add directory Linux-0.11

Linux-0.11/sources/libs/README.curses

@@ -0,0 +1,10 @@
+curses.tar.Z contains the curses library from bsd-net-2, with
+pre-installed diffs & RCS files for linux changes.
+You'll need to use 'pmake' to build it, or reconstruct the Makefile.
+
+I'm not completely certain that I got all of the raw(), crmode() etc
+stuff right.  If you have applications that use curses, try them out and
+send back patches if you find bugs.
+
+John Kohl <jtkohl@cs.berkeley.edu>
+

Linux-0.11/sources/sbin/df.c

@@ -0,0 +1,103 @@
+/* df.c: Copywrite (92) Peter MacDonald:  distribute freely, don't restrict. */
+
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <linux/fs.h>
+
+char *hdr1="\n            inodes  inodes  inodes     blocks  blocks  blocks  mount";
+char *hdr2=  "device      total   used    free       total   used    free    point";
+char *hdr3=  "--------------------------------------------------------------------";
+char *fmt =  "%-9s   %-7d %-7d %-7d    %-7d %-7d %-7d %s\n";
+
+void do_df(char *dev, char *dir);
+
+int main(int argc, char *argv[])
+{ int i;
+
+  sync();
+  puts(hdr1);
+  puts(hdr2);
+  puts(hdr3);
+  if (argc != 1)
+    for (i=1; i<argc; i++)
+      do_df(argv[i],"");
+  else
+  { FILE *F = fopen("/etc/mtab","r");    
+    if (!F)
+    { fprintf(stderr,"/etc/mtab not found\n");
+      exit(1);
+    }
+    do 
+    { char buf[200], dev[40], dir[150];
+      fgets(buf,200,F);
+      if (feof(F) || (strlen(buf)<6))
+        break;
+      sscanf(buf,"%s %s",dev,dir);
+      do_df(dev,dir);  
+    } while (1);  
+  }
+  exit(0);
+}
+
+
+#define oops(str,arg) { fprintf(stderr,str,arg); close(fd); return; }
+
+int fd;
+int nibblemap[] = { 0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4 };
+
+ino_t count(unsigned numblocks, unsigned numbits)
+{ unsigned i, j, end, sum = 0;
+  char buf[BLOCK_SIZE];
+  
+  for (i=0; (i<numblocks) && numbits; i++)
+  {
+    if (read(fd,buf,sizeof(buf))<0) 
+      return(0);
+    if (numbits >= (8*BLOCK_SIZE))
+    { 
+      end = BLOCK_SIZE;
+      numbits -= 8*BLOCK_SIZE;
+    }
+    else
+    { int tmp;
+      end = numbits >> 3;
+      numbits &= 0x7;
+      tmp = buf[end] & ((1<<numbits)-1);
+      sum += nibblemap[tmp&0xf] + nibblemap[(tmp>>4)&0xf];
+      numbits = 0;
+    }  
+    for (j=0; j<end; j++)
+      sum += nibblemap[buf[j] & 0xf] + nibblemap[(buf[j]>>4)&0xf];
+  }
+  return(sum);
+}
+
+void do_df(char *dev, char *dir)
+{ int it,iu,bt,bu;
+  struct super_block supstruct;
+  
+  if ((fd=open(dev,O_RDONLY))<0)
+    oops("df can't open device: %s",dev);
+    
+  lseek(fd,BLOCK_SIZE,SEEK_SET);
+  if (read(fd,(char*)&supstruct,sizeof(struct super_block)) 
+    != sizeof(struct super_block))
+    oops("super block unreadable: %s",dev);
+    
+  lseek(fd,BLOCK_SIZE*2,SEEK_SET);
+  if (supstruct.s_magic != SUPER_MAGIC)
+    oops("not a valid file system: %s",dev);
+    
+  it = supstruct.s_ninodes;
+  iu = count(supstruct.s_imap_blocks,supstruct.s_ninodes+1);
+
+  bt = supstruct.s_nzones << supstruct.s_log_zone_size;
+  bu = count(supstruct.s_zmap_blocks,supstruct.s_nzones) << 
+    supstruct.s_log_zone_size;
+  
+  printf(fmt,dev,it,iu,it-iu,bt,bu,bt-bu,dir);
+}

Linux-0.11/sources/sbin/fsck.c

@@ -0,0 +1,645 @@
+/*
+ * fsck.c - a file system consistency checker for Linux.
+ *
+ * (C) 1991 Linus Torvalds. This file may be redistributed as per
+ * the Linux copyright.
+ */
+
+/*
+ * 09.11.91  -  made the first rudimetary functions
+ *
+ * 10.11.91  -  updated, does checking, no repairs yet.
+ *		Sent out to the mailing-list for testing.
+ *
+ * 14.11.91  -	Testing seems to have gone well. Added some
+ *		correction-code, and changed some functions.
+ *
+ * 15.11.91  -  More correction code. Hopefully it notices most
+ *		cases now, and tries to do something about them.
+ *
+ * 16.11.91  -  More corrections (thanks to Matti Jalava). Most
+ *		things seem to work now.
+ *
+ * I've had no time to add comments - hopefully the function names
+ * are comments enough. As with all file system checkers, this assumes
+ * the file system is quiescent - don't use it on a mounted device
+ * unless you can be sure nobody is writing to it (and remember that the
+ * kernel can write to it when it searches for files).
+ *
+ * Usuage: fsck [-larvsm] device
+ *	-l for a listing of all the filenames
+ *	-a for automatic repairs (not implemented)
+ *	-r for repairs (interactive) (not implemented)
+ *	-v for verbose (tells how many files)
+ *	-s for super-block info
+ *	-m for minix-like "mode not cleared" warnings
+ *
+ * The device may be a block device or a image of one, but this isn't
+ * enforced (but it's not much fun on a character device :-). 
