Author: luigi
Date: Wed Jan 14 21:31:09 2009
New Revision: 187246
URL: http://svn.freebsd.org/changeset/base/187246

Log:
  Another change from Christoph:
  replace the table of partition with a simpler and faster array of strings.
  The change in the array is done mechanically, using vi commands.
  Most entries in the table are probably 15+ years old and largely outdated,
  so the next step is to remove stale entries with more current values.
  
  Submitted by: Christoph Mallon, with small changes from me
  MFC after:    3 days

Modified:
  head/sbin/fdisk/fdisk.c

Modified: head/sbin/fdisk/fdisk.c
==============================================================================
--- head/sbin/fdisk/fdisk.c     Wed Jan 14 21:29:20 2009        (r187245)
+++ head/sbin/fdisk/fdisk.c     Wed Jan 14 21:31:09 2009        (r187246)
@@ -122,100 +122,109 @@ static char *f_flag = NULL;     /* Read conf
 static int v_flag  = 0;                /* Be verbose */
 static int print_config_flag = 0;
 
-static struct part_type
-{
-       unsigned char type;
-       const char *name;
-} part_types[] = {
-        {0x00, "unused"}
-       ,{0x01, "Primary DOS with 12 bit FAT"}
-       ,{0x02, "XENIX / file system"}
-       ,{0x03, "XENIX /usr file system"}
-       ,{0x04, "Primary DOS with 16 bit FAT (< 32MB)"}
-       ,{0x05, "Extended DOS"}
-       ,{0x06, "Primary 'big' DOS (>= 32MB)"}
-       ,{0x07, "OS/2 HPFS, NTFS, QNX-2 (16 bit) or Advanced UNIX"}
-       ,{0x08, "AIX file system or SplitDrive"}
-       ,{0x09, "AIX boot partition or Coherent"}
-       ,{0x0A, "OS/2 Boot Manager, OPUS or Coherent swap"}
-       ,{0x0B, "DOS or Windows 95 with 32 bit FAT"}
-       ,{0x0C, "DOS or Windows 95 with 32 bit FAT (LBA)"}
-       ,{0x0E, "Primary 'big' DOS (>= 32MB, LBA)"}
-       ,{0x0F, "Extended DOS (LBA)"}
-       ,{0x10, "OPUS"}
-       ,{0x11, "OS/2 BM: hidden DOS with 12-bit FAT"}
-       ,{0x12, "Compaq diagnostics"}
-       ,{0x14, "OS/2 BM: hidden DOS with 16-bit FAT (< 32MB)"}
-       ,{0x16, "OS/2 BM: hidden DOS with 16-bit FAT (>= 32MB)"}
-       ,{0x17, "OS/2 BM: hidden IFS (e.g. HPFS)"}
-       ,{0x18, "AST Windows swapfile"}
-       ,{0x24, "NEC DOS"}
-       ,{0x3C, "PartitionMagic recovery"}
-       ,{0x39, "plan9"}
-       ,{0x40, "VENIX 286"}
-       ,{0x41, "Linux/MINIX (sharing disk with DRDOS)"}
-       ,{0x42, "SFS or Linux swap (sharing disk with DRDOS)"}
-       ,{0x43, "Linux native (sharing disk with DRDOS)"}
-       ,{0x4D, "QNX 4.2 Primary"}
-       ,{0x4E, "QNX 4.2 Secondary"}
-       ,{0x4F, "QNX 4.2 Tertiary"}
-       ,{0x50, "DM (disk manager)"}
-       ,{0x51, "DM6 Aux1 (or Novell)"}
-       ,{0x52, "CP/M or Microport SysV/AT"}
-       ,{0x53, "DM6 Aux3"}
-       ,{0x54, "DM6"}
-       ,{0x55, "EZ-Drive (disk manager)"}
-       ,{0x56, "Golden Bow (disk manager)"}
-       ,{0x5c, "Priam Edisk (disk manager)"} /* according to S. Widlake */
-       ,{0x61, "SpeedStor"}
-       ,{0x63, "System V/386 (such as ISC UNIX), GNU HURD or Mach"}
-       ,{0x64, "Novell Netware/286 2.xx"}
-       ,{0x65, "Novell Netware/386 3.xx"}
-       ,{0x70, "DiskSecure Multi-Boot"}
-       ,{0x75, "PCIX"}
-       ,{0x77, "QNX4.x"}
-       ,{0x78, "QNX4.x 2nd part"}
-       ,{0x79, "QNX4.x 3rd part"}
-       ,{0x80, "Minix until 1.4a"}
