Initial revision

git-svn-id: http://opensvn.csie.org/pttbbs/pttbbs/trunk/pttbbs@1 63ad8ddf-47c3-0310-b6dd-a9e9d9715204

1 files changed, 77 insertions, 0 deletions

diff --git a/util/tunepasswd.c b/util/tunepasswd.c
new file mode 100644
index 00000000..15a3fe1f
--- /dev/null
+++ b/util/tunepasswd.c
@@ -0,0 +1,77 @@
+/* $Id: tunepasswd.c,v 1.1 2002/03/07 15:13:46 in2 Exp $ */
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/file.h>
+#include "config.h"
+#include "pttstruct.h"
+#include "common.h"
+
+int tune(int num) {
+    int i, j, fin, fout;
+    userec_t u;
+    
+    if((fin = open(FN_PASSWD, O_RDONLY)) == -1) {
+	perror(FN_PASSWD);
+	return 1;
+    }
+    if(flock(fin, LOCK_EX)) {
+	printf("Lock failed!\n");
+	return 1;
+    }
+    if((fout = open(FN_PASSWD ".tune" , O_WRONLY | O_CREAT, 0600)) == -1) {
+	perror(FN_PASSWD ".tune");
+	flock(fin, LOCK_UN);
+	close(fin);
+	return 1;
+    }
+    
+    for(i = j = 0; i < num; i++) {
+	read(fin, &u, sizeof(u));
+	if(u.userid[0]) {
+	    if(j == MAX_USERS) {
+		printf("MAX_USERS is too small!\n");
+		close(fout);
+		unlink(FN_PASSWD ".tune");
+		flock(fin, LOCK_UN);
+		close(fin);
+		return 1;
+	    }
+	    write(fout, &u, sizeof(u));
+	    j++;
+	}
+    }
+    for(memset(&u, 0, sizeof(u)); j < MAX_USERS; j++) {
+	write(fout, &u, sizeof(u));
+    }
+    close(fout);
+    
+    /* backup */
+    unlink(FN_PASSWD "~");
+    link(FN_PASSWD, FN_PASSWD "~");
+    unlink(FN_PASSWD);
+    link(FN_PASSWD ".tune", FN_PASSWD);
+    unlink(FN_PASSWD ".tune");
+    
+    flock(fin, LOCK_UN);
+    close(fin);
+    return 0;
+}
+
+int main() {
+    struct stat sb;
+    
+    if(stat(FN_PASSWD, &sb)) {
+	perror("stat");
+	return 1;
+    }
+    if(sb.st_size != sizeof(userec_t) * MAX_USERS) {
+	printf("size and MAX_USERS do not match!\n");
+	if(tune(sb.st_size / sizeof(userec_t)) == 0)
+	    printf(FN_PASSWD " has been tuned successfully!\n");
+    } else
+	printf("Nothing to do.\n");
+    return 0;
+}