1 files changed, 0 insertions, 500 deletions

diff --git a/libblkid/read.c b/libblkid/read.c
deleted file mode 100644
index 8914cad69..000000000
--- a/libblkid/read.c
+++ /dev/null
@@ -1,500 +0,0 @@
-/*
- * read.c - read the blkid cache from disk, to avoid scanning all devices
- *
- * Copyright (C) 2001, 2003 Theodore Y. Ts'o
- * Copyright (C) 2001 Andreas Dilger
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the
- * GNU Lesser General Public License.
- * %End-Header%
- */
-
-
-#include <stdio.h>
-#include <ctype.h>
-#include <string.h>
-#include <time.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
-
-#include "blkidP.h"
-
-#ifdef HAVE_STDLIB_H
-# ifndef _XOPEN_SOURCE
-#  define _XOPEN_SOURCE 600	/* for inclusion of strtoull */
-# endif
-# include <stdlib.h>
-#endif
-
-#ifdef HAVE_STRTOULL
-#define STRTOULL strtoull /* defined in stdlib.h if you try hard enough */
-#else
-/* FIXME: need to support real strtoull here */
-#define STRTOULL strtoul
-#endif
-
-#ifdef TEST_PROGRAM
-#define blkid_debug_dump_dev(dev)	(debug_dump_dev(dev))
-static void debug_dump_dev(blkid_dev dev);
-#endif
-
-/*
- * File format:
- *
- *	<device [<NAME="value"> ...]>device_name</device>
- *
- *	The following tags are required for each entry:
- *	<ID="id">	unique (within this file) ID number of this device
- *	<TIME="sec.usec"> (time_t and suseconds_t) time this entry was last
- *	                 read from disk
- *	<TYPE="type">	(detected) type of filesystem/data for this partition
- *
- *	The following tags may be present, depending on the device contents
- *	<LABEL="label">	(user supplied) label (volume name, etc)
- *	<UUID="uuid">	(generated) universally unique identifier (serial no)
- */
-
-static char *skip_over_blank(char *cp)
-{
-	while (*cp && isspace(*cp))
-		cp++;
-	return cp;
-}
-
-static char *skip_over_word(char *cp)
-{
-	char ch;
-
-	while ((ch = *cp)) {
-		/* If we see a backslash, skip the next character */
-		if (ch == '\\') {
-			cp++;
-			if (*cp == '\0')
-				break;
-			cp++;
-			continue;
-		}
-		if (isspace(ch) || ch == '<' || ch == '>')
-			break;
-		cp++;
-	}
-	return cp;
-}
-
-static char *strip_line(char *line)
-{
-	char	*p;
-
-	line = skip_over_blank(line);
-
-	p = line + strlen(line) - 1;
-
-	while (*line) {
-		if (isspace(*p))
-			*p-- = '\0';
-		else
-			break;
-	}
-
-	return line;
-}
-
-#if 0
-static char *parse_word(char **buf)
-{
-	char *word, *next;
-
-	word = *buf;
-	if (*word == '\0')
-		return NULL;
-
-	word = skip_over_blank(word);
-	next = skip_over_word(word);
-	if (*next) {
-		char *end = next - 1;
-		if (*end == '"' || *end == '\'')
-			*end = '\0';
-		*next++ = '\0';
-	}
-	*buf = next;
-
-	if (*word == '"' || *word == '\'')
-		word++;
-	return word;
-}
-#endif
-
-/*
- * Start parsing a new line from the cache.
- *
- * line starts with "<device" return 1 -> continue parsing line
- * line starts with "<foo", empty, or # return 0 -> skip line
- * line starts with other, return -BLKID_ERR_CACHE -> error
- */
-static int parse_start(char **cp)
-{
-	char *p;
-
-	p = strip_line(*cp);
-
-	/* Skip comment or blank lines.  We can't just NUL the first '#' char,
-	 * in case it is inside quotes, or escaped.
