Package: libc6
Version: 2.3.6-15
Severity: normal
Hello,
According to section 15.2 of glibc-doc ("Pipe to a Subprocess") the
function popen() should return NULL if it failed to open the pipe.
However, the function is returning a non NULL pointer, as can be seen
by running the program below:
--------------------------------------
/* testpopen.c */
#include <stdio.h>
int main(){
FILE *F = NULL;
printf("Before: F = %p\n", F);
F = popen("nothing", "w");
printf("After: F = %p\n", F);
pclose(F);
return 0;
}
--------------------------------------
$ gcc testpopen.c
$ ./a.out
Before: F = (nil)
After: F = 0x501010
sh: nothing: command not found
Thanks,
-- System Information:
Debian Release: testing/unstable
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.15-1-amd64-k8
Locale: LANG=pt_BR.UTF-8, LC_CTYPE=pt_BR.UTF-8 (charmap=UTF-8)
Versions of packages libc6 depends on:
ii tzdata 2006g-2 Time Zone and Daylight Saving Time
libc6 recommends no packages.
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