diff options
| author | Olaf Buddenhagen <antrik@users.sf.net> | 2010-07-18 02:33:40 +0200 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2010-08-01 19:14:50 +0200 |
| commit | f57d72dee53c79d5d527336bfbd9455c5262e963 (patch) | |
| tree | b5adff4329423ae7c5ae83cc0d45a52165b1abc1 /pfinet | |
| parent | c39ede0f06da0e49db48ff3a1641dc135c8ca18e (diff) | |
pfinet: check return value of mmap() in S_io_read() and S_socket_recv()
* pfinet/io-ops.c (S_io_read): Check return value.
* pfinet/socket-ops.c (S_socket_recv): Likewise.
Diffstat (limited to 'pfinet')
| -rw-r--r-- | pfinet/io-ops.c | 5 | ||||
| -rw-r--r-- | pfinet/socket-ops.c | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/pfinet/io-ops.c b/pfinet/io-ops.c index bee1c19a..ef8d8513 100644 --- a/pfinet/io-ops.c +++ b/pfinet/io-ops.c @@ -87,6 +87,11 @@ S_io_read (struct sock_user *user, if (amount > *datalen) { *data = mmap (0, amount, PROT_READ|PROT_WRITE, MAP_ANON, 0, 0); + if (*data == MAP_FAILED) + /* Should check whether errno is indeed ENOMEM -- + but this can't be done in a straightforward way, + because the glue headers #undef errno. */ + return ENOMEM; alloced = 1; } diff --git a/pfinet/socket-ops.c b/pfinet/socket-ops.c index baeaad30..b9ce6c72 100644 --- a/pfinet/socket-ops.c +++ b/pfinet/socket-ops.c @@ -499,6 +499,11 @@ S_socket_recv (struct sock_user *user, if (amount > *datalen) { *data = mmap (0, amount, PROT_READ|PROT_WRITE, MAP_ANON, 0, 0); + if (*data == MAP_FAILED) + /* Should check whether errno is indeed ENOMEM -- + but this can't be done in a straightforward way, + because the glue headers #undef errno. */ + return ENOMEM; alloced = 1; } |