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| author | Ed Schouten <ed@FreeBSD.org> | 2016-08-12 07:03:58 +0000 |
|---|---|---|
| committer | Ed Schouten <ed@FreeBSD.org> | 2016-08-12 07:03:58 +0000 |
| commit | e2f68161004f312bf10e4b683ac866b45f6e8489 (patch) | |
| tree | a50cc6fc0fb7585fae31392699626146ed813198 /lib/libc/gen/Makefile.inc | |
| parent | 791444089f5dd584327e2e79b58e016796f02ad5 (diff) | |
| download | src-e2f68161004f312bf10e4b683ac866b45f6e8489.tar.gz src-e2f68161004f312bf10e4b683ac866b45f6e8489.zip | |
Reimplement dirname(3) to be thread-safe.
Now that we've updated the prototypes of the basename(3) and dirname(3)
functions to conform to POSIX, let's go ahead and reimplement dirname(3)
in such a way that it's thread-safe, but also guaranteed to succeed. C
libraries like glibc, musl and the one that's part of Solaris already
follow such an approach.
Move the existing implementation to another source file,
freebsd11_dirname.c to keep existing users of the API that pass in a
constant string happy, using symbol versioning.
Put a new version of the function in dirname.c, obtained from CloudABI's
C library. This version scans through the pathname string from left to
right, normalizing it, while discarding the last pathname component.
Reviewed by: emaste, jilles
Differential Revision: https://reviews.freebsd.org/D7355
Notes
Notes:
svn path=/head/; revision=303988
Diffstat (limited to 'lib/libc/gen/Makefile.inc')
| -rw-r--r-- | lib/libc/gen/Makefile.inc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/libc/gen/Makefile.inc b/lib/libc/gen/Makefile.inc index 696d907ac609..58f582fb4e73 100644 --- a/lib/libc/gen/Makefile.inc +++ b/lib/libc/gen/Makefile.inc @@ -29,6 +29,7 @@ SRCS+= __getosreldate.c \ devname.c \ dirfd.c \ dirname.c \ + dirname_compat.c \ disklabel.c \ dlfcn.c \ drand48.c \ |