Copy files until EOF, not the reported file size, to deal with bad sizes in

the proc filesystem.

1 files changed, 4 insertions, 3 deletions

diff --git a/libbb/copy_file.c b/libbb/copy_file.c
index 22684be74..24bdf9002 100644
--- a/libbb/copy_file.c
+++ b/libbb/copy_file.c
@@ -94,7 +94,7 @@ int copy_file(const char *source, const char *dest, int flags)
 
                         umask(saved_umask);
                 }
-                
+
                 /* Recursively copy files in SOURCE.  */
                 if ((dp = opendir(source)) == NULL) {
                         perror_msg("unable to open directory `%s'", source);
@@ -116,7 +116,7 @@ int copy_file(const char *source, const char *dest, int flags)
                         free(new_source);
                         free(new_dest);
                 }
-                
+
                 /* ??? What if an error occurs in readdir?  */
 
                 if (closedir(dp) < 0) {
@@ -173,7 +173,8 @@ int copy_file(const char *source, const char *dest, int flags)
                         goto end;
                 }
 
-                copy_file_chunk(sfp, dfp, source_stat.st_size);
+                if (copy_file_chunk(sfp, dfp, -1) < 0)
+                        status = -1;
 
                 if (fclose(dfp) < 0) {
                         perror_msg("unable to close `%s'", dest);