https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=279054
Bug ID: 279054
Summary: Compile failure when #include <netlink/netlink_snl.h>
in C++ code
Product: Base System
Version: 14.0-STABLE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: misc
Assignee: [email protected]
Reporter: [email protected]
Both FreeBSD 14 and 15 generated the same errors.
C++ Codes:
```
#include <netlink/netlink_snl.h>
int main()
{
snl_state st{};
return 0;
}
```
Errors:
In file included from main.cpp:1:
/usr/include/netlink/netlink_snl.h:83:24: error: cannot initialize a variable
of type 'struct linear_buffer *' with an rvalue of type 'void *'
83 | struct linear_buffer *lb = calloc(1, size);
| ^ ~~~~~~~~~~~~~~~
/usr/include/netlink/netlink_snl.h:107:9: error: cannot initialize return
object of type 'char *' with an lvalue of type 'void *'
107 | return (data);
| ^~~~~~
/usr/include/netlink/netlink_snl.h:278:12: error: assigning to 'char *' from
incompatible type 'void *'
278 | ss->buf = malloc(ss->bufsize);
| ^~~~~~~~~~~~~~~~~~~
/usr/include/netlink/netlink_snl.h:498:2: error: no matching function for call
to 'snl_parse_fields'
498 | snl_parse_fields(ss, hdr, parser->in_hdr_size, parser->fp,
parser->fp_size, target);
| ^~~~~~~~~~~~~~~~
/usr/include/netlink/netlink_snl.h:479:1: note: candidate function not viable:
cannot convert argument of incomplete type 'void *' to 'struct nlmsghdr *' for
2nd argument
479 | snl_parse_fields(struct snl_state *ss, struct nlmsghdr *hdr, int hdrlen
__unused,
| ^ ~~~~~~~~~~~~~~~~~~~~
/usr/include/netlink/netlink_snl.h:619:8: error: cannot initialize a variable
of type 'char *' with an rvalue of type 'void *'
619 | char *buf = snl_allocz(ss, maxlen + 1);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/netlink/netlink_snl.h:636:3: error: no matching function for call
to 'strlcpy'
636 | strlcpy(target, tmp, (size_t)arg);
| ^~~~~~~
/usr/include/string.h:98:9: note: candidate function not viable: cannot convert
argument of incomplete type 'void *' to 'char *__restrict' for 1st argument
98 | size_t strlcpy(char * __restrict, const char * __restrict, size_t);
| ^ ~~~~~~
In file included from main.cpp:1:
/usr/include/netlink/netlink_snl.h:649:9: error: cannot initialize a variable
of type 'char *' with an rvalue of type 'void *'
649 | char *buf = snl_allocz(ss, maxlen);
| ^ ~~~~~~~~~~~~~~~~~~~~~~
/usr/include/netlink/netlink_snl.h:678:21: error: cannot initialize a variable
of type 'struct snl_parray *' with an lvalue of type 'void *'
678 | struct snl_parray *array = target;
| ^ ~~~~~~
/usr/include/netlink/netlink_snl.h:685:17: error: assigning to 'void **' from
incompatible type 'void *'
685 | array->items = snl_allocz(ss, size * sizeof(void *));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/netlink/netlink_snl.h:701:2: error: assigning to 'struct nlattr *'
from incompatible type 'void *'
701 | NLA_FOREACH(nla, NLA_DATA(container_nla),
NLA_DATA_LEN(container_nla)) {
|
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/netlink/netlink_snl.h:66:22: note: expanded from macro
'NLA_FOREACH'
66 | for (_attr = (_start); \
| ^~~~~~~~
/usr/include/netlink/netlink_snl.h:715:11: error: cannot initialize a variable
of type 'void **' with an rvalue of type 'void *'
715 | void **new_array = snl_allocz(ss, new_size
*sizeof(void *));
| ^
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/netlink/netlink_snl.h:828:26: error: cannot initialize a variable
of type 'struct snl_attr_bitset *' with an lvalue of type 'void *'
828 | struct snl_attr_bitset *target = _target;
| ^ ~~~~~~~
/usr/include/netlink/netlink_snl.h:864:26: error: cannot initialize a variable
of type 'struct snl_attr_bitset *' with an lvalue of type 'void *'
864 | struct snl_attr_bitset *target = _target;
| ^ ~~~~~~~
/usr/include/netlink/netlink_snl.h:984:11: error: no matching function for call
to 'snl_parse_attrs_raw'
984 | return (snl_parse_attrs_raw(ss, data, len, ps->np,
ps->np_size, attrs));
| ^~~~~~~~~~~~~~~~~~~
/usr/include/netlink/netlink_snl.h:448:1: note: candidate function not viable:
cannot convert argument of incomplete type 'void *' to 'struct nlattr *' for
2nd argument
448 | snl_parse_attrs_raw(struct snl_state *ss, struct nlattr *nla_head, int
len,
| ^ ~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/netlink/netlink_snl.h:1026:13: error: assigning to 'char *' from
incompatible type 'void *'
1026 | nw->base = snl_allocz(ss, nw->size);
| ^~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/netlink/netlink_snl.h:1064:14: error: assigning to 'char *' from
incompatible type 'void *'
1064 | nw->base = new_base;
| ^~~~~~~~
16 errors generated.
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