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libgen: basename and dirname [PATCH]
- From: Shaun Jackman <sjackman at gmail dot com>
- To: newlib at sources dot redhat dot com
- Date: Wed, 6 Apr 2005 16:06:05 -0700
- Subject: libgen: basename and dirname [PATCH]
- Reply-to: Shaun Jackman <sjackman at gmail dot com>
This patch adds the libgen functions, basename and dirname, to newlib.
Although I'm sure these functions have been implemented a few times
over, this implementation is my own. Sorry I don't have the
documentation headers for these files. I expect they're probably drawn
from some source, and so I'll leave it to the person in the know.
Cheers,
Shaun
2005-04-06 Shaun Jackman <sjackman@gmail.com>
* libc/stdlib/Makefile.am: Add basename.c and dirname.c to GENERAL_SOURCES.
* libc/stdlib/basename.c: New file.
* libc/stdlib/dirname.c: Ditto.
Index: newlib/libc/stdlib/Makefile.am
===================================================================
RCS file: /cvs/src/src/newlib/libc/stdlib/Makefile.am,v
retrieving revision 1.20
diff -u -3 -p -r1.20 Makefile.am
--- newlib/libc/stdlib/Makefile.am 9 Sep 2004 19:46:54 -0000 1.20
+++ newlib/libc/stdlib/Makefile.am 6 Apr 2005 22:56:25 -0000
@@ -19,7 +19,9 @@ GENERAL_SOURCES = \
atoff.c \
atoi.c \
atol.c \
+ basename.c \
calloc.c \
+ dirname.c \
div.c \
dtoa.c \
dtoastub.c \
--- /dev/null 2005-04-04 21:44:30.000000000 -0700
+++ newlib/libc/stdlib/basename.c 2005-04-06 13:30:37.000000000 -0700
@@ -0,0 +1,17 @@
+#include <string.h>
+
+char *basename(char *path)
+{
+ char *p;
+ if( path == NULL || *path == '\0' )
+ return ".";
+ p = path + strlen(path) - 1;
+ while( *p == '/' ) {
+ if( p == path )
+ return path;
+ *p-- = '\0';
+ }
+ while( p >= path && *p != '/' )
+ p--;
+ return p + 1;
+}
--- /dev/null 2005-04-04 21:44:30.000000000 -0700
+++ newlib/libc/stdlib/dirname.c 2005-04-06 13:33:42.000000000 -0700
@@ -0,0 +1,20 @@
+#include <string.h>
+
+char *dirname(char *path)
+{
+ char *p;
+ if( path == NULL || *path == '\0' )
+ return ".";
+ p = path + strlen(path) - 1;
+ while( *p == '/' ) {
+ if( p == path )
+ return path;
+ *p-- = '\0';
+ }
+ while( p >= path && *p != '/' )
+ p--;
+ return
+ p < path ? "." :
+ p == path ? "/" :
+ (*p = '\0', path);
+}