Genext2fs autosize updates, fixed a couple bugs, and made it take into account

the inodes needed due to the device table.

BKrev: 416e1357zosXLnvmO3Y6IhPMIKGpOA

1 files changed, 339 insertions, 0 deletions

diff --git a/genext2fs/genext2fs-1.3/autosize.patch b/genext2fs/genext2fs-1.3/autosize.patch
index e69de29bb2..a4318a6eee 100644
--- a/genext2fs/genext2fs-1.3/autosize.patch
+++ b/genext2fs/genext2fs-1.3/autosize.patch
@@ -0,0 +1,339 @@
+
+#
+# Patch managed by http://www.holgerschurig.de/patcher.html
+#
+
+--- genext2fs-1.3.orig/genext2fs.c~autosize.patch
++++ genext2fs-1.3.orig/genext2fs.c
+@@ -4,6 +4,11 @@
+ // ext2 filesystem generator for embedded systems
+ // Copyright (C) 2000 Xavier Bestel <xavier.bestel@free.fr>
+ //
++// 'du' portions taken from coreutils/du.c in busybox:
++//	Copyright (C) 1999,2000 by Lineo, inc. and John Beppu
++//	Copyright (C) 1999,2000,2001 by John Beppu <beppu@codepoet.org>
++//	Copyright (C) 2002  Edward Betts <edward@debian.org>
++//
+ // This program is free software; you can redistribute it and/or
+ // modify it under the terms of the GNU General Public License
+ // as published by the Free Software Foundation; version
+@@ -79,9 +84,93 @@
+ #include <ctype.h>
+ #include <errno.h>
+ #include <fcntl.h>
++#include <sys/types.h>
++#include <getopt.h>
++
++#define HASH_SIZE	311		/* Should be prime */
++#define hash_inode(i)	((i) % HASH_SIZE)
++
++typedef struct ino_dev_hash_bucket_struct {
++	struct ino_dev_hash_bucket_struct *next;
++	ino_t ino;
++	dev_t dev;
++	char name[1];
++} ino_dev_hashtable_bucket_t;
++
++static ino_dev_hashtable_bucket_t *ino_dev_hashtable[HASH_SIZE];
++
++struct stats {
++	unsigned long nblocks;
++	unsigned long ninodes;
++};
++
++int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name)
++{
++	ino_dev_hashtable_bucket_t *bucket;
++
++	bucket = ino_dev_hashtable[hash_inode(statbuf->st_ino)];
++	while (bucket != NULL) {
++		if ((bucket->ino == statbuf->st_ino) &&
++		    (bucket->dev == statbuf->st_dev))
++		{
++			if (name) *name = bucket->name;
++			return 1;
++		}
++		bucket = bucket->next;
++	}
++	return 0;
++}
++
++/* Add statbuf to statbuf hash table */
++void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name)
++{
++	int i;
++	size_t s;
++	ino_dev_hashtable_bucket_t *bucket;
++    
++	i = hash_inode(statbuf->st_ino);
++	s = name ? strlen(name) : 0;
++	bucket = malloc(sizeof(ino_dev_hashtable_bucket_t) + s);
++	bucket->ino = statbuf->st_ino;
++	bucket->dev = statbuf->st_dev;
++	if (name)
++		strcpy(bucket->name, name);
++	else
++		bucket->name[0] = '\0';
++	bucket->next = ino_dev_hashtable[i];
++	ino_dev_hashtable[i] = bucket;
++}
++
++/* Clear statbuf hash table */
++void reset_ino_dev_hashtable(void)
++{
++	int i;
++	ino_dev_hashtable_bucket_t *bucket;
++
++	for (i = 0; i < HASH_SIZE; i++) {
++		while (ino_dev_hashtable[i] != NULL) {
++			bucket = ino_dev_hashtable[i]->next;
++			free(ino_dev_hashtable[i]);
++			ino_dev_hashtable[i] = bucket;
++		}
++	}
++}
+ 
++static int count_ino_in_hashtable(void)
++{
++	long count = 0;
++	int i;
+ 
++	for (i = 0; i < HASH_SIZE; i++) {
++		ino_dev_hashtable_bucket_t *bucket = ino_dev_hashtable[i];
++		while (bucket != NULL) {
++			count++;
++			bucket = bucket->next;
++		}
++	}
+ 
++	return count;
++}
+ 
+ // block size
+ 
+@@ -1178,6 +1267,38 @@
+ 	return n;
+ }
+ 
++void stats_from_dir(struct stats *stats)
++{
++	DIR *dh;
++	struct dirent *dent;
++	struct stat st;
++	if(!(dh = opendir(".")))
