| 1 | /* |
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| 2 | * sensord |
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| 3 | * |
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| 4 | * A daemon that periodically logs sensor information to syslog. |
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| 5 | * |
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| 6 | * Copyright (c) 1999-2002 Merlin Hughes <merlin@merlin.org> |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or modify |
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| 9 | * it under the terms of the GNU General Public License as published by |
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| 10 | * the Free Software Foundation; either version 2 of the License, or |
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| 11 | * (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
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| 21 | * MA 02110-1301 USA. |
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| 22 | */ |
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| 23 | |
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| 24 | #include <stdio.h> |
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| 25 | #include <stdlib.h> |
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| 26 | #include <string.h> |
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| 27 | #include <syslog.h> |
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| 28 | #include <time.h> |
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| 29 | #include <unistd.h> |
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| 30 | #include <sys/stat.h> |
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| 31 | |
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| 32 | #include "sensord.h" |
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| 33 | #include "lib/error.h" |
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| 34 | |
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| 35 | static int |
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| 36 | loadConfig |
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| 37 | (const char *cfgPath, int reload) { |
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| 38 | struct stat stats; |
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| 39 | FILE *cfg = NULL; |
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| 40 | int ret = 0; |
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| 41 | |
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| 42 | if (cfgPath && !strcmp (cfgPath, "-")) { |
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| 43 | if (!reload) { |
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| 44 | if ((ret = sensors_init (stdin))) { |
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| 45 | sensorLog (LOG_ERR, "Error loading sensors configuration file <stdin>: %s", |
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| 46 | sensors_strerror (ret)); |
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| 47 | ret = 12; |
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| 48 | } |
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| 49 | } |
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| 50 | } else if (cfgPath && stat (cfgPath, &stats) < 0) { |
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| 51 | sensorLog (LOG_ERR, "Error stating sensors configuration file: %s", cfgPath); |
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| 52 | ret = 10; |
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| 53 | } else { |
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| 54 | if (reload) { |
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| 55 | sensorLog (LOG_INFO, "configuration reloading"); |
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| 56 | sensors_cleanup (); |
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| 57 | } |
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| 58 | if (cfgPath && !(cfg = fopen (cfgPath, "r"))) { |
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| 59 | sensorLog (LOG_ERR, "Error opening sensors configuration file: %s", cfgPath); |
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| 60 | ret = 11; |
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| 61 | } else if ((ret = sensors_init (cfg))) { |
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| 62 | sensorLog (LOG_ERR, "Error loading sensors configuration file %s: %s", |
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| 63 | cfgPath ? cfgPath : "(default)", sensors_strerror (ret)); |
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| 64 | ret = 11; |
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| 65 | } |
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| 66 | if (cfg) |
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| 67 | fclose (cfg); |
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| 68 | } |
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| 69 | |
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| 70 | return ret; |
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| 71 | } |
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| 72 | |
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| 73 | int |
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| 74 | loadLib |
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| 75 | (const char *cfgPath) { |
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| 76 | int ret; |
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| 77 | ret = loadConfig (cfgPath, 0); |
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| 78 | if (!ret) |
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| 79 | ret = initKnownChips (); |
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| 80 | return ret; |
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| 81 | } |
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| 82 | |
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| 83 | int |
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| 84 | reloadLib |
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| 85 | (const char *cfgPath) { |
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| 86 | int ret; |
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| 87 | freeKnownChips (); |
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| 88 | ret = loadConfig (cfgPath, 1); |
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| 89 | if (!ret) |
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| 90 | ret = initKnownChips (); |
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| 91 | return ret; |
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| 92 | } |
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| 93 | |
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| 94 | int |
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| 95 | unloadLib |
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| 96 | (void) { |
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| 97 | freeKnownChips (); |
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| 98 | sensors_cleanup (); |
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| 99 | return 0; |
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| 100 | } |
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