656 lines
16 KiB
C
656 lines
16 KiB
C
/*
|
||
* Mach Operating System
|
||
* Copyright (c) 1992 Carnegie Mellon University
|
||
* All Rights Reserved.
|
||
*
|
||
* Permission to use, copy, modify and distribute this software and its
|
||
* documentation is hereby granted, provided that both the copyright
|
||
* notice and this permission notice appear in all copies of the
|
||
* software, derivative works or modified versions, and any portions
|
||
* thereof, and that both notices appear in supporting documentation.
|
||
*
|
||
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
||
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
|
||
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
||
*
|
||
* Carnegie Mellon requests users of this software to return to
|
||
*
|
||
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
||
* School of Computer Science
|
||
* Carnegie Mellon University
|
||
* Pittsburgh PA 15213-3890
|
||
*
|
||
* any improvements or extensions that they make and grant Carnegie Mellon
|
||
* the rights to redistribute these changes.
|
||
*/
|
||
|
||
#ifndef lint
|
||
static char rcsid[] = "$Id: fdisk.c,v 1.8 1994/12/05 20:15:41 cgd Exp $";
|
||
#endif /* not lint */
|
||
|
||
#include <sys/types.h>
|
||
#include <sys/disklabel.h>
|
||
#include <sys/ioctl.h>
|
||
#include <sys/stat.h>
|
||
|
||
#include <ctype.h>
|
||
#include <err.h>
|
||
#include <fcntl.h>
|
||
#include <stdio.h>
|
||
#include <stdlib.h>
|
||
#include <string.h>
|
||
#include <unistd.h>
|
||
|
||
#define LBUF 100
|
||
static char lbuf[LBUF];
|
||
|
||
/*
|
||
* 14-Dec-89 Robert Baron (rvb) at Carnegie-Mellon University
|
||
* Copyright (c) 1989 Robert. V. Baron
|
||
* Created.
|
||
*/
|
||
|
||
char *disk = "/dev/rwd0d";
|
||
|
||
struct disklabel disklabel; /* disk parameters */
|
||
|
||
int cylinders, sectors, heads, cylindersectors, disksectors;
|
||
|
||
struct mboot {
|
||
unsigned char padding[2]; /* force the longs to be long alligned */
|
||
unsigned char bootinst[DOSPARTOFF];
|
||
struct dos_partition parts[4];
|
||
unsigned short int signature;
|
||
};
|
||
struct mboot mboot;
|
||
|
||
#define ACTIVE 0x80
|
||
#define BOOT_MAGIC 0xAA55
|
||
|
||
int dos_cylinders;
|
||
int dos_heads;
|
||
int dos_sectors;
|
||
int dos_cylindersectors;
|
||
|
||
#define DOSSECT(s,c) (((s) & 0x3f) | (((c) >> 2) & 0xc0))
|
||
#define DOSCYL(c) ((c) & 0xff)
|
||
int partition = -1;
|
||
|
||
int a_flag; /* set active partition */
|
||
int i_flag; /* replace partition data */
|
||
int u_flag; /* update partition data */
|
||
|
||
unsigned char bootcode[] = {
|
||
0x33, 0xc0, 0xfa, 0x8e, 0xd0, 0xbc, 0x00, 0x7c, 0x8e, 0xc0, 0x8e, 0xd8, 0xfb, 0x8b, 0xf4, 0xbf,
|
||
0x00, 0x06, 0xb9, 0x00, 0x02, 0xfc, 0xf3, 0xa4, 0xea, 0x1d, 0x06, 0x00, 0x00, 0xb0, 0x04, 0xbe,
|
||
0xbe, 0x07, 0x80, 0x3c, 0x80, 0x74, 0x0c, 0x83, 0xc6, 0x10, 0xfe, 0xc8, 0x75, 0xf4, 0xbe, 0xbd,
|
||
