809 lines
19 KiB
C
Executable File
809 lines
19 KiB
C
Executable File
#include "sysincludes.h"
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#include "mtools.h"
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#include "codepage.h"
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#include "mtoolsPaths.h"
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/* global variables */
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/* they are not really harmful here, because there is only one configuration
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* file per invocations */
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#ifndef NO_CONFIG
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#define MAX_LINE_LEN 256
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/* scanner */
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static char buffer[MAX_LINE_LEN+1]; /* buffer for the whole line */
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static char *pos; /* position in line */
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static char *token; /* last scanned token */
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static int token_length; /* length of the token */
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static FILE *fp; /* file pointer for configuration file */
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static int linenumber; /* current line number. Only used for printing
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* error messages */
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static int lastTokenLinenumber; /* line numnber for last token */
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static const char *filename; /* current file name. Only used for printing
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* error messages */
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static int file_nr=0;
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static int flag_mask; /* mask of currently set flags */
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/* devices */
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static int cur_devs; /* current number of defined devices */
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static int cur_dev; /* device being filled in. If negative, none */
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static int trusted=0; /* is the currently parsed device entry trusted? */
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static int nr_dev; /* number of devices that the current table can hold */
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static int token_nr; /* number of tokens in line */
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static char letters[][2] = { /* drive letter to letter-as-a-string */
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"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
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"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z",
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};
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#endif /* !NO_CONFIG */
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struct device *devices; /* the device table */
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/* "environment" variables */
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unsigned int mtools_skip_check=0;
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unsigned int mtools_fat_compatibility=0;
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unsigned int mtools_ignore_short_case=0;
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unsigned int mtools_rate_0=0;
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unsigned int mtools_rate_any=0;
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unsigned int mtools_no_vfat=0;
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unsigned int mtools_numeric_tail=1;
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unsigned int mtools_dotted_dir=0;
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unsigned int mtools_twenty_four_hour_clock=1;
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char *mtools_date_string="mm-dd-yyyy";
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char *country_string=0;
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#ifndef NO_CONFIG
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typedef struct switches_l {
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const char *name;
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caddr_t address;
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enum {
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T_INT,
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T_STRING,
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T_UINT
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} type;
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} switches_t;
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static switches_t switches[] = {
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{ "MTOOLS_LOWER_CASE", (caddr_t) & mtools_ignore_short_case, T_UINT },
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{ "MTOOLS_FAT_COMPATIBILITY", (caddr_t) & mtools_fat_compatibility, T_UINT },
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{ "MTOOLS_SKIP_CHECK", (caddr_t) & mtools_skip_check, T_UINT },
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{ "MTOOLS_NO_VFAT", (caddr_t) & mtools_no_vfat, T_UINT },
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{ "MTOOLS_RATE_0", (caddr_t) &mtools_rate_0, T_UINT },
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{ "MTOOLS_RATE_ANY", (caddr_t) &mtools_rate_any, T_UINT },
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{ "MTOOLS_NAME_NUMERIC_TAIL", (caddr_t) &mtools_numeric_tail, T_UINT },
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{ "MTOOLS_DOTTED_DIR", (caddr_t) &mtools_dotted_dir, T_UINT },
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{ "MTOOLS_TWENTY_FOUR_HOUR_CLOCK",
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(caddr_t) &mtools_twenty_four_hour_clock, T_UINT },
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{ "MTOOLS_DATE_STRING",
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(caddr_t) &mtools_date_string, T_STRING },
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{ "COUNTRY", (caddr_t) &country_string, T_STRING }
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};
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typedef struct {
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const char *name;
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int flag;
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} flags_t;
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static flags_t openflags[] = {
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#ifdef O_SYNC
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{ "sync", O_SYNC },
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#endif
