add directory Linux-0.12

Linux-0.12/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-0.12/sources/sbin/hostname.c

@@ -0,0 +1,27 @@
+/*
+ * Set or display hostname.  Jeff Comstock - Bloomington, MN USA 1992
+ * Usage: hostname [name]
+ * Only root may change the hostname.
+*/
+#include <stdio.h>
+#include <unistd.h>
+
+main(int argc, char **argv) {
+struct utsname uts;
+
+	if ( argc == 2 ) {
+		if ( sethostname(argv[1],strlen(argv[1]))) {
+			perror("sethostname");
+			exit(1);
+		}
+	}
+	else {
+		if (uname(&uts)) {
+			perror("uname");
+			exit(1);
+		}
+		else 
+			puts(uts.nodename);
+	}
+	return(0);
+}

Linux-0.12/sources/sbin/uname.c

@@ -0,0 +1,72 @@
+/*
+ * uname - print system information. Jeff Comstock - Bloomington, MN USA 1992
+ * Usage: uname [-asnrvm]
+ * -s prints system name
+ * -n prints nodename
+ * -r prints software release
+ * -v prints os version
+ * -m prints machine name
+ * -a prinst all the above information 
+*/
+#include <stdio.h>
+#include <getopt.h>
+#include <unistd.h>
+
+#define SYSNAME 	0
+#define NODENAME 	1
+#define RELEASE 	2
+#define VERSION 	3
+#define MACHINE 	4
+
+struct utsname u;
+
+struct utstab {
+	char *str;
+	int requested;
+} uttab[] = {
+	{ u.sysname, 	0 },
+	{ u.nodename, 	0 },
+	{ u.release, 	0 },
+	{ u.version, 	0 },
+	{ u.machine, 	0 }
+};	
+
+main(int argc, char **argv) {
+char *opts="amnrsv";
+register int c,space, all=0;
+
+	if ( ! uname(&u) ) {
+		if ( argc == 1 ) {
+			puts(u.sysname);
+		} else {
+			while ( (c = getopt(argc,argv,opts)) != -1 ) {
+					switch ( c ) {
+					case 'a' : all++;
+						break;
+					case 'm' : uttab[MACHINE].requested++;
+						break;
+					case 'n' : uttab[NODENAME].requested++;
+						break;
+					case 'r' : uttab[RELEASE].requested++;
+						break;
+					case 's' : uttab[SYSNAME].requested++;
+						break;
+					case 'v' : uttab[VERSION].requested++;
+						break;
+				}
+			}
+			space=0;
+			for(c=0; c <= MACHINE; c++) {
+				if ( uttab[c].requested || all ) {
+					if ( space )
+						putchar(' ');
+					printf("%s", uttab[c].str); 
+					space++;
+				}
+			}
+			puts("");
+		}
+	}
+	else
+		perror("uname");
+}