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <termios.h>
+#include <sys/stat.h>
+
+#include <linux/fs.h>
+
+#ifndef __GNUC__
+#error "needs gcc for the bitop-__asm__'s"
+#endif
+
+#ifndef __linux__
+#define volatile
+#endif
+
+#define ROOT_INO 1
+
+#define UPPER(size,n) ((size+((n)-1))/(n))
+#define INODE_SIZE (sizeof(struct d_inode))
+#define INODE_BLOCKS UPPER(INODES,INODES_PER_BLOCK)
+#define INODE_BUFFER_SIZE (INODE_BLOCKS * BLOCK_SIZE)
+
+#define BITS_PER_BLOCK (BLOCK_SIZE<<3)
+
+static char * program_name = "fsck";
+static char * device_name = NULL;
+static int IN;
+static int repair=0, automatic=0, verbose=0, list=0, show=0, warn_mode=0;
+static int directory=0, regular=0, blockdev=0, chardev=0, links=0, total=0;
+
+/* this is used to implement the (coming) two-pass zone checking. */
+static int trust_zone_bit_map=0;
+
+static int changed = 0; /* flags if the filesystem has been changed */
+
+/* File-name data */
+#define MAX_DEPTH 50
+static int name_depth = 0;
+static char name_list[MAX_DEPTH][NAME_LEN+1];
+
+static char * inode_buffer = NULL;
+#define Inode (((struct d_inode *) inode_buffer)-1)
+static char super_block_buffer[BLOCK_SIZE];
+#define Super (*(struct super_block *)super_block_buffer)
+#define INODES ((unsigned long)Super.s_ninodes)
+#define ZONES ((unsigned long)Super.s_nzones)
+#define IMAPS ((unsigned long)Super.s_imap_blocks)
+#define ZMAPS ((unsigned long)Super.s_zmap_blocks)
+#define FIRSTZONE ((unsigned long)Super.s_firstdatazone)
+#define ZONESIZE ((unsigned long)Super.s_log_zone_size)
+#define MAXSIZE ((unsigned long)Super.s_max_size)
+#define MAGIC (Super.s_magic)
+#define NORM_FIRSTZONE (2+IMAPS+ZMAPS+INODE_BLOCKS)
+
+static char inode_map[BLOCK_SIZE * I_MAP_SLOTS];
+static char zone_map[BLOCK_SIZE * Z_MAP_SLOTS];
+
+static unsigned char * inode_count = NULL;
+static unsigned char * zone_count = NULL;
+
+void recursive_check(unsigned int ino);
+
+#define bitop(name,op) \
+static inline int name(char * addr,unsigned int nr) \
+{ \
+int __res; \
+__asm__("bt" op " %1,%2; adcl $0,%0" \
+:"=g" (__res) \
+:"r" (nr),"m" (*(addr)),"0" (0)); \
+return __res; \
+}
+
+bitop(bit,"")
+bitop(setbit,"s")
+bitop(clrbit,"c")
+
+#define inode_in_use(x) (bit(inode_map,(x)))
+#define zone_in_use(x) (bit(zone_map,(x)-FIRSTZONE+1))
+
+#define mark_inode(x) (setbit(inode_map,(x)),changed=1)
+#define unmark_inode(x) (clrbit(inode_map,(x)),changed=1)
+
+#define mark_zone(x) (setbit(zone_map,(x)-FIRSTZONE+1),changed=1)
+#define unmark_zone(x) (clrbit(zone_map,(x)-FIRSTZONE+1),changed=1)
+
+/*
+ * Volatile to let gcc know that this doesn't return. When trying
+ * to compile this under minix, volatile gives a warning, as
+ * exit() isn't defined as volatile under minix.
+ */
+volatile void fatal_error(const char * fmt_string)
+{
+	fprintf(stderr,fmt_string,program_name,device_name);
+	exit(1);
+}
+
+#define usage() fatal_error("Usage: %s [-larvsm] /dev/name\n")
+#define die(str) fatal_error("%s: " str "\n")
+
+/*
+ * This simply goes through the file-name data and prints out the
+ * current file.
+ */
+void print_current_name(void)
+{
+	int i=0;
+
+	while (i<name_depth)
+		printf("/%.14s",name_list[i++]);
+}
+
+int ask(const char * string,int def)
+{
+	int c;
+
+	if (!repair) {
+		printf("\n");
+		return 0;
+	}
+	if (automatic) {
+		printf("\n");
+		return def;
+	}
+	printf(def?"%s (y/n)? ":"%s (n/y)? ",string);
+	for (;;) {
+		fflush(stdout);
+		if ((c=getchar())==EOF)
+			return def;
+		c=toupper(c);
+		if (c == 'Y') {
+			def = 1;
+			break;
+		} else if (c == 'N') {
+			def = 0;
+			break;
+		} else if (c == ' ' || c == '\n')
+			break;
+	}
+	if (def)
+		printf("y\n");
+	else
+		printf("n\n");
+	return def;
+}
+
+/*
+ * check_zone_nr checks to see that *nr is a valid zone nr. If it
+ * isn't, it will possibly be repaired. Check_zone_nr returns != 0
+ * if it changed the nr.
+ */
+int check_zone_nr(unsigned short * nr)
+{
+	if (!*nr)
+		return 0;
+	if (*nr < FIRSTZONE)
+		printf("Zone nr < FIRSTZONE in file `");
+	else if (*nr >= ZONES)
+		printf("Zone nr > ZONES in file `");
+	else
+		return 0;
+	print_current_name();
+	printf("'.");
+	if (ask("Remove block",1)) {
+		*nr=0;
+		changed = 1;
+		return 1;
+	}
+	return 0;
+}
+
+/*
+ * read-block reads block *nr into the buffer at addr. It returns
+ * 0 if the *nr is unchanged, 1 if it was changed.
+ */
+int read_block(unsigned short * nr, char * addr)
+{
+	int blk_chg = check_zone_nr(nr);
+
+	if (!*nr || *nr >= ZONES) {
+		memset(addr,0,BLOCK_SIZE);
+		return changed;
+	}
+	if (BLOCK_SIZE*(*nr) != lseek(IN, BLOCK_SIZE*(*nr), SEEK_SET))
+		die("seek failed in read_block");
+	if (BLOCK_SIZE != read(IN, addr, BLOCK_SIZE)) {
+		printf("Read error: bad block in file '");
+		print_current_name();
+		printf("'\n");
+		memset(addr,0,BLOCK_SIZE);
+	}
+	return blk_chg;
+}
+
+/*
+ * write_block writes block nr to disk.