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#ifdef O_NDELAY
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{ "nodelay", O_NDELAY },
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#endif
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#ifdef O_EXCL
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{ "exclusive", O_EXCL },
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#endif
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{ "none", 0 } /* hack for those compilers that choke on commas
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* after the last element of an array */
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};
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static flags_t misc_flags[] = {
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#ifdef USE_XDF
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{ "use_xdf", USE_XDF_FLAG },
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#endif
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{ "scsi", SCSI_FLAG },
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{ "nolock", NOLOCK_FLAG },
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{ "mformat_only", MFORMAT_ONLY_FLAG },
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{ "filter", FILTER_FLAG },
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{ "privileged", PRIV_FLAG },
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{ "vold", VOLD_FLAG },
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{ "remote", FLOPPYD_FLAG }
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};
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static struct {
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const char *name;
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signed char fat_bits;
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int tracks;
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unsigned short heads;
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unsigned short sectors;
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} default_formats[] = {
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{ "hd514", 12, 80, 2, 15 },
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{ "high-density-5-1/4", 12, 80, 2, 15 },
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{ "1.2m", 12, 80, 2, 15 },
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{ "hd312", 12, 80, 2, 18 },
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{ "high-density-3-1/2", 12, 80, 2, 18 },
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{ "1.44m", 12, 80, 2, 18 },
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{ "dd312", 12, 80, 2, 9 },
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{ "double-density-3-1/2", 12, 80, 2, 9 },
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{ "720k", 12, 80, 2, 9 },
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{ "dd514", 12, 40, 2, 9 },
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{ "double-density-5-1/4", 12, 40, 2, 9 },
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{ "360k", 12, 40, 2, 9 },
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{ "320k", 12, 40, 2, 8 },
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{ "180k", 12, 40, 1, 9 },
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{ "160k", 12, 40, 1, 8 }
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};
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#define OFFS(x) ((caddr_t)&((struct device *)0)->x)
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static switches_t dswitches[]= {
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{ "FILE", OFFS(name), T_STRING },
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{ "OFFSET", OFFS(offset), T_UINT },
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{ "PARTITION", OFFS(partition), T_UINT },
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{ "FAT", OFFS(fat_bits), T_INT },
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{ "FAT_BITS", OFFS(fat_bits), T_UINT },
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{ "MODE", OFFS(mode), T_UINT },
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{ "TRACKS", OFFS(tracks), T_UINT },
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{ "CYLINDERS", OFFS(tracks), T_UINT },
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{ "HEADS", OFFS(heads), T_UINT },
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{ "SECTORS", OFFS(sectors), T_UINT },
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{ "HIDDEN", OFFS(hidden), T_UINT },
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{ "PRECMD", OFFS(precmd), T_STRING },
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{ "BLOCKSIZE", OFFS(blocksize), T_UINT }
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};
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static void syntax(const char *msg, int thisLine)
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{
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char *drive=NULL;
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if(thisLine)
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lastTokenLinenumber = linenumber;
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if(cur_dev >= 0)
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drive = devices[cur_dev].drive;
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fprintf(stderr,"Syntax error at line %d ", lastTokenLinenumber);
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if(drive) fprintf(stderr, "for drive %s: ", drive);
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if(token) fprintf(stderr, "column %ld ", (long)(token - buffer));
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fprintf(stderr, "in file %s: %s\n", filename, msg);
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exit(1);
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}
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static void get_env_conf(void)
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{
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char *s;
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int i;
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for(i=0; i< sizeof(switches) / sizeof(*switches); i++) {
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s = getenv(switches[i].name);
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if(s) {
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if(switches[i].type == T_INT)
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* ((int *)switches[i].address) = (int) strtol(s,0,0);
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if(switches[i].type == T_UINT)
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* ((int *)switches[i].address) = (unsigned int) strtoul(s,0,0);
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else if (switches[i].type == T_STRING)
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* ((char **)switches[i].address) = s;
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}
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}
