Package: libc6-dev Version: 2.13-38+deb7u3 Severity: normal Tags: upstream Dear Maintainer,
* What led up to the situation? I was writing some short simple example code to demonstrate error handling in a UNIX environment. I attempted to purposely produce an error by calling the `time` function with a bad parameter. * What exactly did you do (or not do) that was effective (or ineffective)? See: http://stackoverflow.com/questions/28286290/linux-system-call-time-is-returning-time-t-14-on-error I compiled a program with gcc containing this simple code snippet and ran it: { time_t *ptr = (time_t *) 0xabad1dea; time_t secs = time(ptr); if (secs == ((time_t) -1)) /* Not caught */ exit(EXIT_FAILURE); printf("Number of seconds since the Epoch: %lld\n", secs); printf("It should return ((time_t) -1) on error: %lld\n", (time_t) -1); perror("Error Message:"); secs = *ptr; /* This *does* segfault */ } * What was the outcome of this action? The error condition was not caught. `time` returned -14 when passed an out-of-bounds address and did not set `errno`. * What outcome did you expect instead? The manual (`man 2 time`), POSIX, and the C standard lead me to believe that time should return -1 and set errno to EFAULT (14). The of the function in this version of libc is incorrect. I thought someone should know, since this is sort of a confusing glibc bug. -- System Information: Debian Release: 7.6 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable'), (100, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 3.2.0-4-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages libc6-dev depends on: ii libc-dev-bin 2.13-38+deb7u3 ii libc6 2.13-38+deb7u3 ii linux-libc-dev 3.2.60-1+deb7u3 Versions of packages libc6-dev recommends: ii gcc [c-compiler] 4:4.7.2-1 ii gcc-4.6 [c-compiler] 4.6.3-14 ii gcc-4.7 [c-compiler] 4.7.2-5 Versions of packages libc6-dev suggests: pn glibc-doc <none> ii manpages-dev 3.44-1 -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org