-	 */
-	if (*p == '\0' || *p == '#')
-		return 0;
-
-	if (!strncmp(p, "<device", 7)) {
-		DBG(DEBUG_READ, printf("found device header: %8s\n", p));
-		p += 7;
-
-		*cp = p;
-		return 1;
-	}
-
-	if (*p == '<')
-		return 0;
-
-	return -BLKID_ERR_CACHE;
-}
-
-/* Consume the remaining XML on the line (cosmetic only) */
-static int parse_end(char **cp)
-{
-	*cp = skip_over_blank(*cp);
-
-	if (!strncmp(*cp, "</device>", 9)) {
-		DBG(DEBUG_READ, printf("found device trailer %9s\n", *cp));
-		*cp += 9;
-		return 0;
-	}
-
-	return -BLKID_ERR_CACHE;
-}
-
-/*
- * Allocate a new device struct with device name filled in.  Will handle
- * finding the device on lines of the form:
- * <device foo=bar>devname</device>
- * <device>devname<foo>bar</foo></device>
- */
-static int parse_dev(blkid_cache cache, blkid_dev *dev, char **cp)
-{
-	char *start, *tmp, *end, *name;
-	int ret;
-
-	if ((ret = parse_start(cp)) <= 0)
-		return ret;
-
-	start = tmp = strchr(*cp, '>');
-	if (!start) {
-		DBG(DEBUG_READ,
-		    printf("blkid: short line parsing dev: %s\n", *cp));
-		return -BLKID_ERR_CACHE;
-	}
-	start = skip_over_blank(start + 1);
-	end = skip_over_word(start);
-
-	DBG(DEBUG_READ, printf("device should be %*s\n",
-			       (int)(end - start), start));
-
-	if (**cp == '>')
-		*cp = end;
-	else
-		(*cp)++;
-
-	*tmp = '\0';
-
-	if (!(tmp = strrchr(end, '<')) || parse_end(&tmp) < 0) {
-		DBG(DEBUG_READ,
-		    printf("blkid: missing </device> ending: %s\n", end));
-	} else if (tmp)
-		*tmp = '\0';
-
-	if (end - start <= 1) {
-		DBG(DEBUG_READ, printf("blkid: empty device name: %s\n", *cp));
-		return -BLKID_ERR_CACHE;
-	}
-
-	name = strndup(start, end - start);
-	if (name == NULL)
-		return -BLKID_ERR_MEM;
-
-	DBG(DEBUG_READ, printf("found dev %s\n", name));
-
-	if (!(*dev = blkid_get_dev(cache, name, BLKID_DEV_CREATE))) {
-		free(name);
-		return -BLKID_ERR_MEM;
-	}
-
-	free(name);
-	return 1;
-}
-
-/*
- * Extract a tag of the form NAME="value" from the line.
- */
-static int parse_token(char **name, char **value, char **cp)
-{
-	char *end;
-
-	if (!name || !value || !cp)
-		return -BLKID_ERR_PARAM;
-
-	if (!(*value = strchr(*cp, '=')))
-		return 0;
-
-	**value = '\0';
-	*name = strip_line(*cp);
-	*value = skip_over_blank(*value + 1);
-
-	if (**value == '"') {
-		end = strchr(*value + 1, '"');
-		if (!end) {
-			DBG(DEBUG_READ,
-			    printf("unbalanced quotes at: %s\n", *value));
-			*cp = *value;
-			return -BLKID_ERR_CACHE;
-		}
-		(*value)++;
-		*end = '\0';
-		end++;
-	} else {
-		end = skip_over_word(*value);
-		if (*end) {
-			*end = '\0';
-			end++;
-		}
-	}
-	*cp = end;
-
-	return 1;
-}
-
-/*
- * Extract a tag of the form <NAME>value</NAME> from the line.
- */
-/*
-static int parse_xml(char **name, char **value, char **cp)
-{
-	char *end;
-
-	if (!name || !value || !cp)
-		return -BLKID_ERR_PARAM;
-
-	*name = strip_line(*cp);
-
-	if ((*name)[0] != '<' || (*name)[1] == '/')
-		return 0;
-
-	FIXME: finish this.
-}
-*/
-
-/*
- * Extract a tag from the line.
- *
- * Return 1 if a valid tag was found.
- * Return 0 if no tag found.
- * Return -ve error code.
- */
-static int parse_tag(blkid_cache cache, blkid_dev dev, char **cp)
-{
-	char *name = NULL;
-	char *value = NULL;
-	int ret;
-
-	if (!cache || !dev)
-		return -BLKID_ERR_PARAM;
-
-	if ((ret = parse_token(&name, &value, cp)) <= 0 /* &&
-	    (ret = parse_xml(&name, &value, cp)) <= 0 */)
-		return ret;
-
-	/* Some tags are stored directly in the device struct */
-	if (!strcmp(name, "DEVNO"))
-		dev->bid_devno = STRTOULL(value, 0, 0);
-	else if (!strcmp(name, "PRI"))
-		dev->bid_pri = strtol(value, 0, 0);
-	else if (!strcmp(name, "TIME")) {
-		char *end = NULL;
-		dev->bid_time = STRTOULL(value, &end, 0);
-		if (end && *end == '.')
-			dev->bid_utime = STRTOULL(end + 1, 0, 0);
-	} else
-		ret = blkid_set_tag(dev, name, value, strlen(value));
-
-	DBG(DEBUG_READ, printf("    tag: %s=\"%s\"\n", name, value));
-
-	return ret < 0 ? ret : 1;
-}
-
-/*
- * Parse a single line of data, and return a newly allocated dev struct.
- * Add the new device to the cache struct, if one was read.
- *
- * Lines are of the form <device [TAG="value" ...]>/dev/foo</device>
- *
- * Returns -ve value on error.
- * Returns 0 otherwise.
- * If a valid device was read, *dev_p is non-NULL, otherwise it is NULL
- * (e.g. comment lines, unknown XML content, etc).
