diff options
Diffstat (limited to 'sbin/sysctl/sysctl.c')
| -rw-r--r-- | sbin/sysctl/sysctl.c | 135 |
1 files changed, 133 insertions, 2 deletions
diff --git a/sbin/sysctl/sysctl.c b/sbin/sysctl/sysctl.c index 9b7c3095ed9..0cf34004c74 100644 --- a/sbin/sysctl/sysctl.c +++ b/sbin/sysctl/sysctl.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sysctl.c,v 1.95 2003/06/11 06:22:15 deraadt Exp $ */ +/* $OpenBSD: sysctl.c,v 1.96 2003/08/21 18:56:07 tedu Exp $ */ /* $NetBSD: sysctl.c,v 1.9 1995/09/30 07:12:50 thorpej Exp $ */ /* @@ -40,7 +40,7 @@ static const char copyright[] = #if 0 static const char sccsid[] = "@(#)sysctl.c 8.5 (Berkeley) 5/9/95"; #else -static char *rcsid = "$OpenBSD: sysctl.c,v 1.95 2003/06/11 06:22:15 deraadt Exp $"; +static char *rcsid = "$OpenBSD: sysctl.c,v 1.96 2003/08/21 18:56:07 tedu Exp $"; #endif #endif /* not lint */ @@ -206,6 +206,7 @@ int sysctl_seminfo(char *, char **, int *, int, int *); int sysctl_shminfo(char *, char **, int *, int, int *); int sysctl_watchdog(char *, char **, int *, int, int *); int sysctl_sensors(char *, char **, int *, int, int *); +int sysctl_emul(char *, char *, int); #ifdef CPU_CHIPSET int sysctl_chipset(char *, char **, int *, int, int *); #endif @@ -430,6 +431,9 @@ parse(char *string, int flags) if (len < 0) return; break; + case KERN_EMUL: + sysctl_emul(string, newval, flags); + return; } break; @@ -1964,6 +1968,133 @@ sysctl_sensors(char *string, char **bufpp, int mib[], int flags, int *typep) return (3); } +char **emul_names; +int emul_num; +void emul_init(void); + +int +sysctl_emul(char *string, char *newval, int flags) +{ + int mib[4], enabled, i, old, found = 0; + char *head, *target; + size_t len; + + emul_init(); + + mib[0] = CTL_KERN; + mib[1] = KERN_EMUL; + mib[3] = KERN_EMUL_ENABLED; + head = "kern.emul."; + + if (aflag || strcmp(string, "kern.emul") == 0) { + if (strcmp(string, "kern.emul") == 0 && wflag) { + warnx("%s: specification is incomplete", string); + return (1); + } + if (nflag) + printf("%d\n", emul_num); + else + printf("%snemuls = %d\n", head, emul_num); + for (i = 0; i < emul_num; i++) { + mib[2] = i + 1; + len = sizeof(int); + if (sysctl(mib, 4, &enabled, &len, NULL, 0) == -1) { + warn("%s", string); + continue; + } + if (nflag) + printf("%d\n", enabled); + else + printf("%s%s = %d\n", head, emul_names[i], + enabled); + } + return (0); + } + /* User specified a third level name */ + target = strrchr(string, '.'); + target++; + if (strcmp(string, "nemuls") == 0) { + if (newval) { + warnx("Operation not permitted"); + return (1); + } + if (nflag) + printf("%d\n", emul_num); + else + printf("%snemuls = %d\n", head, emul_num); + return (0); + } + for (i = 0; i < emul_num; i++) { + if (strcmp(target, emul_names[i])) + continue; + found = 1; + mib[2] = i + 1; + len = sizeof(int); + if (newval) { + enabled = atoi(newval); + if (sysctl(mib, 4, &old, &len, &enabled, len) == -1) { + warn("%s", string); + continue; + } + if (nflag) + printf("%d\n", enabled); + else + printf("%s%s: %d -> %d\n", head, target, old, + enabled); + } else { + if (sysctl(mib, 4, &enabled, &len, NULL, 0) == -1) { + warn("%s", string); + continue; + } + if (nflag) + printf("%d\n", enabled); + else + printf("%s%s = %d\n", head, target, enabled); + } + } + if (!found) + warnx("third level name %s in kern.emul is invalid", + string); + return (0); + + +} + +void +emul_init(void) +{ + static int done; + char string[16]; + int mib[4], i; + size_t len; + + if (done) + return; + done = 1; + + mib[0] = CTL_KERN; + mib[1] = KERN_EMUL; + mib[2] = KERN_EMUL_NUM; + len = sizeof(int); + if (sysctl(mib, 3, &emul_num, &len, NULL, 0) == -1) + return; + + emul_names = malloc(emul_num * sizeof(char *)); + if (emul_names == NULL) { + warn("emul_init"); + return; + } + + for (i = 0; i < emul_num; i++) { + mib[2] = i + 1; + mib[3] = 0; + len = sizeof(string); + if (sysctl(mib, 4, string, &len, NULL, 0) == -1) + break; + emul_names[i] = strdup(string); + } +} + /* * Scan a list of names searching for a particular name. */ |