wmclockmon/wmclockmon-config/tools.c

   1 /*
   2  * Tools : memory management, file loading and saving
   3  */
   4
   5 #include "../config.h"
   6 #include "defines.h"
   7 #include "variables.h"
   8 #include "tools.h"
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <string.h>
  12 #include <strings.h>
  13 #include <sys/types.h>
  14 #include <ctype.h>
  15 #include <pwd.h>
  16 #include <unistd.h>
  17 #include <sys/types.h>
  18 #include "configfile.h"
  19
  20 int    time_mode;
  21 char  *msgcmd;
  22
  23 void alrm_add(Alarm **list, const char *value) {
  24     Alarm *lst = *list;
  25     int    ok  = TRUE;
  26     char  *time = NULL, *date = NULL, *ison = NULL, *mesg = NULL, *at;
  27     char  *tokstr;
  28     char  *toksav;
  29
  30     if (! value) return;
  31     if (! lst) {
  32         lst   = xmalloc(sizeof(Alarm));
  33         *list = lst;
  34     } else {
  35         if (strcmp(value, lst->entry) == 0) ok = FALSE;
  36         while ( (lst->next) && ok) {
  37             lst = lst->next;
  38             if (strcmp(value, lst->entry) == 0) ok = FALSE;
  39         }
  40         if (! ok) return;
  41         lst->next = xmalloc(sizeof(Alarm));
  42         lst = lst->next;
  43     }
  44     toksav = tokstr = xstrdup(value);
  45     at = strchr(value, '@');
  46     if (at) ison = strtok(tokstr, "@");
  47     time = strtok(at ? NULL : tokstr, "-.");
  48     if (strchr(value, '-')) date = strtok(NULL, ".");
  49     mesg = strtok(NULL, "\n\0");
  50     lst->entry = xstrdup(value);
  51     lst->time  = time ? xstrdup(time) : NULL;
  52     lst->date  = date ? xstrdup(date) : NULL;
  53     lst->on    = ison ? getbool(ison) : TRUE;
  54     lst->msg   = mesg ? xstrdup(mesg) : NULL;
  55     lst->next  = NULL;
  56     FREE(toksav);
  57 }
  58
  59
  60 void free_alrm(Alarm **list) {
  61     Alarm *lst = *list, *next;
  62     while (lst) {
  63         next = lst->next;
  64         FREE(lst->entry);
  65         FREE(lst->time);
  66         FREE(lst->date);
  67         FREE(lst->msg);
  68         free(lst);
  69         lst = next;
  70     }
  71     *list = NULL;
  72 }
  73
  74
  75 void *xmalloc(size_t size) {
  76     void *ret = malloc(size);
  77     if (ret == NULL) {
  78         perror("malloc() ");
  79         exit(-1);
  80     } else
  81         return ret;
  82 }
  83
  84
  85 char *xstrdup(const char *string) {
  86     char *ret = strdup(string);
  87     if (ret == NULL) {
  88         perror("strdup() ");
  89         exit(-1);
  90     } else
  91         return ret;
  92 }
  93
  94
  95 int getbool(const char *value) {
  96     if (strcmp(value, "0") == 0) return FALSE;
  97     if (strcmp(value, "1") == 0) return TRUE;
  98     if (strcasecmp(value, "true") == 0) return TRUE;
  99     if (strcasecmp(value, "false") == 0) return FALSE;
 100     if (strcasecmp(value, "yes") == 0) return TRUE;
 101     if (strcasecmp(value, "no") == 0) return FALSE;
 102     if (strcasecmp(value, "on") == 0) return TRUE;
 103     if (strcasecmp(value, "off") == 0) return FALSE;
 104     printf("Error in converting \"%s\" to boolean value.\n", value);
 105     return FALSE;
 106 }
 107
 108
 109 void load_cfgfile(void) {
 110     FILE *file;
 111     int  i = 0;
 112     char line[MAXSTRLEN + 1];
 113     char *value;
 114
 115     if ((file = fopen(config_file, "r")) == NULL) {
 116         if (strstr(config_file, "/"DEFAULT_CFGFILE) == NULL)
 117             printf("Unable to open configuration file \"%s\".\n", config_file);
 118         return;
 119     }
 120     while (! feof(file)) {
 121         size_t n;
 122
