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Alternative name mangle experiment

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This commit is contained in:
Michiel Broek 2002-11-23 22:43:47 +00:00
parent b1ac22bf97
commit d728493cff
1 changed files with 15 additions and 7 deletions
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22
lib/mangle.c
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@ -54,9 +54,7 @@ int is_8_3(char *);
/* -------------------------------------------------------------------------- ** /* -------------------------------------------------------------------------- **
* Other stuff... * Other stuff...
* *
* magic_char - This is the magic char used for mangling. It's * magic_char - This is the magic char used for mangling. It's global.
* global. There is a call to lp_magicchar() in server.c
* that is used to override the initial value.
* *
* MANGLE_BASE - This is the number of characters we use for name mangling. * MANGLE_BASE - This is the number of characters we use for name mangling.
* *
@ -136,6 +134,7 @@ int str_checksum(const char *s)
s++; s++;
i++; i++;
} }
// Syslog('f', "str_cksum(%s) %d", s, res);
return res; return res;
} }
@ -348,7 +347,7 @@ int is_8_3( char *fname)
*/ */
void mangle_name_83(char *s) void mangle_name_83(char *s)
{ {
int csum, i; int csum, crc16, i;
char *p, *q; char *p, *q;
char extension[4]; char extension[4];
char base[9]; char base[9];
@ -406,11 +405,17 @@ void mangle_name_83(char *s)
if (all_normal && p[1] != 0) { if (all_normal && p[1] != 0) {
*p = 0; *p = 0;
csum = str_checksum(s); csum = str_checksum(s);
crc16 = crc16xmodem(s, strlen(s));
*p = '.'; *p = '.';
} else } else {
csum = str_checksum(s); csum = str_checksum(s);
} else crc16 = crc16xmodem(s, strlen(s));
}
} else {
csum = str_checksum(s); csum = str_checksum(s);
crc16 = crc16xmodem(s, strlen(s));
}
// Syslog('f', "crc16xmodem(%s) %d", s, crc16);
tu(s); tu(s);
@ -438,8 +443,11 @@ void mangle_name_83(char *s)
base[baselen] = 0; base[baselen] = 0;
csum = csum % (MANGLE_BASE * MANGLE_BASE); csum = csum % (MANGLE_BASE * MANGLE_BASE);
crc16 = crc16 % (MANGLE_BASE * MANGLE_BASE);
sprintf(s, "%s%c%c%c", base, magic_char, mangle(csum / MANGLE_BASE), mangle(csum)); sprintf(s, "%s%c%c%c", base, magic_char, mangle(csum / MANGLE_BASE), mangle(csum));
Syslog('f', "csum %4d mangle old %c%c%c crc16 %4d mangle new %c%c%c",
csum, magic_char, mangle(csum / MANGLE_BASE), mangle(csum),
crc16, magic_char, mangle(crc16 / MANGLE_BASE), mangle(crc16));
if( *extension ) { if( *extension ) {
(void)strcat(s, "."); (void)strcat(s, ".");
(void)strcat(s, extension); (void)strcat(s, extension);