1 files changed, 0 insertions, 328 deletions
diff --git a/libblkid/evaluate.c b/libblkid/evaluate.c
deleted file mode 100644
index 2e1ca574d..000000000
--- a/libblkid/evaluate.c
+++ /dev/null
@@ -1,328 +0,0 @@
-/*
- * evaluate.c - very high-level API to evaluate LABELs or UUIDs
- *
- * Copyright (C) 2009 Karel Zak <kzak@redhat.com>
- *
- * This file may be redistributed under the terms of the
- * GNU Lesser General Public License.
- */
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <ctype.h>
-#include <sys/types.h>
-#ifdef HAVE_SYS_STAT_H
-#include <sys/stat.h>
-#endif
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
-#include <stdint.h>
-#include <stdarg.h>
-
-#include "pathnames.h"
-#include "canonicalize.h"
-
-#include "blkidP.h"
-
-/**
- * SECTION:evaluate
- * @title: Tags and Spec evaluation
- * @short_description: top-level API for LABEL and UUID evaluation.
- *
- * This API provides very simple and portable way how evaluate LABEL and UUID
- * tags.  The blkid_evaluate_tag() and blkid_evaluate_spec() work on 2.4 and
- * 2.6 systems and on systems with or without udev. Currently, the libblkid
- * library supports "udev" and "scan" methods. The "udev" method uses udev
- * /dev/disk/by-* symlinks and the "scan" method scans all block devices from
- * the /proc/partitions file. The evaluation could be controlled by the
- * /etc/blkid.conf config file. The default is to try "udev" and then "scan"
- * method.
- *
- * The blkid_evaluate_tag() also automatically informs udevd when an obsolete
- * /dev/disk/by-* symlink is detected.
- *
- * If you are not sure how translate LABEL or UUID to the device name use this
- * API.
- */
-
-#ifdef CONFIG_BLKID_VERIFY_UDEV
-/* returns zero when the device has NAME=value (LABEL/UUID) */
-static int verify_tag(const char *devname, const char *name, const char *value)
-{
-	blkid_probe pr;
-	int fd = -1, rc = -1;
-	size_t len;
-	const char *data;
-	int errsv = 0;
-
-	pr = blkid_new_probe();
-	if (!pr)
-		return -1;
-
-	blkid_probe_enable_superblocks(pr, TRUE);
-	blkid_probe_set_superblocks_flags(pr,
-			BLKID_SUBLKS_LABEL | BLKID_SUBLKS_UUID);
-
-	blkid_probe_enable_partitions(pr, TRUE);
-	blkid_probe_set_partitions_flags(pr, BLKID_PARTS_ENTRY_DETAILS);
-
-	fd = open(devname, O_RDONLY|O_CLOEXEC);
-	if (fd < 0) {
-		errsv = errno;
-		goto done;
-	}
-	if (blkid_probe_set_device(pr, fd, 0, 0))
-		goto done;
-	rc = blkid_do_safeprobe(pr);
-	if (rc)
-		goto done;
-	rc = blkid_probe_lookup_value(pr, name, &data, &len);
-	if (!rc)
-		rc = memcmp(value, data, len);
-done:
-	DBG(DEBUG_EVALUATE, printf("%s: %s verification %s\n",
-			devname, name, rc == 0 ? "PASS" : "FAILED"));
-	if (fd >= 0)
-		close(fd);
-	blkid_free_probe(pr);
-
-	/* for non-root users we use unverified udev links */
-	return errsv == EACCES ? 0 : rc;
-}
-#endif /* CONFIG_BLKID_VERIFY_UDEV*/
-
-/**
- * blkid_send_uevent:
- * @devname: absolute path to the device
- * @action: event string
- *
- * Returns: -1 in case of failure, or 0 on success.
- */
-int blkid_send_uevent(const char *devname, const char *action)
-{
-	char uevent[PATH_MAX];
-	struct stat st;
-	FILE *f;
-	int rc = -1;
-
-	DBG(DEBUG_EVALUATE, printf("%s: uevent '%s' requested\n", devname, action));
-
-	if (!devname || !action)
-		return -1;
-	if (stat(devname, &st) || !S_ISBLK(st.st_mode))
-		return -1;
-
-	snprintf(uevent, sizeof(uevent), "/sys/dev/block/%d:%d/uevent",
-			major(st.st_rdev), minor(st.st_rdev));
-
-	f = fopen(uevent, "w");
-	if (f) {
-		rc = 0;
-		if (fputs(action, f) >= 0)
-			rc = 0;
-		fclose(f);
-	}
-	DBG(DEBUG_EVALUATE, printf("%s: send uevent %s\n",
-			uevent, rc == 0 ? "SUCCES" : "FAILED"));
-	return rc;
-}
-
-static char *evaluate_by_udev(const char *token, const char *value, int uevent)
-{
-	char dev[PATH_MAX];
-	char *path = NULL;
-	size_t len;
-	struct stat st;
-
-	DBG(DEBUG_EVALUATE,
-	    printf("evaluating by udev %s=%s\n", token, value));
-
-	if (!strcmp(token, "UUID"))
-		strcpy(dev, _PATH_DEV_BYUUID "/");
-	else if (!strcmp(token, "LABEL"))
