Initial import of very much rewritten TCFS userland. This code is still

nasty.

1 files changed, 101 insertions, 0 deletions

diff --git a/usr.bin/tcfs/tcfs_getfspath.c b/usr.bin/tcfs/tcfs_getfspath.c
new file mode 100644
index 00000000000..0774fa95adb
--- /dev/null
+++ b/usr.bin/tcfs/tcfs_getfspath.c
@@ -0,0 +1,101 @@
+/*	$OpenBSD: tcfs_getfspath.c,v 1.1 2000/06/18 22:07:24 provos Exp $	*/
+/*
+ *	Transparent Cryptographic File System (TCFS) for NetBSD 
+ *	Author and mantainer: 	Luigi Catuogno [luicat@tcfs.unisa.it]
+ *	
+ *	references:		http://tcfs.dia.unisa.it
+ *				tcfs-bsd@tcfs.unisa.it
+ */
+
+/*
+ *	Base utility set v0.1
+ */
+
+#include <stdio.h>
+#include <strings.h>
+#include <stdlib.h>
+#include <fstab.h>
+
+#define WHITESPACE " \t\r\n"
+
+int
+tcfs_label_getcipher (char *label)
+{
+	int ciphernum;
+
+	if (tcfs_get_label (label, NULL, &ciphernum))
+	  return ciphernum;
+
+        return (-1);
+}
+
+int
+tcfs_getfspath (char *label2search, char *path)
+{
+	return tcfs_get_label (label2search, path, NULL);
+}
+
+int
+tcfs_get_label(char *label2search, char *path, int *ciphernumber)
+{
+	FILE *fp;
+	char *label, *line, *p, *tag, *mountpoint, *cipherfield;
+	int found = 0;
+
+	if ((fp = fopen(_PATH_FSTAB,"r")) == NULL)
+		return (0);
+
+	if ((line = calloc(1024, sizeof(char))) == NULL)
+		goto out;
+
+	while (!feof(fp) && !found) {
+		p = line;
+		fgets (p, 1024, fp);
+		p = p + strspn(p, WHITESPACE);
+		while (!found) {
+			strsep(&p, WHITESPACE);  /* device */
+			if (p == NULL)
+				break;
+			p = p + strspn(p, WHITESPACE);
+			mountpoint = strsep(&p, WHITESPACE); /* mount point */
+			if (p == NULL)
+				break;
+			tag = strsep(&p, WHITESPACE); /* file system */
+			if (p == NULL || strcmp(tag, "tcfs"))
+				break;
+
+			/* find the correct label */
+			label = strstr(p, "label=");
+			cipherfield = strstr(p, "cipher=");
+			if (label == NULL)
+				break;
+			p = label + 6;
+			label = strsep(&p, WHITESPACE ",");
+			if (!strlen(label) || strcmp(label, label2search))
+				break;
+
+			if (path) {
+				strcpy(path, mountpoint);
+				found = 1;
+			}
+			
+			if (ciphernumber) {
+				if (cipherfield == NULL)
+					break;
+				p = cipherfield + 7;
+				cipherfield = strsep(&p, WHITESPACE ",");
+				if (!strlen(cipherfield))
+					break;
+
+				*ciphernumber = strtol(cipherfield, &p, 0);
+				if (cipherfield != p) 
+					found = 1;
+			}
+		}
+	}
+	free(line);
+ out:
+	fclose (fp);
+
+	return found;
+}