How-To-Repeat: $ tcsh > limits -e ulimit -t unlimited; ulimit -f unlimited; ulimit -d 33554432; ulimit -s 524288; ulimit -c unlimited; ulimit -m unlimited; ulimit -l 64; ulimit -u 8528; ulimit -n 117585; ulimit -b unlimited; ulimit -v unlimited; ulimit -p unlimited; ulimit -w unlimited; ulimit -k unlimited; > sudo mount /proc > limits -e limit cputime unlimited; limit filesize unlimited; limit datasize 33554432; limit stacksize 524288; limit coredumpsize unlimited; limit memoryuse unlimited; limit memorylocked 64; limit maxproc 8528; limit descriptors 117585; limit sbsize unlimited; limit vmemoryuse unlimited; limit pseudoterminals unlimited; limit swapuse unlimited; limit kqueues unlimited;
Stefan Neudorf <BM-2cXppXU4T67w7j6NCir9T1WdzBHmFgBnLj@bitmessage.ch> writes: > if (shell != NULL && stat(shell, &st) != -1) { > struct stat st1; > > mib[0] = CTL_KERN; > mib[1] = KERN_PROC; > mib[2] = KERN_PROC_PATHNAME; > mib[3] = ppid; > len = sizeof(path); > sysctl(mib, 4, path, &len, NULL, 0); > /* $SHELL is actual shell? */ > if (stat(path, &st1) != -1 && memcmp(&st, &st1, sizeof st) == 0) > return getshellbyname(shell); > } > mib[2] = KERN_PROC_PID; > len = sizeof(kp); > sysctl(mib, 4, &kp, &len, NULL, 0); I was a bit too hasty, mib[] may be partially unset. > if (kp.ki_comm != NULL) > return getshellbyname(kp.ki_comm);
Author: kib Date: Thu Oct 31 09:29:37 2013 New Revision: 257430 URL: http://svnweb.freebsd.org/changeset/base/257430 Log: Remove the dependency on procfs. Use sysctl KERN_PROC_PATHNAME and KERN_PROC_PID to obtain the parent process pathname and command, used to determine the calling shell. Submitted by: Stefan Neudorf PR: bin/183484 MFC after: 1 week Modified: head/usr.bin/limits/limits.c Modified: head/usr.bin/limits/limits.c ============================================================================== --- head/usr.bin/limits/limits.c Thu Oct 31 09:20:30 2013 (r257429) +++ head/usr.bin/limits/limits.c Thu Oct 31 09:29:37 2013 (r257430) @@ -30,6 +30,7 @@ __FBSDID("$FreeBSD$"); #include <sys/types.h> #include <sys/stat.h> #include <sys/sysctl.h> +#include <sys/user.h> #include <sys/param.h> #include <stdlib.h> #include <unistd.h> @@ -705,27 +706,32 @@ getshelltype(void) pid_t ppid = getppid(); if (ppid != 1) { - FILE * fp; + struct kinfo_proc kp; struct stat st; - char procdir[MAXPATHLEN], buf[128]; - int l = sprintf(procdir, "/proc/%ld/", (long)ppid); + char path[MAXPATHLEN]; char * shell = getenv("SHELL"); + int mib[4]; + size_t len; + + mib[0] = CTL_KERN; + mib[1] = KERN_PROC; + mib[3] = ppid; if (shell != NULL && stat(shell, &st) != -1) { struct stat st1; - strcpy(procdir+l, "file"); - /* $SHELL is actual shell? */ - if (stat(procdir, &st1) != -1 && memcmp(&st, &st1, sizeof st) == 0) - return getshellbyname(shell); - } - strcpy(procdir+l, "status"); - if (stat(procdir, &st) == 0 && (fp = fopen(procdir, "r")) != NULL) { - char * p = fgets(buf, sizeof buf, fp)==NULL ? NULL : strtok(buf, " \t"); - fclose(fp); - if (p != NULL) - return getshellbyname(p); + mib[2] = KERN_PROC_PATHNAME; + len = sizeof(path); + if (sysctl(mib, 4, path, &len, NULL, 0) != -1) { + /* $SHELL is actual shell? */ + if (stat(path, &st1) != -1 && memcmp(&st, &st1, sizeof st) == 0) + return getshellbyname(shell); + } } + mib[2] = KERN_PROC_PID; + len = sizeof(kp); + if (sysctl(mib, 4, &kp, &len, NULL, 0) != -1) + return getshellbyname(kp.ki_comm); } return SH_SH; } _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscribe@freebsd.org"