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-rw-r--r--src/lib9/cleanname.c78
1 files changed, 0 insertions, 78 deletions
diff --git a/src/lib9/cleanname.c b/src/lib9/cleanname.c
deleted file mode 100644
index fee40388f..000000000
--- a/src/lib9/cleanname.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
-Inferno libkern/cleanname.c
-http://code.google.com/p/inferno-os/source/browse/libkern/cleanname.c
-
- Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
- Revisions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com). All rights reserved.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-
-#include <u.h>
-#include <libc.h>
-
-/*
- * In place, rewrite name to compress multiple /, eliminate ., and process ..
- */
-#define SEP(x) ((x)=='/' || (x) == 0)
-char*
-cleanname(char *name)
-{
- char *p, *q, *dotdot;
- int rooted;
-
- rooted = name[0] == '/';
-
- /*
- * invariants:
- * p points at beginning of path element we're considering.
- * q points just past the last path element we wrote (no slash).
- * dotdot points just past the point where .. cannot backtrack
- * any further (no slash).
- */
- p = q = dotdot = name+rooted;
- while(*p) {
- if(p[0] == '/') /* null element */
- p++;
- else if(p[0] == '.' && SEP(p[1]))
- p += 1; /* don't count the separator in case it is nul */
- else if(p[0] == '.' && p[1] == '.' && SEP(p[2])) {
- p += 2;
- if(q > dotdot) { /* can backtrack */
- while(--q > dotdot && *q != '/')
- ;
- } else if(!rooted) { /* /.. is / but ./../ is .. */
- if(q != name)
- *q++ = '/';
- *q++ = '.';
- *q++ = '.';
- dotdot = q;
- }
- } else { /* real path element */
- if(q != name+rooted)
- *q++ = '/';
- while((*q = *p) != '/' && *q != 0)
- p++, q++;
- }
- }
- if(q == name) /* empty string is really ``.'' */
- *q++ = '.';
- *q = '\0';
- return name;
-}