38 lines
735 B
C
38 lines
735 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <pwd.h>
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#include "ps.h"
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#define HASHSIZE 16 /* power of 2 */
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#define HASH(x) ((x) & (HASHSIZE - 1))
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static struct pwbuf {
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int uid;
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char name[12];
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struct pwbuf *next;
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} *pwhash[HASHSIZE];
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char *user_from_uid(int uid)
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{
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struct pwbuf **p;
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struct passwd *pw;
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p = &pwhash[HASH(uid)];
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while (*p) {
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if ((*p)->uid == uid)
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return((*p)->name);
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p = &(*p)->next;
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}
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*p = (struct pwbuf *) xmalloc(sizeof(struct pwbuf));
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(*p)->uid = uid;
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if ((pw = getpwuid(uid)) == NULL)
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sprintf((*p)->name, "#%d", uid);
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else
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sprintf((*p)->name, "%-.8s", pw->pw_name);
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(*p)->next = NULL;
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return((*p)->name);
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}
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void bad_user_access_length() { }
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