0x06, 0xeb, 0x43, 0x8b, 0xfe, 0x8b, 0x14, 0x8b, 0x4c, 0x02, 0x83, 0xc6, 0x10, 0xfe, 0xc8, 0x74,
|
||
0x0a, 0x80, 0x3c, 0x80, 0x75, 0xf4, 0xbe, 0xbd, 0x06, 0xeb, 0x2b, 0xbd, 0x05, 0x00, 0xbb, 0x00,
|
||
0x7c, 0xb8, 0x01, 0x02, 0xcd, 0x13, 0x73, 0x0c, 0x33, 0xc0, 0xcd, 0x13, 0x4d, 0x75, 0xef, 0xbe,
|
||
0x9e, 0x06, 0xeb, 0x12, 0x81, 0x3e, 0xfe, 0x7d, 0x55, 0xaa, 0x75, 0x07, 0x8b, 0xf7, 0xea, 0x00,
|
||
0x7c, 0x00, 0x00, 0xbe, 0x85, 0x06, 0x2e, 0xac, 0x0a, 0xc0, 0x74, 0x06, 0xb4, 0x0e, 0xcd, 0x10,
|
||
0xeb, 0xf4, 0xfb, 0xeb, 0xfe,
|
||
'M', 'i', 's', 's', 'i', 'n', 'g', ' ',
|
||
'o', 'p', 'e', 'r', 'a', 't', 'i', 'n', 'g', ' ', 's', 'y', 's', 't', 'e', 'm', 0,
|
||
'E', 'r', 'r', 'o', 'r', ' ', 'l', 'o', 'a', 'd', 'i', 'n', 'g', ' ',
|
||
'o', 'p', 'e', 'r', 'a', 't', 'i', 'n', 'g', ' ', 's', 'y', 's', 't', 'e', 'm', 0,
|
||
'I', 'n', 'v', 'a', 'l', 'i', 'd', ' ',
|
||
'p', 'a', 'r', 't', 'i', 't', 'i', 'o', 'n', ' ', 't', 'a', 'b', 'l', 'e', 0,
|
||
'A', 'u', 't', 'h', 'o', 'r', ' ', '-', ' ',
|
||
'S', 'i', 'e', 'g', 'm', 'a', 'r', ' ', 'S', 'c', 'h', 'm', 'i', 'd', 't', 0,0,0,
|
||
|
||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
||
};
|
||
|
||
struct part_type {
|
||
int type;
|
||
char *name;
|
||
} part_types[] = {
|
||
{0x00, "unused"},
|
||
{0x01, "Primary DOS with 12 bit FAT"},
|
||
{0x02, "XENIX / filesystem"},
|
||
{0x03, "XENIX /usr filesystem"},
|
||
{0x04, "Primary DOS with 16 bit FAT"},
|
||
{0x05, "Extended DOS"},
|
||
{0x06, "Primary 'big' DOS (> 32MB)"},
|
||
{0x07, "OS/2 HPFS, QNX or Advanced UNIX"},
|
||
{0x08, "AIX filesystem"},
|
||
{0x09, "AIX boot partition or Coherent"},
|
||
{0x0A, "OS/2 Boot Manager or OPUS"},
|
||
{0x10, "OPUS"},
|
||
{0x40, "VENIX 286"},
|
||
{0x50, "DM"},
|
||
{0x51, "DM"},
|
||
{0x52, "CP/M or Microport SysV/AT"},
|
||
{0x56, "GB"},
|
||
{0x61, "Speed"},
|
||
{0x63, "ISC UNIX, other System V/386, GNU HURD or Mach"},
|
||
{0x64, "Novell Netware 2.xx"},
|
||
{0x65, "Novell Netware 3.xx"},
|
||
{0x75, "PCIX"},
|
||
{0x80, "Minix 1.1 ... 1.4a"},
|
||
{0x81, "Minix 1.4b ... 1.5.10"},
|
||
{0x82, "Linux"},
|
||
{0x93, "Amoeba filesystem"},
|
||
{0x94, "Amoeba bad block table"},
|
||
{0xA5, "NetBSD"},
|
||
{0xB7, "BSDI BSD/386 filesystem"},
|
||
{0xB8, "BSDI BSD/386 swap"},
|
||
{0xDB, "Concurrent CPM or C.DOS or CTOS"},
|
||
{0xE1, "Speed"},
|
||
{0xE3, "Speed"},
|
||
{0xE4, "Speed"},
|
||
{0xF1, "Speed"},
|
||
{0xF2, "DOS 3.3+ Secondary"},
|
||
{0xF4, "Speed"},
|
||
{0xFF, "BBT (Bad Blocks Table)"},
|
||
};
|
||
|
||
void usage __P((void));
|
||
void print_s0 __P((int));
|
||
void print_part __P((int));
|
||
void init_sector0 __P((int));
|
||
void change_part __P((int));
|
||
void print_params __P((void));
|
||
void change_active __P((int));
|
||
void get_params_to_use __P((void));
|
||
void dos __P((int, unsigned char *, unsigned char *, unsigned char *));
|
||
int open_disk __P((int));
|
||
int read_disk __P((int, void *));
|
||
int write_disk __P((int, void *));