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}
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static int mtools_getline(void)
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{
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if(!fgets(buffer, MAX_LINE_LEN, fp))
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return -1;
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linenumber++;
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pos = buffer;
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token_nr = 0;
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buffer[MAX_LINE_LEN] = '\0';
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if(strlen(buffer) == MAX_LINE_LEN)
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syntax("line too long", 1);
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return 0;
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}
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static void skip_junk(int expect)
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{
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lastTokenLinenumber = linenumber;
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while(!pos || !*pos || strchr(" #\n\t", *pos)) {
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if(!pos || !*pos || *pos == '#') {
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if(mtools_getline()) {
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pos = 0;
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if(expect)
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syntax("end of file unexpected", 1);
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return;
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}
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} else
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pos++;
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}
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token_nr++;
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}
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/* get the next token */
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static char *get_next_token(void)
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{
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skip_junk(0);
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if(!pos) {
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token_length = 0;
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token = 0;
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return 0;
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}
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token = pos;
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token_length = strcspn(token, " \t\n#:=");
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pos += token_length;
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return token;
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}
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static int match_token(const char *template)
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{
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return (strlen(template) == token_length &&
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!strncasecmp(template, token, token_length));
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}
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static void expect_char(char c)
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{
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char buf[11];
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skip_junk(1);
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if(*pos != c) {
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sprintf(buf, "expected %c", c);
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syntax(buf, 1);
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}
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pos++;
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}
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static char *get_string(void)
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{
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char *end, *str;
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skip_junk(1);
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if(*pos != '"')
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syntax(" \" expected", 0);
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str = pos+1;
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end = strchr(str, '\"');
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if(!end)
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syntax("unterminated string constant", 1);
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*end = '\0';
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pos = end+1;
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return str;
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}
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static unsigned int get_unumber(void)
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{
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char *last;
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unsigned int n;
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skip_junk(1);
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last = pos;
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n=(unsigned int) strtoul(pos, &pos, 0);
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if(last == pos)
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syntax("numeral expected", 0);
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pos++;
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token_nr++;
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return n;
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}
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static unsigned int get_number(void)
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{
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char *last;
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int n;
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skip_junk(1);
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last = pos;
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n=(int) strtol(pos, &pos, 0);
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if(last == pos)
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syntax("numeral expected", 0);
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pos++;
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token_nr++;
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return n;
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}
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/* purge all entries pertaining to a given drive from the table */
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static void purge(char drive, int fn)
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{
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int i,j;
