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/* This file is part of the Project Athena Zephyr Notification System.
* It contains functions for general use within the Zephyr server.
*
* Created by: John T. Kohl
*
* $Source: /mit/zephyr/repository/zephyr/server/common.c,v $
* $Author: ghudson $
*
* Copyright (c) 1987 by the Massachusetts Institute of Technology.
* For copying and distribution information, see the file
* "mit-copyright.h".
*/
#include <zephyr/mit-copyright.h>
#include "zserver.h"
#ifndef lint
#ifndef SABER
static const char rcsid_common_c[] =
"$Id: common.c,v 1.13 1995/07/07 22:11:56 ghudson Exp $";
#endif /* SABER */
#endif /* lint */
/* common routines for the server */
/* copy a string into a newly allocated area */
char *
strsave (sp)
const char *sp;
{
char *ret;
ret = (char *) malloc(strlen(sp) + 1);
if (!ret) {
syslog(LOG_CRIT, "no mem strdup'ing");
abort();
}
strcpy(ret, sp);
return ret;
}
/* The "& 0x5f" provides case-insensitivity for ASCII. */
unsigned long
hash(string)
const char *string;
{
unsigned long hval = 0;
char cp;
while (1) {
cp = *string++;
if (!cp)
break;
hval += cp & 0x5f;
cp = *string++;
if (!cp)
break;
hval += (cp & 0x5f) * (3 + (1 << 16));
cp = *string++;
if (!cp)
break;
hval += (cp & 0x5f) * (1 + (1 << 8));
cp = *string++;
if (!cp)
break;
hval += (cp & 0x5f) * (1 + (1 << 12));
cp = *string++;
if (!cp)
break;
hval += (cp & 0x5f) * (1 + (1 << 4));
hval += ((long) hval) >> 18;
}
hval &= 0x7fffffff;
return hval;
}
/* Output a name, replacing newlines with \n and single quotes with \q. */
void subscr_quote(p, fp)
char *p;
FILE *fp;
{
for (; *p; p++) {
if (*p == '\'') {
putc('\\', fp);
putc('q', fp);
} else if (*p == '\n') {
putc('\\', fp);
putc('n', fp);
} else {
putc(*p, fp);
}
}
}
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