|
||
int get_params __P((void));
|
||
int read_s0 __P((void));
|
||
int write_s0 __P((void));
|
||
int yesno __P((char *));
|
||
void decimal __P((char *, int *));
|
||
int type_match __P((const void *, const void *));
|
||
char *get_type __P((int));
|
||
|
||
int
|
||
main(argc, argv)
|
||
int argc;
|
||
char *argv[];
|
||
{
|
||
int ch;
|
||
int part;
|
||
|
||
a_flag = i_flag = u_flag = 0;
|
||
while ((ch = getopt(argc, argv, "0123aiu")) != -1)
|
||
switch (ch) {
|
||
case '0':
|
||
partition = 0;
|
||
break;
|
||
case '1':
|
||
partition = 1;
|
||
break;
|
||
case '2':
|
||
partition = 2;
|
||
break;
|
||
case '3':
|
||
partition = 3;
|
||
break;
|
||
case 'a':
|
||
a_flag = 1;
|
||
break;
|
||
case 'i':
|
||
i_flag = 1;
|
||
case 'u':
|
||
u_flag = 1;
|
||
break;
|
||
default:
|
||
usage();
|
||
}
|
||
argc -= optind;
|
||
argv += optind;
|
||
|
||
if (argc > 0)
|
||
disk = argv[0];
|
||
|
||
if (open_disk(a_flag || i_flag || u_flag) < 0)
|
||
exit(1);
|
||
|
||
printf("******* Working on device %s *******\n", disk);
|
||
if (u_flag)
|
||
get_params_to_use();
|
||
else
|
||
print_params();
|
||
|
||
if (read_s0())
|
||
init_sector0(1);
|
||
|
||
printf("Warning: BIOS sector numbering starts with sector 1\n");
|
||
printf("Information from DOS bootblock is:\n");
|
||
if (partition == -1) {
|
||
for (part = 0; part < NDOSPART; part++)
|
||
change_part(part);
|
||
} else
|
||
change_part(partition);
|
||
|
||
if (u_flag || a_flag)
|
||
change_active(partition);
|
||
|
||
if (u_flag || a_flag) {
|
||
printf("\nWe haven't changed the partition table yet. ");
|
||
printf("This is your last chance.\n");
|
||
print_s0(-1);
|
||
if (yesno("Should we write new partition table?"))
|
||
write_s0();
|
||
}
|
||
|
||
exit(0);
|
||
}
|
||
|
||
void
|
||
usage()
|
||
{
|
||
|
||
(void)fprintf(stderr, "usage: fdisk [-aiu] [-0|-1|-2|-3] [device]\n");
|
||
exit(1);
|
||
}
|
||
|
||
void
|
||
print_s0(which)
|
||
int which;
|
||
{
|
||
int part;
|
||
|
||
print_params();
|
||
printf("Information from DOS bootblock is:\n");
|
||
if (which == -1) {
|
||
for (part = 0; part < NDOSPART; part++)
|
||
printf("%d: ", part), print_part(part);
|
||
} else
|
||
print_part(which);
|
||
}
|
||
|
||
static struct dos_partition mtpart = { 0 };
|
||
|
||
void
|
||
print_part(part)
|
||
int part;
|
||
{
|
||
struct dos_partition *partp;
|
||
|
||
partp = &mboot.parts[part];
|
||
if (!memcmp(partp, &mtpart, sizeof(struct dos_partition))) {
|
||
printf("<UNUSED>\n");
|
||
return;
|
||
}
|
||
printf("sysid %d (%s)\n", partp->dp_typ, get_type(partp->dp_typ));
|
||
printf(" start %d, size %d (%d MB), flag %x\n",
|
||
partp->dp_start, partp->dp_size,
|
||
partp->dp_size * 512 / (1024 * 1024), partp->dp_flag);
|
||
printf("\tbeg: cylinder %4d, head %3d, sector %2d\n",
|
||
DPCYL(partp->dp_scyl, partp->dp_ssect),
|
||
partp->dp_shd, DPSECT(partp->dp_ssect));
|
||
printf("\tend: cylinder %4d, head %3d, sector %2d\n",
