Extracting permission of processes from the proc directory

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











up vote
0
down vote

favorite












I am trying to write a program in C where I have to print out the pid of processes in the proc directory that have read and write permissions. I've opened the proc directory and read the processes inside - I am only looking at the numeric directories. I know that I will have to open each numeric directory and open its maps file. How can I extract the permissions of each processes? The code below contains my attempt:



sprintf(buf, "/proc/%d/maps", tgid->d_name); 
file = fopen(buf, "r");

while (fgets(buf, sizeof(buf), file))
sscanf(buf, "%x-%x %4c %x %x:%x %lu", &from, &to, flags, &offset, &major, &minor, &ino);


fclose(file);
if (flags[0] == 'r' && flags[1] == 'w')
printf("%dn", tgid->d_name);









share









New contributor




user9042207 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.























    up vote
    0
    down vote

    favorite












    I am trying to write a program in C where I have to print out the pid of processes in the proc directory that have read and write permissions. I've opened the proc directory and read the processes inside - I am only looking at the numeric directories. I know that I will have to open each numeric directory and open its maps file. How can I extract the permissions of each processes? The code below contains my attempt:



    sprintf(buf, "/proc/%d/maps", tgid->d_name); 
    file = fopen(buf, "r");

    while (fgets(buf, sizeof(buf), file))
    sscanf(buf, "%x-%x %4c %x %x:%x %lu", &from, &to, flags, &offset, &major, &minor, &ino);


    fclose(file);
    if (flags[0] == 'r' && flags[1] == 'w')
    printf("%dn", tgid->d_name);









    share









    New contributor




    user9042207 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.





















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I am trying to write a program in C where I have to print out the pid of processes in the proc directory that have read and write permissions. I've opened the proc directory and read the processes inside - I am only looking at the numeric directories. I know that I will have to open each numeric directory and open its maps file. How can I extract the permissions of each processes? The code below contains my attempt:



      sprintf(buf, "/proc/%d/maps", tgid->d_name); 
      file = fopen(buf, "r");

      while (fgets(buf, sizeof(buf), file))
      sscanf(buf, "%x-%x %4c %x %x:%x %lu", &from, &to, flags, &offset, &major, &minor, &ino);


      fclose(file);
      if (flags[0] == 'r' && flags[1] == 'w')
      printf("%dn", tgid->d_name);









      share









      New contributor




      user9042207 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      I am trying to write a program in C where I have to print out the pid of processes in the proc directory that have read and write permissions. I've opened the proc directory and read the processes inside - I am only looking at the numeric directories. I know that I will have to open each numeric directory and open its maps file. How can I extract the permissions of each processes? The code below contains my attempt:



      sprintf(buf, "/proc/%d/maps", tgid->d_name); 
      file = fopen(buf, "r");

      while (fgets(buf, sizeof(buf), file))
      sscanf(buf, "%x-%x %4c %x %x:%x %lu", &from, &to, flags, &offset, &major, &minor, &ino);


      fclose(file);
      if (flags[0] == 'r' && flags[1] == 'w')
      printf("%dn", tgid->d_name);







      files permissions c proc





      share









      New contributor




      user9042207 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share









      New contributor




      user9042207 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








      share



      share








      edited 1 min ago





















      New contributor




      user9042207 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 7 mins ago









      user9042207

      1




      1




      New contributor




      user9042207 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.





      New contributor





      user9042207 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      user9042207 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.

























          active

          oldest

          votes











          Your Answer








          StackExchange.ready(function()
          var channelOptions =
          tags: "".split(" "),
          id: "106"
          ;
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function()
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled)
          StackExchange.using("snippets", function()
          createEditor();
          );

          else
          createEditor();

          );

          function createEditor()
          StackExchange.prepareEditor(
          heartbeatType: 'answer',
          convertImagesToLinks: false,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: null,
          bindNavPrevention: true,
          postfix: "",
          imageUploader:
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          ,
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          );



          );






          user9042207 is a new contributor. Be nice, and check out our Code of Conduct.









           

          draft saved


          draft discarded


















          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f479809%2fextracting-permission-of-processes-from-the-proc-directory%23new-answer', 'question_page');

          );

          Post as a guest



































          active

          oldest

          votes













          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          user9042207 is a new contributor. Be nice, and check out our Code of Conduct.









           

          draft saved


          draft discarded


















          user9042207 is a new contributor. Be nice, and check out our Code of Conduct.












          user9042207 is a new contributor. Be nice, and check out our Code of Conduct.











          user9042207 is a new contributor. Be nice, and check out our Code of Conduct.













           


          draft saved


          draft discarded














          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f479809%2fextracting-permission-of-processes-from-the-proc-directory%23new-answer', 'question_page');

          );

          Post as a guest













































































          Popular posts from this blog

          How to check contact read email or not when send email to Individual?

          Displaying single band from multi-band raster using QGIS

          How many registers does an x86_64 CPU actually have?