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019928 |
autofs-5.1.1 - implement reinit in yp lookup module
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From: Ian Kent <raven@themaw.net>
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Refactor the yp lookup module to add an implementation for the newly
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added reinit entry point.
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Signed-off-by: Ian Kent <raven@themaw.net>
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---
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modules/lookup_yp.c | 93 +++++++++++++++++++++++++++++++++++++++------------
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1 file changed, 71 insertions(+), 22 deletions(-)
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diff --git a/modules/lookup_yp.c b/modules/lookup_yp.c
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index 1e5a7ed..e31c2cf 100644
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--- a/modules/lookup_yp.c
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+++ b/modules/lookup_yp.c
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@@ -103,27 +103,18 @@ static unsigned int get_map_order(const char *domain, const char *map)
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return (unsigned int) last_changed;
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}
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-int lookup_init(const char *mapfmt,
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- int argc, const char *const *argv, void **context)
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+static int do_init(const char *mapfmt,
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+ int argc, const char *const *argv,
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+ struct lookup_context *ctxt, unsigned int reinit)
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{
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- struct lookup_context *ctxt;
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char buf[MAX_ERR_BUF];
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int err;
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-
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- *context = NULL;
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-
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- ctxt = malloc(sizeof(struct lookup_context));
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- if (!ctxt) {
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- char *estr = strerror_r(errno, buf, MAX_ERR_BUF);
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- logerr(MODPREFIX "malloc: %s", estr);
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- return 1;
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- }
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- memset(ctxt, 0, sizeof(struct lookup_context));
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+ int ret = 0;
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if (argc < 1) {
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- free(ctxt);
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logerr(MODPREFIX "no map name");
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- return 1;
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+ ret = 1;
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+ goto out;
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}
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ctxt->mapname = argv[0];
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ctxt->check_defaults = 1;
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@@ -138,15 +129,15 @@ int lookup_init(const char *mapfmt,
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if (err) {
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logerr(MODPREFIX
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"map %s: %s", ctxt->mapname, yperr_string(err));
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- free(ctxt);
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- return 1;
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+ ret = 1;
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+ goto out;
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}
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ctxt->domainname = strdup(domainname);
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if (!ctxt->domainname) {
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char *estr = strerror_r(errno, buf, MAX_ERR_BUF);
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logerr(MODPREFIX "strdup: %s", estr);
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- free(ctxt);
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- return 1;
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+ ret = 1;
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+ goto out;
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}
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}
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@@ -155,12 +146,45 @@ int lookup_init(const char *mapfmt,
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if (!mapfmt)
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mapfmt = MAPFMT_DEFAULT;
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- ctxt->parse = open_parse(mapfmt, MODPREFIX, argc - 1, argv + 1);
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- if (!ctxt->parse) {
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+ if (reinit) {
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+ ret = reinit_parse(ctxt->parse, mapfmt, MODPREFIX, argc - 1, argv + 1);
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+ if (ret)
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+ logmsg(MODPREFIX "failed to reinit parse context");
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+ } else {
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+ ctxt->parse = open_parse(mapfmt, MODPREFIX, argc - 1, argv + 1);
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+ if (!ctxt->parse) {
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+ logmsg(MODPREFIX "failed to open parse context");
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+ ret = 1;
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+ }
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+ }
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+out:
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+ if (ret && ctxt->domainname)
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+ free(ctxt->domainname);
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+
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+ return ret;
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+}
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+
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+int lookup_init(const char *mapfmt,
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+ int argc, const char *const *argv, void **context)
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+{
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+ struct lookup_context *ctxt;
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+ char buf[MAX_ERR_BUF];
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+
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+ *context = NULL;
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+
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+ ctxt = malloc(sizeof(struct lookup_context));
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+ if (!ctxt) {
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+ char *estr = strerror_r(errno, buf, MAX_ERR_BUF);
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+ logerr(MODPREFIX "malloc: %s", estr);
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+ return 1;
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+ }
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+ memset(ctxt, 0, sizeof(struct lookup_context));
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+
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+ if (do_init(mapfmt, argc, argv, ctxt, 0)) {
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free(ctxt);
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- logmsg(MODPREFIX "failed to open parse context");
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return 1;
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}
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+
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*context = ctxt;
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return 0;
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@@ -169,6 +193,31 @@ int lookup_init(const char *mapfmt,
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int lookup_reinit(const char *mapfmt,
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int argc, const char *const *argv, void **context)
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{
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+ struct lookup_context *ctxt = (struct lookup_context *) *context;
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+ struct lookup_context *new;
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+ char buf[MAX_ERR_BUF];
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+ int ret;
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+
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+ new = malloc(sizeof(struct lookup_context));
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+ if (!new) {
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+ char *estr = strerror_r(errno, buf, MAX_ERR_BUF);
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+ logerr(MODPREFIX "malloc: %s", estr);
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+ return 1;
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+ }
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+ memset(new, 0, sizeof(struct lookup_context));
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+
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+ new->parse = ctxt->parse;
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+ ret = do_init(mapfmt, argc, argv, new, 1);
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+ if (ret) {
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+ free(new);
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+ return 1;
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+ }
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+
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+ *context = new;
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+
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+ free(ctxt->domainname);
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+ free(ctxt);
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+
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return 0;
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}
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