+ */
+inline void write_block(unsigned int nr, char * addr)
+{
+	if (!nr)
+		return;
+	if (nr < FIRSTZONE || nr >= ZONES) {
+		printf("Internal error: trying to write bad block\n"
+		"Write request ignored\n");
+		return;
+	}
+	if (BLOCK_SIZE*nr != lseek(IN, BLOCK_SIZE*nr, SEEK_SET))
+		die("seek failed in write_block");
+	if (BLOCK_SIZE != write(IN, addr, BLOCK_SIZE)) {
+		printf("Write error: bad block in file '");
+		print_current_name();
+		printf("'\n");
+	}
+}
+
+/*
+ * mapped-read-block reads block nr blknr from the specified file.
+ * it returns 1 if the inode has been changed due to bad zone nrs
+ */
+inline int mapped_read_block(struct d_inode * inode,
+	unsigned int blknr, char * addr)
+{
+	unsigned short ind[BLOCK_SIZE>>1];
+	unsigned short dind[BLOCK_SIZE>>1];
+	int result;
+
+	if (blknr<7)
+		return read_block(blknr + inode->i_zone,addr);
+	blknr -= 7;
+	if (blknr<512) {
+		result = read_block(7 + inode->i_zone, (char *) ind);
+		if (read_block(blknr + ind,addr))
+			write_block(inode->i_zone[7], (char *) ind);
+		return result;
+	}
+	blknr -= 512;
+	result = read_block(8 + inode->i_zone, (char *) dind);
+	if (read_block(blknr/512 + dind, (char *) ind))
+		write_block(inode->i_zone[8], (char *) dind);
+	if (read_block(blknr%512 + ind,addr))
+		write_block(dind[blknr/512], (char *) ind);
+	return result;
+}
+
+void write_tables(void)
+{
+	if (BLOCK_SIZE != lseek(IN, BLOCK_SIZE, SEEK_SET))
+		die("seek failed in write_tables");
+	if (BLOCK_SIZE != write(IN, super_block_buffer, BLOCK_SIZE))
+		die("unable to write super-block");
+	if (IMAPS*BLOCK_SIZE != write(IN,inode_map,IMAPS*BLOCK_SIZE))
+		die("Unable to write inode map");
+	if (ZMAPS*BLOCK_SIZE != write(IN,zone_map,ZMAPS*BLOCK_SIZE))
+		die("Unable to write zone map");
+	if (INODE_BUFFER_SIZE != write(IN,inode_buffer,INODE_BUFFER_SIZE))
+		die("Unable to write inodes");
+}
+
+void read_tables(void)
+{
+	memset(inode_map,0,sizeof(inode_map));
+	memset(zone_map,0,sizeof(zone_map));
+	if (BLOCK_SIZE != lseek(IN, BLOCK_SIZE, SEEK_SET))
+		die("seek failed");
+	if (BLOCK_SIZE != read(IN, super_block_buffer, BLOCK_SIZE))
+		die("unable to read super block");
+	if (MAGIC != SUPER_MAGIC)
+		die("bad magic number in super-block");
+	if (ZONESIZE != 0 || BLOCK_SIZE != 1024)
+		die("Only 1k blocks/zones supported");
+	if (!IMAPS || IMAPS > I_MAP_SLOTS)
+		die("bad s_imap_blocks field in super-block");
+	if (!ZMAPS || ZMAPS > Z_MAP_SLOTS)
+		die("bad s_zmap_blocks field in super-block");
+	inode_buffer = malloc(INODE_BUFFER_SIZE);
+	if (!inode_buffer)
+		die("Unable to allocate buffer for inodes");
+	inode_count = malloc(INODES);
+	if (!inode_count)
+		die("Unable to allocate buffer for inode count");
+	zone_count = malloc(ZONES);
+	if (!zone_count)
+		die("Unable to allocate buffer for zone count");
+	if (IMAPS*BLOCK_SIZE != read(IN,inode_map,IMAPS*BLOCK_SIZE))
+		die("Unable to read inode map");
+	if (ZMAPS*BLOCK_SIZE != read(IN,zone_map,ZMAPS*BLOCK_SIZE))
+		die("Unable to read zone map");
+	if (INODE_BUFFER_SIZE != read(IN,inode_buffer,INODE_BUFFER_SIZE))
+		die("Unable to read inodes");
+	if (NORM_FIRSTZONE != FIRSTZONE)
+		printf("Warning: Firstzone != Norm_firstzone\n");
+	if (show) {
+		printf("%d inodes\n",INODES);
+		printf("%d blocks\n",ZONES);
+		printf("Firstdatazone=%d (%d)\n",FIRSTZONE,NORM_FIRSTZONE);
+		printf("Zonesize=%d\n",BLOCK_SIZE<<ZONESIZE);
+		printf("Maxsize=%d\n\n",MAXSIZE);
+	}
+}
+
+struct d_inode * get_inode(unsigned int nr)
+{
+	struct d_inode * inode;
+
+	if (!nr || nr > INODES)
+		return NULL;
+	total++;
+	inode = Inode + nr;
+	if (!inode_count[nr]) {
+		if (!inode_in_use(nr)) {
+			printf("Inode %d marked not used, but used for file '",
+				nr);
+			print_current_name();
+			printf("'\n");
+			if (repair)
+				if (ask("Mark in use",1))
+					mark_inode(nr);
+		}
+		if (S_ISDIR(inode->i_mode))
+			directory++;
+		else if (S_ISREG(inode->i_mode))
+			regular++;
+		else if (S_ISCHR(inode->i_mode))
+			chardev++;
+		else if (S_ISBLK(inode->i_mode))
+			blockdev++;
+	} else
+		links++;
+	if (!++inode_count[nr]) {
+		printf("Warning: inode count too big.\n");
+		inode_count[nr]--;
+	}
+	return inode;
+}
+
+void check_root(void)
+{
+	struct d_inode * inode = Inode + ROOT_INO;
+
+	if (!inode || !S_ISDIR(inode->i_mode))
+		die("root inode isn't a directory");
+}
+
+static int add_zone(unsigned short * znr)
+{
+	int result;
+
+	result=check_zone_nr(znr);