|
||
DPCYL(partp->dp_ecyl, partp->dp_esect),
|
||
partp->dp_ehd, DPSECT(partp->dp_esect));
|
||
}
|
||
|
||
void
|
||
init_sector0(start)
|
||
int start;
|
||
{
|
||
struct dos_partition *partp;
|
||
|
||
memcpy(mboot.bootinst, bootcode, sizeof(bootcode));
|
||
mboot.signature = BOOT_MAGIC;
|
||
|
||
partp = &mboot.parts[3];
|
||
partp->dp_typ = DOSPTYP_386BSD;
|
||
partp->dp_flag = ACTIVE;
|
||
partp->dp_start = start;
|
||
partp->dp_size = disksectors - start;
|
||
|
||
dos(partp->dp_start,
|
||
&partp->dp_scyl, &partp->dp_shd, &partp->dp_ssect);
|
||
dos(partp->dp_start + partp->dp_size - 1,
|
||
&partp->dp_ecyl, &partp->dp_ehd, &partp->dp_esect);
|
||
}
|
||
|
||
void
|
||
change_part(part)
|
||
int part;
|
||
{
|
||
struct dos_partition *partp;
|
||
|
||
partp = &mboot.parts[part];
|
||
|
||
printf("The data for partition %d is:\n", part);
|
||
print_part(part);
|
||
|
||
if (!u_flag || !yesno("Do you want to change it?"))
|
||
return;
|
||
|
||
if (i_flag) {
|
||
memset(partp, 0, sizeof(*partp));
|
||
if (part == 3) {
|
||
init_sector0(1);
|
||
printf("\nThe static data for the DOS partition 3 has been reinitialized to:\n");
|
||
print_part(part);
|
||
}
|
||
}
|
||
|
||
do {
|
||
{
|
||
int sysid, start, size;
|
||
|
||
sysid = partp->dp_typ,
|
||
start = partp->dp_start,
|
||
size = partp->dp_size;
|
||
decimal("sysid", &sysid);
|
||
decimal("start", &start);
|
||
decimal("size", &size);
|
||
partp->dp_typ = sysid;
|
||
partp->dp_start = start;
|
||
partp->dp_size = size;
|
||
}
|
||
|
||
if (yesno("Explicitly specify beg/end address?")) {
|
||
int tsector, tcylinder, thead;
|
||
|
||
tcylinder = DPCYL(partp->dp_scyl, partp->dp_ssect);
|
||
thead = partp->dp_shd;
|
||
tsector = DPSECT(partp->dp_ssect);
|
||
decimal("beginning cylinder", &tcylinder);
|
||
decimal("beginning head", &thead);
|
||
decimal("beginning sector", &tsector);
|
||
partp->dp_scyl = DOSCYL(tcylinder);
|
||
partp->dp_shd = thead;
|
||
partp->dp_ssect = DOSSECT(tsector, tcylinder);
|
||
|
||
tcylinder = DPCYL(partp->dp_ecyl, partp->dp_esect);
|
||
thead = partp->dp_ehd;
|
||
tsector = DPSECT(partp->dp_esect);
|
||
decimal("ending cylinder", &tcylinder);
|
||
decimal("ending head", &thead);
|
||
decimal("ending sector", &tsector);
|
||
partp->dp_ecyl = DOSCYL(tcylinder);
|
||
partp->dp_ehd = thead;
|
||
partp->dp_esect = DOSSECT(tsector, tcylinder);
|
||
} else {
|
||
dos(partp->dp_start,
|
||
&partp->dp_scyl, &partp->dp_shd, &partp->dp_ssect);
|
||
dos(partp->dp_start + partp->dp_size - 1,
|
||
&partp->dp_ecyl, &partp->dp_ehd, &partp->dp_esect);
|
||
}
|
||
|
||
print_part(part);
|
||
} while (!yesno("Is this entry okay?"));
|
||
}
|
||
|
||
void
|
||
print_params()
|
||
{
|
||
|
||
printf("parameters extracted from in-core disklabel are:\n");
|
||
printf("cylinders=%d heads=%d sectors/track=%d (%d sectors/cylinder)\n\n",
|
||
cylinders, heads, sectors, cylindersectors);
|
||