-		strcpy(dev, _PATH_DEV_BYLABEL "/");
-	else if (!strcmp(token, "PARTLABEL"))
-		strcpy(dev, _PATH_DEV_BYPARTLABEL "/");
-	else if (!strcmp(token, "PARTUUID"))
-		strcpy(dev, _PATH_DEV_BYPARTUUID "/");
-	else {
-		DBG(DEBUG_EVALUATE,
-		    printf("unsupported token %s\n", token));
-		return NULL;	/* unsupported tag */
-	}
-
-	len = strlen(dev);
-	if (blkid_encode_string(value, &dev[len], sizeof(dev) - len) != 0)
-		return NULL;
-
-	DBG(DEBUG_EVALUATE,
-	    printf("expected udev link: %s\n", dev));
-
-	if (stat(dev, &st))
-		goto failed;	/* link or device does not exist */
-
-	if (!S_ISBLK(st.st_mode))
-		return NULL;
-
-	path = canonicalize_path(dev);
-	if (!path)
-		return NULL;
-
-#ifdef CONFIG_BLKID_VERIFY_UDEV
-	if (verify_tag(path, token, value))
-		goto failed;
-#endif
-	return path;
-
-failed:
-	DBG(DEBUG_EVALUATE, printf("failed to evaluate by udev\n"));
-
-	if (uevent && path)
-		blkid_send_uevent(path, "change");
-	free(path);
-	return NULL;
-}
-
-static char *evaluate_by_scan(const char *token, const char *value,
-		blkid_cache *cache, struct blkid_config *conf)
-{
-	blkid_cache c = cache ? *cache : NULL;
-	char *res;
-
-	DBG(DEBUG_EVALUATE,
-	    printf("evaluating by blkid scan %s=%s\n", token, value));
-
-	if (!c) {
-		char *cachefile = blkid_get_cache_filename(conf);
-		blkid_get_cache(&c, cachefile);
-		free(cachefile);
-	}
-	if (!c)
-		return NULL;
-
-	res = blkid_get_devname(c, token, value);
-
-	if (cache)
-		*cache = c;
-	else
-		blkid_put_cache(c);
-
-	return res;
-}
-
-/**
- * blkid_evaluate_tag:
- * @token: token name (e.g "LABEL" or "UUID") or unparsed tag (e.g. "LABEL=foo")
- * @value: token data (e.g. "foo")
- * @cache: pointer to cache (or NULL when you don't want to re-use the cache)
- *
- * Returns: allocated string with a device name.
- */
-char *blkid_evaluate_tag(const char *token, const char *value, blkid_cache *cache)
-{
-	struct blkid_config *conf = NULL;
-	char *t = NULL, *v = NULL;
-	char *ret = NULL;
-	int i;
-
-	if (!token)
-		return NULL;
-
-	if (!cache || !*cache)
-		blkid_init_debug(0);
-
-	DBG(DEBUG_EVALUATE,
-	    printf("evaluating  %s%s%s\n", token, value ? "=" : "",
-		   value ? value : ""));
-
-	if (!value) {
-		if (!strchr(token, '=')) {
-			ret = strdup(token);
-			goto out;
-		}
-		blkid_parse_tag_string(token, &t, &v);
-		if (!t || !v)
-			goto out;
-		token = t;
-		value = v;
-	}
-
-	conf = blkid_read_config(NULL);
-	if (!conf)
-		goto out;
-
-	for (i = 0; i < conf->nevals; i++) {
-		if (conf->eval[i] == BLKID_EVAL_UDEV)
-			ret = evaluate_by_udev(token, value, conf->uevent);
-		else if (conf->eval[i] == BLKID_EVAL_SCAN)
-			ret = evaluate_by_scan(token, value, cache, conf);
-		if (ret)
-			break;
-	}
-
-	DBG(DEBUG_EVALUATE,
-	    printf("%s=%s evaluated as %s\n", token, value, ret));
-out:
-	blkid_free_config(conf);
-	free(t);
-	free(v);
-	return ret;
-}
-
-/**
- * blkid_evaluate_spec:
- * @spec: unparsed tag (e.g. "LABEL=foo") or path (e.g. /dev/dm-0)
- * @cache: pointer to cache (or NULL when you don't want to re-use the cache)
- *
- * All returned paths are canonicalized, device-mapper paths are converted
- * to the /dev/mapper/name format.
- *
- * Returns: allocated string with a device name.
- */
-char *blkid_evaluate_spec(const char *spec, blkid_cache *cache)
-{
-	char *t = NULL, *v = NULL, *res;
-
-	if (!spec)
-		return NULL;
-
-	if (strchr(spec, '=') &&
-	    blkid_parse_tag_string(spec, &t, &v) != 0)	/* parse error */
-		return NULL;
-
-	if (v)
-		res = blkid_evaluate_tag(t, v, cache);
-	else
-		res = canonicalize_path(spec);
-
-	free(t);
-	free(v);
-	return res;
-}
-
-
-#ifdef TEST_PROGRAM
-int main(int argc, char *argv[])
-{
-	blkid_cache cache = NULL;
-	char *res;
-
-	if (argc < 2) {
-		fprintf(stderr, "usage: %s <tag> | <spec>\n", argv[0]);
-		return EXIT_FAILURE;
-	}
-
-	blkid_init_debug(0);
-
-	res = blkid_evaluate_spec(argv[1], &cache);
-	if (res)
-		printf("%s\n", res);
-	if (cache)
-		blkid_put_cache(cache);
-
-	return res ? EXIT_SUCCESS : EXIT_FAILURE;
-}
-#endif