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autofs-5.1.6 - refactor sss getautomntent()
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From: Ian Kent <raven@themaw.net>
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Refactor the sss getautomntent_r() to consolidate the error handling in
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one location.
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Also add the missing ECONREFUSED handling while we are at it.
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Signed-off-by: Ian Kent <raven@themaw.net>
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---
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CHANGELOG | 1 +
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modules/lookup_sss.c | 88 +++++++++++++++++++++++---------------------------
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2 files changed, 42 insertions(+), 47 deletions(-)
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diff --git a/CHANGELOG b/CHANGELOG
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index 5ccd787..ecd54e9 100644
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--- a/CHANGELOG
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+++ b/CHANGELOG
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@@ -100,6 +100,7 @@ xx/xx/2018 autofs-5.1.5
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- fix retries check in setautomntent_wait().
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- refactor sss setautomntent().
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- improve sss setautomntent() error handling.
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+- refactor sss getautomntent().
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19/12/2017 autofs-5.1.4
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- fix spec file url.
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diff --git a/modules/lookup_sss.c b/modules/lookup_sss.c
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index e1ed83c..5addd87 100644
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--- a/modules/lookup_sss.c
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+++ b/modules/lookup_sss.c
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@@ -377,6 +377,40 @@ static int endautomntent(unsigned int logopt,
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return ret;
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}
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+static int getautomntent(unsigned int logopt,
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+ struct lookup_context *ctxt,
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+ char **key, char **value, int count, void *sss_ctxt)
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+{
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+ char buf[MAX_ERR_BUF];
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+ char *estr;
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+ int ret = NSS_STATUS_UNAVAIL;
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+
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+ ret = ctxt->getautomntent_r(key, value, sss_ctxt);
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+ if (ret) {
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+ /* Host has gone down */
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+ if (ret == ECONNREFUSED)
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+ return NSS_STATUS_UNKNOWN;
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+ if (ret != ENOENT)
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+ goto error;
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+ if (!count) {
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+ ret = NSS_STATUS_NOTFOUND;
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+ goto free;
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+ }
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+ goto error;
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+ }
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+ return ret;
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+
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+error:
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+ estr = strerror_r(ret, buf, MAX_ERR_BUF);
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+ error(logopt, MODPREFIX "getautomntent: %s", estr);
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+free:
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+ if (*key)
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+ free(*key);
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+ if (*value)
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+ free(*value);
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+ return ret;
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+}
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+
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int lookup_read_master(struct master *master, time_t age, void *context)
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{
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struct lookup_context *ctxt = (struct lookup_context *) context;
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@@ -399,30 +433,12 @@ int lookup_read_master(struct master *master, time_t age, void *context)
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while (1) {
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key = NULL;
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value = NULL;
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- ret = ctxt->getautomntent_r(&key, &value, sss_ctxt);
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- if (ret && ret != ENOENT) {
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- char *estr = strerror_r(ret, buf, MAX_ERR_BUF);
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- error(logopt, MODPREFIX "getautomntent_r: %s", estr);
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+ ret = getautomntent(logopt, ctxt, &key, &value, count, sss_ctxt);
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+ if (ret) {
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endautomntent(logopt, ctxt, &sss_ctxt);
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- if (key)
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- free(key);
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- if (value)
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- free(value);
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- return NSS_STATUS_UNAVAIL;
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- }
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- if (ret == ENOENT) {
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- if (!count) {
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- char *estr = strerror_r(ret, buf, MAX_ERR_BUF);
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- error(logopt, MODPREFIX "getautomntent_r: %s", estr);
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- endautomntent(logopt, ctxt, &sss_ctxt);
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- if (key)
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- free(key);
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- if (value)
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- free(value);
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- return NSS_STATUS_NOTFOUND;
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- }
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- break;
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+ return ret;
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}
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+
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count++;
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buffer_len = strlen(key) + 1 + strlen(value) + 2;
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@@ -470,7 +486,6 @@ int lookup_read_map(struct autofs_point *ap, time_t age, void *context)
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struct map_source *source;
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struct mapent_cache *mc;
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void *sss_ctxt = NULL;
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- char buf[MAX_ERR_BUF];
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char *key;
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char *value = NULL;
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char *s_key;
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@@ -502,31 +517,10 @@ int lookup_read_map(struct autofs_point *ap, time_t age, void *context)
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while (1) {
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key = NULL;
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value = NULL;
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- ret = ctxt->getautomntent_r(&key, &value, sss_ctxt);
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- if (ret && ret != ENOENT) {
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- char *estr = strerror_r(ret, buf, MAX_ERR_BUF);
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- error(ap->logopt,
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- MODPREFIX "getautomntent_r: %s", estr);
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+ ret = getautomntent(ap->logopt, ctxt, &key, &value, count, sss_ctxt);
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+ if (ret) {
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endautomntent(ap->logopt, ctxt, &sss_ctxt);
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- if (key)
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- free(key);
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- if (value)
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- free(value);
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- return NSS_STATUS_UNAVAIL;
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- }
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- if (ret == ENOENT) {
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- if (!count) {
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- char *estr = strerror_r(ret, buf, MAX_ERR_BUF);
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- error(ap->logopt,
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- MODPREFIX "getautomntent_r: %s", estr);
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- endautomntent(ap->logopt, ctxt, &sss_ctxt);
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- if (key)
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- free(key);
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- if (value)
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- free(value);
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- return NSS_STATUS_NOTFOUND;
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- }
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- break;
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+ return ret;
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}
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/*
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