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Add and use __attribute__((nonnull)) in dnssec-signzone.c

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Clang 20 is complaining about passing NULL to an argument with 'nonnull'
attribute.  Mark these two functions with the same attribute to assure
that these two function also don't accept NULL as an argument.
This commit is contained in:
Ondřej Surý 2025-08-21 23:51:38 +02:00
parent 40b7f5b7ba
commit 9e350c1774
2 changed files with 11 additions and 0 deletions
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5
bin/dnssec/dnssec-signzone.c
View file

@ -3085,6 +3085,8 @@ writeset(const char *prefix, dns_rdatatype_t type) {
dns_db_detach(&db);
}
static void
print_time(FILE *fp) ISC_ATTR_NONNULL(1);
static void
print_time(FILE *fp) {
time_t currenttime = time(NULL);
@ -3101,6 +3103,8 @@ print_time(FILE *fp) {
fprintf(fp, "; File written on %s\n", timebuf);
}
static void
print_version(FILE *fp) ISC_ATTR_NONNULL(1);
static void
print_version(FILE *fp) {
if (outputformat != dns_masterformat_text) {
@ -3908,6 +3912,7 @@ main(int argc, char *argv[]) {
fatal("failed to open temporary output file: %s",
isc_result_totext(result));
}
INSIST(outfp != NULL);
removefile = true;
setfatalcallback(&removetempfile);
}

6
lib/isc/include/isc/attributes.h
View file

@ -112,3 +112,9 @@
#else
#define ISC_ATTR_COUNTED_BY(x)
#endif
#if __has_attribute(__nonnull__)
#define ISC_ATTR_NONNULL(...) __attribute__((__nonnull__(__VA_ARGS__)))
#else
#define ISC_ATTR_NONNULL(...)
#endif