Import sources from 2011-03-30 iso image

1 files changed, 38 insertions, 0 deletions

diff --git a/sys/src/ape/cmd/dirname.c b/sys/src/ape/cmd/dirname.c
new file mode 100755
index 000000000..207a96c71
--- /dev/null
+++ b/sys/src/ape/cmd/dirname.c
@@ -0,0 +1,38 @@
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+main(int argc, char **argv)
+{
+	char *f, *s;
+	int n;
+
+	if(argc != 2){
+		fprintf(stderr, "Usage: dirname string\n");
+		exit(1);
+	}
+	s = argv[1];
+	f = s + strlen(s) - 1;
+	while(f > s && *f == '/')
+		f--;
+	*++f = 0;
+	/* now f is after last char of string, trailing slashes removed */
+
+	for(; f >= s; f--)
+		if(*f == '/'){
+			f++;
+			break;
+		}
+	if(f < s) {
+		*s = '.';
+		s[1] = 0;
+	} else {
+		--f;
+		while(f > s && *f == '/')
+			f--;
+		f[1] = 0;
+	}
+
+	printf("%s\n", s);
+	return 0;
+}