This repository was archived by the owner on Sep 8, 2020. It is now read-only.
Repository navigation
Expand file tree
/
Copy pathOpenFilesScreen.c
More file actions
153 lines (137 loc) · 4.32 KB
/
Copy pathOpenFilesScreen.c
File metadata and controls
153 lines (137 loc) · 4.32 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
/*
htop - OpenFilesScreen.c
(C) 2005-2006 Hisham H. Muhammad
Released under the GNU GPL, see the COPYING file
in the source distribution for its full text.
*/
#include "OpenFilesScreen.h"
#include "CRT.h"
#include "ProcessList.h"
#include "IncSet.h"
#include "StringUtils.h"
#include "FunctionBar.h"
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <stdbool.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/wait.h>
/*{
#include "InfoScreen.h"
typedef struct OpenFiles_Data_ {
char* data[256];
} OpenFiles_Data;
typedef struct OpenFiles_ProcessData_ {
OpenFiles_Data data;
int error;
struct OpenFiles_FileData_* files;
} OpenFiles_ProcessData;
typedef struct OpenFiles_FileData_ {
OpenFiles_Data data;
struct OpenFiles_FileData_* next;
} OpenFiles_FileData;
typedef struct OpenFilesScreen_ {
InfoScreen super;
pid_t pid;
} OpenFilesScreen;
}*/
InfoScreenClass OpenFilesScreen_class = {
.super = {
.extends = Class(Object),
.delete = OpenFilesScreen_delete
},
.scan = OpenFilesScreen_scan,
.draw = OpenFilesScreen_draw
};
OpenFilesScreen* OpenFilesScreen_new(Process* process) {
OpenFilesScreen* this = xMalloc(sizeof(OpenFilesScreen));
Object_setClass(this, Class(OpenFilesScreen));
if (Process_isThread(process))
this->pid = process->tgid;
else
this->pid = process->pid;
return (OpenFilesScreen*) InfoScreen_init(&this->super, process, NULL, LINES-3, " FD TYPE DEVICE SIZE NODE NAME");
}
void OpenFilesScreen_delete(Object* this) {
free(InfoScreen_done((InfoScreen*)this));
}
void OpenFilesScreen_draw(InfoScreen* this) {
InfoScreen_drawTitled(this, "Snapshot of files open in process %d - %s", ((OpenFilesScreen*)this)->pid, this->process->comm);
}
static OpenFiles_ProcessData* OpenFilesScreen_getProcessData(pid_t pid) {
char command[1025];
xSnprintf(command, 1024, "lsof -P -p %d -F 2> /dev/null", pid);
FILE* fd = popen(command, "r");
OpenFiles_ProcessData* pdata = xCalloc(1, sizeof(OpenFiles_ProcessData));
OpenFiles_FileData* fdata = NULL;
OpenFiles_Data* item = &(pdata->data);
if (!fd) {
pdata->error = 127;
return pdata;
}
for (;;) {
char* line = String_readLine(fd);
if (!line) {
break;
}
unsigned char cmd = line[0];
if (cmd == 'f') {
OpenFiles_FileData* nextFile = xCalloc(1, sizeof(OpenFiles_FileData));
if (fdata == NULL) {
pdata->files = nextFile;
} else {
fdata->next = nextFile;
}
fdata = nextFile;
item = &(fdata->data);
}
item->data[cmd] = xStrdup(line + 1);
free(line);
}
pdata->error = pclose(fd);
return pdata;
}
static inline void OpenFiles_Data_clear(OpenFiles_Data* data) {
for (int i = 0; i < 255; i++)
if (data->data[i])
free(data->data[i]);
}
void OpenFilesScreen_scan(InfoScreen* this) {
Panel* panel = this->display;
int idx = Panel_getSelectedIndex(panel);
Panel_prune(panel);
OpenFiles_ProcessData* pdata = OpenFilesScreen_getProcessData(((OpenFilesScreen*)this)->pid);
if (pdata->error == 127) {
InfoScreen_addLine(this, "Could not execute 'lsof'. Please make sure it is available in your $PATH.");
} else if (pdata->error == 1) {
InfoScreen_addLine(this, "Failed listing open files.");
} else {
OpenFiles_FileData* fdata = pdata->files;
while (fdata) {
char** data = fdata->data.data;
int lenN = data['n'] ? strlen(data['n']) : 0;
int sizeEntry = 5 + 7 + 10 + 10 + 10 + lenN + 5 /*spaces*/ + 1 /*null*/;
char* entry = xMalloc(sizeEntry);
xSnprintf(entry, sizeEntry, "%5.5s %7.7s %10.10s %10.10s %10.10s %s",
data['f'] ? data['f'] : "",
data['t'] ? data['t'] : "",
data['D'] ? data['D'] : "",
data['s'] ? data['s'] : "",
data['i'] ? data['i'] : "",
data['n'] ? data['n'] : "");
InfoScreen_addLine(this, entry);
OpenFiles_Data_clear(&fdata->data);
OpenFiles_FileData* old = fdata;
fdata = fdata->next;
free(old);
}
OpenFiles_Data_clear(&pdata->data);
}
free(pdata);
Vector_insertionSort(this->lines);
Vector_insertionSort(panel->items);
Panel_setSelected(panel, idx);
}