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Prohibit verbose strcat

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Using strcat directly is more readable than passing strlen
of the copied string to strncat.
This commit is contained in:
Ján Tomko 2016-02-03 09:48:40 +01:00
parent 4d569245f0
commit 28e5655de3
2 changed files with 8 additions and 2 deletions
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6
cfg.mk
View File

@ -1031,6 +1031,12 @@ sc_prohibit_not_strneq:
halt='Use STREQ instead of !STRNEQ' \
$(_sc_search_regexp)
sc_prohibit_verbose_strcat:
@prohibit='strncat\([^,]*,\s+([^,]*),\s+strlen\(\1\)\)' \
in_vc_files='\.[ch]$$' \
halt='Use strcat(a, b) instead of strncat(a, b, strlen(b))' \
$(_sc_search_regexp)
# We don't use this feature of maint.mk.
prev_version_file = /dev/null

4
src/storage/storage_backend_logical.c
View File

@ -123,11 +123,11 @@ virStorageBackendLogicalParseVolExtents(virStorageVolDefPtr vol,
/* Allocate space for 'nextents' regex_unit strings plus a comma for each */
if (VIR_ALLOC_N(regex, nextents * (strlen(regex_unit) + 1) + 1) < 0)
goto cleanup;
strncat(regex, regex_unit, strlen(regex_unit));
strcat(regex, regex_unit);
for (i = 1; i < nextents; i++) {
/* "," is the separator of "devices" field */
strcat(regex, ",");
strncat(regex, regex_unit, strlen(regex_unit));
strcat(regex, regex_unit);
}
if (VIR_ALLOC(reg) < 0)