-       ,{0x81, "Minix since 1.4b, early Linux partition or Mitac disk manager"}
-       ,{0x82, "Linux swap or Solaris x86"}
-       ,{0x83, "Linux native"}
-       ,{0x84, "OS/2 hidden C: drive"}
-       ,{0x85, "Linux extended"}
-       ,{0x86, "NTFS volume set??"}
-       ,{0x87, "NTFS volume set??"}
-       ,{0x93, "Amoeba file system"}
-       ,{0x94, "Amoeba bad block table"}
-       ,{0x9F, "BSD/OS"}
-       ,{0xA0, "Suspend to Disk"}
-       ,{0xA5, "FreeBSD/NetBSD/386BSD"}
-       ,{0xA6, "OpenBSD"}
-       ,{0xA7, "NeXTSTEP"}
-       ,{0xA9, "NetBSD"}
-       ,{0xAC, "IBM JFS"}
-       ,{0xAF, "HFS+"}
-       ,{0xB7, "BSDI BSD/386 file system"}
-       ,{0xB8, "BSDI BSD/386 swap"}
-       ,{0xBE, "Solaris x86 boot"}
-       ,{0xBF, "Solaris x86 (new)"}
-       ,{0xC1, "DRDOS/sec with 12-bit FAT"}
-       ,{0xC4, "DRDOS/sec with 16-bit FAT (< 32MB)"}
-       ,{0xC6, "DRDOS/sec with 16-bit FAT (>= 32MB)"}
-       ,{0xC7, "Syrinx"}
-       ,{0xDB, "CP/M, Concurrent CP/M, Concurrent DOS or CTOS"}
-       ,{0xE1, "DOS access or SpeedStor with 12-bit FAT extended partition"}
-       ,{0xE3, "DOS R/O or SpeedStor"}
-       ,{0xE4, "SpeedStor with 16-bit FAT extended partition < 1024 cyl."}
-       ,{0xEB, "BeOS file system"}
-       ,{0xEE, "EFI GPT"}
-       ,{0xEF, "EFI System Partition"}
-       ,{0xF1, "SpeedStor"}
-       ,{0xF2, "DOS 3.3+ Secondary"}
-       ,{0xF4, "SpeedStor large partition"}
-       ,{0xFE, "SpeedStor >1024 cyl. or LANstep"}
-       ,{0xFF, "Xenix bad blocks table"}
+/*
+ * A list of partition types, probably outdated.
+ */
+static const char *const part_types[256] = {
+       [0x00] = "unused",
+       [0x01] = "Primary DOS with 12 bit FAT",
+       [0x02] = "XENIX / file system",
+       [0x03] = "XENIX /usr file system",
+       [0x04] = "Primary DOS with 16 bit FAT (< 32MB)",
+       [0x05] = "Extended DOS",
+       [0x06] = "Primary 'big' DOS (>= 32MB)",
+       [0x07] = "OS/2 HPFS, NTFS, QNX-2 (16 bit) or Advanced UNIX",
+       [0x08] = "AIX file system or SplitDrive",
+       [0x09] = "AIX boot partition or Coherent",
+       [0x0A] = "OS/2 Boot Manager, OPUS or Coherent swap",
+       [0x0B] = "DOS or Windows 95 with 32 bit FAT",
+       [0x0C] = "DOS or Windows 95 with 32 bit FAT (LBA)",
+       [0x0E] = "Primary 'big' DOS (>= 32MB, LBA)",
+       [0x0F] = "Extended DOS (LBA)",
+       [0x10] = "OPUS",
+       [0x11] = "OS/2 BM: hidden DOS with 12-bit FAT",
+       [0x12] = "Compaq diagnostics",
+       [0x14] = "OS/2 BM: hidden DOS with 16-bit FAT (< 32MB)",
+       [0x16] = "OS/2 BM: hidden DOS with 16-bit FAT (>= 32MB)",
+       [0x17] = "OS/2 BM: hidden IFS (e.g. HPFS)",
+       [0x18] = "AST Windows swapfile",
+       [0x24] = "NEC DOS",
+       [0x3C] = "PartitionMagic recovery",
+       [0x39] = "plan9",
+       [0x40] = "VENIX 286",
+       [0x41] = "Linux/MINIX (sharing disk with DRDOS)",
+       [0x42] = "SFS or Linux swap (sharing disk with DRDOS)",
+       [0x43] = "Linux native (sharing disk with DRDOS)",
+       [0x4D] = "QNX 4.2 Primary",
+       [0x4E] = "QNX 4.2 Secondary",
+       [0x4F] = "QNX 4.2 Tertiary",
+       [0x50] = "DM (disk manager)",
+       [0x51] = "DM6 Aux1 (or Novell)",
+       [0x52] = "CP/M or Microport SysV/AT",
+       [0x53] = "DM6 Aux3",
+       [0x54] = "DM6",
+       [0x55] = "EZ-Drive (disk manager)",
