Date: Thu, 04 Dec 1997 15:28:35 +0900 From: Shigio Yamaguchi <shigio@wafu.netgate.net> To: hackers@freebsd.org Cc: shigio@wafu.netgate.net Subject: [RFC] path converting functions. Message-ID: <199712032230.WAA28837@wafu.netgate.net>
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Hello, hackers.
I've written a set of simple functions to perform conversions between
an absolute path name and a relative path name.
Thoughts about this?
o Are there any other functions that will do this?
o Is this useful?
o Is this the correct way to do it?
------------------------------------------------------------------------
abs2rel - make a relative path name from an absolute path name
abs2rel(<original path name>, <base directory>, <result>);
<original path name> <base directory> <result>
/usr/src /etc ../usr/src
rel2abs - make an absolute path name from a relative path name
rel2abs(<original path name>, <base directory>, <result>);
<original path name> <base directory> <result>
../usr/src /etc /usr/src
EXAMPLE:
char result[MAXPATHLEN];
char result2[MAXPATHLEN];
char *base = "/usr/local/src";
if (abs2rel("/usr/src/sys/kern/init_main.c", base, result))
printf("%s\n", result);
else
fprintf(stderr, "abs2rel failed. (errno = %d)\n", errno);
if (rel2abs(result, base, result2))
printf("%s\n", result2);
else
fprintf(stderr, "rel2abs failed. (errno = %d)\n", errno);
yields:
../../src/sys/kern/init_main.c
/usr/src/sys/kern/init_main.c
------------------------------------------------------------------------
abs2rel and rel2abs (source code and online manual) are available on
http://wafu.netgate.net/tama/indexe.html#pathconvertc
Thank you in advance.
--
Shigio Yamaguchi (Freelance programmer)
Mail: shigio@wafu.netgate.net, WWW: http://wafu.netgate.net/tama/
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