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drive = toupper(drive);
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for(j=0, i=0; i < cur_devs; i++) {
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if(devices[i].drive[0] != drive ||
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devices[i].drive[1] != 0 ||
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devices[i].file_nr == fn)
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devices[j++] = devices[i];
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}
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cur_devs = j;
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}
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static void grow(void)
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{
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if(cur_devs >= nr_dev - 2) {
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nr_dev = (cur_devs + 2) << 1;
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if(!(devices=Grow(devices, nr_dev, struct device))){
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printOom();
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exit(1);
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}
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}
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}
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static void init_drive(void)
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{
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memset((char *)&devices[cur_dev], 0, sizeof(struct device));
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devices[cur_dev].ssize = 2;
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}
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/* prepends a device to the table */
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static void prepend(void)
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{
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int i;
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grow();
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for(i=cur_devs; i>0; i--)
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devices[i] = devices[i-1];
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cur_dev = 0;
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cur_devs++;
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init_drive();
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}
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/* appends a device to the table */
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static void append(void)
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{
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grow();
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cur_dev = cur_devs;
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cur_devs++;
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init_drive();
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}
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static void finish_drive_clause(void)
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{
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char *drive;
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if(cur_dev == -1) {
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trusted = 0;
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return;
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}
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drive = devices[cur_dev].drive;
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if(!devices[cur_dev].name)
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syntax("missing filename", 0);
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if(devices[cur_dev].tracks ||
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devices[cur_dev].heads ||
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devices[cur_dev].sectors) {
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if(!devices[cur_dev].tracks ||
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!devices[cur_dev].heads ||
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!devices[cur_dev].sectors)
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syntax("incomplete geometry: either indicate all of track/heads/sectors or none of them", 0);
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if(!(devices[cur_dev].misc_flags &
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(MFORMAT_ONLY_FLAG | FILTER_FLAG)))
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syntax("if you supply a geometry, you also must supply one of the `mformat_only' or `filter' flags", 0);
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}
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devices[cur_dev].file_nr = file_nr;
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devices[cur_dev].cfg_filename = filename;
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if(! (flag_mask & PRIV_FLAG) && IS_SCSI(&devices[cur_dev]))
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devices[cur_dev].misc_flags |= PRIV_FLAG;
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if(!trusted && (devices[cur_dev].misc_flags & PRIV_FLAG)) {
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fprintf(stderr,
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"Warning: privileged flag ignored for drive %s: defined in file %s\n",
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devices[cur_dev].drive, filename);
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devices[cur_dev].misc_flags &= ~PRIV_FLAG;
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}
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trusted = 0;
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cur_dev = -1;
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}
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static int set_var(struct switches_l *switches, int nr,
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caddr_t base_address)
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{
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int i;
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for(i=0; i < nr; i++) {
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if(match_token(switches[i].name)) {
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expect_char('=');
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if(switches[i].type == T_UINT)
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* ((int *)((long)switches[i].address+base_address)) =
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get_unumber();
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if(switches[i].type == T_INT)
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* ((int *)((long)switches[i].address+base_address)) =
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get_number();
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else if (switches[i].type == T_STRING)