+       [0x56] = "Golden Bow (disk manager)",
+       [0x5c] = "Priam Edisk (disk manager)", /* according to S. Widlake */
+       [0x61] = "SpeedStor",
+       [0x63] = "System V/386 (such as ISC UNIX), GNU HURD or Mach",
+       [0x64] = "Novell Netware/286 2.xx",
+       [0x65] = "Novell Netware/386 3.xx",
+       [0x70] = "DiskSecure Multi-Boot",
+       [0x75] = "PCIX",
+       [0x77] = "QNX4.x",
+       [0x78] = "QNX4.x 2nd part",
+       [0x79] = "QNX4.x 3rd part",
+       [0x80] = "Minix until 1.4a",
+       [0x81] = "Minix since 1.4b, early Linux partition or Mitac disk 
manager",
+       [0x82] = "Linux swap or Solaris x86",
+       [0x83] = "Linux native",
+       [0x84] = "OS/2 hidden C: drive",
+       [0x85] = "Linux extended",
+       [0x86] = "NTFS volume set??",
+       [0x87] = "NTFS volume set??",
+       [0x93] = "Amoeba file system",
+       [0x94] = "Amoeba bad block table",
+       [0x9F] = "BSD/OS",
+       [0xA0] = "Suspend to Disk",
+       [0xA5] = "FreeBSD/NetBSD/386BSD",
+       [0xA6] = "OpenBSD",
+       [0xA7] = "NeXTSTEP",
+       [0xA9] = "NetBSD",
+       [0xAC] = "IBM JFS",
+       [0xAF] = "HFS+",
+       [0xB7] = "BSDI BSD/386 file system",
+       [0xB8] = "BSDI BSD/386 swap",
+       [0xBE] = "Solaris x86 boot",
+       [0xBF] = "Solaris x86 (new)",
+       [0xC1] = "DRDOS/sec with 12-bit FAT",
+       [0xC4] = "DRDOS/sec with 16-bit FAT (< 32MB)",
+       [0xC6] = "DRDOS/sec with 16-bit FAT (>= 32MB)",
+       [0xC7] = "Syrinx",
+       [0xDB] = "CP/M, Concurrent CP/M, Concurrent DOS or CTOS",
+       [0xE1] = "DOS access or SpeedStor with 12-bit FAT extended partition",
+       [0xE3] = "DOS R/O or SpeedStor",
+       [0xE4] = "SpeedStor with 16-bit FAT extended partition < 1024 cyl.",
+       [0xEB] = "BeOS file system",
+       [0xEE] = "EFI GPT",
+       [0xEF] = "EFI System Partition",
+       [0xF1] = "SpeedStor",
+       [0xF2] = "DOS 3.3+ Secondary",
+       [0xF4] = "SpeedStor large partition",
+       [0xFE] = "SpeedStor >1024 cyl. or LANstep",
+       [0xFF] = "Xenix bad blocks table",
 };
 
+static const char *
+get_type(int t)
+{
+       const char *ret;
+
+       ret = (t >= 0 && t <= 255) ? part_types[t] : NULL;
+       return ret ? ret : "unknown";
+}
+
+
 static void print_s0(void);
 static void print_part(const struct dos_partition *);
 static void init_sector0(unsigned long start);
@@ -235,7 +244,6 @@ static int read_s0(void);
 static int write_s0(void);
 static int ok(const char *str);
 static int decimal(const char *str, int *num, int deflt);
-static const char *get_type(int type);
 static int read_config(char *config_file);
 static void reset_boot(void);
 static int sanitize_partition(struct dos_partition *);
@@ -940,23 +948,6 @@ decimal(const char *str, int *num, int d
 
 }
 
-static const char *
-get_type(int type)
-{
-       int     numentries = (sizeof(part_types)/sizeof(struct part_type));
-       int     counter = 0;
-       struct  part_type *ptr = part_types;
-
-
-       while(counter < numentries) {
-               if(ptr->type == type)
-                       return(ptr->name);
-               ptr++;
-               counter++;
-       }
-       return("unknown");
-}
-
 
 static void
 parse_config_line(char *line, CMD *command)
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