procps 010114

2002-02-01 22:47:29 +00:00
commit 03a9b5a30f
90 changed files with 20735 additions and 0 deletions
--- a/proc/pwcache.c
+++ b/proc/pwcache.c
@@ -0,0 +1,74 @@
+/***********************************************************************\
+*   Copyright (C) 1992-1998 by Michael K. Johnson, johnsonm@redhat.com *
+*                                                                      *
+*      This file is placed under the conditions of the GNU Library     *
+*      General Public License, version 2, or any later version.        *
+*      See file ../COPYING for information on distribution conditions. *
+\***********************************************************************/
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <stdlib.h>
+#include <pwd.h>
+#include "proc/procps.h"
+#include <grp.h>
+
+#define	HASHSIZE	16			/* power of 2 */
+#define	HASH(x)		((x) & (HASHSIZE - 1))
+
+#define NAMESIZE	16
+#define NAMELENGTH	"15"
+
+static struct pwbuf {
+    uid_t uid;
+    char name[NAMESIZE];
+    struct pwbuf *next;
+} *pwhash[HASHSIZE];
+
+char *user_from_uid(uid_t uid)
+{
+    struct pwbuf **p;
+    struct passwd *pw;
+
+    p = &pwhash[HASH(uid)];
+    while (*p) {
+	if ((*p)->uid == uid)
+	    return((*p)->name);
+	p = &(*p)->next;
+    }
+    *p = (struct pwbuf *) xmalloc(sizeof(struct pwbuf));
+    (*p)->uid = uid;
+    if ((pw = getpwuid(uid)) == NULL)
+	sprintf((*p)->name, "#%d", uid);
+    else
+	sprintf((*p)->name, "%-." NAMELENGTH "s", pw->pw_name);
+    (*p)->next = NULL;
+    return((*p)->name);
+}
+
+static struct grpbuf {
+    gid_t gid;
+    char name[NAMESIZE];
+    struct grpbuf *next;
+} *grphash[HASHSIZE];
+
+char *group_from_gid(gid_t gid)
+{
+    struct grpbuf **g;
+    struct group *gr;
+
+    g = &grphash[HASH(gid)];
+    while (*g) {
+       if ((*g)->gid == gid)
+           return((*g)->name);
+       g = &(*g)->next;
+    }
+    *g = (struct grpbuf *) malloc(sizeof(struct grpbuf));
+    (*g)->gid = gid;
+    if ((gr = getgrgid(gid)) == NULL)
+       sprintf((*g)->name, "#%d", gid);
+    else
+       sprintf((*g)->name, "%-." NAMELENGTH "s", gr->gr_name);
+    (*g)->next = NULL;
+    return((*g)->name);
+}