To assemble things like the volume id or fields of the format1 label
struct, strncpy() is used. Data copied here is later written to disk and
we don't want any terminating null byte ('\0') there. Therefore, we can
simply use memcpy() instead and get rid of the following GCC8 compile
warnings:
vtoc.c: In function ‘vtoc_init_format_1_8_label’:
vtoc.c:747:2: warning: ‘strncpy’ output truncated before terminating nul
copying 6 bytes from a s tring of the same length [-Wstringop-truncation]
strncpy((char *) f1->DS1DSSN, " ", 6);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vtoc.c:746:2: warning: ‘strncpy’ output may be truncated copying 44 bytes from
a string of length 79 [-Wstringop-truncation]
strncpy(f1->DS1DSNAM, str, 44);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vtoc.c:761:2: warning: ‘strncpy’ output may be truncated copying 13 bytes from
a string of length 79 [-Wstringop-truncation]
strncpy((char *)f1->DS1SYSCD, str, 13);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vtoc.c: In function ‘vtoc_volume_label_set_volser’:
vtoc.c:401:2: warning: ‘strncpy’ output may be truncated copying 6 bytes from a
string of length 6 [-Wstringop-truncation]
strncpy(vlabel->volid, s, VOLSER_LENGTH);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is based on the s390-tools-1.39.0 version.
Changes on top of s390-tools-1.39.0:
- Add MIT license to all source files
- Add LICENSE file
- Transform REAMDE to README.md (markdown)
- Add AUTHORS.md file
- Add CONTRIBUTING.md file
- Move changelog from README to CHANGELOG.md file
Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