 123         if (!fgets(line, MAXSTRLEN, file))
 124             break;
 125
 126         i++;
 127         n = strlen(line);
 128         if (n == 0)
 129             continue;
 130         if (line[n - 1] == '\n') line[n - 1] = 0;
 131         if ((line[0] == '#') || (line[0] == 0)) continue;
 132         value = strchr(line, '=') + 1;
 133         while ((value[0] == ' ') && (value[0] != 0)) value++;
 134         if (value[0] == 0) continue;
 135
 136         if (strncmp(line, "Backlight", 9) == 0)
 137             backlight = getbool(value);
 138         else if (strncmp(line, "Color", 5) == 0)
 139             light_color = xstrdup(value);
 140         else if (strncmp(line, "Alarm", 5) == 0)
 141             alrm_add(&alarms, value);
 142         else if (strncmp(line, "Command", 7) == 0)
 143             command = xstrdup(value);
 144         else if (strncmp(line, "MessageCmd", 10) == 0)
 145             msgcmd = xstrdup(value);
 146         else if (strncmp(line, "Blink", 5) == 0)
 147             switch_authorized = getbool(value);
 148         else if (strncmp(line, "H12", 3) == 0)
 149             h12 = getbool(value);
 150         else if (strncmp(line, "Locale", 6) == 0)
 151             use_locale = getbool(value);
 152         else if (strncmp(line, "StyleDir", 8) == 0)
 153             style_dir = xstrdup(value);
 154         else if (strncmp(line, "Style", 5) == 0)
 155             style_name = xstrdup(value);
 156         else if (strncmp(line, "TimeMode", 5) == 0)
 157             time_mode = atoi(value);
 158         else if (strncmp(line, "ShowCal", 7) == 0)
 159             showcal = getbool(value);
 160         else if (strncmp(line, "CalAlrms", 8) == 0)
 161             calalrms = getbool(value);
 162         else
 163             printf("Error in %s at line %d :\n[%s].\n", config_file, i, line);
 164     }
 165 }
 166
 167
 168 char *robust_home(void) {
 169     if (getenv("HOME"))
 170         return getenv("HOME");
 171     else if (getenv("USER") && getpwnam(getenv("USER")))
 172         return getpwnam(getenv ("USER"))->pw_dir;
 173     else if (getenv("LOGNAME") && getpwnam(getenv("LOGNAME")))
 174         return getpwnam(getenv("LOGNAME"))->pw_dir;
 175     else if (getpwuid(getuid()))
 176         return getpwuid(getuid())->pw_dir;
 177     else
 178         return "/";
 179 }
 180
 181
 182 void save_cfgfile(void) {
 183     FILE  *file;
 184     Alarm *alrm = alarms;
 185
 186     if ((file = fopen(config_file, "w")) == NULL) {
 187         if (strstr(config_file, "/"DEFAULT_CFGFILE) == NULL)
 188             printf("Unable to open configuration file \"%s\".\n", config_file);
 189         return;
 190     }
 191
 192     fprintf(file, configfile,
 193             backlight ? "On" : "Off",
 194             light_color ? light_color : "", /*"#6ec63b",*/
 195             command ? command : "",
 196             msgcmd ? msgcmd : "",
 197             switch_authorized ? "Yes" : "No",
 198             h12 ? "True" : "False",
 199             time_mode,
 200             use_locale ? "Yes" : "No",
 201             style_dir ? style_dir : "",
 202             style_name ? style_name : "",
 203             showcal ? "Yes" : "No",
 204             calalrms ? "On" : "Off");
 205     while (alrm) {
 206         fprintf(file, alarmline,
 207                 alrm->on ? "On" : "Off",
 208                 alrm->time ? alrm->time : "12:00",
 209                 alrm->date ? "-" : "",
 210                 alrm->date ? alrm->date : "",
 211                 alrm->msg ? "." : "",
 212                 alrm->msg ? alrm->msg : "");
 213         alrm = alrm->next;
 214     }
 215     fclose(file);
 216 }