.3
man/sd_pid_get_owner_uid.3: man/sd_pid_get_session.3
man/sd_pid_get_session.3: man/sd_pid_get_session.3
man/sd_pid_get_service.3: man/sd_pid_get_session.3
man/sd_uid_is_on_seat.3: man/sd_uid_get_state.3
man/sd_uid_get_sessions.3: man/sd_uid_get_state.3
man/sd_uid_get_seats.3: man/sd_uid_get_state.3

30
src/sd-id128.c
View File

@ -27,10 +27,11 @@
#include "util.h"
#include "macro.h"
char *sd_id128_to_string(sd_id128_t id, char s[33]) {
_public_ char *sd_id128_to_string(sd_id128_t id, char s[33]) {
unsigned n;
assert(s);
if (!s)
return NULL;
for (n = 0; n < 16; n++) {
s[n*2] = hexchar(id.bytes[n] >> 4);
@ -42,12 +43,14 @@ char *sd_id128_to_string(sd_id128_t id, char s[33]) {
return s;
}
int sd_id128_from_string(const char s[33], sd_id128_t *ret) {
_public_ int sd_id128_from_string(const char s[33], sd_id128_t *ret) {
unsigned n;
sd_id128_t t;
assert(s);
assert(ret);
if (!s)
return -EINVAL;
if (!ret)
return -EINVAL;
for (n = 0; n < 16; n++) {
int a, b;
@ -70,7 +73,7 @@ int sd_id128_from_string(const char s[33], sd_id128_t *ret) {
return 0;
}
sd_id128_t sd_id128_make_v4_uuid(sd_id128_t id) {
_public_ sd_id128_t sd_id128_make_v4_uuid(sd_id128_t id) {
/* Stolen from generate_random_uuid() of drivers/char/random.c
* in the kernel sources */
@ -83,7 +86,7 @@ sd_id128_t sd_id128_make_v4_uuid(sd_id128_t id) {
return id;
}
int sd_id128_get_machine(sd_id128_t *ret) {
_public_ int sd_id128_get_machine(sd_id128_t *ret) {
static __thread sd_id128_t saved_machine_id;
static __thread bool saved_machine_id_valid = false;
int fd;
@ -92,6 +95,9 @@ int sd_id128_get_machine(sd_id128_t *ret) {
unsigned j;
sd_id128_t t;
if (!ret)
return -EINVAL;
if (saved_machine_id_valid) {
*ret = saved_machine_id;
return 0;
@ -129,7 +135,7 @@ int sd_id128_get_machine(sd_id128_t *ret) {
return 0;
}
int sd_id128_get_boot(sd_id128_t *ret) {
_public_ int sd_id128_get_boot(sd_id128_t *ret) {
static __thread sd_id128_t saved_boot_id;
static __thread bool saved_boot_id_valid = false;
int fd;
@ -139,6 +145,9 @@ int sd_id128_get_boot(sd_id128_t *ret) {
sd_id128_t t;
char *p;
if (!ret)
return -EINVAL;
if (saved_boot_id_valid) {
*ret = saved_boot_id;
return 0;
@ -181,12 +190,13 @@ int sd_id128_get_boot(sd_id128_t *ret) {
return 0;
}
int sd_id128_randomize(sd_id128_t *ret) {
_public_ int sd_id128_randomize(sd_id128_t *ret) {
int fd;
ssize_t k;
sd_id128_t t;
assert(ret);
if (!ret)
return -EINVAL;
fd = open("/dev/urandom", O_RDONLY|O_CLOEXEC|O_NOCTTY);
if (fd < 0)