++		perror_msg_and_die(".");
++	while((dent = readdir(dh)))
++	{
++		if((!strcmp(dent->d_name, ".")) || (!strcmp(dent->d_name, "..")))
++			continue;
++		lstat(dent->d_name, &st);
++		if (S_ISLNK(st.st_mode)) {
++			stats->ninodes++;
++		} else if (S_ISDIR(st.st_mode)) {
++			if(chdir(dent->d_name) < 0)
++				perror_msg_and_die(dent->d_name);
++			stats->ninodes++;
++			stats_from_dir(stats);
++			chdir("..");
++		} else {
++			if (!is_in_ino_dev_hashtable(&st, NULL)) {
++				add_to_ino_dev_hashtable(&st, NULL);
++				stats->nblocks += (st.st_blocks >> 1);
++				stats->ninodes++;
++			}
++		}
++	}
++	closedir(dh);
++	reset_ino_dev_hashtable();
++}
++
+ // adds a tree of entries to the filesystem from current dir
+ void add2fs_from_dir(filesystem *fs, uint32 this_nod)
+ {
+@@ -1436,7 +1557,6 @@
+ 		free_blocks_per_group = nbblocks_per_group - overhead_per_group;
+ 	}
+ 	nbblocks = nbblocks_per_group * nbgroups + 1;
+-	
+ 
+ 	if(!(fs = (filesystem*)calloc(nbblocks, BLOCKSIZE)))
+ 		error_msg_and_die("not enough memory for filesystem");
+@@ -1891,6 +2011,7 @@
+     Regular files must exist in the target root directory.  If a char,
+     block, fifo, or directory does not exist, it will be created.
+ */
++
+ static int interpret_table_entry(filesystem *fs, char *line)
+ {
+ 	char type, *name = NULL, *tmp, *dir, *bname;
+@@ -2026,6 +2147,52 @@
+ 	return 0;
+ }
+ 
++static int stats_from_table_entry(char *line, struct stats *stats)
++{
++	char type, *name = NULL, *tmp, *dir, *bname;
++	unsigned long mode = 0755, uid = 0, gid = 0, major = 0, minor = 0;
++	unsigned long start = 0, increment = 1, count = 0;
++	inode *entry;
++
++	if (sscanf (line, "%" SCANF_PREFIX "s %c %lo %lu %lu %lu %lu %lu %lu %lu",
++				SCANF_STRING(name), &type, &mode, &uid, &gid, &major, &minor,
++				&start, &increment, &count) < 0) 
++	{
++		return 1;
++	}
++
++	if (!strcmp(name, "/")) {
++		error_msg_and_die("Device table entries require absolute paths");
++	}
++
++	tmp = xstrdup(name);
++	bname = xstrdup(basename(tmp));
++	free(tmp);
++	switch (type) {
++		case 'd':
++			stats->ninodes++;
++			break;
++		case 'c':
++		case 'b':
++			if (count > 0) {
++				dev_t rdev;
++				char *dname;
++				unsigned long i;
++				for (i = start; i < count; i++) {
++					asprintf(&dname, "%s%lu", bname, i);
++					stats->ninodes++;
++					free(dname);
++				}
++			} else {
++				stats->ninodes++;
++			}
++			break;
++	}
++	free(bname);
++	free(name);
++	return 0;
++}
++
+ static int parse_device_table(filesystem *root, FILE * file)
+ {
+ 	char *line;
+@@ -2070,6 +2237,45 @@
+ 	return status;
+ }
+ 
++static int stats_from_dev_table(FILE *file, struct stats *stats)
++{
++	char *line;
++	int status = 0;
++	size_t length = 0;
++
