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#include "EnvScreen.h"
#include "CRT.h"
#include "IncSet.h"
#include "ListItem.h"
#include "StringUtils.h"
#include <stdlib.h>
#include <string.h>
#include <sys/sysctl.h>
#include <sys/types.h>
#include <unistd.h>
/*{
#include "ProcessList.h"
#include "Panel.h"
#include "FunctionBar.h"
typedef struct EnvScreen_ {
Process* process;
Panel* display;
FunctionBar* bar;
} EnvScreen;
}*/
static const char* EnvScreenFunctions[] = {"Search ", "Filter ", "Refresh", "Done ", NULL};
static const char* EnvScreenKeys[] = {"F3", "F4", "F5", "Esc"};
static int EnvScreenEvents[] = {KEY_F(3), KEY_F(4), KEY_F(5), 27};
EnvScreen* EnvScreen_new(Process* process) {
EnvScreen* this = malloc(sizeof(EnvScreen));
this->process = process;
FunctionBar* bar = FunctionBar_new(EnvScreenFunctions, EnvScreenKeys, EnvScreenEvents);
this->display = Panel_new(0, 1, COLS, LINES-3, false, Class(ListItem), bar);
return this;
}
void EnvScreen_delete(EnvScreen* this) {
Panel_delete((Object*)this->display);
free(this);
}
static void EnvScreen_draw(EnvScreen* this, IncSet* inc) {
attrset(CRT_colors[METER_TEXT]);
mvhline(0, 0, ' ', COLS);
mvprintw(0, 0, "environment of process %d - %s", this->process->pid, this->process->comm);
attrset(CRT_colors[DEFAULT_COLOR]);
Panel_draw(this->display, true);
IncSet_drawBar(inc);
}
static inline void addLine(const char* line, Vector* lines, Panel* panel, const char* incFilter) {
Vector_add(lines, (Object*) ListItem_new(line, 0));
if (!incFilter || String_contains_i(line, incFilter))
Panel_add(panel, (Object*)Vector_get(lines, Vector_size(lines)-1));
}
static void EnvScreen_scan(EnvScreen* this, Vector* lines, IncSet* inc) {
Panel* panel = this->display;
int idx = MAX(Panel_getSelectedIndex(panel), 0);
uid_t uid = getuid();
Panel_prune(panel);
if (uid == 0 || uid == this->process->st_uid) {
long argmax = sysconf(_SC_ARG_MAX);
char* buf = malloc(argmax);
size_t bufsz = argmax;
if (buf) {
int mib[3];
mib[0] = CTL_KERN;
mib[1] = KERN_PROCARGS2;
mib[2] = this->process->pid;
bufsz = argmax;
if (sysctl(mib, 3, buf, &bufsz, 0, 0) == 0) {
if (bufsz > sizeof(int)) {
char *p = buf, *endp = buf + bufsz;
int argc = *(int*)p;
p += sizeof(int);
// skip exe
p = strchr(p, 0)+1;
// skip padding
while(!*p && p < endp)
++p;
// skip argv
for (; argc-- && p < endp; p = strrchr(p, 0)+1)
;
// skip padding
while(!*p && p < endp)
++p;
for (; *p && p < endp; p = strrchr(p, 0)+1)
addLine(p, lines, panel, IncSet_filter(inc));
}
else {
addLine("Could not allocate memory.", lines, panel, IncSet_filter(inc));
}
}
else {
addLine("sysctl(KERN_PROCARGS2) failed.", lines, panel, IncSet_filter(inc));
}
free(buf);
}
else {
addLine("Out of memory.", lines, panel, IncSet_filter(inc));
}
}
else {
addLine("Process belongs to different user.", lines, panel, IncSet_filter(inc));
}
Vector_insertionSort(lines);
Vector_insertionSort(panel->items);
Panel_setSelected(panel, idx);
}
void EnvScreen_run(EnvScreen* this) {
Panel* panel = this->display;
Panel_setHeader(panel, " ");
FunctionBar* bar = panel->defaultBar;
IncSet* inc = IncSet_new(bar);
Vector* lines = Vector_new(panel->items->type, true, DEFAULT_SIZE);
EnvScreen_scan(this, lines, inc);
EnvScreen_draw(this, inc);
bool looping = true;
while (looping) {
Panel_draw(panel, true);
if (inc->active)
move(LINES-1, CRT_cursorX);
int ch = getch();
if (ch == KEY_MOUSE) {
MEVENT mevent;
int ok = getmouse(&mevent);
if (ok == OK)
if (mevent.y >= panel->y && mevent.y < LINES - 1) {
Panel_setSelected(panel, mevent.y - panel->y + panel->scrollV);
ch = 0;
} if (mevent.y == LINES - 1)
ch = IncSet_synthesizeEvent(inc, mevent.x);
}
if (inc->active) {
IncSet_handleKey(inc, ch, panel, IncSet_getListItemValue, lines);
continue;
}
switch(ch) {
case ERR:
continue;
case KEY_F(3):
case '/':
IncSet_activate(inc, INC_SEARCH, panel);
break;
case KEY_F(4):
case '\\':
IncSet_activate(inc, INC_FILTER, panel);
break;
case KEY_F(5):
clear();
EnvScreen_scan(this, lines, inc);
EnvScreen_draw(this, inc);
break;
case '\014': // Ctrl+L
clear();
EnvScreen_draw(this, inc);
break;
case 'q':
case 27:
case KEY_F(10):
looping = false;
break;
case KEY_RESIZE:
Panel_resize(panel, COLS, LINES-2);
EnvScreen_draw(this, inc);
break;
default:
Panel_onKey(panel, ch);
}
}
Vector_delete(lines);
IncSet_delete(inc);
}
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