mirror of https://github.com/xzeldon/htop.git
Refactor and fix resource leaks.
This commit is contained in:
Hisham Muhammad
parent
79e390120a
commit
b1564c2be9
260
BatteryMeter.c
260
BatteryMeter.c
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@ -36,12 +36,13 @@ int BatteryMeter_attributes[] = {
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static unsigned long int parseUevent(FILE * file, const char *key) {
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char line[100];
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unsigned long int dValue = 0;
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char* saveptr;
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while (fgets(line, sizeof line, file)) {
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if (strncmp(line, key, strlen(key)) == 0) {
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char *value;
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strtok(line, "=");
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value = strtok(NULL, "=");
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strtok_r(line, "=", &saveptr);
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value = strtok_r(NULL, "=", &saveptr);
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dValue = atoi(value);
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break;
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}
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@ -55,169 +56,158 @@ static unsigned long int parseBatInfo(const char *fileName, const unsigned short
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if (!batteryDir)
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return 0;
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typedef struct listLbl {
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char *content;
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struct listLbl *next;
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} list;
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list *myList = NULL;
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list *newEntry;
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/*
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Some of this is based off of code found in kismet (they claim it came from gkrellm).
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Written for multi battery use...
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*/
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for (const struct dirent* dirEntries = readdir((DIR *) batteryDir); dirEntries; dirEntries = readdir((DIR *) batteryDir)) {
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char* entryName = (char *) dirEntries->d_name;
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char* batteries[64];
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unsigned int nBatteries = 0;
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memset(batteries, sizeof batteries, sizeof (char*));
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struct dirent result;
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struct dirent* dirEntry;
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while (nBatteries < sizeof batteries) {
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readdir_r(batteryDir, &result, &dirEntry);
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if (!dirEntry)
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break;
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char* entryName = dirEntry->d_name;
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if (strncmp(entryName, "BAT", 3))
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continue;
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newEntry = calloc(1, sizeof(list));
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newEntry->next = myList;
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newEntry->content = entryName;
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myList = newEntry;
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batteries[nBatteries] = strdup(entryName);
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nBatteries++;
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}
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closedir(batteryDir);
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unsigned long int total = 0;
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for (newEntry = myList; newEntry; newEntry = newEntry->next) {
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const char infoPath[30];
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const FILE *file;
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for (unsigned int i = 0; i < nBatteries; i++) {
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char infoPath[30];
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snprintf(infoPath, sizeof infoPath, "%s%s/%s", batteryPath, batteries[i], fileName);
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FILE* file = fopen(infoPath, "r");
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if (!file) {
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break;
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}
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char line[50];
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snprintf((char *) infoPath, sizeof infoPath, "%s%s/%s", batteryPath, newEntry->content, fileName);
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if ((file = fopen(infoPath, "r")) == NULL) {
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closedir(batteryDir);
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return 0;
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}
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for (unsigned short int i = 0; i < lineNum; i++) {
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fgets(line, sizeof line, (FILE *) file);
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fgets(line, sizeof line, file);
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}
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fclose((FILE *) file);
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fclose(file);
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const char *foundNumTmp = String_getToken(line, wordNum);
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const unsigned long int foundNum = atoi(foundNumTmp);
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free((char *) foundNumTmp);
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char *foundNumStr = String_getToken(line, wordNum);
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const unsigned long int foundNum = atoi(foundNumStr);
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free(foundNumStr);
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total += foundNum;
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}
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free(myList);
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free(newEntry);
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closedir(batteryDir);
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for (unsigned int i = 0; i < nBatteries; i++) {
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free(batteries[i]);
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}
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return total;
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}
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static ACPresence chkIsOnline() {
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FILE *file = NULL;
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static ACPresence procAcpiCheck() {
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ACPresence isOn = AC_ERROR;
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const char *power_supplyPath = PROCDIR "/acpi/ac_adapter";
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DIR *power_supplyDir = opendir(power_supplyPath);
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if (!power_supplyDir) {
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return AC_ERROR;
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}
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if (access(PROCDIR "/acpi/ac_adapter", F_OK) == 0) {
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const char *power_supplyPath = PROCDIR "/acpi/ac_adapter";
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DIR *power_supplyDir = opendir(power_supplyPath);
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if (!power_supplyDir)
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return AC_ERROR;
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struct dirent result;
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struct dirent* dirEntry;
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for (;;) {
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readdir_r((DIR *) power_supplyDir, &result, &dirEntry);
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if (!dirEntry)
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break;
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for (const struct dirent *dirEntries = readdir((DIR *) power_supplyDir); dirEntries; dirEntries = readdir((DIR *) power_supplyDir)) {
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char* entryName = (char *) dirEntries->d_name;
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char* entryName = (char *) dirEntry->d_name;
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if (entryName[0] != 'A')
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continue;
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if (entryName[0] != 'A')
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continue;
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char statePath[50];
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snprintf((char *) statePath, sizeof statePath, "%s/%s/state", power_supplyPath, entryName);
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file = fopen(statePath, "r");
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char statePath[50];
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snprintf((char *) statePath, sizeof statePath, "%s/%s/state", power_supplyPath, entryName);
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FILE* file = fopen(statePath, "r");
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if (!file) {
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isOn = AC_ERROR;
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continue;
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}
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char line[100];
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fgets(line, sizeof line, file);
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line[sizeof(line) - 1] = '\0';
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if (file) {
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fclose(file);
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file = NULL;
