diff options
| -rw-r--r-- | src/common/ip.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/common/ip.c b/src/common/ip.c index b01e0d0e619..cd73d49679d 100644 --- a/src/common/ip.c +++ b/src/common/ip.c @@ -232,8 +232,18 @@ getaddrinfo_unix(const char *path, const struct addrinfo *hintsp, aip->ai_addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(path); } + /* + * The standard recommendation for filling sun_len is to set it to the + * struct size (independently of the actual path length). However, that + * draws an integer-overflow warning on AIX 7.1, where sun_len is just + * uint8 yet the struct size exceeds 255 bytes. It's likely that nothing + * is paying attention to sun_len on that platform, but we have to do + * something with it. To suppress the warning, clamp the struct size to + * what will fit in sun_len. + */ #ifdef HAVE_STRUCT_SOCKADDR_STORAGE_SS_LEN - unp->sun_len = sizeof(struct sockaddr_un); + unp->sun_len = Min(sizeof(struct sockaddr_un), + ((size_t) 1 << (sizeof(unp->sun_len) * BITS_PER_BYTE)) - 1); #endif return 0; |