125 lines
2.6 KiB
C
125 lines
2.6 KiB
C
/* Copyright (c) 1984 AT&T */
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/* All Rights Reserved */
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
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/* The copyright notice above does not evidence any */
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/* actual or intended publication of such source code. */
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#ifndef lint
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static char sccsid[] = "@(#)funcs.c 1.1 94/10/31 SMI"; /* from S5R3 1.2 */
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#endif
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#include <sys/types.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <syslog.h>
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#include <errno.h>
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#include "cron.h"
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/*****************/
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FILE *fopen_configfile(name, mode, pathname)
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/*****************/
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char *name, *mode, *pathname;
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{
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register FILE *fp;
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/*
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* Try to open a configuration file; look first in PRIVCONFIGDIR
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* (the per-machine configuration directory).
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*/
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(void) strcat(strcat(strcpy(pathname,PRIVCONFIGDIR),"/"),name);
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errno = 0;
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if ((fp = fopen(pathname, mode)) != NULL)
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return (fp);
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if (errno != ENOENT)
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return (NULL); /* it does exist, you just can't open it */
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/*
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* Now look in COMCONFIGDIR (the shared configuration directory).
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*/
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(void) strcat(strcat(strcpy(pathname,COMCONFIGDIR),"/"),name);
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return (fopen(pathname, mode));
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}
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/*****************/
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time_t num(ptr)
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/*****************/
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char **ptr;
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{
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time_t n=0;
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while (isdigit(**ptr)) {
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n = n*10 + (**ptr - '0');
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*ptr += 1; }
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return(n);
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}
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int dom[12]={31,28,31,30,31,30,31,31,30,31,30,31};
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/*****************/
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days_btwn(m1,d1,y1,m2,d2,y2)
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/*****************/
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int m1,d1,y1,m2,d2,y2;
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{
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/* calculate the number of "full" days in between m1/d1/y1 and m2/d2/y2.
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NOTE: there should not be more than a year separation in the dates.
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also, m should be in 0 to 11, and d should be in 1 to 31. */
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int days,m;
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if ((m1==m2) && (d1==d2) && (y1==y2)) return(0);
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if ((m1==m2) && (d1<d2)) return(d2-d1-1);
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/* the remaining dates are on different months */
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days = (days_in_mon(m1,y1)-d1) + (d2-1);
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m = (m1 + 1) % 12;
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while (m != m2) {
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if (m==0) y1++;
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days += days_in_mon(m,y1);
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m = (m + 1) % 12; }
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return(days);
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}
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/*****************/
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days_in_mon(m,y)
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/*****************/
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int m,y;
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{
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/* returns the number of days in month m of year y
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NOTE: m should be in the range 0 to 11 */
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return( dom[m] + (((m==1)&&((y%4)==0)) ? 1:0 ));
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}
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/*****************/
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char *xmalloc(size)
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/*****************/
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int size;
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{
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char *p;
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char *malloc();
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if((p=malloc(size)) == NULL) {
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syslog(LOG_ERR,"Can't allocate %d bytes of space",size);
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exit(55);
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}
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return p;
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}
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/*****************/
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char *errmsg(errnum)
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/*****************/
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int errnum;
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{
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extern int sys_nerr;
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extern char *sys_errlist[];
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static char msgbuf[6+10+1];
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if (errnum < 0 || errnum >= sys_nerr) {
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(void) sprintf(msgbuf, "Error %d", errnum);
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return (msgbuf);
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} else
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return (sys_errlist[errnum]);
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}
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