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Initial implementation of NETCONF confirmed-commit

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This commit is contained in:
Phil Heller 2022-09-30 19:17:13 -06:00
parent 954e5d56fd
commit 284316b646
16 changed files with 1375 additions and 26 deletions
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77
lib/src/clixon_datastore.c
View file

@ -418,10 +418,18 @@ xmldb_delete(clicon_handle h,
if (xmldb_db2file(h, db, &filename) < 0)
goto done;
if (lstat(filename, &sb) == 0)
if (truncate(filename, 0) < 0){
clicon_err(OE_DB, errno, "truncate %s", filename);
goto done;
}
// TODO this had been changed from unlink to truncate some time ago. It was changed back for confirmed-commit
// as the presence of the rollback_db at startup triggers loading of the rollback rather than the startup
// configuration. It might not be sufficient to check for a truncated file. Needs more review, switching back
// to unlink temporarily.
// if (truncate(filename, 0) < 0){
// clicon_err(OE_DB, errno, "truncate %s", filename);
// goto done;
// }
if (unlink(filename) < 0) {
clicon_err(OE_UNIX, errno, "unlink %s: %s", filename, strerror(errno));
goto done;
}
retval = 0;
done:
if (filename)
@ -594,3 +602,64 @@ xmldb_print(clicon_handle h,
done:
return retval;
}
/*! Rename an XML database
* @param[in] h Clicon handle
* @param[in] db Database name
* @param[in] newdb New Database name; if NULL, then same as new
* @param[in] suffix Suffix to append to new database name
* @retval -1 Error
* @retval 0 OK
* @note if newdb and suffix are null, OK is returned as it is a no-op
*/
int
xmldb_rename(clicon_handle h,
const char *db,
const char *newdb,
const char *suffix)
{
char *old;
char *fname;
int retval = -1;
if ((xmldb_db2file(h, db, &old)) < 0) {
goto done;
};
if (newdb == NULL && suffix == NULL)
// no-op
goto done;
newdb = newdb == NULL ? old : newdb;
suffix = suffix == NULL ? "" : suffix;
size_t size = strlen(newdb) + strlen(suffix);
if ((fname = malloc(size + 1)) == NULL) {
clicon_err(OE_UNIX, errno, "malloc: %s", strerror(errno));
goto done;
};
int actual = 0;
if ((actual = snprintf(fname, size, "%s%s", newdb, suffix)) < size) {
clicon_err(OE_UNIX, 0, "snprintf wrote fewer bytes (%d) than requested (%zu)", actual, size);
goto done;
};
if ((rename(old, fname)) < 0) {
clicon_err(OE_UNIX, errno, "rename: %s", strerror(errno));
goto done;
};
retval = 0;
done:
if (old)
free(old);
if (fname)
free(fname);
return retval;
}