Date: Fri, 9 Jun 2000 08:04:19 -0700 (PDT) From: billh@europe.yahoo-inc.com To: freebsd-gnats-submit@FreeBSD.org Subject: bin/19145: ps not annotatable in 4.0 Message-ID: <20000609150419.061C237C3E1@hub.freebsd.org>
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>Number: 19145 >Category: bin >Synopsis: ps not annotatable in 4.0 >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Jun 09 08:10:00 PDT 2000 >Closed-Date: >Last-Modified: >Originator: Bill Hails >Release: 4.0 >Organization: Yahoo! Europe >Environment: FreeBSD pagegen7.europe.yahoo.com 4.0-YAHOO-20000510 FreeBSD 4.0-YAHOO-20000510 #0: Thu May 11 00:39:30 PDT 2000 root@fb40.yahoo.com:/home/src/sys/compile/YAHOO i386 >Description: the kvm_getargv function returns the original argv passed to the process, ignoring any changes that the process may have made to ARGV, in conflict with the manual page. >How-To-Repeat: create this C program, call it getargv.c, and compile with cc -O -pipe getargv.c -lkvm -o getargv #include <fcntl.h> #include <kvm.h> #include <sys/param.h> #include <sys/user.h> #include <sys/sysctl.h> #include <stdio.h> int main(int argc, char *argv[]) { kvm_t *kd; kd = kvm_open(NULL, "/dev/mem", NULL, O_RDONLY, "kvm_open:"); if (kd != NULL) { int cnt; struct kinfo_proc *p = kvm_getprocs(kd, KERN_PROC_ALL, 0, &cnt); if (p != NULL) { int c; for (c = 0; c < cnt; ++c) { char **res = kvm_getargv(kd, p, 0); if (res) { while (*res) { printf("%s ", *res); res++; } printf("\n"); } else break; ++p; } } else { return(2); } kvm_close(kd); } else { return(1); } return(0); } then compile and run the following (call it argv0.c, "make argv0") int main(int argc, char *argv[]) { argv[0] = "test"; sleep(500); return(0); } in another window run the already compiled getargv as root. When I do this I see that the argv0 process has not had its ARGV[0] changed >Fix: >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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