+	if (!*znr || *znr >= ZONES)
+		return result;
+	if (zone_count[*znr]) {
+		printf("Block has been used before. Now in file `");
+		print_current_name();
+		printf("'.");
+		if (ask("Clear",1)) {
+			*znr = 0;
+			changed = 1;
+		}
+	}
+	if (!*znr || *znr >= ZONES)
+		return result;
+	if (!zone_in_use(*znr)) {
+		printf("Block %d in file `",*znr);
+		print_current_name();
+		printf("' is marked not in use.");
+		if (ask("Correct",1))
+			mark_zone(*znr);
+	}
+	if (!++zone_count[*znr])
+		zone_count[*znr]--;
+	return result;
+}
+
+static int add_zone_ind(unsigned short * znr)
+{
+	static char blk[BLOCK_SIZE];
+	int i, result, chg_blk=0;
+
+	result = add_zone(znr);
+	if (!*znr || *znr>=ZONES)
+		return result;
+	read_block(znr,blk);
+	for (i=0 ; i < (BLOCK_SIZE>>1) ; i++)
+		chg_blk |= add_zone(i + (unsigned short *) blk);
+	if (chg_blk)
+		write_block(*znr,blk);
+	return result;
+}
+
+static int add_zone_dind(unsigned short * znr)
+{
+	static char blk[BLOCK_SIZE];
+	int i, result, blk_chg=0;
+
+	result = add_zone(znr);
+	if (!*znr || *znr >= ZONES)
+		return result;
+	read_block(znr,blk);
+	for (i=0 ; i < (BLOCK_SIZE>>1) ; i++)
+		blk_chg |= add_zone_ind(i + (unsigned short *) blk);
+	if (blk_chg)
+		write_block(*znr,blk);
+	return result;
+}
+
+void check_zones(unsigned int i)
+{
+	struct d_inode * inode;
+
+	if (!i || i >= INODES)
+		return;
+	if (inode_count[i] > 1)	/* have we counted this file already? */
+		return;
+	inode = Inode + i;
+	if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode))
+		return;
+	for (i=0 ; i<7 ; i++)
+		add_zone(i + inode->i_zone);
+	add_zone_ind(7 + inode->i_zone);
+	add_zone_dind(8 + inode->i_zone);
+}
+
+void check_file(struct d_inode * dir, unsigned int offset)
+{
+	static char blk[BLOCK_SIZE];
+	struct d_inode * inode;
+	int ino;
+	char * name;
+
+	changed |= mapped_read_block(dir,offset/BLOCK_SIZE,blk);
+	name = blk + (offset % BLOCK_SIZE) + 2;
+	ino = * (unsigned short *) (name-2);
+	inode = get_inode(ino);
+	if (!offset)
+		if (!inode || strcmp(".",name)) {
+			print_current_name();
+			printf(": bad directory: '.' isn't first\n");
+		} else return;
+	if (offset == 16)
+		if (!inode || strcmp("..",name)) {
+			print_current_name();
+			printf(": bad directory: '..' isn't second\n");
+		} else return;
+	if (!inode)
+		return;
+	if (name_depth < MAX_DEPTH)
+		strncpy(name_list[name_depth],name,14);
+	name_depth++;	
+	if (list) {
+		if (verbose)
+			printf("%6d %07o ",ino,inode->i_mode);
+		print_current_name();
+		if (S_ISDIR(inode->i_mode))
+			printf(":\n");
+		else
+			printf("\n");
+	}
+	check_zones(ino);
+	if (inode && S_ISDIR(inode->i_mode))
+		recursive_check(ino);
+	name_depth--;
+	return;
+}
+
+void recursive_check(unsigned int ino)
+{
+	struct d_inode * dir;
+	unsigned int offset;
+
+	dir = Inode + ino;
+	if (!S_ISDIR(dir->i_mode))
+		die("internal error");
+	for (offset = 0 ; offset < dir->i_size ; offset += 16)
+		check_file(dir,offset);
+}
+
+void check_counts(void)
+{
+	int i;
+
+	for (i=1 ; i < INODES ; i++) {
+		if (!inode_in_use(i) && Inode[i].i_mode && warn_mode) {
+			printf("Inode %d mode not cleared.",i);
+			if (ask("Clear",1)) {
+				Inode[i].i_mode = 0;
+				changed = 1;
+			}
+		}
+		if (inode_in_use(i)*Inode[i].i_nlinks == inode_count[i])
+			continue;
+		if (!inode_count[i]) {
+			printf("Inode %d not used, marked used in the bitmap.",
+				i);
+			if (ask("Clear",1))
+				unmark_inode(i);
+		} else if (!inode_in_use(i)) {
+			printf("Inode %d used, marked unused in the bitmap.",
+				i);
+			if (ask("Set",1))
+				mark_inode(i);
+		}
+		if (inode_in_use(i) && Inode[i].i_nlinks != inode_count[i]) {
+			printf("Inode %d, i_nlinks=%d, counted=%d.",
+				i,Inode[i].i_nlinks,inode_count[i]);
+			if (ask("Set i_nlinks to count",1)) {
+				Inode[i].i_nlinks=inode_count[i];
+				changed=1;
+			}
+		}
+	}
+	for (i=FIRSTZONE ; i < ZONES ; i++) {
+		if (zone_in_use(i) == zone_count[i])
+			continue;
+		printf("Zone %d: %s in use, counted=%d\n",
+		i,zone_in_use(i)?"":"not",zone_count[i]);
+	}
+}
+
+void check(void)
+{
+	memset(inode_count,0,INODES*sizeof(*inode_count));
+	memset(zone_count,0,ZONES*sizeof(*zone_count));
+	check_zones(ROOT_INO);
+	recursive_check(ROOT_INO);
+	check_counts();
+}
+
+int main(int argc, char ** argv)
+{
+	struct termios termios,tmp;
+
+	if (argc && *argv)
+		program_name = *argv;
+	if (INODE_SIZE * INODES_PER_BLOCK != BLOCK_SIZE)
