155 lines
3.9 KiB
C
155 lines
3.9 KiB
C
#include "linux.h"
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struct task get_task_details(gint pid)
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{
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FILE *task_file;
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FILE *cmdline_file;
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gchar dummy[255];
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gchar buffer_status[256];
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struct task task;
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struct passwd *passwdp;
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struct stat status;
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gchar filename[255];
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gchar cmdline_filename[255];
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sprintf(filename, "/proc/%i/stat", pid);
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sprintf(cmdline_filename, "/proc/%i/cmdline", pid);
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stat(filename, &status);
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//memset(&task, 0, sizeof(struct task));
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task.pid = -1;
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task.checked = FALSE;
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if((task_file = fopen(filename,"r")) != NULL)
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{
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while(fgets(buffer_status, sizeof(buffer_status), task_file) != NULL)
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{
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gint utime = 0;
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gint stime = 0;
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sscanf(buffer_status, "%i (%s %1s %i %i %i %i %i %s %s %s %s %s %i %i %i %i %i %i %i %i %i %i %i %s %s %s %i %s %s %s %s %s %s %s %s %s %s %i %s %s",
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&task.pid, // processid
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&task.name, // processname
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&task.state, // processstate
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&task.ppid, // parentid
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&dummy, // processs groupid
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&dummy, // session id
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&dummy, // tty id
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&dummy, // tpgid: The process group ID of the process running on tty of the process
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&dummy, // flags
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&dummy, // minflt minor faults the process has maid
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&dummy, // cminflt
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&dummy, // majflt
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&dummy, // cmajflt
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&utime, // utime the number of jiffies that this process has scheduled in user mode
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&stime, // stime " kernel mode
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&dummy, // cutime " waited for children in user
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&dummy, // cstime " kernel mode
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&dummy, // priority (nice value + fifteen)
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&dummy, // nice range from 19 to -19
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&dummy, // hardcoded 0
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&dummy, // itrealvalue time in jiffies to next SIGALRM send to this process
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&dummy, // starttime jiffies the process startet after system boot
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&task.size, // vsize in bytes
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&task.rss, // rss
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&dummy, // rlim limit in bytes for rss
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&dummy, // startcode
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&dummy, // endcode
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&dummy, // startstack
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&dummy, // kstkesp value of esp (stack pointer)
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&dummy, // kstkeip value of EIP (instruction pointer)
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&dummy, // signal. bitmap of pending signals
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&dummy, // blocked: bitmap of blocked signals
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&dummy, // sigignore: bitmap of ignored signals
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&dummy, // sigcatch: bitmap of catched signals
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&dummy, // wchan
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&dummy, // nswap
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&dummy, // cnswap
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&dummy, // exit_signal
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&dummy, // CPU number last executed on
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&dummy,
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&dummy
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);
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task.time = stime + utime;
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task.old_time = task.time;
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task.time_percentage = 0;
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}
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task.uid = status.st_uid;
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passwdp = getpwuid(task.uid);
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if(passwdp != NULL && passwdp->pw_name != NULL)
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g_strlcpy(task.uname, passwdp->pw_name, sizeof task.uname);
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}
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if(task_file != NULL)
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fclose(task_file);
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if((cmdline_file = fopen(cmdline_filename,"r")) != NULL)
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{
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gchar dummy[255];
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strcpy(&dummy, "");
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fscanf(cmdline_file, "%255s", &dummy);
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if(strcmp(dummy, "") != 0)
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{
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if(g_strrstr(dummy,"/") != NULL)
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g_strlcpy(task.name, g_strrstr(dummy,"/")+1, 255);
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else
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g_strlcpy(task.name, dummy, 255);
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// workaround for cmd-line entries with leading "-"
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if(g_str_has_prefix(task.name, "-"))
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sscanf(task.name, "-%255s", task.name);
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}
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}
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if(cmdline_file != NULL)
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fclose(cmdline_file);
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if(g_str_has_suffix(task.name, ")"))
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*g_strrstr(task.name, ")") = '\0';
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return task;
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}
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GArray *get_task_list()
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{
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DIR *dir;
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struct dirent *dir_entry;
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GArray *task_list;
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task_list = g_array_new (FALSE, FALSE, sizeof (struct task));
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if((dir = opendir("/proc/")) == NULL)
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{
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fprintf(stderr, "Error: couldn't load the /proc directory\n");
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return NULL;
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}
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gint count = 0;
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while((dir_entry = readdir(dir)) != NULL)
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{
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if(atoi(dir_entry->d_name) != 0)
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{
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struct task task = get_task_details(atoi(dir_entry->d_name));
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if(task.pid != -1)
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g_array_append_val(task_list, task);
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}
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count++;
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}
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closedir(dir);
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return task_list;
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}
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