diff options
| author | Yang Tse <yangsita@gmail.com> | 2007-02-02 16:01:55 +0000 |
|---|---|---|
| committer | Yang Tse <yangsita@gmail.com> | 2007-02-02 16:01:55 +0000 |
| commit | 8337a375dd5bbe6b1dab4b711a5fdbc1664cb298 (patch) | |
| tree | db0960ffcd2b1b0fae7f7ceae97d9a683b8eaaf4 | |
| parent | 8260243be1d2bdfc8ab960c24618430f8c45076c (diff) | |
add debug messages for initialization failures
| -rw-r--r-- | ares/ares_init.c | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/ares/ares_init.c b/ares/ares_init.c index e8371908a..1fd43f4b9 100644 --- a/ares/ares_init.c +++ b/ares/ares_init.c @@ -91,7 +91,8 @@ int ares_init_options(ares_channel *channelptr, struct ares_options *options, int optmask) { ares_channel channel; - int i, status; + int i; + int status = ARES_SUCCESS; struct server_state *server; struct timeval tv; @@ -106,8 +107,10 @@ int ares_init_options(ares_channel *channelptr, struct ares_options *options, #endif channel = malloc(sizeof(struct ares_channeldata)); - if (!channel) + if (!channel) { + *channelptr = NULL; return ARES_ENOMEM; + } /* Set everything to distinguished values so we know they haven't * been set yet. @@ -132,13 +135,31 @@ int ares_init_options(ares_channel *channelptr, struct ares_options *options, /* Initialize configuration by each of the four sources, from highest * precedence to lowest. */ + + if (status == ARES_SUCCESS) { status = init_by_options(channel, options, optmask); - if (status == ARES_SUCCESS) + if (status != ARES_SUCCESS) + DEBUGF(fprintf(stderr, "Error: init_by_options failed: %s\n", + ares_strerror(status))); + } + if (status == ARES_SUCCESS) { status = init_by_environment(channel); - if (status == ARES_SUCCESS) + if (status != ARES_SUCCESS) + DEBUGF(fprintf(stderr, "Error: init_by_environment failed: %s\n", + ares_strerror(status))); + } + if (status == ARES_SUCCESS) { status = init_by_resolv_conf(channel); - if (status == ARES_SUCCESS) + if (status != ARES_SUCCESS) + DEBUGF(fprintf(stderr, "Error: init_by_resolv_conf failed: %s\n", + ares_strerror(status))); + } + if (status == ARES_SUCCESS) { status = init_by_defaults(channel); + if (status != ARES_SUCCESS) + DEBUGF(fprintf(stderr, "Error: init_by_defaults failed: %s\n", + ares_strerror(status))); + } if (status != ARES_SUCCESS) { /* Something failed; clean up memory we may have allocated. */ |