+		die("bad inode size");
+	while (argc-- > 1) {
+		argv++;
+		if (argv[0][0] != '-')
+			if (device_name)
+				usage();
+			else
+				device_name = argv[0];
+		else while (*++argv[0])
+			switch (argv[0][0]) {
+				case 'l': list=1; break;
+				case 'a': automatic=1; repair=1; break;
+				case 'r': automatic=0; repair=1; break;
+				case 'v': verbose=1; break;
+				case 's': show=1; break;
+				case 'm': warn_mode=1; break;
+				default: usage();
+			}
+	}
+	if (!device_name)
+		usage();
+	if (repair && !automatic) {
+		if (!isatty(0) || !isatty(1))
+			die("need terminal for interactive repairs");
+		tcgetattr(0,&termios);
+		tmp = termios;
+		tmp.c_lflag &= ~(ICANON|ECHO);
+		tcsetattr(0,TCSANOW,&tmp);
+	}
+	IN = open(device_name,repair?O_RDWR:O_RDONLY);
+	if (IN < 0)
+		die("unable to open '%s'");
+	read_tables();
+	check_root();
+	check();
+	if (verbose) {
+		int i, free;
+
+		for (i=1,free=0 ; i<INODES ; i++)
+			if (!inode_in_use(i))
+				free++;
+		printf("\n%6d inodes used (%d%%)\n",(INODES-free),
+			100*(INODES-free)/INODES);
+		for (i=FIRSTZONE,free=0 ; i<ZONES ; i++)
+			if (!zone_in_use(i))
+				free++;
+		printf("%6d zones used (%d%%)\n",(ZONES-free),
+			100*(ZONES-free)/ZONES);
+		printf("\n%6d regular files\n"
+		"%6d directories\n"
+		"%6d character device files\n"
+		"%6d block device files\n"
+		"%6d links\n"
+		"------\n"
+		"%6d files\n",
+		regular,directory,chardev,blockdev,
+		links-2*directory+1,total-2*directory+1);
+	}
+	if (changed) {
+		write_tables();
+		printf(	"----------------------------\n"
+			"FILE SYSTEM HAS BEEN CHANGED\n"
+			"----------------------------\n");
+	}
+	if (repair && !automatic)
+		tcsetattr(0,TCSANOW,&termios);
+	return (0);
+}

Linux-0.11/sources/sbin/kill.c

@@ -0,0 +1,96 @@
+/* kill.c : copyright (92) Peter MacDonald: Distribute freely, don't restrict*/
+
+#include <sys/types.h>
+#include <signal.h>
+#include <strings.h>
+
+#define ERR 2
+const char *usagestr = "usage: kill [-signal] pid ...\n";
+
+void oops(void)
+{ write(ERR,usagestr,strlen(usagestr));
+  exit(1);
+}   
+
+void oops2(char *str1, char *str2)
+{
+  write(ERR,str1,strlen(str1));
+  write(ERR,str2,strlen(str2));
+  write(ERR,"\n",1);
+  exit(1);
+}   
+
+char *itoa(int num)
+{ int sign = 0; 
+  static char buf[15];
+  char *cp = buf+sizeof(buf)-1;
+  if (num<0)
+  { sign = 1;
+    num = -num;
+  }
+  do
+  { 
+    *cp-- = '0'+num%10; 
+    num /= 10;
+  } while (num);
+  if (sign)
+    *cp-- = '-';
+  return(cp+1);
+}
+
+const char *signames[] =  {
+	"HUP", "INT", "QUIT", "ILL", "TRAP", "ABRT", "UNUSED", 
+	"FPE", "KILL", "USR1", "SEGV", "USR2", "PIPE", "ALRM", "TERM", 
+	"STKFLT", "CHLD", "CONT", "STOP", "TSTP", "TTIN", "TTOU", 0 };
+
+int main(int argc, char *argv[])
+{
+  int i, signum = SIGTERM;
+  
+  if (argc < 2)
+    oops();
+  if ((argc>1) && ('-' == *argv[1]))
+  {
+    if ('?' == argv[1][1])
+      for (i=0; i<NSIG; i++)
+        if (!signames[i])
+        { write(ERR,"\n",1);
+          exit(0);
+        }
+        else
+        { write(ERR,signames[i],strlen(signames[i]));
+          write(ERR," ", 1);
+          if (i==10)
+            write(ERR,"\n",1);
+        }
+          
+    for (i=0; i<NSIG; i++)
+      if (!signames[i])
+      { i = NSIG; 
+        break;
+      }
+      else
+        if (!strcmp(signames[i],argv[1]+1))
+          break;
+         
+    if (i < NSIG)
+      signum = i+1;
+    else
+      if ((!(signum = atoi(argv[1]+1))) || (signum<=0) || (signum>NSIG))
+        oops();
+    argc--;
+    argv++;    
+  }      
+
+  while (--argc)
+  { 
+    argv++;
+    if ((i = atoi(*argv)) <= 3)
+      oops();
+    if (kill(i,signum))
+      oops2( "kill: no such process ", itoa(i));
+  }
+  return(0);
+}
+      
+

Linux-0.11/sources/sbin/mkfs.c

@@ -0,0 +1,365 @@
+/*
+ * mkfs.c - make a linux (minix) file-system.
+ *
+ * (C) 1991 Linus Torvalds. This file may be redistributed as per
+ * the Linux copyright.
+ */
+
+/*
+ * 24.11.91  -	time began. Used the fsck sources to get started.
+ *
+ * 25.11.91  -	corrected some bugs. Added support for ".badblocks"
+ *		The algorithm for ".badblocks" is a bit weird, but
+ *		it should work. Oh, well.
+ *
+ * Usuage: mkfs [-c] device size-in-blocks
+ *
+ *	-c for readablility checking (SLOW!)
+ *
+ * The device may be a block device or a image of one, but this isn't
+ * enforced (but it's not much fun on a character device :-). 
