[Bug libc/11039] getopt mishandles optstring of "+:"

[Bug libc/11039] getopt mishandles optstring of "+:"

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=11039

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |security-

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[Bug libc/11039] getopt mishandles optstring of "+:"

[drepper at redhat dot com]

------- Additional Comments From drepper at redhat dot com  2010-04-08 00:56 -------
Fixed in git.

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           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


http://sourceware.org/bugzilla/show_bug.cgi?id=11039

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[Bug libc/11039] getopt mishandles optstring of "+:"

[ebb9 at byu dot net]

------- Additional Comments From ebb9 at byu dot net  2009-12-02 22:17 -------
Another related problem, which is also fixed by the previously posted patch:

$ cat foo.c
#include <unistd.h>
#include <stdio.h>
int
main (int argc, char **argv)
{
  int i, c;
  for (i = 0; i <= 1; i++)
    {
      optind = i;
      c = getopt (argc, argv, "+a");
      if (c == -1)
        printf ("got -1, optind %d\n", optind);
      else
        printf ("got %c, optind %d\n", c, optind);
    }
  return 0;
}
$ ./foo -+
foo: invalid option -- '+'
got ?, optind 2
got +, optind 2

Expected behavior is for the error message to occur twice on stderr, with both
passes returning '?'.


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[Bug libc/11039] getopt mishandles optstring of "+:"

[ebb9 at byu dot net]

------- Additional Comments From ebb9 at byu dot net  2009-12-01 16:32 -------
Created an attachment (id=4435)
 --> (http://sourceware.org/bugzilla/attachment.cgi?id=4435&action=view)
patch

2009-12-01  Eric Blake	<ebb9@byu.net>

	* posix/getopt.c (_getopt_internal_r): Skip optional - or + before
	checking lead byte of optstring for :.


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