204 lines
3.8 KiB
C
204 lines
3.8 KiB
C
/*
|
|
* cvt_pt.c
|
|
*
|
|
* Covert partition type. $Revision: 1.4 $
|
|
*
|
|
* Copyright (c) 1999, Eryk Vershen
|
|
*
|
|
* History:
|
|
* Log: cvt_pt.c,v
|
|
* Revision 1.2 2000/05/16 13:56:11 eryk
|
|
* Minor fixes
|
|
*
|
|
* Revision 1.1 2000/02/13 22:04:08 eryk
|
|
* Initial revision
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stdarg.h>
|
|
#include <errno.h>
|
|
#include <ctype.h>
|
|
|
|
#include "partition_map.h"
|
|
#include "errors.h"
|
|
|
|
|
|
/*
|
|
* Defines / Constants
|
|
*/
|
|
#define CFLAG_DEFAULT 0
|
|
#define DFLAG_DEFAULT 0
|
|
#define HFLAG_DEFAULT 0
|
|
#define INTERACT_DEFAULT 0
|
|
#define RFLAG_DEFAULT 0
|
|
|
|
|
|
/*
|
|
* Structs / Types
|
|
*/
|
|
|
|
|
|
/*
|
|
* Global variables
|
|
*/
|
|
int hflag = HFLAG_DEFAULT; /* show help */
|
|
int dflag = DFLAG_DEFAULT; /* turn on debugging commands and printout */
|
|
int rflag = RFLAG_DEFAULT; /* open device read Only */
|
|
int interactive = INTERACT_DEFAULT;
|
|
int cflag = CFLAG_DEFAULT; /* compute device size */
|
|
|
|
|
|
/*
|
|
* Forward declarations
|
|
*/
|
|
void process(char *filename);
|
|
|
|
|
|
/*
|
|
* Start here ...
|
|
*/
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
register int i;
|
|
#ifdef notdef
|
|
register int c;
|
|
extern char *optarg; /* pointer to argument */
|
|
extern int optind; /* next argv index */
|
|
extern int opterr; /* who does error messages */
|
|
extern int optopt; /* char that caused the error */
|
|
int getopt_error; /* getopt choked */
|
|
char option_error[100]; /* buffer for error message */
|
|
char *arg_option = 0;
|
|
int bool_option = 0;
|
|
#else
|
|
int optind = 1;
|
|
#endif
|
|
|
|
init_program_name(argv);
|
|
|
|
#ifdef notdef
|
|
opterr = 0; /* tell getopt to be quiet */
|
|
|
|
/*
|
|
* Changes to getopt's last argument should
|
|
* be reflected in the string printed by the
|
|
* usage() function.
|
|
*/
|
|
while ((c = getopt(argc, argv, "a:b")) != EOF) {
|
|
if (c == '?') {
|
|
getopt_error = 1;
|
|
c = optopt;
|
|
} else {
|
|
getopt_error = 0;
|
|
}
|
|
|
|
switch (c) {
|
|
case 'a':
|
|
if (getopt_error) {
|
|
usage("missing argument");
|
|
} else {
|
|
arg_option = optarg;
|
|
}
|
|
break;
|
|
case 'b':
|
|
bool_option = 1;
|
|
break;
|
|
default:
|
|
snprintf(option_error, sizeof(option_error),
|
|
"no such option as -%c", c);
|
|
usage(option_error);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (optind >= argc) {
|
|
usage("no file argument");
|
|
}
|
|
for (i = optind ; i < argc; i++) {
|
|
process(argv[i]);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
trim_num(char *s)
|
|
{
|
|
char *t;
|
|
int n;
|
|
|
|
for (t = s; *t; t++) {
|
|
}
|
|
|
|
for (t--; t >= s; t--) {
|
|
if (!isdigit(*t)) {
|
|
t++;
|
|
if (*t) {
|
|
n = atoi(t);
|
|
*t = 0;
|
|
} else {
|
|
n = -1;
|
|
}
|
|
return n;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* The operation to apply to each file ...
|
|
*/
|
|
void
|
|
process(char *filename)
|
|
{
|
|
char *s;
|
|
int index;
|
|
partition_map_header *map;
|
|
int valid_file;
|
|
partition_map * entry;
|
|
|
|
//printf("Processing %s\n", filename);
|
|
|
|
// 1) strip off number from end of filename
|
|
s = strdup(filename);
|
|
index = trim_num(s);
|
|
|
|
if (index < 0) {
|
|
fatal(-1, "%s does not end in a number", filename);
|
|
}
|
|
|
|
// 2) open prefix of filename as partition map
|
|
map = open_partition_map(s, &valid_file, 0);
|
|
if (!valid_file) {
|
|
fatal(-1, "%s does not have a partition map", s);
|
|
return;
|
|
}
|
|
|
|
// 3) verify the type for the partition;
|
|
|
|
if (map->writable == 0) {
|
|
fatal(-1, "The map is not writable");
|
|
return;
|
|
}
|
|
|
|
// 4) find partition and change it
|
|
entry = find_entry_by_disk_address(index, map);
|
|
if (entry == NULL) {
|
|
fatal(-1, "No such partition");
|
|
} else if (strcmp(entry->data->dpme_type, kHFSType) != 0) {
|
|
fatal(-1, "Can't convert a partition with type %s",
|
|
entry->data->dpme_type);
|
|
} else {
|
|
// 4a) modify the type
|
|
strncpy(entry->data->dpme_type, kUnixType, DPISTRLEN);
|
|
|
|
// 5) and write back.
|
|
write_partition_map(map);
|
|
}
|
|
}
|