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <termios.h>
+#include <sys/stat.h>
+
+#include <linux/fs.h>
+
+#ifndef __GNUC__
+#error "needs gcc for the bitop-__asm__'s"
+#endif
+
+#ifndef __linux__
+#define volatile
+#endif
+
+#define ROOT_INO 1
+#define BAD_INO 2
+
+#define TEST_BUFFER_BLOCKS 32
+#define MAX_GOOD_BLOCKS 512
+
+#define UPPER(size,n) ((size+((n)-1))/(n))
+#define INODE_SIZE (sizeof(struct d_inode))
+#define INODE_BLOCKS UPPER(INODES,INODES_PER_BLOCK)
+#define INODE_BUFFER_SIZE (INODE_BLOCKS * BLOCK_SIZE)
+
+#define BITS_PER_BLOCK (BLOCK_SIZE<<3)
+
+static char * program_name = "mkfs";
+static char * device_name = NULL;
+static int DEV = -1;
+static long BLOCKS = 0;
+static int check = 0;
+static int badblocks = 0;
+
+#define ROOT_INO_STRING "\001\000"
+#define BAD_INO_STRING "\002\000"
+
+static char root_block[BLOCK_SIZE] =
+ROOT_INO_STRING ".\0\0\0\0\0\0\0\0\0\0\0\0\0"
+ROOT_INO_STRING "..\0\0\0\0\0\0\0\0\0\0\0\0"
+BAD_INO_STRING  ".badblocks\0\0\0\0";
+
+static char * inode_buffer = NULL;
+#define Inode (((struct d_inode *) inode_buffer)-1)
+static char super_block_buffer[BLOCK_SIZE];
+#define Super (*(struct super_block *)super_block_buffer)
+#define INODES ((unsigned long)Super.s_ninodes)
+#define ZONES ((unsigned long)Super.s_nzones)
+#define IMAPS ((unsigned long)Super.s_imap_blocks)
+#define ZMAPS ((unsigned long)Super.s_zmap_blocks)
+#define FIRSTZONE ((unsigned long)Super.s_firstdatazone)
+#define ZONESIZE ((unsigned long)Super.s_log_zone_size)
+#define MAXSIZE ((unsigned long)Super.s_max_size)
+#define MAGIC (Super.s_magic)
+#define NORM_FIRSTZONE (2+IMAPS+ZMAPS+INODE_BLOCKS)
+
+static char inode_map[BLOCK_SIZE * I_MAP_SLOTS];
+static char zone_map[BLOCK_SIZE * Z_MAP_SLOTS];
+
+static unsigned short good_blocks_table[MAX_GOOD_BLOCKS];
+static int used_good_blocks = 0;
+
+#define bitop(name,op) \
+static inline int name(char * addr,unsigned int nr) \
+{ \
+int __res; \
+__asm__ __volatile__("bt" op " %1,%2; adcl $0,%0" \
+:"=g" (__res) \
+:"r" (nr),"m" (*(addr)),"0" (0)); \
+return __res; \
+}
+
+bitop(bit,"")
+bitop(setbit,"s")
+bitop(clrbit,"r")
+
+#define inode_in_use(x) (bit(inode_map,(x)))
+#define zone_in_use(x) (bit(zone_map,(x)-FIRSTZONE+1))
+
+#define mark_inode(x) (setbit(inode_map,(x)))
+#define unmark_inode(x) (clrbit(inode_map,(x)))
+
+#define mark_zone(x) (setbit(zone_map,(x)-FIRSTZONE+1))
+#define unmark_zone(x) (clrbit(zone_map,(x)-FIRSTZONE+1))
+
+/*
+ * Volatile to let gcc know that this doesn't return. When trying
+ * to compile this under minix, volatile gives a warning, as
+ * exit() isn't defined as volatile under minix.
+ */
+volatile void fatal_error(const char * fmt_string)
+{
+	fprintf(stderr,fmt_string,program_name,device_name);
+	exit(1);
+}
+
+#define usage() fatal_error("Usage: %s [-c] /dev/name blocks\n")
+#define die(str) fatal_error("%s: " str "\n")
+
+void write_tables(void)
+{
+	if (BLOCK_SIZE != lseek(DEV, BLOCK_SIZE, SEEK_SET))
+		die("seek failed in write_tables");
+	if (BLOCK_SIZE != write(DEV, super_block_buffer, BLOCK_SIZE))
+		die("unable to write super-block");
+	if (IMAPS*BLOCK_SIZE != write(DEV,inode_map,IMAPS*BLOCK_SIZE))
+		die("Unable to write inode map");
+	if (ZMAPS*BLOCK_SIZE != write(DEV,zone_map,ZMAPS*BLOCK_SIZE))
+		die("Unable to write zone map");
+	if (INODE_BUFFER_SIZE != write(DEV,inode_buffer,INODE_BUFFER_SIZE))
+		die("Unable to write inodes");
+}
+
+void write_block(int blk, char * buffer)
+{
+	if (blk*BLOCK_SIZE != lseek(DEV, blk*BLOCK_SIZE, SEEK_SET))
+		die("seek failed in write_block");
+	if (BLOCK_SIZE != write(DEV, buffer, BLOCK_SIZE))
+		die("write failed in write_block");
+}
+
+int get_free_block(void)
+{
+	int blk;
+
+	if (used_good_blocks+1 >= MAX_GOOD_BLOCKS)
+		die("too many bad blocks");
+	if (used_good_blocks)
+		blk = good_blocks_table[used_good_blocks-1]+1;
+	else
+		blk = FIRSTZONE;
+	while (blk < ZONES && zone_in_use(blk))
+		blk++;
+	if (blk >= ZONES)
+		die("not enough good blocks");
+	good_blocks_table[used_good_blocks] = blk;
+	used_good_blocks++;
+	return blk;
+}
+
+void mark_good_blocks(void)
+{
+	int blk;
+
+	for (blk=0 ; blk < used_good_blocks ; blk++)
+		mark_zone(good_blocks_table[blk]);
+}
+
+inline int next(int zone)
+{
+	if (!zone)
+		zone = FIRSTZONE-1;
+	while (++zone < ZONES)
+		if (zone_in_use(zone))
+			return zone;
+	return 0;
+}
+
+void make_bad_inode(void)
+{
+	struct d_inode * inode = &Inode[BAD_INO];
+	int i,j,zone;
