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author | takeshi_hoshina <takeshi_hoshina@mail.toyota.co.jp> | 2020-10-27 11:16:21 +0900 |
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committer | takeshi_hoshina <takeshi_hoshina@mail.toyota.co.jp> | 2020-10-27 11:16:21 +0900 |
commit | 947c78887e791596d4a5ec2d1079f8b1a049628b (patch) | |
tree | 3981e88eb8764d7180722f8466f36b756dc005af /otherservice/posix_based_os001_legacy_library/library/src/strlcpy.c | |
parent | 706ad73eb02caf8532deaf5d38995bd258725cb8 (diff) |
basesystem 0.1sandbox/ToshikazuOhiwa/basesystem
Diffstat (limited to 'otherservice/posix_based_os001_legacy_library/library/src/strlcpy.c')
-rw-r--r-- | otherservice/posix_based_os001_legacy_library/library/src/strlcpy.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/otherservice/posix_based_os001_legacy_library/library/src/strlcpy.c b/otherservice/posix_based_os001_legacy_library/library/src/strlcpy.c new file mode 100644 index 00000000..f440c0e3 --- /dev/null +++ b/otherservice/posix_based_os001_legacy_library/library/src/strlcpy.c @@ -0,0 +1,49 @@ +/* + * @copyright Copyright (c) 2016-2020 TOYOTA MOTOR CORPORATION. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <sys/types.h> +#include <string.h> + +/* + * Copy src to string dst of size siz. At most siz-1 characters + * will be copied. Always NUL terminates (unless siz == 0). + * Returns strlen(src); if retval >= siz, truncation occurred. + */ +size_t +strlcpy(char *dst, const char *src, size_t siz) +{ + char *d = dst; + const char *s = src; + size_t n = siz; + + /* Copy as many bytes as will fit */ + if (n != 0) { + while (--n != 0) { + if ((*d++ = *s++) == '\0') + break; + } + } + + /* Not enough room in dst, add NUL and traverse rest of src */ + if (n == 0) { + if (siz != 0) + *d = '\0'; /* NUL-terminate dst */ + while (*s++) + ; + } + + return (size_t)(s - src - 1); /* count does not include NUL */ +} |