Note about proxy authentication and SOCKS.

[rsync.git] / syscall.c

diff --git a/syscall.c b/syscall.c
index d92cb314a59e9e72a70346b2186746ff10668fef..dbac7dc92d3b2c41f659db92c14235594f48bc5f 100644 (file)
--- a/syscall.c
+++ b/syscall.c
@@ -23,39 +23,174 @@
 #include "rsync.h"
 
 extern int dry_run;
+extern int read_only;
+extern int list_only;
+
+#define CHECK_RO if (read_only || list_only) {errno = EROFS; return -1;}
 
 int do_unlink(char *fname)
 {
        if (dry_run) return 0;
+       CHECK_RO
        return unlink(fname);
 }
 
 int do_symlink(char *fname1, char *fname2)
 {
        if (dry_run) return 0;
+       CHECK_RO
        return symlink(fname1, fname2);
 }
 
+#if HAVE_LINK
 int do_link(char *fname1, char *fname2)
 {
        if (dry_run) return 0;
+       CHECK_RO
        return link(fname1, fname2);
 }
+#endif
+
+int do_lchown(const char *path, uid_t owner, gid_t group)
+{
+       if (dry_run) return 0;
+       CHECK_RO
+       return lchown(path, owner, group);
+}
 
+#if HAVE_MKNOD
 int do_mknod(char *pathname, mode_t mode, dev_t dev)
 {
        if (dry_run) return 0;
+       CHECK_RO
        return mknod(pathname, mode, dev);
 }
+#endif
 
 int do_rmdir(char *pathname)
 {
        if (dry_run) return 0;
+       CHECK_RO
        return rmdir(pathname);
 }
 
 int do_open(char *pathname, int flags, mode_t mode)
 {
-       if (dry_run) return -1;
+       if (flags != O_RDONLY) {
+           if (dry_run) return -1;
+           CHECK_RO
+       }
+#ifdef O_BINARY
+       /* for Windows */
+       flags |= O_BINARY;
+#endif
+       /* some systems can't handle a double / */
+       if (pathname[0] == '/' && pathname[1] == '/') pathname++;
+
        return open(pathname, flags, mode);
 }
+
+#if HAVE_CHMOD
+int do_chmod(const char *path, mode_t mode)
+{
+       if (dry_run) return 0;
+       CHECK_RO
+       return chmod(path, mode);
+}
+#endif
+
+int do_rename(char *fname1, char *fname2)
+{
+       if (dry_run) return 0;
+       CHECK_RO
+       return rename(fname1, fname2);
+}
+
+int do_mkdir(char *fname, mode_t mode)
+{
+       if (dry_run) return 0;
+       CHECK_RO
+       return mkdir(fname, mode);
+}
+
+/* like mkstemp but forces permissions */
+int do_mkstemp(char *template, mode_t perms)
+{
+       if (dry_run) return -1;
+       if (read_only) {errno = EROFS; return -1;}
+
+#if defined(HAVE_SECURE_MKSTEMP) && defined(HAVE_FCHMOD)
+       {
+               int fd = mkstemp(template);
+               if (fd == -1) return -1;
+               if (fchmod(fd, perms) != 0) {
+                       close(fd);
+                       unlink(template);
+                       return -1;
+               }
+               return fd;
+       }
+#else
+       if (!mktemp(template)) return -1;
+       return do_open(template, O_RDWR|O_EXCL|O_CREAT, perms);
+#endif
+}
+
+int do_stat(const char *fname, STRUCT_STAT *st)
+{
+#if HAVE_OFF64_T
+       return stat64(fname, st);
+#else
+       return stat(fname, st);
+#endif
+}
+
+#if SUPPORT_LINKS
+int do_lstat(const char *fname, STRUCT_STAT *st)
+{
+#if HAVE_OFF64_T
+       return lstat64(fname, st);
+#else
+       return lstat(fname, st);
+#endif
+}
+#endif
+
+int do_fstat(int fd, STRUCT_STAT *st)
+{
+#if HAVE_OFF64_T
+       return fstat64(fd, st);
+#else
+       return fstat(fd, st);
+#endif
+}
+
+OFF_T do_lseek(int fd, OFF_T offset, int whence)
+{
+#if HAVE_OFF64_T
+       off64_t lseek64();
+       return lseek64(fd, offset, whence);
+#else
+       return lseek(fd, offset, whence);
+#endif
+}
+
+#ifdef USE_MMAP
+void *do_mmap(void *start, int len, int prot, int flags, int fd, OFF_T offset)
+{
+#if HAVE_OFF64_T
+       return mmap64(start, len, prot, flags, fd, offset);
+#else
+       return mmap(start, len, prot, flags, fd, offset);
+#endif
+}
+#endif
+
+char *d_name(struct dirent *di)
+{
+#if HAVE_BROKEN_READDIR
+       return (di->d_name - 2);
+#else
+       return di->d_name;
+#endif
+}