+	int ind=0,dind=0;
+	unsigned short ind_block[BLOCK_SIZE>>1];
+	unsigned short dind_block[BLOCK_SIZE>>1];
+
+#define NEXT_BAD (zone = next(zone))
+
+	if (!badblocks)
+		return;
+	mark_inode(BAD_INO);
+	inode->i_nlinks = 1;
+	inode->i_time = time(NULL);
+	inode->i_mode = S_IFREG + 0000;
+	inode->i_size = badblocks*BLOCK_SIZE;
+	zone = next(0);
+	for (i=0 ; i<7 ; i++) {
+		inode->i_zone[i] = zone;
+		if (!NEXT_BAD)
+			goto end_bad;
+	}
+	inode->i_zone[7] = ind = get_free_block();
+	memset(ind_block,0,BLOCK_SIZE);
+	for (i=0 ; i<512 ; i++) {
+		ind_block[i] = zone;
+		if (!NEXT_BAD)
+			goto end_bad;
+	}
+	inode->i_zone[8] = dind = get_free_block();
+	memset(dind_block,0,BLOCK_SIZE);
+	for (i=0 ; i<512 ; i++) {
+		write_block(ind,(char *) ind_block);
+		dind_block[i] = ind = get_free_block();
+		memset(ind_block,0,BLOCK_SIZE);
+		for (j=0 ; j<512 ; j++) {
+			ind_block[j] = zone;
+			if (!NEXT_BAD)
+				goto end_bad;
+		}
+	}
+	die("too many bad blocks");
+end_bad:
+	if (ind)
+		write_block(ind, (char *) ind_block);
+	if (dind)
+		write_block(dind, (char *) dind_block);
+}
+
+void make_root_inode(void)
+{
+	struct d_inode * inode = &Inode[ROOT_INO];
+
+	mark_inode(ROOT_INO);
+	inode->i_zone[0] = get_free_block();
+	inode->i_nlinks = 2;
+	inode->i_time = time(NULL);
+	if (badblocks)
+		inode->i_size = 48;
+	else
+		inode->i_size = 32;
+	inode->i_mode = S_IFDIR + 0755;
+	write_block(inode->i_zone[0],root_block);
+}
+
+void setup_tables(void)
+{
+	int i;
+
+	memset(inode_map,0xff,sizeof(inode_map));
+	memset(zone_map,0xff,sizeof(zone_map));
+	memset(super_block_buffer,0,BLOCK_SIZE);
+	MAGIC = SUPER_MAGIC;
+	ZONESIZE = 0;
+	MAXSIZE = (7+512+512*512)*1024;
+	ZONES = BLOCKS;
+/* some magic nrs: 1 inode / 3 blocks */
+	INODES = BLOCKS/3;
+/* I don't want some off-by-one errors, so this hack... */
+	if ((INODES & 8191) > 8188)
+		INODES -= 5;
+	if ((INODES & 8191) < 10)
+		INODES -= 20;
+	IMAPS = UPPER(INODES,BITS_PER_BLOCK);
+	ZMAPS = 0;
+	while (ZMAPS != UPPER(BLOCKS - NORM_FIRSTZONE,BITS_PER_BLOCK))
+		ZMAPS = UPPER(BLOCKS - NORM_FIRSTZONE,BITS_PER_BLOCK);
+	FIRSTZONE = NORM_FIRSTZONE;
+	for (i = FIRSTZONE ; i<ZONES ; i++)
+		unmark_zone(i);
+	for (i = ROOT_INO ; i<INODES ; i++)
+		unmark_inode(i);
+	inode_buffer = malloc(INODE_BUFFER_SIZE);
+	if (!inode_buffer)
+		die("Unable to allocate buffer for inodes");
+	memset(inode_buffer,0,INODE_BUFFER_SIZE);
+	printf("%d inodes\n",INODES);
+	printf("%d blocks\n",ZONES);
+	printf("Firstdatazone=%d (%d)\n",FIRSTZONE,NORM_FIRSTZONE);
+	printf("Zonesize=%d\n",BLOCK_SIZE<<ZONESIZE);
+	printf("Maxsize=%d\n\n",MAXSIZE);
+}
+
+void check_blocks(void)
+{
+	unsigned int current_block=0;
+	int try,got;
+	static char buffer[BLOCK_SIZE * TEST_BUFFER_BLOCKS];
+
+	while (current_block < ZONES) {
+		if (lseek(DEV,current_block*BLOCK_SIZE,SEEK_SET) !=
+		current_block*BLOCK_SIZE)
+			die("seek failed in check_blocks");
+		try = TEST_BUFFER_BLOCKS;
+		if (current_block + try > ZONES)
+			try = ZONES-current_block;
+		got = read(DEV, buffer, try * BLOCK_SIZE);
+		if (got<0)
+			got = 0;
+		if (got & (BLOCK_SIZE-1))
+			printf("Weird values in check_blocks: probably bugs\n");
+		got /= BLOCK_SIZE;
+		current_block += got;
+		if (got == try)
+			continue;
+		if (current_block < FIRSTZONE)
+			die("bad blocks before data-area: cannot make fs");
+		mark_zone(current_block);
+		badblocks++;
+		current_block++;
+	}
+	if (badblocks)
+		printf("%d bad block%s\n",badblocks,(badblocks>1)?"s":"");
+}
+
+int main(int argc, char ** argv)
+{
+	char * tmp;
+	struct stat statbuf;
+
+	if (argc && *argv)
+		program_name = *argv;
+	if (INODE_SIZE * INODES_PER_BLOCK != BLOCK_SIZE)
+		die("bad inode size");
+	while (argc-- > 1) {
+		argv++;
+		if (argv[0][0] != '-')
+			if (device_name) {
+				BLOCKS = strtol(argv[0],&tmp,0);
+				if (*tmp)
+					usage();
+			} else
+				device_name = argv[0];
+		else while (*++argv[0])
+			switch (argv[0][0]) {
+				case 'c': check=1; break;
+				default: usage();
+			}
+	}
+	if (!device_name || BLOCKS<10 || BLOCKS > 65536)
+		usage();
+	DEV = open(device_name,O_RDWR);
+	if (DEV<0)
+		die("unable to open %s");
+	if (fstat(DEV,&statbuf)<0)
+		die("unable to stat %s");
+	if (!S_ISBLK(statbuf.st_mode))
+		check=0;
+	else if (statbuf.st_rdev == 0x0300 || statbuf.st_rdev == 0x0305)
+		die("Will not try to make filesystem on '%s'");
+	setup_tables();
+	if (check)
+		check_blocks();
+	make_root_inode();