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* ((char**)((long)switches[i].address+base_address))=
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strdup(get_string());
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return 0;
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}
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}
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return 1;
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}
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static int set_openflags(struct device *dev)
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{
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int i;
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for(i=0; i < sizeof(openflags) / sizeof(*openflags); i++) {
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if(match_token(openflags[i].name)) {
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dev->mode |= openflags[i].flag;
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return 0;
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}
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}
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return 1;
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}
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static int set_misc_flags(struct device *dev)
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{
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int i;
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for(i=0; i < sizeof(misc_flags) / sizeof(*misc_flags); i++) {
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if(match_token(misc_flags[i].name)) {
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flag_mask |= misc_flags[i].flag;
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skip_junk(0);
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if(pos && *pos == '=') {
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pos++;
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switch(get_number()) {
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case 0:
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return 0;
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case 1:
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break;
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default:
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syntax("expected 0 or 1", 0);
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}
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}
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dev->misc_flags |= misc_flags[i].flag;
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return 0;
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}
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}
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return 1;
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}
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static int set_def_format(struct device *dev)
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{
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int i;
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for(i=0; i < sizeof(default_formats)/sizeof(*default_formats); i++) {
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if(match_token(default_formats[i].name)) {
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if(!dev->ssize)
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dev->ssize = 2;
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if(!dev->tracks)
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dev->tracks = default_formats[i].tracks;
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if(!dev->heads)
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dev->heads = default_formats[i].heads;
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if(!dev->sectors)
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dev->sectors = default_formats[i].sectors;
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if(!dev->fat_bits)
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dev->fat_bits = default_formats[i].fat_bits;
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return 0;
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}
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}
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return 1;
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}
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static void get_codepage(void)
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{
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int i;
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unsigned short n;
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if(!Codepage)
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Codepage = New(Codepage_t);
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for(i=0; i<128; i++) {
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n = get_number();
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if(n > 0xff)
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n = 0x5f;
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Codepage->tounix[i] = n;
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}
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}
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static void get_toupper(void)
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{
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int i;
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if(!mstoupper)
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mstoupper = safe_malloc(128);
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for(i=0; i<128; i++)
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mstoupper[i] = get_number();
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}
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static void parse_old_device_line(char drive)
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{
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char name[MAXPATHLEN];
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int items;
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long offset;
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char newdrive;
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/* finish any old drive */
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finish_drive_clause();
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/* purge out data of old configuration files */
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purge(drive, file_nr);
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/* reserve slot */
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append();
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items = sscanf(token,"%c %s %i %i %i %i %li",
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&newdrive,name,&devices[cur_dev].fat_bits,
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&devices[cur_dev].tracks,&devices[cur_dev].heads,
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&devices[cur_dev].sectors, &offset);
