[libvirt] [PATCH] maint: avoid C99 loop declaration
Commit 3d0e3c1 reintroduced a problem previously squelched in
commit 7e5aa78. Add a syntax check this time around.
util/virutil.c: In function 'virGetGroupList':
util/virutil.c:1015: error: 'for' loop initial declaration used outside C99 mode
* cfg.mk (sc_prohibit_loop_var_decl): New rule.
* src/util/virutil.c (virGetGroupList): Fix offender.
Signed-off-by: Eric Blake <eblake(a)redhat.com>
---
Pushing under the build-breaker rule.
cfg.mk | 12 +++++++++---
src/util/virutil.c | 8 ++++----
2 files changed, 13 insertions(+), 7 deletions(-)
diff --git a/cfg.mk b/cfg.mk
index 13de268..791c393 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -546,15 +546,21 @@ sc_avoid_attribute_unused_in_header:
$(_sc_search_regexp)
sc_prohibit_int_ijk:
- @prohibit='\<(int|unsigned) ([^(]* )*(i|j|k)(\s|,|;)' \
+ @prohibit='\<(int|unsigned) ([^(]* )*(i|j|k)(\s|,|;)' \
halt='use size_t, not int/unsigned int for loop vars i, j, k' \
$(_sc_search_regexp)
sc_prohibit_loop_iijjkk:
- @prohibit='\<(int|unsigned) ([^=]+ )*(ii|jj|kk)(\s|,|;)' \
- halt='use i, j, k for loop iterators, not ii, jj, kk' \
+ @prohibit='\<(int|unsigned) ([^=]+ )*(ii|jj|kk)(\s|,|;)' \
+ halt='use i, j, k for loop iterators, not ii, jj, kk' \
$(_sc_search_regexp)
+# RHEL 5 gcc can't grok "for (int i..."
+sc_prohibit_loop_var_decl:
+ @prohibit='\<for *\(\w+[ *]+\w+' \
+ in_vc_files='\.[ch]$$' \
+ halt='declare loop iterators outside the for statement' \
+ $(_sc_search_regexp)
# Many of the function names below came from this filter:
# git grep -B2 '\<_('|grep -E '\.c- *[[:alpha:]_][[:alnum:]_]*
?\(.*[,;]$' \
diff --git a/src/util/virutil.c b/src/util/virutil.c
index 3de72ea..34f5998 100644
--- a/src/util/virutil.c
+++ b/src/util/virutil.c
@@ -1010,18 +1010,18 @@ virGetGroupList(uid_t uid, gid_t gid, gid_t **list)
}
if (gid != (gid_t)-1) {
- size_t n = ret;
+ size_t i;
- for (size_t i = 0; i < ret; i++) {
+ for (i = 0; i < ret; i++) {
if ((*list)[i] == gid)
goto cleanup;
}
- if (VIR_APPEND_ELEMENT(*list, n, gid) < 0) {
+ if (VIR_APPEND_ELEMENT(*list, i, gid) < 0) {
ret = -1;
VIR_FREE(*list);
goto cleanup;
} else {
- ret = n;
+ ret = i;
}
}
--
1.8.3.1