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#if defined(__linux__)
#include "common.h"
int get_sys_os_dist(char **name, char **version) {
char buf[255] = {0};
const char *filename = "/etc/os-release";
FILE *fp;
fp = fopen(filename, "r");
if (!fp) {
*name = strdup("Unknown");
*version = strdup("Unknown");
return -1;
}
while (fgets(buf, sizeof(buf) - 1, fp) != NULL) {
rstrip(buf);
char *key, *value;
char *start;
start = buf;
key = strchr(buf, '=');
if (key) {
size_t diff = key - start;
*key = 0;
key = start;
value = key + diff + 1;
} else {
continue;
}
key = buf;
if (value[0] == '\"') {
memmove(value, &value[1], strlen(&value[1]));
if (strlen(value))
value[strlen(value) - 1] = '\0';
}
if (strlen(value) && value[strlen(value) - 1] == '\"') {
value[strlen(value) - 1] = '\0';
}
if (!strcmp(key, "NAME")) {
*name = strdup(value);
}
if (!strcmp(key, "VERSION") || !strcmp(key, "VERSION_ID") || !strcmp(key, "BUILD_ID")) {
*version = strdup(value);
}
}
fclose(fp);
return 0;
}
ssize_t get_sys_memory() {
char buf[255] = {0};
ssize_t result;
FILE *fp;
fp = fopen("/proc/meminfo", "r");
if (!fp) {
perror("Unable to open /proc/meminfo");
return -1;
}
result = 0;
while (fgets(buf, sizeof(buf) - 1, fp) != NULL) {
char *key = strstr(buf, "MemTotal:");
if (key) {
result = strtoll(key + strlen("MemTotal:"), NULL, 10);
break;
}
}
fclose(fp);
return result;
}
char *get_sys_dmi_product() {
FILE *fp;
char *buf;
const int buf_size = 255;
buf = calloc(buf_size, sizeof(*buf));
if (!buf) {
return NULL;
}
fp = fopen("/sys/class/dmi/id/product_name", "r");
if (!fp) {
free(buf);
return NULL;
}
if (!fgets(buf, buf_size, fp)) {
perror("Unable to read system vendor");
if (fp != NULL) {
free(buf);
fclose(fp);
}
return NULL;
}
fclose(fp);
return buf;
}
struct Block_Device **get_block_devices(size_t *total) {
struct Block_Device **result;
struct dirent *rec;
DIR *dp;
size_t i;
size_t devices_total;
dp = opendir("/sys/block");
if (!dp) {
perror("/sys/block");
return 0;
}
i = 0;
devices_total = 0;
*total = devices_total;
while ((rec = readdir(dp)) != NULL) {
if (!strcmp(rec->d_name, ".") || !strcmp(rec->d_name, "..")) {
continue;
}
devices_total++;
}
rewinddir(dp);
result = calloc(devices_total + 1, sizeof(result));
for (size_t d = 0; d < devices_total; d++) {
result[d] = calloc(1, sizeof(*result[0]));
}
while ((rec = readdir(dp)) != NULL) {
if (!strcmp(rec->d_name, ".") || !strcmp(rec->d_name, "..")) {
continue;
}
char device_path[PATH_MAX] = {0};
snprintf(device_path, sizeof(device_path) - 1, "/dev/%s", rec->d_name);
char device_size_file[PATH_MAX] = {0};
snprintf(device_size_file, sizeof(device_size_file) - 1, "/sys/block/%s/size", rec->d_name);
char device_model_file[PATH_MAX] = {0};
snprintf(device_model_file, sizeof(device_model_file) - 1, "/sys/block/%s/device/model", rec->d_name);
char line[255] = {0};
FILE *fp;
size_t device_size;
fp = fopen(device_size_file, "r");
if (!fp) {
device_size = 0;
} else {
if (!fgets(line, sizeof(line) - 1, fp)) {
perror("Unable to read from file");
continue;
}
device_size = strtoull(line, NULL, 10);
fclose(fp);
}
char device_model[255] = {0};
fp = fopen(device_model_file, "r");
if (!fp) {
// no model file
strcpy(device_model, "Unnamed");
} else {
if (!fgets(device_model, sizeof(line) - 1, fp)) {
perror("Unable to read device model");
continue;
}
fclose(fp);
}
rstrip(device_model);
strcpy(result[i]->model, device_model);
strncpy(result[i]->path, rec->d_name, sizeof(result[i]->path) - 1);
result[i]->size = device_size;
i++;
}
*total = devices_total;
closedir(dp);
return result;
}
#endif
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