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devices[cur_dev].offset = (off_t) offset;
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switch(items){
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case 2:
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devices[cur_dev].fat_bits = 0;
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/* fall thru */
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case 3:
|
|
devices[cur_dev].sectors = 0;
|
|
devices[cur_dev].heads = 0;
|
|
devices[cur_dev].tracks = 0;
|
|
/* fall thru */
|
|
case 6:
|
|
devices[cur_dev].offset = 0;
|
|
/* fall thru */
|
|
default:
|
|
break;
|
|
case 0:
|
|
case 1:
|
|
case 4:
|
|
case 5:
|
|
syntax("bad number of parameters", 1);
|
|
exit(1);
|
|
}
|
|
if(!devices[cur_dev].tracks){
|
|
devices[cur_dev].sectors = 0;
|
|
devices[cur_dev].heads = 0;
|
|
}
|
|
|
|
devices[cur_dev].drive = letters[toupper(newdrive) - 'A'];
|
|
if (!(devices[cur_dev].name = strdup(name))) {
|
|
printOom();
|
|
exit(1);
|
|
}
|
|
finish_drive_clause();
|
|
pos=0;
|
|
}
|
|
|
|
static int parse_one(int privilege)
|
|
{
|
|
int action=0;
|
|
|
|
get_next_token();
|
|
if(!token)
|
|
return 0;
|
|
|
|
if((match_token("drive") && ((action = 1)))||
|
|
(match_token("drive+") && ((action = 2))) ||
|
|
(match_token("+drive") && ((action = 3))) ||
|
|
(match_token("clear_drive") && ((action = 4))) ) {
|
|
/* finish off the previous drive */
|
|
finish_drive_clause();
|
|
|
|
get_next_token();
|
|
if(token_length != 1)
|
|
syntax("drive letter expected", 0);
|
|
|
|
if(action==1 || action==4)
|
|
/* replace existing drive */
|
|
purge(token[0], file_nr);
|
|
if(action==4)
|
|
return 1;
|
|
if(action==3)
|
|
prepend();
|
|
else
|
|
append();
|
|
memset((char*)(devices+cur_dev), 0, sizeof(*devices));
|
|
trusted = privilege;
|
|
flag_mask = 0;
|
|
devices[cur_dev].drive = letters[toupper(token[0]) - 'A'];
|
|
expect_char(':');
|
|
return 1;
|
|
}
|
|
if(token_nr == 1 && token_length == 1) {
|
|
parse_old_device_line(token[0]);
|
|
return 1;
|
|
}
|
|
if(match_token("default_fucase")) {
|
|
free(mstoupper);
|
|
mstoupper=0;
|
|
}
|
|
if(match_token("default_tounix")) {
|
|
Free(Codepage);
|
|
Codepage = 0;
|
|
}
|
|
if(match_token("fucase")) {
|
|
expect_char(':');
|
|
get_toupper();
|
|
return 1;
|
|
}
|
|
if(match_token("tounix")) {
|
|
expect_char(':');
|
|
get_codepage();
|
|
return 1;
|
|
}
|
|
|
|
if((cur_dev < 0 ||
|
|
(set_var(dswitches,
|
|
sizeof(dswitches)/sizeof(*dswitches),
|
|
(caddr_t)&devices[cur_dev]) &&
|
|
set_openflags(&devices[cur_dev]) &&
|
|
set_misc_flags(&devices[cur_dev]) &&
|
|
set_def_format(&devices[cur_dev]))) &&
|
|
set_var(switches,
|
|
sizeof(switches)/sizeof(*switches), 0))
|
|
syntax("unrecognized keyword", 1);
|
|
return 1;
|
|
}
|
|
|
|
static int parse(const char *name, int privilege)
|
|
{
|
|
fp = fopen(name, "r");
|
|
if(!fp)
|
|
return 0;
|
|
file_nr++;
|
|
filename = strdup(name);
|
|
linenumber = 0;
|
|
lastTokenLinenumber = 0;
|
|
pos = 0;
|
|
token = 0;
|
|
cur_dev = -1; /* no current device */
|
|
|
|
while(parse_one(privilege));
|
|
finish_drive_clause();
|
|
fclose(fp);
|
|
return 1;
|
|
}
|
|
|
|
void read_config(void)
|
|
{
|
|
char *homedir;
|
|
char *envConfFile;
|
|
char conf_file[MAXPATHLEN+sizeof(CFG_FILE1)];
|
|
|
|
|
|
/* copy compiled-in devices */
|
|
file_nr = 0;
|
|
cur_devs = nr_const_devices;
|
|
nr_dev = nr_const_devices + 2;
|
|
devices = NewArray(nr_dev, struct device);
|
|
if(!devices) {
|
|
printOom();
|
|
exit(1);
|
|
}
|
|
if(nr_const_devices)
|
|
memcpy(devices, const_devices,
|
|
nr_const_devices*sizeof(struct device));
|
|
|
|
(void) ((parse(CONF_FILE,1) |
|
|
parse(LOCAL_CONF_FILE,1) |
|
|
parse(SYS_CONF_FILE,1)) ||
|
|
(parse(OLD_CONF_FILE,1) |
|
|
parse(OLD_LOCAL_CONF_FILE,1)));
|
|
/* the old-name configuration files only get executed if none of the
|
|
* new-name config files were used */
|
|
|
|
homedir = get_homedir();
|
|
if ( homedir ){
|
|
strncpy(conf_file, homedir, MAXPATHLEN );
|
|
conf_file[MAXPATHLEN]='\0';
|
|
strcat( conf_file, CFG_FILE1);
|
|
parse(conf_file,0);
|
|
}
|
|
memset((char *)&devices[cur_devs],0,sizeof(struct device));
|
|
|
|
envConfFile = getenv("MTOOLSRC");
|
|
if(envConfFile)
|
|
parse(envConfFile,0);
|
|
|
|
/* environmental variables */
|
|
get_env_conf();
|
|
if(mtools_skip_check)
|
|
mtools_fat_compatibility=1;
|
|
init_codepage();
|
|
}
|
|
|
|
void mtoolstest(int argc, char **argv, int type)
|
|
{
|
|
/* testing purposes only */
|
|
struct device *dev;
|
|
int i,j;
|
|
char *drive=NULL;
|
|
char *path;
|
|
|
|
if (argc > 1 && (path = skip_drive(argv[1])) > argv[1]) {
|
|
drive = get_drive(argv[1], NULL);
|
|
}
|
|
|
|
for (dev=devices; dev->name; dev++) {
|
|
if(drive && strcmp(drive, dev->drive) != 0)
|
|
continue;
|
|
printf("drive %s:\n", dev->drive);
|
|
printf("\t#fn=%d mode=%d ",
|
|
dev->file_nr, dev->mode);
|
|
if(dev->cfg_filename)
|
|
printf("defined in %s\n", dev->cfg_filename);
|
|
else
|
|
printf("builtin\n");
|
|
printf("\tfile=\"%s\" fat_bits=%d \n",
|
|
dev->name,dev->fat_bits);
|
|
printf("\ttracks=%d heads=%d sectors=%d hidden=%d\n",
|
|
dev->tracks, dev->heads, dev->sectors, dev->hidden);
|
|
printf("\toffset=0x%lx\n", (long) dev->offset);
|
|
printf("\tpartition=%d\n", dev->partition);
|
|
|
|
if(dev->misc_flags)
|
|
printf("\t");
|
|
|
|
if(IS_SCSI(dev))
|
|
printf("scsi ");
|
|
if(IS_PRIVILEGED(dev))
|
|
printf("privileged");
|
|
if(IS_MFORMAT_ONLY(dev))
|
|
printf("mformat_only ");
|
|
if(SHOULD_USE_VOLD(dev))
|
|
printf("vold ");
|
|
#ifdef USE_XDF
|
|
if(SHOULD_USE_XDF(dev))
|
|
printf("use_xdf ");
|
|
#endif
|
|
if(dev->misc_flags)
|
|
printf("\n");
|
|
|
|
if(dev->mode)
|
|
printf("\t");
|
|
#ifdef O_SYNC
|
|
if(dev->mode & O_SYNC)
|
|
printf("sync ");
|
|
#endif
|
|
#ifdef O_NDELAY
|
|
if((dev->mode & O_NDELAY))
|
|
printf("nodelay ");
|
|
#endif
|
|
#ifdef O_EXCL
|
|
if((dev->mode & O_EXCL))
|
|
printf("exclusive ");
|
|
#endif
|
|
if(dev->mode)
|
|
printf("\n");
|
|
|
|
if(dev->precmd)
|
|
printf("\tprecmd=%s\n", dev->precmd);
|
|
|
|
printf("\n");
|
|
}
|
|
|
|
printf("tounix:\n");
|
|
for(i=0; i < 16; i++) {
|
|
putchar('\t');
|
|
for(j=0; j<8; j++)
|
|
printf("0x%02x ",
|
|
(unsigned char)Codepage->tounix[i*8+j]);
|
|
putchar('\n');
|
|
}
|
|
printf("\nfucase:\n");
|
|
for(i=0; i < 16; i++) {
|
|
putchar('\t');
|
|
for(j=0; j<8; j++)
|
|
printf("0x%02x ",
|
|
(unsigned char)mstoupper[i*8+j]);
|
|
putchar('\n');
|
|
}
|
|
if(country_string)
|
|
printf("COUNTRY=%s\n", country_string);
|
|
printf("mtools_fat_compatibility=%d\n",mtools_fat_compatibility);
|
|
printf("mtools_skip_check=%d\n",mtools_skip_check);
|
|
printf("mtools_lower_case=%d\n",mtools_ignore_short_case);
|
|
|
|
exit(0);
|
|
}
|
|
|
|
#else /* NO_CONFIG */
|
|
|
|
void read_config(void)
|
|
{
|
|
/* only compiled-in devices */
|
|
devices = NewArray(nr_const_devices + 1, struct device);
|
|
if(!devices) {
|
|
fprintf(stderr,"Out of memory error\n");
|
|
exit(1);
|
|
}
|
|
if(nr_const_devices)
|
|
memcpy(devices, const_devices,
|
|
nr_const_devices*sizeof(struct device));
|
|
}
|
|
|
|
#endif /* NO_CONFIG */
|