Call wildmatch(), not fnmatch().

[rsync/rsync.git] / authenticate.c

diff --git a/authenticate.c b/authenticate.c
index 896366a..ef4f6af 100644 (file)
--- a/authenticate.c
+++ b/authenticate.c
@@ -1,5 +1,6 @@
-/* 
-   Copyright (C) Andrew Tridgell 1998
+/* -*- c-file-style: "linux"; -*-
+   
+   Copyright (C) 1998-2000 by Andrew Tridgell 
    
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -56,7 +57,7 @@ static void gen_challenge(char *addr, char *challenge)
        memset(input, 0, sizeof(input));
 
        strlcpy((char *)input, addr, 17);
-       gettimeofday(&tv, NULL);
+       sys_gettimeofday(&tv);
        SIVAL(input, 16, tv.tv_sec);
        SIVAL(input, 20, tv.tv_usec);
        SIVAL(input, 24, getpid());
@@ -85,14 +86,16 @@ static int get_secret(int module, char *user, char *secret, int len)
        if (fd == -1) return 0;
 
        if (do_stat(fname, &st) == -1) {
-               rprintf(FERROR,"stat(%s) : %s\n", fname, strerror(errno));
-               ok = 0;
-       } else if ((st.st_mode & 06) != 0) {
-               rprintf(FERROR,"secrets file must not be other-accessible\n");
-               ok = 0;
-       } else if (am_root && (st.st_uid != 0)) {
-               rprintf(FERROR,"secrets file must be owned by root when running as root\n");
+               rsyserr(FERROR, errno, "stat(%s)", fname);
                ok = 0;
+       } else if (lp_strict_modes(module)) {
+               if ((st.st_mode & 06) != 0) {
+                       rprintf(FERROR,"secrets file must not be other-accessible (see strict modes option)\n");
+                       ok = 0;
+               } else if (am_root && (st.st_uid != 0)) {
+                       rprintf(FERROR,"secrets file must be owned by root when running as root (see strict modes)\n");
+                       ok = 0;
+               }
        }
        if (!ok) {
                rprintf(FERROR,"continuing without secrets file\n");
@@ -102,8 +105,8 @@ static int get_secret(int module, char *user, char *secret, int len)
 
        while (!found) {
                int i = 0;
-               memset(line, 0, sizeof(line));
-               while (i<(sizeof(line)-1)) {
+               memset(line, 0, sizeof line);
+               while ((size_t) i < (sizeof(line)-1)) {
                        if (read(fd, &line[i], 1) != 1) {
                                memset(line, 0, sizeof(line));
                                close(fd);
@@ -133,7 +136,6 @@ static int get_secret(int module, char *user, char *secret, int len)
 static char *getpassf(char *filename)
 {
        char buffer[100];
-       int len=0;
        int fd=0;
        STRUCT_STAT st;
        int ok = 1;
@@ -143,13 +145,13 @@ static char *getpassf(char *filename)
        if (!filename) return NULL;
 
        if ( (fd=open(filename,O_RDONLY)) == -1) {
-               rprintf(FERROR,"could not open password file \"%s\"\n",filename);
+               rsyserr(FERROR, errno, "could not open password file \"%s\"",filename);
                if (envpw) rprintf(FERROR,"falling back to RSYNC_PASSWORD environment variable.\n");    
                return NULL;
        }
        
        if (do_stat(filename, &st) == -1) {
-               rprintf(FERROR,"stat(%s) : %s\n", filename, strerror(errno));
+               rsyserr(FERROR, errno, "stat(%s)", filename);
                ok = 0;
        } else if ((st.st_mode & 06) != 0) {
                rprintf(FERROR,"password file must not be other-accessible\n");
@@ -168,10 +170,12 @@ static char *getpassf(char *filename)
        if (envpw) rprintf(FERROR,"RSYNC_PASSWORD environment variable ignored\n");
 
        buffer[sizeof(buffer)-1]='\0';
-       if ( (len=read(fd,buffer,sizeof(buffer)-1)) > 0)
+       if (read(fd,buffer,sizeof(buffer)-1) > 0)
        {
+               char *p = strtok(buffer,"\n\r");
                close(fd);
-               return strdup(strtok(buffer,"\n\r"));
+               if (p) p = strdup(p);
+               return p;
        }       
 
        return NULL;
@@ -199,7 +203,7 @@ static void generate_hash(char *in, char *challenge, char *out)
 
    otherwise return username
 */
-char *auth_server(int fd, int module, char *addr, char *leader)
+char *auth_server(int f_in, int f_out, int module, char *addr, char *leader)
 {
        char *users = lp_auth_users(module);
        char challenge[16];
@@ -218,9 +222,9 @@ char *auth_server(int fd, int module, char *addr, char *leader)
        
        base64_encode(challenge, 16, b64_challenge);
 
-       io_printf(fd,"%s%s\n", leader, b64_challenge);
+       io_printf(f_out, "%s%s\n", leader, b64_challenge);
 
-       if (!read_line(fd, line, sizeof(line)-1)) {
+       if (!read_line(f_in, line, sizeof(line)-1)) {
                return NULL;
        }
 
@@ -230,12 +234,12 @@ char *auth_server(int fd, int module, char *addr, char *leader)
        if (sscanf(line,"%99s %29s", user, pass) != 2) {
                return NULL;
        }
-
+       
        users = strdup(users);
        if (!users) return NULL;
 
        for (tok=strtok(users," ,\t"); tok; tok = strtok(NULL," ,\t")) {
-               if (strcmp(tok, user) == 0) break;
+               if (wildmatch(tok, user)) break;
        }
        free(users);
 
@@ -268,6 +272,15 @@ void auth_client(int fd, char *user, char *challenge)
        if (!user || !*user) return;
 
        if (!(pass=getpassf(password_file)) && !(pass=getenv("RSYNC_PASSWORD"))) {
+               /* XXX: cyeoh says that getpass is deprecated, because
+                * it may return a truncated password on some systems,
+                * and it is not in the LSB.
+                 *
+                 * Andrew Klein says that getpassphrase() is present
+                 * on Solaris and reads up to 256 characters.
+                 *
+                 * OpenBSD has a readpassphrase() that might be more suitable.
+                 */
                pass = getpass("Password: ");
        }