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ignore any ioctl() errors that may occur during interface

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iteration (after reporting them); in particular, do not INSIST() that
no such errors occur.  Clarify the way this works by using the new
ISC_R_IGNORE result code.
This commit is contained in:
Andreas Gustafsson
2000-02-07 18:39:20 +00:00
parent 3a2487c9e3
commit 461a00bbde
3 changed files with 16 additions and 20 deletions
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14
lib/isc/unix/ifiter_ioctl.c
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@@ -175,9 +175,9 @@ isc_interfaceiter_create(isc_mem_t *mctx, isc_interfaceiter_t **iterp)
/*
* Get information about the current interface to iter->current.
* If successful, return ISC_R_SUCCESS.
* If the interface has an unsupported address family,
* return ISC_R_FAILURE. In case of other failure,
* return ISC_R_UNEXPECTED.
* If the interface has an unsupported address family, or if
* some operation on it fails, return ISC_R_IGNORE to make
* the higher-level iterator code ignore it.
*/
static isc_result_t
@@ -196,7 +196,7 @@ internal_current(isc_interfaceiter_t *iter) {
family = lifreq.lifr_addr.ss_family;
if (family != AF_INET && family != AF_INET6)
return (ISC_R_FAILURE);
return (ISC_R_IGNORE);
memset(&iter->current, 0, sizeof(iter->current));
iter->current.af = family;
@@ -216,7 +216,7 @@ internal_current(isc_interfaceiter_t *iter) {
"%s: getting interface flags: %s",
lifreq.lifr_name,
strerror(errno));
return (ISC_R_UNEXPECTED);
return (ISC_R_IGNORE);
}
if ((lifreq.lifr_flags & IFF_UP) != 0)
@@ -235,7 +235,7 @@ internal_current(isc_interfaceiter_t *iter) {
"%s: getting destination address: %s",
lifreq.lifr_name,
strerror(errno));
return (ISC_R_UNEXPECTED);
return (ISC_R_IGNORE);
}
get_addr(family, &iter->current.dstaddress,
(struct sockaddr *)&lifreq.lifr_dstaddr);
@@ -251,7 +251,7 @@ internal_current(isc_interfaceiter_t *iter) {
"%s: getting netmask: %s",
lifreq.lifr_name,
strerror(errno));
return (ISC_R_UNEXPECTED);
return (ISC_R_IGNORE);
}
get_addr(family, &iter->current.netmask,
(struct sockaddr *)&lifreq.lifr_addr);