svn commit: r185493 - user/peter/kinfo/lib/libutil
Peter Wemm
peter at FreeBSD.org
Sun Nov 30 14:40:15 PST 2008
Author: peter
Date: Sun Nov 30 22:40:14 2008
New Revision: 185493
URL: http://svn.freebsd.org/changeset/base/185493
Log:
Add experimental front ends to the kinfo_vmentry and kinfo_filedesc
sysctls.
Added:
user/peter/kinfo/lib/libutil/kinfo_getfile.c (contents, props changed)
user/peter/kinfo/lib/libutil/kinfo_getvmmap.c (contents, props changed)
Modified:
user/peter/kinfo/lib/libutil/Makefile
user/peter/kinfo/lib/libutil/libutil.h
Modified: user/peter/kinfo/lib/libutil/Makefile
==============================================================================
--- user/peter/kinfo/lib/libutil/Makefile Sun Nov 30 22:40:11 2008 (r185492)
+++ user/peter/kinfo/lib/libutil/Makefile Sun Nov 30 22:40:14 2008 (r185493)
@@ -9,7 +9,8 @@ LIB= util
SHLIB_MAJOR= 7
SRCS= _secure_path.c auth.c expand_number.c flopen.c fparseln.c gr_util.c \
- hexdump.c humanize_number.c kld.c login.c login_auth.c login_cap.c \
+ hexdump.c humanize_number.c kinfo_getfile.c kinfo_getvmmap.c kld.c \
+ login.c login_auth.c login_cap.c \
login_class.c login_crypt.c login_ok.c login_times.c login_tty.c \
logout.c logwtmp.c pidfile.c property.c pty.c pw_util.c realhostname.c \
stub.c trimdomain.c uucplock.c
Added: user/peter/kinfo/lib/libutil/kinfo_getfile.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ user/peter/kinfo/lib/libutil/kinfo_getfile.c Sun Nov 30 22:40:14 2008 (r185493)
@@ -0,0 +1,72 @@
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <sys/user.h>
+#include <sys/sysctl.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "libutil.h"
+
+struct kinfo_file *
+kinfo_getfile(pid_t pid, int *cntp)
+{
+ int mib[4];
+ int error;
+ int cnt;
+ size_t len;
+ char *buf, *bp, *eb;
+ struct kinfo_file *kif, *kp, *kf;
+
+ len = 0;
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_PROC;
+ mib[2] = KERN_PROC_FILEDESC;
+ mib[3] = pid;
+
+ error = sysctl(mib, 4, NULL, &len, NULL, 0);
+ if (error)
+ return (0);
+ len = len * 4 / 3;
+ buf = malloc(len);
+ if (buf == NULL)
+ return (0);
+ error = sysctl(mib, 4, buf, &len, NULL, 0);
+ if (error) {
+ free(buf);
+ return (0);
+ }
+ /* Pass 1: count items */
+ cnt = 0;
+ bp = buf;
+ eb = buf + len;
+ while (bp < eb) {
+ kf = (struct kinfo_file *)bp;
+ bp += kf->kf_structsize;
+ cnt++;
+ }
+
+ kif = calloc(cnt, sizeof(*kif));
+ if (kif == NULL) {
+ free(buf);
+ return (0);
+ }
+ bp = buf;
+ eb = buf + len;
+ kp = kif;
+ /* Pass 2: unpack */
+ while (bp < eb) {
+ kf = (struct kinfo_file *)bp;
+ /* Copy/expand into pre-zeroed buffer */
+ memcpy(kp, kf, kf->kf_structsize);
+ /* Advance to next packed record */
+ bp += kf->kf_structsize;
+ /* Set field size to fixed length, advance */
+ kp->kf_structsize = sizeof(*kp);
+ kp++;
+ }
+ free(buf);
+ *cntp = cnt;
+ return (kif); /* Caller must free() return value */
+}
Added: user/peter/kinfo/lib/libutil/kinfo_getvmmap.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ user/peter/kinfo/lib/libutil/kinfo_getvmmap.c Sun Nov 30 22:40:14 2008 (r185493)
@@ -0,0 +1,72 @@
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <sys/user.h>
+#include <sys/sysctl.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "libutil.h"
+
+struct kinfo_vmentry *
+kinfo_getvmmap(pid_t pid, int *cntp)
+{
+ int mib[4];
+ int error;
+ int cnt;
+ size_t len;
+ char *buf, *bp, *eb;
+ struct kinfo_vmentry *kiv, *kp, *kv;
+
+ len = 0;
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_PROC;
+ mib[2] = KERN_PROC_VMMAP;
+ mib[3] = pid;
+
+ error = sysctl(mib, 4, NULL, &len, NULL, 0);
+ if (error)
+ return (0);
+ len = len * 4 / 3;
+ buf = malloc(len);
+ if (buf == NULL)
+ return (0);
+ error = sysctl(mib, 4, buf, &len, NULL, 0);
+ if (error) {
+ free(buf);
+ return (0);
+ }
+ /* Pass 1: count items */
+ cnt = 0;
+ bp = buf;
+ eb = buf + len;
+ while (bp < eb) {
+ kv = (struct kinfo_vmentry *)bp;
+ bp += kv->kve_structsize;
+ cnt++;
+ }
+
+ kiv = calloc(cnt, sizeof(*kiv));
+ if (kiv == NULL) {
+ free(buf);
+ return (0);
+ }
+ bp = buf;
+ eb = buf + len;
+ kp = kiv;
+ /* Pass 2: unpack */
+ while (bp < eb) {
+ kv = (struct kinfo_vmentry *)bp;
+ /* Copy/expand into pre-zeroed buffer */
+ memcpy(kp, kv, kv->kve_structsize);
+ /* Advance to next packed record */
+ bp += kv->kve_structsize;
+ /* Set field size to fixed length, advance */
+ kp->kve_structsize = sizeof(*kp);
+ kp++;
+ }
+ free(buf);
+ *cntp = cnt;
+ return (kiv); /* Caller must free() return value */
+}
Modified: user/peter/kinfo/lib/libutil/libutil.h
==============================================================================
--- user/peter/kinfo/lib/libutil/libutil.h Sun Nov 30 22:40:11 2008 (r185492)
+++ user/peter/kinfo/lib/libutil/libutil.h Sun Nov 30 22:40:14 2008 (r185493)
@@ -64,6 +64,8 @@ struct termios;
struct winsize;
struct utmp;
struct in_addr;
+struct kinfo_file;
+struct kinfo_vmentry;
__BEGIN_DECLS
void clean_environment(const char * const *_white,
@@ -100,6 +102,10 @@ int realhostname_sa(char *host, size_t h
int kld_isloaded(const char *name);
int kld_load(const char *name);
+struct kinfo_file *
+ kinfo_getfile(pid_t _pid, int *_cntp);
+struct kinfo_vmentry *
+ kinfo_getvmmap(pid_t _pid, int *_cntp);
#ifdef _STDIO_H_ /* avoid adding new includes */
char *fparseln(FILE *, size_t *, size_t *, const char[3], int);
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