++	/* Looks ok so far.  The general plan now is to read in one
++	 * line at a time, check for leading comment delimiters ('#'),
++	 * then try and parse the line as a device table.  If we fail
++	 * to parse things, try and help the poor fool to fix their
++	 * device table with a useful error msg... */
++	line = NULL;
++	while (getline(&line, &length, file) != -1) {
++		/* First trim off any whitespace */
++		int len = strlen(line);
++
++		/* trim trailing whitespace */
++		while (len > 0 && isspace(line[len - 1]))
++			line[--len] = '\0';
++		/* trim leading whitespace */
++		memmove(line, &line[strspn(line, " \n\r\t\v")], len);
++
++		/* How long are we after trimming? */
++		len = strlen(line);
++
++		/* If this is NOT a comment line, try to interpret it */
++		if (len && *line != '#') {
++			if (stats_from_table_entry(line, stats))
++				status = 1;
++		}
++
++		free(line);
++		line = NULL;
++	}
++	fclose(file);
++
++	return status;
++}
++
+ /*
+ Local Variables:
+ c-file-style: "linux"
+@@ -2112,6 +2318,8 @@
+ 	int nbblocks = -1;
+ 	int nbinodes = -1;
+ 	int nbresrvd = -1;
++	int tmp_nbblocks = -1;
++	int tmp_nbinodes = -1;
+ 	char * fsout = "-";
+ 	char * fsin = 0;
+ 	char * dopt[MAX_DOPT];
+@@ -2128,6 +2336,7 @@
+ 	int c;
+ 	struct stat sb;
+ 	FILE *devtable = NULL;
++	struct stats stats;
+ 
+ 	app_name = argv[0];
+ 	while((c = getopt(argc, argv, "x:d:b:i:r:g:e:zvhD:f:qUP")) != EOF)
+@@ -2184,6 +2393,7 @@
+ 			default:
+ 				exit(1);
+ 		}
++
+ 	if(optind < (argc - 1))
+ 		error_msg_and_die("too many arguments");
+ 	if(optind == (argc - 1))
+@@ -2201,6 +2411,46 @@
+ 	}
+ 	else
+ 	{
++		stats.ninodes = 0;
++		stats.nblocks = 0;
++		for(i = 0; i < didx; i++)
++		{
++			struct stat st;
++			char *pdir;
++			stat(dopt[i], &st);
++			switch(st.st_mode & S_IFMT)
++			{
++				case S_IFDIR:
++					if(!(pdir = getcwd(0, GETCWD_SIZE)))
++						perror_msg_and_die(dopt[i]);
++					if(chdir(dopt[i]) < 0)
++						perror_msg_and_die(dopt[i]);
++					stats_from_dir(&stats);
++					if(chdir(pdir) < 0)
++						perror_msg_and_die(pdir);
++					free(pdir);
++					break;
++				default:
++					error_msg_and_die("%s is neither a file nor a directory", dopt[i]);
++			}
++		}
++	
++		if(devtable)
++			stats_from_dev_table(devtable, &stats);
++	
++		tmp_nbinodes = stats.ninodes + EXT2_FIRST_INO + 1;
++		tmp_nbblocks = stats.nblocks;
++	
++		if(tmp_nbblocks > nbblocks)
++		{
++			printf("Number of blocks too low, increasing to %d\n",tmp_nbblocks);
++			nbblocks = tmp_nbblocks;
++		}
++		if(tmp_nbinodes > nbinodes)
++		{
++			printf("Number of inodes too low, increasing to %d\n",tmp_nbinodes);
++			nbinodes = tmp_nbinodes;
++		}
+ 		if(nbblocks == -1)
+ 			error_msg_and_die("filesystem size unspecified");
+ 		if(nbinodes == -1)