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}
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const char *isOnline = String_getToken(line, 2);
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if (strcmp(isOnline, "on-line") == 0) {
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free((char *) isOnline);
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isOn = AC_PRESENT;
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// If any AC adapter is being used then stop
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break;
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} else {
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isOn = AC_ABSENT;
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}
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free((char *) isOnline);
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if (!file) {
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isOn = AC_ERROR;
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continue;
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}
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if (power_supplyDir)
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closedir(power_supplyDir);
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char line[100];
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fgets(line, sizeof line, file);
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line[sizeof(line) - 1] = '\0';
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} else {
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fclose(file);
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const char *power_supplyPath = "/sys/class/power_supply";
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const char *isOnline = String_getToken(line, 2);
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if (access("/sys/class/power_supply", F_OK) == 0) {
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const struct dirent *dirEntries;
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DIR *power_supplyDir = opendir(power_supplyPath);
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char *entryName;
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if (!power_supplyDir) {
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return AC_ERROR;
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}
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for (dirEntries = readdir((DIR *) power_supplyDir); dirEntries; dirEntries = readdir((DIR *) power_supplyDir)) {
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entryName = (char *) dirEntries->d_name;
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if (strncmp(entryName, "A", 1)) {
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continue;
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}
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char onlinePath[50];
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snprintf((char *) onlinePath, sizeof onlinePath, "%s/%s/online", power_supplyPath, entryName);
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file = fopen(onlinePath, "r");
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if (!file) {
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isOn = AC_ERROR;
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continue;
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}
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isOn = (fgetc(file) - '0');
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if (file) {
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fclose(file);
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file = NULL;
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}
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if (isOn == AC_PRESENT) {
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// If any AC adapter is being used then stop
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break;
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} else {
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continue;
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}
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}
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if (power_supplyDir)
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closedir(power_supplyDir);
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if (strcmp(isOnline, "on-line") == 0) {
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isOn = AC_PRESENT;
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} else {
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isOn = AC_ABSENT;
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}
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free((char *) isOnline);
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if (isOn == AC_PRESENT) {
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break;
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}
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}
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// Just in case :-)
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if (file)
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fclose(file);
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if (power_supplyDir)
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closedir(power_supplyDir);
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return isOn;
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}
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static ACPresence sysCheck() {
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ACPresence isOn = AC_ERROR;
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const char *power_supplyPath = "/sys/class/power_supply";
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DIR *power_supplyDir = opendir(power_supplyPath);
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if (!power_supplyDir) {
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return AC_ERROR;
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}
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struct dirent result;
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struct dirent* dirEntry;
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for (;;) {
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readdir_r((DIR *) power_supplyDir, &result, &dirEntry);
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if (!dirEntry)
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break;
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char* entryName = (char *) dirEntry->d_name;
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if (strncmp(entryName, "A", 1)) {
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continue;
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}
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char onlinePath[50];
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snprintf((char *) onlinePath, sizeof onlinePath, "%s/%s/online", power_supplyPath, entryName);
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FILE* file = fopen(onlinePath, "r");
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if (!file) {
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isOn = AC_ERROR;
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} else {
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isOn = (fgetc(file) - '0');
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fclose(file);
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if (isOn == AC_PRESENT) {
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// If any AC adapter is being used then stop
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break;
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}
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}
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}
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if (power_supplyDir)
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closedir(power_supplyDir);
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return isOn;
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}
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static ACPresence chkIsOnline() {
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if (access(PROCDIR "/acpi/ac_adapter", F_OK) == 0) {
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return procAcpiCheck();
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} else if (access("/sys/class/power_supply", F_OK) == 0) {
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return sysCheck();
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} else {
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return AC_ERROR;
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}
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}
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static double getProcBatData() {
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const unsigned long int totalFull = parseBatInfo("info", 3, 4);
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if (totalFull == 0)
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@ -232,19 +222,21 @@ static double getProcBatData() {
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}
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static double getSysBatData() {
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const struct dirent *dirEntries;
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const char *power_supplyPath = "/sys/class/power_supply/";
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DIR *power_supplyDir = opendir(power_supplyPath);
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if (!power_supplyDir)
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return 0;
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char *entryName;
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unsigned long int totalFull = 0;
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unsigned long int totalRemain = 0;
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for (dirEntries = readdir((DIR *) power_supplyDir); dirEntries; dirEntries = readdir((DIR *) power_supplyDir)) {
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entryName = (char *) dirEntries->d_name;
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struct dirent result;
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struct dirent* dirEntry;
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for (;;) {
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readdir_r((DIR *) power_supplyDir, &result, &dirEntry);
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if (!dirEntry)
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break;
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char* entryName = (char *) dirEntry->d_name;
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if (strncmp(entryName, "BAT", 3)) {
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continue;
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