- */
-static int blkid_parse_line(blkid_cache cache, blkid_dev *dev_p, char *cp)
-{
-	blkid_dev dev;
-	int ret;
-
-	if (!cache || !dev_p)
-		return -BLKID_ERR_PARAM;
-
-	*dev_p = NULL;
-
-	DBG(DEBUG_READ, printf("line: %s\n", cp));
-
-	if ((ret = parse_dev(cache, dev_p, &cp)) <= 0)
-		return ret;
-
-	dev = *dev_p;
-
-	while ((ret = parse_tag(cache, dev, &cp)) > 0) {
-		;
-	}
-
-	if (dev->bid_type == NULL) {
-		DBG(DEBUG_READ,
-		    printf("blkid: device %s has no TYPE\n",dev->bid_name));
-		blkid_free_dev(dev);
-		goto done;
-	}
-
-	DBG(DEBUG_READ, blkid_debug_dump_dev(dev));
-
-done:
-	return ret;
-}
-
-/*
- * Parse the specified filename, and return the data in the supplied or
- * a newly allocated cache struct.  If the file doesn't exist, return a
- * new empty cache struct.
- */
-void blkid_read_cache(blkid_cache cache)
-{
-	FILE *file;
-	char buf[4096];
-	int fd, lineno = 0;
-	struct stat st;
-
-	if (!cache)
-		return;
-
-	/*
-	 * If the file doesn't exist, then we just return an empty
-	 * struct so that the cache can be populated.
-	 */
-	if ((fd = open(cache->bic_filename, O_RDONLY|O_CLOEXEC)) < 0)
-		return;
-	if (fstat(fd, &st) < 0)
-		goto errout;
-	if ((st.st_mtime == cache->bic_ftime) ||
-	    (cache->bic_flags & BLKID_BIC_FL_CHANGED)) {
-		DBG(DEBUG_CACHE, printf("skipping re-read of %s\n",
-					cache->bic_filename));
-		goto errout;
-	}
-
-	DBG(DEBUG_CACHE, printf("reading cache file %s\n",
-				cache->bic_filename));
-
-	file = fdopen(fd, "r");
-	if (!file)
-		goto errout;
-
-	while (fgets(buf, sizeof(buf), file)) {
-		blkid_dev dev;
-		unsigned int end;
-
-		lineno++;
-		if (buf[0] == 0)
-			continue;
-		end = strlen(buf) - 1;
-		/* Continue reading next line if it ends with a backslash */
-		while (end < (sizeof(buf) - 2) && buf[end] == '\\' &&
-		       fgets(buf + end, sizeof(buf) - end, file)) {
-			end = strlen(buf) - 1;
-			lineno++;
-		}
-
-		if (blkid_parse_line(cache, &dev, buf) < 0) {
-			DBG(DEBUG_READ,
-			    printf("blkid: bad format on line %d\n", lineno));
-			continue;
-		}
-	}
-	fclose(file);
-
-	/*
-	 * Initially we do not need to write out the cache file.
-	 */
-	cache->bic_flags &= ~BLKID_BIC_FL_CHANGED;
-	cache->bic_ftime = st.st_mtime;
-
-	return;
-errout:
-	close(fd);
-	return;
-}
-
-#ifdef TEST_PROGRAM
-static void debug_dump_dev(blkid_dev dev)
-{
-	struct list_head *p;
-
-	if (!dev) {
-		printf("  dev: NULL\n");
-		return;
-	}
-
-	printf("  dev: name = %s\n", dev->bid_name);
-	printf("  dev: DEVNO=\"0x%0llx\"\n", (long long)dev->bid_devno);
-	printf("  dev: TIME=\"%ld.%ld\"\n", (long)dev->bid_time, (long)dev->bid_utime);
-	printf("  dev: PRI=\"%d\"\n", dev->bid_pri);
-	printf("  dev: flags = 0x%08X\n", dev->bid_flags);
-
-	list_for_each(p, &dev->bid_tags) {
-		blkid_tag tag = list_entry(p, struct blkid_struct_tag, bit_tags);
-		if (tag)
-			printf("    tag: %s=\"%s\"\n", tag->bit_name,
-			       tag->bit_val);
-		else
-			printf("    tag: NULL\n");
-	}
-	printf("\n");
-}
-
-int main(int argc, char**argv)
-{
-	blkid_cache cache = NULL;
-	int ret;
-
-	blkid_init_debug(DEBUG_ALL);
-	if (argc > 2) {
-		fprintf(stderr, "Usage: %s [filename]\n"
-			"Test parsing of the cache (filename)\n", argv[0]);
-		exit(1);
-	}
-	if ((ret = blkid_get_cache(&cache, argv[1])) < 0)
-		fprintf(stderr, "error %d reading cache file %s\n", ret,
-			argv[1] ? argv[1] : blkid_get_cache_filename(NULL));
-
-	blkid_put_cache(cache);
-
-	return ret;
-}
-#endif