tail: sizeof(buf) is sizeof(char*)! must be BUFSIZ

diff --git a/coreutils/tail.c b/coreutils/tail.c
index 8a112346d23a3abb048eebf9e4d919a0b1c25052..53dbf33ac22bbd5596b5141fffa9d2d6e42d71a4 100644 (file)
--- a/coreutils/tail.c
+++ b/coreutils/tail.c
@@ -57,7 +57,7 @@ static ssize_t tail_read(int fd, char *buf, size_t count)
                if (sbuf.st_size < current)
                        lseek(fd, 0, SEEK_SET);
 
-       r = safe_read(fd, buf, count);
+       r = full_read(fd, buf, count);
        if (r < 0) {
                bb_perror_msg(bb_msg_read_error);
                G.status = EXIT_FAILURE;
@@ -271,7 +271,7 @@ int tail_main(int argc, char **argv)
                        if (nfiles > header_threshhold) {
                                fmt = header_fmt;
                        }
-                       while ((nread = tail_read(fds[i], buf, sizeof(buf))) > 0) {
+                       while ((nread = tail_read(fds[i], buf, BUFSIZ)) > 0) {
                                if (fmt) {
                                        tail_xprint_header(fmt, argv[i]);
                                        fmt = NULL;