diff options
| author | Guy Harris <guy@alum.mit.edu> | 1999-10-05 07:06:08 +0000 |
|---|---|---|
| committer | Guy Harris <guy@alum.mit.edu> | 1999-10-05 07:06:08 +0000 |
| commit | 5f7868c7e039265d585f79952d1cd1867ab5cf1e (patch) | |
| tree | fc21365a3ed0d03130e733c2c10a8abe4aa946a2 /wiretap/libpcap.c | |
| parent | 03b75d6279db74fd3fd175cb572ea9340e452b65 (diff) | |
Better handle errors from zlib:
Assign a range of Wiretap errors for zlib errors, and have
"wtap_strerror()" use "zError()" to get an error message for
them.
Have the internal "file_error()" routine return 0 for no error
and a Wiretap error code for an error.
svn path=/trunk/; revision=769
Diffstat (limited to 'wiretap/libpcap.c')
| -rw-r--r-- | wiretap/libpcap.c | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/wiretap/libpcap.c b/wiretap/libpcap.c index 2f22d78154..f4dfc19d35 100644 --- a/wiretap/libpcap.c +++ b/wiretap/libpcap.c @@ -1,6 +1,6 @@ /* libpcap.c * - * $Id: libpcap.c,v 1.20 1999/09/24 05:49:51 guy Exp $ + * $Id: libpcap.c,v 1.21 1999/10/05 07:06:06 guy Exp $ * * Wiretap Library * Copyright (c) 1998 by Gilbert Ramirez <gram@verdict.uthscsa.edu> @@ -152,10 +152,9 @@ int libpcap_open(wtap *wth, int *err) errno = WTAP_ERR_CANT_READ; bytes_read = file_read(&magic, 1, sizeof magic, wth->fh); if (bytes_read != sizeof magic) { - if (file_error(wth->fh)) { - *err = errno; + *err = file_error(wth->fh); + if (*err != 0) return -1; - } return 0; } wth->data_offset += sizeof magic; @@ -173,10 +172,9 @@ int libpcap_open(wtap *wth, int *err) errno = WTAP_ERR_CANT_READ; bytes_read = file_read(&hdr, 1, sizeof hdr, wth->fh); if (bytes_read != sizeof hdr) { - if (file_error(wth->fh)) { - *err = errno; + *err = file_error(wth->fh); + if (*err != 0) return -1; - } return 0; } wth->data_offset += sizeof hdr; @@ -227,10 +225,9 @@ static int libpcap_read(wtap *wth, int *err) errno = WTAP_ERR_CANT_READ; bytes_read = file_read(&hdr, 1, sizeof hdr, wth->fh); if (bytes_read != sizeof hdr) { - if (file_error(wth->fh)) { - *err = errno; + *err = file_error(wth->fh); + if (*err != 0) return -1; - } if (bytes_read != 0) { *err = WTAP_ERR_SHORT_READ; return -1; @@ -285,9 +282,8 @@ static int libpcap_read(wtap *wth, int *err) packet_size, wth->fh); if (bytes_read != packet_size) { - if (file_error(wth->fh)) - *err = errno; - else + *err = file_error(wth->fh); + if (*err == 0) *err = WTAP_ERR_SHORT_READ; return -1; } |