diff options
Diffstat (limited to 'libc/dns/net/hosts_cache.c')
| -rw-r--r-- | libc/dns/net/hosts_cache.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/libc/dns/net/hosts_cache.c b/libc/dns/net/hosts_cache.c index deafb78b7..5038986be 100644 --- a/libc/dns/net/hosts_cache.c +++ b/libc/dns/net/hosts_cache.c @@ -121,7 +121,7 @@ static int cmp_hcent_name(const void *a, const void *b) return hstrcmp(na, nb); } -static struct hcent *_hcfindname(const char *name) +static struct hcent *_hcfindname_exact(const char *name) { size_t first, last, mid; struct hcent *cur = NULL; @@ -162,6 +162,33 @@ found: return cur; } +static struct hcent *_hcfindname(const char *name) +{ + struct hcent *ent; + char namebuf[MAX_HOSTLEN]; + char *p; + char *dot; + + ent = _hcfindname_exact(name); + if (!ent && strlen(name) < sizeof(namebuf)) { + strcpy(namebuf, name); + p = namebuf; + do { + dot = strchr(p, '.'); + if (!dot) + break; + if (dot > p) { + *(dot - 1) = '*'; + ent = _hcfindname_exact(dot - 1); + } + p = dot + 1; + } + while (!ent); + } + + return ent; +} + /* * Find next name on line, if any. * |