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Fedora 28: Fix misc bounds check compiler warnings

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Fix a bunch of (mostly) sprintf/snprintf truncation compiler
warnings that show up on Fedora 28 (GCC 8.0.1).

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #7361
Closes #7368
This commit is contained in:
Tony Hutter
2018-04-04 10:16:47 -07:00
parent fd01167ffd
commit f5ecab3aef
10 changed files with 80 additions and 39 deletions
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cmd/zpios/zpios_main.c
+5 -4
View File
@@ -525,10 +525,11 @@ run_one(cmd_args_t *args, uint32_t id, uint32_t T, uint32_t N,
memset(cmd, 0, cmd_size);
cmd->cmd_magic = ZPIOS_CMD_MAGIC;
strncpy(cmd->cmd_pool, args->pool, ZPIOS_NAME_SIZE - 1);
strncpy(cmd->cmd_pre, args->pre, ZPIOS_PATH_SIZE - 1);
strncpy(cmd->cmd_post, args->post, ZPIOS_PATH_SIZE - 1);
strncpy(cmd->cmd_log, args->log, ZPIOS_PATH_SIZE - 1);
snprintf(cmd->cmd_pool, sizeof (cmd->cmd_pool), "%s", args->pool);
snprintf(cmd->cmd_pre, sizeof (cmd->cmd_pre), "%s", args->pre);
snprintf(cmd->cmd_post, sizeof (cmd->cmd_post), "%s", args->post);
snprintf(cmd->cmd_log, sizeof (cmd->cmd_log), "%s", args->log);
cmd->cmd_id = id;
cmd->cmd_chunk_size = C;
cmd->cmd_thread_count = T;
cmd/zvol_id/zvol_id_main.c
+10 -5
View File
@@ -55,11 +55,12 @@ main(int argc, char **argv)
{
int fd, error = 0;
char zvol_name[ZFS_MAX_DATASET_NAME_LEN];
char zvol_name_part[ZFS_MAX_DATASET_NAME_LEN];
char *zvol_name_part = NULL;
char *dev_name;
struct stat64 statbuf;
int dev_minor, dev_part;
int i;
int rc;
if (argc < 2) {
printf("Usage: %s /dev/zvol_device_node\n", argv[0]);
@@ -88,11 +89,13 @@ main(int argc, char **argv)
return (errno);
}
if (dev_part > 0)
snprintf(zvol_name_part, ZFS_MAX_DATASET_NAME_LEN,
"%s-part%d", zvol_name, dev_part);
rc = asprintf(&zvol_name_part, "%s-part%d", zvol_name,
dev_part);
else
snprintf(zvol_name_part, ZFS_MAX_DATASET_NAME_LEN,
"%s", zvol_name);
rc = asprintf(&zvol_name_part, "%s", zvol_name);
if (rc == -1 || zvol_name_part == NULL)
goto error;
for (i = 0; i < strlen(zvol_name_part); i++) {
if (isblank(zvol_name_part[i]))
@@ -100,6 +103,8 @@ main(int argc, char **argv)
}
printf("%s\n", zvol_name_part);
free(zvol_name_part);
error:
close(fd);
return (error);
}