diff options
author | NingSun <ning.sun@intel.com> | 2018-02-28 18:24:31 -0800 |
---|---|---|
committer | NingSun <ning.sun@intel.com> | 2018-03-01 10:28:45 -0800 |
commit | 535535b7c5f2781fa096a5fd00a762d24db4eddc (patch) | |
tree | 57a75d6dc0f01677a9da21715f3a3a4d11cf3298 /TPM2-Plugin/lib/log.c | |
parent | 0c89b3ccba7c9b7332ab67ae1936aff51ca62367 (diff) |
Setup TPM2-Plugin build environment
Add initial codes to build TPM2-plugin shared lib
Issue-ID: AAF-94
Change-Id: I96dee3699aa250b69350d6f01401f3831cf515f7
Signed-off-by: NingSun <ning.sun@intel.com>
Diffstat (limited to 'TPM2-Plugin/lib/log.c')
-rw-r--r-- | TPM2-Plugin/lib/log.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/TPM2-Plugin/lib/log.c b/TPM2-Plugin/lib/log.c new file mode 100644 index 0000000..14797e4 --- /dev/null +++ b/TPM2-Plugin/lib/log.c @@ -0,0 +1,93 @@ +//**********************************************************************; +// Copyright (c) 2017, Intel Corporation +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are met: +// +// 1. Redistributions of source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. +// +// 2. Redistributions in binary form must reproduce the above copyright notice, +// this list of conditions and the following disclaimer in the documentation +// and/or other materials provided with the distribution. +// +// 3. Neither the name of Intel Corporation nor the names of its contributors +// may be used to endorse or promote products derived from this software without +// specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE +// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF +// THE POSSIBILITY OF SUCH DAMAGE. +//**********************************************************************; +#include <stdarg.h> +#include <stdbool.h> +#include <stdio.h> + +#include "log.h" + +/* + * Note that the logging library is not thread safe, thus calls on separate + * threads will yield an interleaved output on stderr. + */ + +static log_level current_log_level = log_level_warning; + +void +log_set_level (log_level value) +{ + current_log_level = value; +} + +static const char * +get_level_msg (log_level level) +{ + const char *value = "UNK"; + switch (level) + { + case log_level_error: + value = "ERROR"; + break; + case log_level_warning: + value = "WARN"; + break; + case log_level_verbose: + value = "INFO"; + } + return value; +} + +void +_log (log_level level, const char *file, unsigned lineno, const char *fmt, ...) +{ + + /* Skip printing messages outside of the log level */ + if (level > current_log_level) + return; + + va_list argptr; + va_start(argptr, fmt); + + /* Verbose output prints file and line on error */ + if (current_log_level >= log_level_verbose) + fprintf (stderr, "%s on line: \"%u\" in file: \"%s\": ", + get_level_msg (level), lineno, file); + else + fprintf (stderr, "%s: ", get_level_msg (level)); + + /* Print the user supplied message */ + vfprintf (stderr, fmt, argptr); + + /* always add a new line so the user doesn't have to */ + fprintf (stderr, "\n"); + + va_end(argptr); +} |