mirror of https://github.com/xzeldon/htop.git
103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
/*
|
|
htop - SysArchMeter.c
|
|
(C) 2021 htop dev team
|
|
Released under the GNU GPLv2, see the COPYING file
|
|
in the source distribution for its full text.
|
|
*/
|
|
#include "config.h" // IWYU pragma: keep
|
|
|
|
#include "SysArchMeter.h"
|
|
|
|
#include <stdio.h>
|
|
#include <sys/utsname.h>
|
|
|
|
#include "XUtils.h"
|
|
|
|
|
|
static const int SysArchMeter_attributes[] = {HOSTNAME};
|
|
|
|
static void parseOSRelease(char* buffer, size_t bufferLen) {
|
|
FILE* stream = fopen("/etc/os-release", "r");
|
|
if (!stream) {
|
|
stream = fopen("/usr/lib/os-release", "r");
|
|
if (!stream) {
|
|
xSnprintf(buffer, bufferLen, "Unknown Distro");
|
|
return;
|
|
}
|
|
}
|
|
|
|
char name[64] = {'\0'};
|
|
char version[64] = {'\0'};
|
|
char lineBuffer[256];
|
|
while (fgets(lineBuffer, sizeof(lineBuffer), stream)) {
|
|
if (String_startsWith(lineBuffer, "PRETTY_NAME=\"")) {
|
|
const char* start = lineBuffer + strlen("PRETTY_NAME=\"");
|
|
const char* stop = strrchr(lineBuffer, '"');
|
|
if (!stop || stop <= start)
|
|
continue;
|
|
String_safeStrncpy(buffer, start, MINIMUM(bufferLen, (size_t)(stop - start + 1)));
|
|
fclose(stream);
|
|
return;
|
|
}
|
|
if (String_startsWith(lineBuffer, "NAME=\"")) {
|
|
const char* start = lineBuffer + strlen("NAME=\"");
|
|
const char* stop = strrchr(lineBuffer, '"');
|
|
if (!stop || stop <= start)
|
|
continue;
|
|
String_safeStrncpy(name, start, MINIMUM(sizeof(name), (size_t)(stop - start + 1)));
|
|
continue;
|
|
}
|
|
if (String_startsWith(lineBuffer, "VERSION=\"")) {
|
|
const char* start = lineBuffer + strlen("VERSION=\"");
|
|
const char* stop = strrchr(lineBuffer, '"');
|
|
if (!stop || stop <= start)
|
|
continue;
|
|
String_safeStrncpy(version, start, MINIMUM(sizeof(version), (size_t)(stop - start + 1)));
|
|
continue;
|
|
}
|
|
}
|
|
fclose(stream);
|
|
|
|
snprintf(buffer, bufferLen, "%s%s%s", name[0] ? name : "", name[0] && version[0] ? " " : "", version);
|
|
}
|
|
|
|
static void SysArchMeter_updateValues(ATTR_UNUSED Meter* this, char* buffer, size_t size) {
|
|
static char savedString[128] = {'\0'};
|
|
static bool loaded_data = false;
|
|
|
|
if (!loaded_data) {
|
|
struct utsname uname_info;
|
|
int uname_result = uname(&uname_info);
|
|
|
|
char distro[128];
|
|
parseOSRelease(distro, sizeof(distro));
|
|
|
|
if (uname_result == 0) {
|
|
size_t written = xSnprintf(savedString, sizeof(savedString), "%s %s [%s]", uname_info.sysname, uname_info.release, uname_info.machine);
|
|
if (!String_contains_i(savedString, distro) && sizeof(savedString) > written)
|
|
snprintf(savedString + written, sizeof(savedString) - written, " @ %s", distro);
|
|
} else {
|
|
snprintf(savedString, sizeof(savedString), "%s", distro);
|
|
}
|
|
|
|
loaded_data = true;
|
|
}
|
|
|
|
String_safeStrncpy(buffer, savedString, size);
|
|
}
|
|
|
|
const MeterClass SysArchMeter_class = {
|
|
.super = {
|
|
.extends = Class(Meter),
|
|
.delete = Meter_delete
|
|
},
|
|
.updateValues = SysArchMeter_updateValues,
|
|
.defaultMode = TEXT_METERMODE,
|
|
.maxItems = 0,
|
|
.total = 100.0,
|
|
.attributes = SysArchMeter_attributes,
|
|
.name = "System",
|
|
.uiName = "System",
|
|
.caption = "System: ",
|
|
};
|