110 lines
4.4 KiB
C
110 lines
4.4 KiB
C
#include <sys/types.h>
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#include <sys/dir.h>
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char *strncpy();
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#ifdef MAXNAMLEN /* 4.2 BSD */
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#define FNAMELEN MAXNAMLEN
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#else
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#define FNAMELEN DIRSIZ
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#endif
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/* Create a Unix file name based on the Mac filename. First off we have
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* possible problems with filename sizes (Sys V) and also with allowable
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* characters. Mac filename characters can be anything from 1 to 254 (I
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* think 0 and 255 are not allowed) with colon disallowed. Unix filenames
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* have also a lot of freedom, but cannot contain 0 or '/'. Also on Unix
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* non-printable are a trouble (you will never see the filename correctly;
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* and it may even lock your terminal with some versions of Unix).
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* So first off non-printable characters are mapped to underscore.
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* Although there are Unix systems that allow the high order bit set in
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* a filename character in all programs, nearly all implementations do not
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* allow that, so also characters in the range 0200-0377 are mapped to
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* underscore (except as noted below). Some people would also like to
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* remap characters that are special to some shells (open brackets,
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* asterisks, exclamation point (csh), etc.) I did elect not to do so
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* because there is no end. (The previous code disallowed a lot, but not
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* the braces that are special to some shells, obviously he was a C-shell user!)
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* Characters in the range 0200-0377 are in part accented letters
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* (the Swedes, Norwegians and Danes would not agree, but who listens to
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* them!); those are mapped to the unaccented version. All other characters
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* in this range are mapped to underscore. Note: this is based on the
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* Geneva font!
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* This stuff is now largely table driven.
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* One day I may modify this so that an environment variable may be used
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* to define mappings. */
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static char char_mapping[] = {
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'_', '_', '_', '_', '_', '_', '_', '_',
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'_', '_', '_', '_', '_', '_', '_', '_',
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'_', '_', '_', '_', '_', '_', '_', '_',
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'_', '_', '_', '_', '_', '_', '_', '_',
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'_', '!', '"', '#', '$', '%', '&', '\'',
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'(', ')', '*', '+', ',', '-', '.', '_',
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'0', '1', '2', '3', '4', '5', '6', '7',
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'8', '9', ':', ';', '<', '=', '>', '?',
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'@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
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'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
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'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
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'X', 'Y', 'Z', '[', '\\', ']', '^', '_',
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'`', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
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'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
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'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
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'x', 'y', 'z', '{', '|', '}', '~', '_',
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#ifndef LATIN1
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'A', 'A', 'C', 'E', 'N', 'O', 'U', 'a',
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'a', 'a', 'a', 'a', 'a', 'c', 'e', 'e',
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'e', 'e', 'i', 'i', 'i', 'i', 'n', 'o',
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'o', 'o', 'o', 'o', 'u', 'u', 'u', 'u',
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'_', '_', '_', '_', '_', '_', '_', '_',
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'_', '_', '_', '_', '_', '_', '_', 'O',
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'_', '_', '_', '_', '_', '_', '_', '_',
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'_', '_', '_', '_', '_', '_', '_', 'o',
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'_', '_', '_', '_', '_', '_', '_', '_',
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'_', '_', '_', 'A', 'A', 'O', '_', '_',
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'_', '_', '_', '_', '_', '_', '_', '_',
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'y', '_', '_', '_', '_', '_', '_', '_',
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#else /* LATIN1 */
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0304, 0305, 0307, 0311, 0321, 0326, 0334, 0341,
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0340, 0342, 0344, 0343, 0345, 0347, 0351, 0350,
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0352, 0353, 0355, 0354, 0356, 0357, 0361, 0363,
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0362, 0364, 0366, 0365, 0372, 0371, 0373, 0374,
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'_', 0260, 0242, 0243, 0247, 0267, 0266, 0337,
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0256, 0251, '_', 0264, 0250, '_', 0306, 0330,
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'_', 0261, '_', '_', 0245, '_', '_', '_',
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'_', '_', '_', '_', '_', '_', 0346, 0370,
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0277, 0241, 0254, '_', '_', '_', '_', 0253,
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0273, '_', '_', 0300, 0303, 0325, '_', '_',
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'_', '_', '_', '_', '_', '_', 0367, 0244,
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0377, '_', '_', '_', '_', '_', '_', '_',
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#endif /* LATIN1 */
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'_', '_', '_', '_', '_', '_', '_', '_',
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'_', '_', '_', '_', '_', '_', '_', '_',
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'_', '_', '_', '_', '_', '_', '_', '_',
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'_', '_', '_', '_', '_', '_', '_', '_'};
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void transname(name, namebuf, n)
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char *name, *namebuf;
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int n;
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{
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char *np;
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/* make sure host file name doesn't get truncated beyond recognition */
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if (n > FNAMELEN - 2) {
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n = FNAMELEN - 2;
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}
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(void)strncpy(namebuf, name, n);
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namebuf[n] = '\0';
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/* now: translate name */
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for (np = namebuf; *np; np++){
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*np = char_mapping[*np & 0xff];
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}
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#ifdef NODOT
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if(*namebuf == '.') {
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*namebuf = '_';
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}
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#endif /* NODOT */
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}
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