diff options
Diffstat (limited to 'libbb/read.c')
| -rw-r--r-- | libbb/read.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/libbb/read.c b/libbb/read.c index 4ad41d5..5754465 100644 --- a/libbb/read.c +++ b/libbb/read.c @@ -88,8 +88,14 @@ ssize_t full_read(int fd, void *buf, size_t len) while (len) { cc = safe_read(fd, buf, len); - if (cc < 0) - return cc; /* read() returns -1 on failure. */ + if (cc < 0) { + if (total) { + /* we already have some! */ + /* user can do another read to know the error code */ + return total; + } + return cc; /* read() returns -1 on failure. */ + } if (cc == 0) break; buf = ((char *)buf) + cc; |