[Bug 2012119] Re: imageinfo fails in Ubuntu 23.04 with a "no such file or directory" error

[Sergio Durigan Junior]

Thank you for taking the time to file a bug report.

I did some investigation and noticed that the problem is actually with
imageinfo.

>From imageinfo.c:

  filename = poptGetArg(poptctxt);
  if (poptGetArg(poptctxt) != NULL) {
    fprintf(stderr, "imageinfo: must specify a single filename\n");
    poptFreeContext(poptctxt);
    exit(2);
  }
  poptFreeContext(poptctxt);
  if (!filename) {
    fprintf(stderr, "imageinfo: must specify a filename\n");
    exit(3);
  }

This excerpt is saving a pointer to the the "filename" string that's
found inside "poptctxt", but then it calls "poptFreeContext", which will
invoke "free" on that same string.

** Package changed: popt (Ubuntu) => imageinfo (Ubuntu)

** Changed in: imageinfo (Ubuntu)
       Status: New => Triaged

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https://bugs.launchpad.net/bugs/2012119

Title:
  imageinfo fails in Ubuntu 23.04 with a "no such file or directory"
  error

Status in imageinfo package in Ubuntu:
  Triaged

Bug description:
  imageinfo fails in Ubuntu 23.04 with a "no such file or directory"
  error, eg:

  $ imageinfo --size /usr/share/backgrounds/Lunar-lobster-side_by_Gixo-dark.png 
  imageinfo: unable to open image `��s��U': No such file or directory @ error/blob.c/OpenBlob/2924.

  $ imageinfo --size /usr/share/backgrounds/Copper_Mountain_by_Eduardo_Battaglia.jpg 
  imageinfo: unable to open image `�=�V': No such file or directory @ error/blob.c/OpenBlob/2924.

  The filename it complains is not found seems to be random and changes
  each time. Under WSL, it fails but just says "unable to open image `':
  No such file", ie it doesn't show the random text.

  ProblemType: Bug
  DistroRelease: Ubuntu 23.04
  Package: imageinfo 0.04-0ubuntu12
  ProcVersionSignature: Ubuntu 6.1.0-16.16-generic 6.1.6
  Uname: Linux 6.1.0-16-generic x86_64
  ApportVersion: 2.26.0-0ubuntu2
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Mar 18 16:31:02 2023
  InstallationDate: Installed on 2021-09-28 (536 days ago)
  InstallationMedia: Ubuntu 21.10 "Impish Indri" - Beta amd64 (20210924)
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  SourcePackage: imageinfo
  UpgradeStatus: Upgraded to lunar on 2023-03-16 (1 days ago)

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