autofs/SOURCES/autofs-5.1.6-refactor-sss-getautomntent.patch

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2021-04-16 06:10:06 +00:00
autofs-5.1.6 - refactor sss getautomntent()
From: Ian Kent <raven@themaw.net>
Refactor the sss getautomntent_r() to consolidate the error handling in
one location.
Also add the missing ECONREFUSED handling while we are at it.
Signed-off-by: Ian Kent <raven@themaw.net>
---
CHANGELOG | 1 +
modules/lookup_sss.c | 88 +++++++++++++++++++++++---------------------------
2 files changed, 42 insertions(+), 47 deletions(-)
diff --git a/CHANGELOG b/CHANGELOG
index 5ccd787..ecd54e9 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -100,6 +100,7 @@ xx/xx/2018 autofs-5.1.5
- fix retries check in setautomntent_wait().
- refactor sss setautomntent().
- improve sss setautomntent() error handling.
+- refactor sss getautomntent().
19/12/2017 autofs-5.1.4
- fix spec file url.
diff --git a/modules/lookup_sss.c b/modules/lookup_sss.c
index e1ed83c..5addd87 100644
--- a/modules/lookup_sss.c
+++ b/modules/lookup_sss.c
@@ -377,6 +377,40 @@ static int endautomntent(unsigned int logopt,
return ret;
}
+static int getautomntent(unsigned int logopt,
+ struct lookup_context *ctxt,
+ char **key, char **value, int count, void *sss_ctxt)
+{
+ char buf[MAX_ERR_BUF];
+ char *estr;
+ int ret = NSS_STATUS_UNAVAIL;
+
+ ret = ctxt->getautomntent_r(key, value, sss_ctxt);
+ if (ret) {
+ /* Host has gone down */
+ if (ret == ECONNREFUSED)
+ return NSS_STATUS_UNKNOWN;
+ if (ret != ENOENT)
+ goto error;
+ if (!count) {
+ ret = NSS_STATUS_NOTFOUND;
+ goto free;
+ }
+ goto error;
+ }
+ return ret;
+
+error:
+ estr = strerror_r(ret, buf, MAX_ERR_BUF);
+ error(logopt, MODPREFIX "getautomntent: %s", estr);
+free:
+ if (*key)
+ free(*key);
+ if (*value)
+ free(*value);
+ return ret;
+}
+
int lookup_read_master(struct master *master, time_t age, void *context)
{
struct lookup_context *ctxt = (struct lookup_context *) context;
@@ -399,30 +433,12 @@ int lookup_read_master(struct master *master, time_t age, void *context)
while (1) {
key = NULL;
value = NULL;
- ret = ctxt->getautomntent_r(&key, &value, sss_ctxt);
- if (ret && ret != ENOENT) {
- char *estr = strerror_r(ret, buf, MAX_ERR_BUF);
- error(logopt, MODPREFIX "getautomntent_r: %s", estr);
+ ret = getautomntent(logopt, ctxt, &key, &value, count, sss_ctxt);
+ if (ret) {
endautomntent(logopt, ctxt, &sss_ctxt);
- if (key)
- free(key);
- if (value)
- free(value);
- return NSS_STATUS_UNAVAIL;
- }
- if (ret == ENOENT) {
- if (!count) {
- char *estr = strerror_r(ret, buf, MAX_ERR_BUF);
- error(logopt, MODPREFIX "getautomntent_r: %s", estr);
- endautomntent(logopt, ctxt, &sss_ctxt);
- if (key)
- free(key);
- if (value)
- free(value);
- return NSS_STATUS_NOTFOUND;
- }
- break;
+ return ret;
}
+
count++;
buffer_len = strlen(key) + 1 + strlen(value) + 2;
@@ -470,7 +486,6 @@ int lookup_read_map(struct autofs_point *ap, time_t age, void *context)
struct map_source *source;
struct mapent_cache *mc;
void *sss_ctxt = NULL;
- char buf[MAX_ERR_BUF];
char *key;
char *value = NULL;
char *s_key;
@@ -502,31 +517,10 @@ int lookup_read_map(struct autofs_point *ap, time_t age, void *context)
while (1) {
key = NULL;
value = NULL;
- ret = ctxt->getautomntent_r(&key, &value, sss_ctxt);
- if (ret && ret != ENOENT) {
- char *estr = strerror_r(ret, buf, MAX_ERR_BUF);
- error(ap->logopt,
- MODPREFIX "getautomntent_r: %s", estr);
+ ret = getautomntent(ap->logopt, ctxt, &key, &value, count, sss_ctxt);
+ if (ret) {
endautomntent(ap->logopt, ctxt, &sss_ctxt);
- if (key)
- free(key);
- if (value)
- free(value);
- return NSS_STATUS_UNAVAIL;
- }
- if (ret == ENOENT) {
- if (!count) {
- char *estr = strerror_r(ret, buf, MAX_ERR_BUF);
- error(ap->logopt,
- MODPREFIX "getautomntent_r: %s", estr);
- endautomntent(ap->logopt, ctxt, &sss_ctxt);
- if (key)
- free(key);
- if (value)
- free(value);
- return NSS_STATUS_NOTFOUND;
- }
- break;
+ return ret;
}
/*