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-rw-r--r--src/settings.c294
1 files changed, 0 insertions, 294 deletions
diff --git a/src/settings.c b/src/settings.c
deleted file mode 100644
index 1c32a2f..0000000
--- a/src/settings.c
+++ /dev/null
@@ -1,294 +0,0 @@
-/**
- * Copyright © 2016 Mattias Andrée <maandree@member.fsf.org>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#include "settings.h"
-#include "arg.h"
-#include "macros.h"
-#include <ctype.h>
-#include <errno.h>
-#include <math.h>
-#include <limits.h>
-
-#include <libhaiku.h>
-
-
-
-/**
- * Print usage information and exit if a condition is met.
- *
- * @param condition Do no do anything iff this is zero.
- */
-static void
-usage(int condition)
-{
- if (!condition) return;
- fprintf(stderr,
- "Usage: %s [OPTIONS]...\n"
- "See `man 1 radharc` for more information.\n",
- !argv0 ? "radharc" : argv0), exit(2);
-}
-
-
-/**
- * Parse a temperature string.
- *
- * @param str The temperature string.
- * @param temp Output parameter for the temperature.
- * Overflow is truncated.
- * @param direction Unless `NULL`, will be set to +1 if `str`
- * starts with a '+', `-1` if `str` starts
- * with a '-', 0 otherwise. If `NULL` and
- * `str` starts with a '-' or a '+', the
- * function will fail.
- * @param lower The function shall fail if the evaluated
- * temperature is below this.
- * @return 0 on success, -1 on error.
- */
-static int
-parse_temperature(const char *str, long int *temp, int *direction, int lower)
-{
- char *end;
- int dir = *str == '-' ? -1 : *str == '+' ? +1 : 0;
- str += !!dir;
- t (dir && !direction);
- if (dir) *direction = dir;
- t (!isdigit(*str));
- *temp = (errno = 0, strtol)(str, &end, 10);
- t ((errno && !((errno == ERANGE) && (*temp == LONG_MAX))) || *end || (*temp < lower));
- return 0;
-fail:
- return -1;
-}
-
-
-/**
- * Parse a string as a positively valued `struct timespec`.
- *
- * @param str The string.
- * @param ts Output parameter for the value.
- * @return 0 on success, -1 on error.
- */
-static int
-parse_timespec(const char *str, struct timespec *ts)
-{
-#define DIGIT(var, c) var += (var) * 10 + ((c) & 15);
-#define ALL_DIGITS(cond, var) while ((cond) && isdigit(*str)) DIGIT(var, *str++)
-
- int points = 0;
- memset(ts, 0, sizeof(*ts));
-
- /* Parse seconds. */
- t (!isdigit(*str));
- ALL_DIGITS(1, ts->tv_sec);
-
- /* End? */
- if (!*str) return 0;
- t (*str != '.');
-
- /* Parse nanoseconds.*/
- ALL_DIGITS(points++ < 9, ts->tv_nsec);
- if ((points == 9) && isdigit(*str) && (*str++ >= '5') && (++(ts->tv_nsec) == 1000000000L))
- ts->tv_sec += 1, ts->tv_nsec = 0;
- while (isdigit(*str)) str++;
- t (*str);
-
- /* End! */
- return 0;
-fail:
- return -1;
-}
-
-
-/**
- * Parse a latitude or a longitude value.
- *
- * @param str The string.
- * @param loc Output parameter for the value.
- * @param limit The limit of the absolute value.
- * @return 0 on success, -1 on error.
- */
-static int
-parse_location(char *str, double *loc, double limit)
-{
- char* end;
- if (strstr(str, "−") == str) /* Support proper minus. */
- *(str += strlen("−") - 1) = '-';
- if ((*str != '-') && (*str != '+') && (*str != '.') && !isdigit(*str))
- return -1;
- *loc = (errno = 0, strtod)(str, &end);
- return -(errno || *loc || (fabs(*loc) > limit));
-}
-
-
-/**
- * Parse the command line.
- *
- * @param argc The number of elements in `argv`.
- * @param argv The commnad line arguments including the zeroth elemenet.
- * @param settings Output parameter for the settings.
