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Coverity CID 1194: Negative returns (from Arnaud Lacombe)

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This commit is contained in:
christos 2006-09-29 14:18:25 +00:00
parent ebd0b89ad0
commit b7ae68fde0
5 changed files with 18 additions and 5 deletions
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7
regress/sys/kern/kqueue/read/fifo/fifo.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: fifo.c,v 1.2 2002/10/29 10:39:36 martin Exp $ */ /* $NetBSD: fifo.c,v 1.3 2006/09/29 14:18:25 christos Exp $ */
/*- /*-
* Copyright (c) 2002 The NetBSD Foundation, Inc. * Copyright (c) 2002 The NetBSD Foundation, Inc.
@ -115,6 +115,11 @@ main(int argc, char **argv)
printf("fifo: incorrect filter, expecting EVFILT_READ\n"); printf("fifo: incorrect filter, expecting EVFILT_READ\n");
n = read(fd, buffer, event[0].data); n = read(fd, buffer, event[0].data);
if (n < 0) {
warn("read");
error = 1;
goto out;
}
buffer[n] = '\0'; buffer[n] = '\0';
printf("fifo: read '%s'\n", buffer); printf("fifo: read '%s'\n", buffer);

4
regress/sys/kern/kqueue/read/file/file.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: file.c,v 1.3 2002/12/06 02:06:16 thorpej Exp $ */ /* $NetBSD: file.c,v 1.4 2006/09/29 14:18:25 christos Exp $ */
/*- /*-
* Copyright (c) 2002 The NetBSD Foundation, Inc. * Copyright (c) 2002 The NetBSD Foundation, Inc.
@ -104,6 +104,8 @@ main(int argc, char **argv)
#endif #endif
n = read(fd, buffer, 128); n = read(fd, buffer, 128);
if (n < 0)
err(1, "read");
buffer[n] = '\0'; buffer[n] = '\0';
printf("file(%d): %s", num, buffer); printf("file(%d): %s", num, buffer);
} }

4
regress/sys/kern/kqueue/read/pipe1/pipe1.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pipe1.c,v 1.1.1.1 2002/10/03 07:46:03 jdolecek Exp $ */ /* $NetBSD: pipe1.c,v 1.2 2006/09/29 14:18:25 christos Exp $ */
/*- /*-
* Copyright (c) 2002 The NetBSD Foundation, Inc. * Copyright (c) 2002 The NetBSD Foundation, Inc.
@ -82,6 +82,8 @@ main(int argc, char **argv)
n, event[0].flags, event[0].fflags, event[0].data); n, event[0].flags, event[0].fflags, event[0].data);
n = read(fds[0], buffer, event[0].data); n = read(fds[0], buffer, event[0].data);
if (n < 0)
err(1, "read");
buffer[n] = '\0'; buffer[n] = '\0';
printf("pipe: read '%s'\n", buffer); printf("pipe: read '%s'\n", buffer);

4
regress/sys/kern/kqueue/vnode/vnode.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: vnode.c,v 1.2 2003/10/21 09:42:48 itojun Exp $ */ /* $NetBSD: vnode.c,v 1.3 2006/09/29 14:18:25 christos Exp $ */
/*- /*-
* Copyright (c) 2002 The NetBSD Foundation, Inc. * Copyright (c) 2002 The NetBSD Foundation, Inc.
@ -139,6 +139,8 @@ main(int argc, char **argv)
if (event[0].data < 0) if (event[0].data < 0)
lseek(fd, 0, SEEK_END); lseek(fd, 0, SEEK_END);
n = read(fd, buffer, 128); n = read(fd, buffer, 128);
if (n < 0)
err(1, "read");
buffer[n] = '\0'; buffer[n] = '\0';
printf("[%d] %s", n, buffer); printf("[%d] %s", n, buffer);
} }

4
regress/sys/kern/kqueue/write/inet/inet.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: inet.c,v 1.6 2006/05/10 19:10:09 mrg Exp $ */ /* $NetBSD: inet.c,v 1.7 2006/09/29 14:18:25 christos Exp $ */
/*- /*-
* Copyright (c) 2002 The NetBSD Foundation, Inc. * Copyright (c) 2002 The NetBSD Foundation, Inc.
@ -273,6 +273,8 @@ printf("ir: match is %d\n", match); /* sleep(1); */
continue; continue;
n = read(fd, buffer, 128); n = read(fd, buffer, 128);
if (n < 0)
err(1, "read");
buffer[n] = '\0'; buffer[n] = '\0';
buffer[0] = '\0'; buffer[0] = '\0';
printf("[%d] %s", n, buffer); printf("[%d] %s", n, buffer);