diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/sd-id128.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/src/sd-id128.c b/src/sd-id128.c index f5e0432a3f..387cf919b0 100644 --- a/src/sd-id128.c +++ b/src/sd-id128.c @@ -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) |