Public bug reported:
The function sscanf() fails to read the correct value of a long integer.
The C code below shows the bug. Just put it in a file and compile using
gcc.
//-------------------------
#include <stdlib.h>
#include <stdio.h>
int main(int argc, char ** argv)
{
char buf1[1024];
char buf2[32];
unsigned long long int *u64=(unsigned long long int *)&buf2;
char *buffer=buf1;
printf("sscanf() bug???\n");
sprintf(buffer,"%llu \n",0xf0debc9a78563412LL);
printf("content of buffer: <<<%s>>>\n",buffer);
sscanf(buffer,"%lld",u64);
printf("content of u64: 0x%llx\n",*u64);
printf("content should be: 0xf0debc9a78563412\n");
exit(0);
}
//-------------------------
Regards.
Ric.
ProblemType: Bug
Architecture: i386
Dependencies:
libgcc1 1:4.3.3-5ubuntu4
gcc-4.3-base 4.3.3-5ubuntu4
findutils 4.4.0-2ubuntu4
libc6 2.9-4ubuntu6
DistroRelease: Ubuntu 9.04
NonfreeKernelModules: nvidia
Package: libc6 2.9-4ubuntu6
ProcEnviron:
PATH=(custom, user)
LANG=pt_BR.UTF-8
SHELL=/bin/bash
SourcePackage: glibc
Uname: Linux 2.6.28-13-generic i686
** Affects: glibc (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386
--
Bug in sscanf() function reading 64 bits integer
https://bugs.launchpad.net/bugs/392681
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