if (dos_sectors > 63 || dos_cylinders > 1023 || dos_heads > 255)
|
||
printf("Figures below won't work with BIOS for partitions not in cylinder 1\n");
|
||
printf("parameters to be used for BIOS calculations are:\n");
|
||
printf("cylinders=%d heads=%d sectors/track=%d (%d sectors/cylinder)\n\n",
|
||
dos_cylinders, dos_heads, dos_sectors, dos_cylindersectors);
|
||
}
|
||
|
||
void
|
||
change_active(which)
|
||
int which;
|
||
{
|
||
struct dos_partition *partp;
|
||
int part;
|
||
int active = 3;
|
||
|
||
partp = &mboot.parts[0];
|
||
|
||
if (a_flag && which != -1)
|
||
active = which;
|
||
else {
|
||
for (part = 0; part < NDOSPART; part++)
|
||
if (partp[part].dp_flag & ACTIVE)
|
||
active = part;
|
||
}
|
||
if (yesno("Do you want to change the active partition?")) {
|
||
do {
|
||
decimal("active partition", &active);
|
||
} while (!yesno("Are you happy with this choice?"));
|
||
}
|
||
for (part = 0; part < NDOSPART; part++)
|
||
partp[part].dp_flag &= ~ACTIVE;
|
||
partp[active].dp_flag |= ACTIVE;
|
||
}
|
||
|
||
void
|
||
get_params_to_use()
|
||
{
|
||
|
||
print_params();
|
||
if (yesno("Do you want to change our idea of what BIOS thinks?")) {
|
||
do {
|
||
decimal("BIOS's idea of #cylinders", &dos_cylinders);
|
||
decimal("BIOS's idea of #heads", &dos_heads);
|
||
decimal("BIOS's idea of #sectors", &dos_sectors);
|
||
dos_cylindersectors = dos_heads * dos_sectors;
|
||
print_params();
|
||
} while (!yesno("Are you happy with this choice?"));
|
||
}
|
||
}
|
||
|
||
/***********************************************\
|
||
* Change real numbers into strange dos numbers *
|
||
\***********************************************/
|
||
void
|
||
dos(sector, cylinderp, headp, sectorp)
|
||
int sector;
|
||
unsigned char *cylinderp, *headp, *sectorp;
|
||
{
|
||
int cylinder, head;
|
||
|
||
cylinder = sector / dos_cylindersectors;
|
||
sector -= cylinder * dos_cylindersectors;
|
||
|
||
head = sector / dos_sectors;
|
||
sector -= head * dos_sectors;
|
||
|
||
*cylinderp = DOSCYL(cylinder);
|
||
*headp = head;
|
||
*sectorp = DOSSECT(sector + 1, cylinder);
|
||
}
|
||
|
||
int fd;
|
||
|
||
int
|
||
open_disk(u_flag)
|
||
int u_flag;
|
||
{
|
||
struct stat st;
|
||
|
||
if ((fd = open(disk, u_flag ? O_RDWR : O_RDONLY)) == -1) {
|
||
warn("%s", disk);
|
||
return (-1);
|
||
}
|
||
if (fstat(fd, &st) == -1) {
|
||
close(fd);
|
||
warn("%s", disk);
|
||
return (-1);
|
||
}
|
||
if (!S_ISCHR(st.st_mode) && !S_ISREG(st.st_mode)) {
|
||
close(fd);
|
||
warnx("%s is not a character device or regular file", disk);
|
||
return (-1);
|
||
}
|
||
if (get_params() == -1) {
|
||
close(fd);
|
||
return (-1);
|
||
}
|
||
return (0);
|
||
}
|
||
|
||
int
|
||
read_disk(sector, buf)
|
||
int sector;
|
||
void *buf;
|
||
{
|
||
|
||
if (lseek(fd, (off_t)(sector * 512), 0) == -1)
|
||
return (-1);
|
||
return (read(fd, buf, 512));
|
||
}
|
||
|
||
int
|
||
write_disk(sector, buf)
|
||
