From b2a6e25067a41def7d5795df6d07231b55051ab2 Mon Sep 17 00:00:00 2001 From: Dave Barach Date: Wed, 27 Jul 2016 10:00:58 -0400 Subject: VPP-189 coverity warning cleanups Change-Id: Ia4fbf4352119504e022b89d10d44a5259d94f316 Signed-off-by: Dave Barach --- vlib/vlib/node.c | 7 +++++-- vlib/vlib/threads.c | 10 ++++++++-- vlib/vlib/threads_cli.c | 4 ++-- vlib/vlib/unix/cli.c | 10 ++++++++-- vlib/vlib/unix/main.c | 5 +++-- vlib/vlib/unix/mc_socket.c | 5 ++++- vlib/vlib/unix/util.c | 8 +++++--- 7 files changed, 35 insertions(+), 14 deletions(-) (limited to 'vlib') diff --git a/vlib/vlib/node.c b/vlib/vlib/node.c index 838f34199bd..3d26559a03d 100644 --- a/vlib/vlib/node.c +++ b/vlib/vlib/node.c @@ -486,8 +486,11 @@ vlib_node_main_init (vlib_main_t * vm) sib = vlib_get_node_by_name (vm, (u8 *) n->sibling_of); if (!sib) - clib_error ("sibling `%s' not found for node `%v'", n->sibling_of, - n->name); + { + error = clib_error_create ("sibling `%s' not found for node `%v'", + n->sibling_of, n->name); + goto done; + } /* *INDENT-OFF* */ clib_bitmap_foreach (si, sib->sibling_bitmap, ({ diff --git a/vlib/vlib/threads.c b/vlib/vlib/threads.c index 47db218dc0e..72f340ea205 100644 --- a/vlib/vlib/threads.c +++ b/vlib/vlib/threads.c @@ -81,10 +81,15 @@ void vlib_set_thread_name (char *name) { int pthread_setname_np (pthread_t __target_thread, const char *__name); + int rv; pthread_t thread = pthread_self (); if (thread) - pthread_setname_np (thread, name); + { + rv = pthread_setname_np (thread, name); + if (rv) + clib_warning ("pthread_setname_np returned %d", rv); + } } static int @@ -114,7 +119,8 @@ vlib_sysfs_list_to_bitmap (char *filename) unformat_input_t in; unformat_init_string (&in, (char *) buffer, strlen ((char *) buffer)); - unformat (&in, "%U", unformat_bitmap_list, &r); + if (unformat (&in, "%U", unformat_bitmap_list, &r) != 1) + clib_warning ("unformat_bitmap_list failed"); unformat_free (&in); } vec_free (buffer); diff --git a/vlib/vlib/threads_cli.c b/vlib/vlib/threads_cli.c index 919baac5640..9ab4edcd357 100644 --- a/vlib/vlib/threads_cli.c +++ b/vlib/vlib/threads_cli.c @@ -321,8 +321,8 @@ test_frame_queue_nelts (vlib_main_t * vm, unformat_input_t * input, u32 fqix; u32 nelts = 0; - unformat (input, "%d", &nelts); - if ((nelts != 4) && (nelts != 8) && (nelts != 16) && (nelts != 32)) + if ((unformat (input, "%d", &nelts) != 1) || + ((nelts != 4) && (nelts != 8) && (nelts != 16) && (nelts != 32))) { return clib_error_return (0, "expecting 4,8,16,32"); } diff --git a/vlib/vlib/unix/cli.c b/vlib/vlib/unix/cli.c index e36b80ad990..7d5e10b8b8e 100644 --- a/vlib/vlib/unix/cli.c +++ b/vlib/vlib/unix/cli.c @@ -2345,7 +2345,13 @@ unix_cli_resize_interrupt (int signum) (void) signum; /* Terminal resized, fetch the new size */ - ioctl (UNIX_CLI_STDIN_FD, TIOCGWINSZ, &ws); + if (ioctl (UNIX_CLI_STDIN_FD, TIOCGWINSZ, &ws) < 0) + { + /* "Should never happen..." */ + clib_unix_warning ("TIOCGWINSZ"); + /* We can't trust ws.XXX... */ + return; + } cf->width = ws.ws_col; cf->height = ws.ws_row; @@ -2380,7 +2386,7 @@ unix_cli_config (vlib_main_t * vm, unformat_input_t * input) /* Set stdin to be non-blocking. */ if ((flags = fcntl (UNIX_CLI_STDIN_FD, F_GETFL, 0)) < 0) flags = 0; - fcntl (UNIX_CLI_STDIN_FD, F_SETFL, flags | O_NONBLOCK); + (void) fcntl (UNIX_CLI_STDIN_FD, F_SETFL, flags | O_NONBLOCK); cf_index = unix_cli_file_add (cm, "stdin", UNIX_CLI_STDIN_FD); cf = pool_elt_at_index (cm->cli_file_pool, cf_index); diff --git a/vlib/vlib/unix/main.c b/vlib/vlib/unix/main.c index b8753f4df93..3c17031b884 100644 --- a/vlib/vlib/unix/main.c +++ b/vlib/vlib/unix/main.c @@ -89,6 +89,7 @@ unix_signal_handler (int signum, siginfo_t * si, ucontext_t * uc) clib_longjmp (&unix_main.vlib_main->main_loop_exit, VLIB_MAIN_LOOP_EXIT_CLI); } + /* fall through */ case SIGQUIT: case SIGINT: case SIGILL: @@ -344,7 +345,7 @@ unix_config (vlib_main_t * vm, unformat_input_t * input) int fd; fd = open ("/proc/self/coredump_filter", O_WRONLY); - if (fd > 0) + if (fd >= 0) { if (write (fd, "0x6f\n", 5) != 5) clib_unix_warning ("coredump filter write failed!"); @@ -468,7 +469,7 @@ vlib_unix_main (int argc, char *argv[]) /* allocate N x 1mb stacks, aligned e.g. to a 16mb boundary */ thread_stacks = clib_mem_alloc_aligned - (tm->n_thread_stacks * VLIB_THREAD_STACK_SIZE, + ((uword) tm->n_thread_stacks * VLIB_THREAD_STACK_SIZE, (VLIB_MAX_CPUS << VLIB_LOG2_THREAD_STACK_SIZE)); sm->vm_base = thread_stacks; diff --git a/vlib/vlib/unix/mc_socket.c b/vlib/vlib/unix/mc_socket.c index 2077fd7c519..2754b302875 100644 --- a/vlib/vlib/unix/mc_socket.c +++ b/vlib/vlib/unix/mc_socket.c @@ -955,7 +955,10 @@ find_interface_ip4_address (char *if_name, u32 * ip4_address, u32 * mtu) clib_memcpy (ip4_address, &sa->sin_addr.s_addr, sizeof (ip4_address[0])); if (ioctl (fd, SIOCGIFMTU, &ifr) < 0) - return -1; + { + close (fd); + return -1; + } if (mtu) *mtu = ifr.ifr_mtu - ( /* IP4 header */ 20 + /* UDP header */ 8); diff --git a/vlib/vlib/unix/util.c b/vlib/vlib/unix/util.c index f4a2c810dfc..9118f5b5283 100644 --- a/vlib/vlib/unix/util.c +++ b/vlib/vlib/unix/util.c @@ -103,6 +103,7 @@ vlib_sysfs_write (char *file_name, char *fmt, ...) { u8 *s; int fd; + clib_error_t * error = 0; fd = open (file_name, O_WRONLY); if (fd < 0) @@ -114,11 +115,11 @@ vlib_sysfs_write (char *file_name, char *fmt, ...) va_end (va); if (write (fd, s, vec_len (s)) < 0) - return clib_error_return_unix (0, "write `%s'", file_name); + error = clib_error_return_unix (0, "write `%s'", file_name); vec_free (s); close (fd); - return 0; + return error; } clib_error_t * @@ -181,7 +182,8 @@ vlib_sysfs_link_to_name (char *link) return 0; unformat_init_string (&in, p + 1, strlen (p + 1)); - unformat (&in, "%s", &s); + if (unformat (&in, "%s", &s) != 1) + clib_unix_warning ("no string?"); unformat_free (&in); return s; -- cgit 1.2.3-korg