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assigned issue to
gethostbyname_r(3) may fail to lookup hostname alias over MAXALIASES(>35)
Issue #89
closed
recent MFC of gethostent_r(3) <<cset:ff9a0f5>> eliminate limitation of MAXALIASES in /etc/hosts. but gethostbyname_r(3) is still restricted.
$ grep host /etc/hosts
192.0.2.1 host00 host01 host02 host03 host04 host05 host06 host07 host08 host09 \
host10 host11 host12 host13 host14 host15 host16 host17 host18 host19 \
host20 host21 host22 host23 host24 host25 host26 host27 host28 host29 \
host30 host31 host32 host33 host34 host35 host36
$ ping host36
ping: Cannot resolve "host36" (Unknown host)
Comments (5)
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reporter -
reporter gethostbyname_r(3) still uses static allocated buffer by MAXALIASES.
153 struct hostent * 154 _hf_gethtbyname2(const char *name, int af, struct getnamaddr *info) 155 { ... 160 char *aliases[MAXALIASES]; ... 187 hp = gethostent_r(hf, info->hp, info->buf, info->buflen, 188 info->he); ... 205 for (anum = 0; hp->h_aliases[anum]; anum++) { 206 if (anum >= __arraycount(aliases)) 207 goto nospc; 208 HENT_SCOPY(aliases[anum], hp->h_aliases[anum], 209 ptr, len); 210 } ...
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reporter -
reporter - changed status to resolved
BUGFIX: Issue
#89- gethostbyname_r(3) may fail to lookup hostname alias over MAXALIASES(>35).→ <<cset f2109446e7a6>>
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reporter - edited description
- changed status to closed
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