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Diffstat (limited to 'src/config/parameters.c')
| -rw-r--r-- | src/config/parameters.c | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/src/config/parameters.c b/src/config/parameters.c new file mode 100644 index 0000000..308e5db --- /dev/null +++ b/src/config/parameters.c @@ -0,0 +1,287 @@ +/**** POSIX *******************************************************************/ +#include <limits.h> + +/**** RELABSD *****************************************************************/ +#include <relabsd/config.h> +#include <relabsd/debug.h> + +#include <relabsd/device/axis.h> + +#include <relabsd/util/string.h> + +#include <relabsd/config/parameters.h> + +/******************************************************************************/ +/**** LOCAL FUNCTIONS *********************************************************/ +/******************************************************************************/ +static void print_usage (const char exec [const restrict static 1]) +{ + printf + ( + "USAGE: %s [<MODE>] [<OPTION>+]\n\n" + + "<MODE>:\n" + "\t[-c | --client] <server_file>:\n" + "\t\tSends the commands to a given server instance.\n\n" + + "\t[-s | --server] <server_file>:\n" + "\t\tCreates a named server instance.\n\n" + + "\t[-1 | --self]:\n" + "\t\tCreates a unnamed server instance.\n\n" + + "<OPTION>:\n" + "\t[-d | --daemon]:\n" + "\t\tRuns server instance in the background.\n\n" + + "\t[-n | --name] <relabsd_device_name>:\n" + "\t\tNames the virtual device.\n\n" + + "\t[-t | --timeout] <timeout_in_ms>:\n" + "\t\tSets a zeroing timeout (0 to disable).\n\n" + + "\t[-a | --axis] <name> <min> <max> <fuzz> <flat> <resolution> " + "<options>:\n" + "\t\t(Re)defines an axis.\n\n" + + "\t[-f | --config] <config_file>" + "<options>:\n" + "\t\t(Re)defines an axis.\n", + exec + ); +} + +static int parse_axis +( + const int argc, + const char * argv [const restrict static argc], + struct relabsd_axis axes [const restrict static RELABSD_AXIS_AXES_COUNT] +) +{ + enum relabsd_axis_name axis_name; + struct relabsd_axis *axis; + + if (argc < 7) + { + RELABSD_S_FATAL("7 parameters must be provided for axis definition."); + + return -1; + } + + axis_index = relabsd_axis_from_name(argv[0]); + + if (axis_index == RELABSD_UNKNOWN) + { + RELABSD_FATAL("Unknown axis \"%s\".", argv[0]); + + return -1; + } + + axis = (axes + axis_index); + + axis->min = atoi(argv[1]); + axis->max = atoi(argv[2]); + axis->fuzz = atoi(argv[3]); + axis->flat = atoi(argv[4]); + axis->resolution = atoi(argv[5]); + + + return 0; +} + +/******************************************************************************/ +/**** EXPORTED FUNCTIONS ******************************************************/ +/******************************************************************************/ +int relabsd_parameters_parse_execution_mode +( + const int argc, + const char * argv [const restrict static argc], + struct relabsd_parameters params [const restrict static 1] +) +{ + RELABSD_S_DEBUG(RELABSD_DEBUG_PROGRAM_FLOW, "Parsing exec mode..."); + + if (argc < 3) + { + print_usage(argv[0]); + + return -1; + } + + if + ( + RELABSD_STRING_EQUALS("-c", argv[1]) + || RELABSD_STRING_EQUALS("--client", argv[1]) + ) + { + params->mode = RELABSD_PARAMETERS_CLIENT_MODE; + params->node = argv[2]; + params->read_argc = 2; + } + else if + ( + RELABSD_STRING_EQUALS("-s", argv[1]) + || RELABSD_STRING_EQUALS("--server", argv[1]) + ) + { + params->mode = RELABSD_PARAMETERS_CLIENT_MODE; + params->node = argv[2]; + params->read_argc = 2; + } + else if + ( + RELABSD_STRING_EQUALS("-1", argv[1]) + || RELABSD_STRING_EQUALS("--self", argv[1]) + ) + { + params->mode = RELABSD_PARAMETERS_SERVER_MODE; + params->node = (char *) NULL; + params->read_argc = 1; + } + else + { + print_usage(argv[0]); + + return -1; + } + + RELABSD_S_DEBUG(RELABSD_DEBUG_PROGRAM_FLOW, "Parsed exec mode."); + + return 0; +} + +int relabsd_parameters_parse_options +( + const int argc, + const char * argv [const restrict static argc], + struct relabsd_parameters params [const restrict static 1] +) +{ + int i; + + RELABSD_S_DEBUG(RELABSD_DEBUG_PROGRAM_FLOW, "Parsing options..."); + + set_default_options(params); + + for (i = params->read_argc; i < argc; ++i) + { + if + ( + RELABSD_STRING_EQUALS("-d", argv[i]) + || RELABSD_STRING_EQUALS("--daemon", argv[i]) + ) + { + params->run_as_daemon = 1; + + if (params->node == ((char *) NULL)) + { + RELABSD_S_WARNING + ( + "Running as a daemon without any communication file." + ); + } + } + else if + ( + RELABSD_STRING_EQUALS("-n", argv[i]) + || RELABSD_STRING_EQUALS("--name", argv[i]) + ) + { + if (argc == i) + { + RELABSD_FATAL("Missing value for \"%s\" <OPTION>.", argv[i]); + + return -1; + } + + ++i; + params->name = argv[i]; + } + else if + ( + RELABSD_STRING_EQUALS("-t", argv[i]) + || RELABSD_STRING_EQUALS("--timeout", argv[i]) + ) + { + if (argc == i) + { + RELABSD_FATAL("Missing value for \"%s\" <OPTION>.", argv[i]); + print_usage(argv[0]); + + return -1; + } + + ++i; + + if + ( + relabsd_util_parse_int(argv[i], 0, INT_MAX, &(params->timeout)) + < 0 + ) + { + RELABSD_FATAL + ( + "Invalid value for \"%s\" <OPTION> (valid range is [%d, %d]).", + argv[i - 1], + 0, + INT_MAX + ); + + print_usage(argv[0]); + + return -1; + } + } + else if + ( + RELABSD_STRING_EQUALS("-a", argv[i]) + || RELABSD_STRING_EQUALS("--axis", argv[i]) + ) + { + if (argc == i) + { + RELABSD_FATAL("Missing values for \"%s\" <OPTION>.", argv[i]); + print_usage(argv[0]); + + return -1; + } + + ++i; + + if (parse_axis((argc - i), (argv + i), params->axes) < 0) + { + print_usage(argv[0]); + + return -1; + } + } + else if + ( + RELABSD_STRING_EQUALS("-f", argv[i]) + || RELABSD_STRING_EQUALS("--config", argv[i]) + ) + { + if (argc == i) + { + RELABSD_FATAL("Missing value for \"%s\" <OPTION>.", argv[i]); + print_usage(argv[0]); + + return -1; + } + + ++i; + params->config_file = argv[i]; + } + else + { + RELABSD_FATAL("Unknown <OPTION> \"%s\".", argv[i]); + print_usage(argv[0]); + + return -1; + } + } + + RELABSD_S_DEBUG(RELABSD_DEBUG_PROGRAM_FLOW, "Parsed options."); + + return 0; +} |