+	make_bad_inode();
+	mark_good_blocks();
+	write_tables();
+	return 0;
+}

Linux-0.11/sources/sbin/nice.c

@@ -0,0 +1,54 @@
+/* nice.c: copywrite (92) Peter MacDonald: Distribute freely, don't restrict */
+#include <sys/types.h>
+#include <signal.h>
+#include <string.h>
+
+/* link nice to renice to change running processes priorities. */
+
+int is_nice;  
+
+void usage() 
+{ 
+  if (is_nice)
+    puts("usage: nice [-n] command"); 
+  else  
+    puts("usage: renice [-n] pid"); 
+  exit(-1); 
+}
+
+int renice(int priority, int pid)
+{
+  puts("renice system call not yet implemented");
+  return(0);
+}
+
+int main(int argc, char *argv[])
+{ 
+  int priority = 10;
+  
+  is_nice = (strcmp(*argv+strlen(*argv)-6,"renice"));
+  
+  if ((argc>1) && (argv[1][0] == '-'))
+  { priority = atoi(argv[1]+1);
+    if ((priority>19) || (priority<-20))
+      usage();
+    argc--;
+    argv++;  
+  }  
+    
+  if (argc<2)
+    usage();
+    
+  if (!is_nice)
+    if (renice(priority,atoi(argv[1])))
+      usage();
+    else
+      return(0);  
+      
+  if (nice(priority))
+    usage();
+
+  execvp(argv[1], argv+1);
+  puts("can not execute");
+  exit(-1);
+}  

Linux-0.11/sources/sbin/setroot.c

@@ -0,0 +1,481 @@
+From: hns@regent.e-technik.tu-muenchen.dbp.de (Henning Spruth)
+Newsgroups: alt.os.linux
+Subject: DOS program to set root device
+Date: 25 Mar 92 09:06:28 GMT
+
+Here is a small DOS program I hacked using Turbo C to be able to
+conveniently set the root partition. It is quite primitive, as it
+requires major/minor device numbers and can only access a boot disk in
+drive A:, but it works. Using it, installing Linux can be done in
+these steps:
+
+      1. boot the Linux boot disk
+      2. make HD file system
+      3. run install script
+      4. sync
+      5. boot DOS
+      6. run setroot.exe to set root file system to HD
+      7. boot the Linux boot disk again
+
+Here's the source:
+
+------------------------- begin setroot.c ------------------------------
+#include <stdio.h>
+#include <bios.h>
+#include <conio.h>
+
+char buffer[512];
+
+void check(int res)
+{
+  if(res==0) return;
+  printf("Disk error status: %x\n",res);
+  exit(1);
+}
+
+main()
+{
+  int result,x;
+  char in[80];
+  unsigned int major, minor;
+  printf("\n\nInsert Linux boot disk into drive A: and hit a key ...");
+  getch();
+  printf("\n");
+  printf("Resetting controller ...\n");
+  result=biosdisk(0,0,0,0,1,1,buffer);
+  check(result);
+  printf("Loading boot sector ...\n");
+  result=biosdisk(2,0,0,0,1,1,buffer);
+  if(result==6) result=biosdisk(2,0,0,0,1,1,buffer);
+  check(result);
+  printf("Current major boot device: %d\n",buffer[509]);
+  printf("Current minor boot device: %d\n",buffer[508]);
+  printf("\n");
+  printf("New device values:\n");
+  printf("Enter new major device: ");
+  gets(in);
+  sscanf(in,"%d",&major);
+  printf("Enter new minor device: ");
+  gets(in);
+  sscanf(in,"%d",&minor);
+  printf("\nCheck: changing root disk to major %d, minor %d\n",major,minor);
+  printf("Is this OK (y/n)? ");
+  x=getch(); printf("\n");
+  if(x!='y')
+  { printf("Aborting ...\n");
+    exit(0);
+  }
+  buffer[508]=minor;
+  buffer[509]=major;
+  printf("Writing boot sector ...\n");
+  result=biosdisk(3,0,0,0,1,1,buffer);
+  check(result);
+  printf("Root device changed!\n");
+}
+------------------------- end setroot.c ------------------------------
+
+
+Here is the uuencoded executable:
+
+------------------------- begin setroot.uue ----------------------------
+begin 664 setroot.exe
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+M0P!'151#2 !)3T524D]2 $E3051460!,4T5%2P!,5$]! $U%34-060!214%$
+M %)%041! %-#04Y.15( 4T-!3E1/3 !64%))3E1%4@!64D%- %=2251%00!#
+?5E1&04L 4D5!3$-65 !30T%.5$]$ $Y%05)(14%0  !6
+ 
+end
+------------------------- end setroot.uue ----------------------------
+
+
+If there is some demand, I can extend the program to use 
+standard HD device names instead of major/minor device numbers.
+
+Enjoy,
+
+Henning
+
+
+------------------------------------------------------------------------
+Henning Spruth		 	  spruth@regent.e-technik.tu-muenchen.de
+Institute of Electronic Design Automation
+Technical University of Munich, Germany
+--
+------------------------------------------------------------------------
+Henning Spruth		 	  spruth@regent.e-technik.tu-muenchen.de
+Institute of Electronic Design Automation
+Technical University of Munich, Germany
+