int sector;
|
||
void *buf;
|
||
{
|
||
|
||
if (lseek(fd, (off_t)(sector * 512), 0) == -1)
|
||
return (-1);
|
||
return (write(fd, buf, 512));
|
||
}
|
||
|
||
int
|
||
get_params()
|
||
{
|
||
|
||
if (ioctl(fd, DIOCGDINFO, &disklabel) == -1) {
|
||
warn("DIOCGDINFO");
|
||
return (-1);
|
||
}
|
||
|
||
dos_cylinders = cylinders = disklabel.d_ncylinders;
|
||
dos_heads = heads = disklabel.d_ntracks;
|
||
dos_sectors = sectors = disklabel.d_nsectors;
|
||
dos_cylindersectors = cylindersectors = heads * sectors;
|
||
disksectors = cylinders * heads * sectors;
|
||
|
||
return (0);
|
||
}
|
||
|
||
int
|
||
read_s0()
|
||
{
|
||
|
||
if (read_disk(0, mboot.bootinst) == -1) {
|
||
warn("can't read fdisk partition table");
|
||
return (-1);
|
||
}
|
||
if (mboot.signature != BOOT_MAGIC) {
|
||
warn("invalid fdisk partition table found");
|
||
/* So should we initialize things? */
|
||
return (-1);
|
||
}
|
||
return (0);
|
||
}
|
||
|
||
int
|
||
write_s0()
|
||
{
|
||
int flag;
|
||
|
||
/*
|
||
* write enable label sector before write (if necessary),
|
||
* disable after writing.
|
||
* needed if the disklabel protected area also protects
|
||
* sector 0. (e.g. empty disk)
|
||
*/
|
||
flag = 1;
|
||
if (ioctl(fd, DIOCWLABEL, &flag) < 0)
|
||
warn("DIOCWLABEL");
|
||
if (write_disk(0, mboot.bootinst) == -1) {
|
||
warn("can't write fdisk partition table");
|
||
return -1;
|
||
}
|
||
flag = 0;
|
||
if (ioctl(fd, DIOCWLABEL, &flag) < 0)
|
||
warn("DIOCWLABEL");
|
||
}
|
||
|
||
int
|
||
yesno(str)
|
||
char *str;
|
||
{
|
||
int ch, first;
|
||
|
||
printf("%s [n] ", str);
|
||
|
||
first = ch = getchar();
|
||
while (ch != '\n' && ch != EOF)
|
||
ch = getchar();
|
||
return (first == 'y' || first == 'Y');
|
||
}
|
||
|
||
void
|
||
decimal(str, num)
|
||
char *str;
|
||
int *num;
|
||
{
|
||
int acc = 0;
|
||
char *cp;
|
||
|
||
for (;; printf("%s is not a valid decimal number.\n", lbuf)) {
|
||
printf("Supply a decimal value for \"%s\" [%d] ", str, *num);
|
||
|
||
fgets(lbuf, LBUF, stdin);
|
||
lbuf[strlen(lbuf)-1] = '\0';
|
||
cp = lbuf;
|
||
|
||
cp += strspn(cp, " \t");
|
||
if (*cp == '\0')
|
||
return;
|
||
|
||
if (!isdigit(*cp))
|
||
continue;
|
||
acc = strtol(lbuf, &cp, 10);
|
||
|
||
cp += strspn(cp, " \t");
|
||
if (*cp != '\0')
|
||
continue;
|
||
|
||
*num = acc;
|
||
return;
|
||
}
|
||
|
||
}
|
||
|
||
int
|
||
type_match(key, item)
|
||
const void *key, *item;
|
||
{
|
||
const int *typep = key;
|
||
const struct part_type *ptr = item;
|
||
|
||
if (*typep < ptr->type)
|
||
return (-1);
|
||
if (*typep > ptr->type)
|
||
return (1);
|
||
return (0);
|
||
}
|
||
|
||
char *
|
||
get_type(type)
|
||
int type;
|
||
{
|
||
struct part_type *ptr;
|
||
|
||
ptr = bsearch(&type, part_types,
|
||
sizeof(part_types) / sizeof(struct part_type),
|
||
sizeof(struct part_type), type_match);
|
||
if (ptr == 0)
|
||
return ("unknown");
|
||
else
|
||
return (ptr->name);
|
||
}
|