diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/posix/getaddrinfo.c | 44 |
2 files changed, 25 insertions, 24 deletions
@@ -1,3 +1,8 @@ +2004-08-17 Ulrich Drepper <drepper@redhat.com> + + * sysdeps/posix/getaddrinfo.c: Fix memory handling of + ai_canonname. + 2004-08-16 Ulrich Drepper <drepper@redhat.com> * resolv/nss_dns/dns-canon.c (_nss_dns_getcanonname_r): Don't use diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c index 9de2860..d87b965 100644 --- a/sysdeps/posix/getaddrinfo.c +++ b/sysdeps/posix/getaddrinfo.c @@ -738,7 +738,6 @@ gaih_inet (const char *name, const struct gaih_service *service, struct gaih_servtuple *st2; struct gaih_addrtuple *at2 = at; size_t socklen; - size_t canonlen; sa_family_t family; /* @@ -806,19 +805,22 @@ gaih_inet (const char *name, const struct gaih_service *service, return -EAI_IDN_ENCODE; } /* In case the output string is the same as the input - string no new string has been allocated. */ - if (out != canon) - { - canon = strdupa (out); - free (out); - } + string no new string has been allocated. Otherwise + make a copy. */ + if (out == canon) + goto make_copy; } + else #endif - - canonlen = strlen (canon) + 1; + { +#ifdef HAVE_LIBIDN + make_copy: +#endif + canon = strdup (canon); + if (canon == NULL) + return -EAI_MEMORY; + } } - else - canonlen = 0; if (at2->family == AF_INET6) { @@ -841,7 +843,7 @@ gaih_inet (const char *name, const struct gaih_service *service, for (st2 = st; st2 != NULL; st2 = st2->next) { - *pai = malloc (sizeof (struct addrinfo) + socklen + canonlen); + *pai = malloc (sizeof (struct addrinfo) + socklen); if (*pai == NULL) return -EAI_MEMORY; @@ -851,6 +853,11 @@ gaih_inet (const char *name, const struct gaih_service *service, (*pai)->ai_protocol = st2->protocol; (*pai)->ai_addrlen = socklen; (*pai)->ai_addr = (void *) (*pai + 1); + + /* We only add the canonical name once. */ + (*pai)->ai_canonname = canon; + canon = NULL; + #if SALEN (*pai)->ai_addr->sa_len = socklen; #endif /* SALEN */ @@ -877,18 +884,6 @@ gaih_inet (const char *name, const struct gaih_service *service, memset (sinp->sin_zero, '\0', sizeof (sinp->sin_zero)); } - if (canonlen != 0) - { - (*pai)->ai_canonname = ((void *) (*pai) + - sizeof (struct addrinfo) + socklen); - strcpy ((*pai)->ai_canonname, canon); - - /* We do not need to allocate the canonical name anymore. */ - canonlen = 0; - } - else - (*pai)->ai_canonname = NULL; - (*pai)->ai_next = NULL; pai = &((*pai)->ai_next); } @@ -1445,6 +1440,7 @@ freeaddrinfo (struct addrinfo *ai) { p = ai; ai = ai->ai_next; + free (p->ai_canonname); free (p); } } |