[Bug libc/17111] New: STRTOL(3) unexpected behavior when use '`' before number (i.e."```1") as argument of main ()

[sergey.churayev.76 at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17111

            Bug ID: 17111
           Summary: STRTOL(3) unexpected behavior when use '`' before
                    number (i.e."```1") as argument of main ()
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: unassigned at sourceware dot org
          Reporter: sergey.churayev.76 at gmail dot com
                CC: drepper.fsp at gmail dot com

Hi,

This is Linux Programmer's Manual STRTOL(3) here:

http://man7.org/linux/man-pages/man3/strtol.3.html

--------------------------------------------------------------------
Program source

       #include <stdlib.h>
       #include <limits.h>
       #include <stdio.h>
       #include <errno.h>

       int
       main(int argc, char *argv[])
       {
           int base;
           char *endptr, *str;
           long val;

           if (argc < 2) {
               fprintf(stderr, "Usage: %s str [base]\n", argv[0]);
               exit(EXIT_FAILURE);
           }

           str = argv[1];
           base = (argc > 2) ? atoi(argv[2]) : 10;

           errno = 0;    /* To distinguish success/failure after call */
           val = strtol(str, &endptr, base);

           /* Check for various possible errors */

           if ((errno == ERANGE && (val == LONG_MAX || val == LONG_MIN))
                   || (errno != 0 && val == 0)) {
               perror("strtol");
               exit(EXIT_FAILURE);
           }

           if (endptr == str) {
               fprintf(stderr, "No digits were found\n");
               exit(EXIT_FAILURE);
           }

           /* If we got here, strtol() successfully parsed a number */

           printf("strtol() returned %ld\n", val);

           if (*endptr != '\0')        /* Not necessarily an error... */
               printf("Further characters after number: %s\n", endptr);

           exit(EXIT_SUCCESS);
       }
--------------------------------------------------------------------

I use name "strtol_test" to run and use "`````1" as argument of main.

I see next problem:

%% strtol_test ````1
Segmentation fault
Segmentation fault
No digits were found

%%

Any ideas?

Best regards,
Serg.

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