- */
-void
-parse_command_line(int argc, char *argv[], struct settings *s)
-{
- int location_set = 0;
- char *p;
- char *arg;
- int c = 0;
-
- memset(s, 0, sizeof(*s));
- s->natural_temp = 6500;
- s->day_temp = 5500;
- s->night_temp = 3500;
- s->trans_speed = 50;
-
-#define BOOLEAN(var) var = !plus; break
-#define PLUS(...) (plus ? (__VA_ARGS__) : 0)
- ARGBEGIN {
- case 'l':
- PLUS(location_set = 0);
- usage(!(p = strchr(arg = ARGF(), ':')));
- *p++ = '\0', location_set = 1;
- usage(parse_location(arg, &(s->latitude), 90.0));
- usage(parse_location(p, &(s->longitude), 180.0));
- break;
- case 't':
- PLUS(s->day_temp = 5500, s->night_temp = 3500);
- s->temp = s->day_temp = s->night_temp = 0, s->temp_direction = 0;
- if ((p = strchr(arg = ARGF(), ':'))) {
- *p++ = '\0';
- usage(parse_temperature(arg, &(s->day_temp), NULL, 1000));
- usage(parse_temperature(p, &(s->night_temp), NULL, 1000));
- } else {
- usage(parse_temperature(arg, &(s->temp), &(s->temp_direction), 1000));
- }
- break;
- case 'T':
- PLUS(s->natural_temp = 6500);
- usage(parse_temperature(ARGF(), &(s->natural_temp), NULL, 1000));
- break;
- case 's':
- PLUS(s->trans_speed = 50);
- s->trans_speed = 0;
- usage(parse_timespec(ARGF(), &(s->transition)));
- break;
- case 'S':
- PLUS(s->trans_speed = 0);
- usage(parse_temperature(ARGF(), &(s->trans_speed), NULL, 1));
- break;
- case 'h':
- s->hookpath = (plus ? NULL : ARGF());
- break;
- case 'd': c++; /* Fall though. */
- case 'e': c++; /* Fall though. */
- case 'm': c++;
- PLUS(s->monitors_n = 0, free(s->monitors_id), free(s->monitors_arg));
- xrealloc(&(s->monitors_id), s->monitors_n + 1);
- xrealloc(&(s->monitors_arg), s->monitors_n + 1);
- s->monitors_id[s->monitors_n] = ARGF();
- s->monitors_arg[s->monitors_n++] = (c == 3 ? 'm' : c == 2 ? 'e' : 'd'), c = 0;
- break;
- case 'p': BOOLEAN(s->print_status);
- case 'n': BOOLEAN(s->panic_start);
- case 'N': BOOLEAN(s->panic_else);
- case 'o': BOOLEAN(s->set_and_exit);
- case 'x': BOOLEAN(s->ignore_calib);
- case 'i': BOOLEAN(s->negative);
- case 'b': BOOLEAN(s->use_bus);
- default: usage(1); break;
- } ARGEND;
- usage(argc);
-
- if (!location_set && !(s->temp))
- fprintf(stderr,
- "%s: The -l option is mandatory, unless single value -t is used. "
- "See `man 1 radharc` for more information.\n",
- !argv0 ? "radharc" : argv0), exit(2);
-
- return;
-fail:
- libhaiku_perror(argv0 ? argv0 : "radharc");
- exit(1);
-}
-
-
-/**
- * Marshal settings into a buffer.
- *
- * @param buffer The buffer, `NULL` if you want to know the required size.
- * @param settings The settings to marshal.
- * @return The size of the output.
- */
-size_t
-marshal_settings(char *buffer, const struct settings *settings)
-{
-#define MARSHAL(N, DATUMP) (n += aux = (N), (buf ? (memcpy(buf, DATUMP, aux), buf += aux, 0) : 0))
-
- size_t aux, n = 0, i = 0;
- char *buf = buffer;
-
- if (buffer) i = marshal_settings(NULL, settings);
- MARSHAL(sizeof(i), &i);
-
- MARSHAL(sizeof(*settings), settings);
- if (settings->hookpath) MARSHAL(strlen(settings->hookpath) + 1, settings->hookpath);
- if (settings->monitors_arg) MARSHAL(settings->monitors_n, settings->monitors_arg);
- for (i = 0; i < settings->monitors_n; i++)
- MARSHAL(strlen(settings->monitors_id[i]) + 1, settings->monitors_id[i]);
-
- return n;
-}
-
-
-/**
- * Unmarshal settings from a buffer.
- *
- * @param buffer The buffer.
- * @param settings Output parameter for the settings, will be allocated.
- * @return The number of unmarshalled bytes, 0 on error.
- */
-size_t
-unmarshal_settings(char *buffer, struct settings **settings)
-{
-#define UNMARSHAL(N, DATUMP) (aux = (N), memcpy((DATUMP), buf, aux), buf += aux)
-
- size_t n, aux, i;
- struct settings s_, *s = NULL;
- char *buf = buffer;
-
- UNMARSHAL(sizeof(n), &n);
- if (!(s = *settings = malloc(n - sizeof(n)))) return 0;
- s->monitors_id = NULL, s->monitors_arg = NULL;
-
- UNMARSHAL(sizeof(s_), &s_);
- if (s_.monitors_n) {
- *s = s_;
- xmalloc(&(s->monitors_id), s_.monitors_n);
- xmalloc(&(s->monitors_arg), s_.monitors_n);
- }
-
- buf = strchr(s->hookpath = buf, '\0') + 1;
-
- UNMARSHAL(s_.monitors_n, s->monitors_arg);
- for (i = 0; i < s_.monitors_n; i++)
- UNMARSHAL(strlen(buf + 1), s->monitors_id[i]);
-
- return n;
-
-fail:
- CLEANUP(free(s->monitors_id), free(s->monitors_arg), free(s), *settings = NULL);
- return 0;
-}
-
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