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authorKacper <kacper@mail.openlinux.dev>2025-12-14 18:10:13 +0100
committerKacper <kacper@mail.openlinux.dev>2025-12-14 19:28:34 +0100
commit872cf03f26c2801ae6c3008ce5fa0d7856f5f85d (patch)
tree94809812b71ee286eb5b74c70e4d08fc4c8dc057 /lib/libc/string
parentec769a83bde09c76bd6ad9ee7f391036dba5cd97 (diff)
libc: implement err/warn functions
Diffstat (limited to 'lib/libc/string')
-rw-r--r--lib/libc/string/strerror.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/libc/string/strerror.c b/lib/libc/string/strerror.c
index c0a73146..2d3ea611 100644
--- a/lib/libc/string/strerror.c
+++ b/lib/libc/string/strerror.c
@@ -104,6 +104,12 @@ char *strerror(int errnum)
[EKEYREJECTED] = "Key was rejected by service",
};
+ if (errnum < 0 || (size_t)errnum >= sizeof(table) / sizeof(table[0]) ||
+ !table[errnum]) {
+ errno = EINVAL;
+ return NULL;
+ }
+
return table[errnum];
}