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| author | Florian Weimer <fweimer@redhat.com> | 2023-06-14 18:10:08 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2023-06-14 18:10:08 +0200 |
| commit | 454a20c8756c9c1d55419153255fc7692b3d2199 (patch) | |
| tree | a65ad84288a247995183089f4400e4fd080ecc9d /string/string.h | |
| parent | 7ba426a1115318fc11f4355f3161f35817a06ba4 (diff) | |
| download | glibc-454a20c8756c9c1d55419153255fc7692b3d2199.zip glibc-454a20c8756c9c1d55419153255fc7692b3d2199.tar.gz glibc-454a20c8756c9c1d55419153255fc7692b3d2199.tar.bz2 | |
Implement strlcpy and strlcat [BZ #178]
These functions are about to be added to POSIX, under Austin Group
issue 986.
The fortified strlcat implementation does not raise SIGABRT if the
destination buffer does not contain a null terminator, it just
inherits the non-failing regular strlcat behavior.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Diffstat (limited to 'string/string.h')
| -rw-r--r-- | string/string.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/string/string.h b/string/string.h index 4927879..c0773d1 100644 --- a/string/string.h +++ b/string/string.h @@ -501,6 +501,19 @@ extern char *stpncpy (char *__restrict __dest, __THROW __nonnull ((1, 2)); #endif +#ifdef __USE_MISC +/* Copy at most N - 1 characters from SRC to DEST. */ +extern size_t strlcpy (char *__restrict __dest, + const char *__restrict __src, size_t __n) + __THROW __nonnull ((1, 2)) __attr_access ((__write_only__, 1, 3)); + +/* Append SRC to DEST, possibly with truncation to keep the total size + below N. */ +extern size_t strlcat (char *__restrict __dest, + const char *__restrict __src, size_t __n) + __THROW __nonnull ((1, 2)) __attr_access ((__read_write__, 1, 3)); +#endif + #ifdef __USE_GNU /* Compare S1 and S2 as strings holding name & indices/version numbers. */ extern int strverscmp (const char *__s1, const char *__s2) |