mirror of
https://git.notmuchmail.org/git/notmuch
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62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
/*
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** Copyright 2001 Double Precision, Inc.
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** See COPYING for distribution information.
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "numlib.h"
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#include <string.h>
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static const char rcsid[]="$Id: strsize.c,v 1.2 2003/01/05 04:01:17 mrsam Exp $";
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static void cat_n(char *buf, unsigned long n)
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{
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char bb[NUMBUFSIZE+1];
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char *p=bb+sizeof(bb)-1;
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*p=0;
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do
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{
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*--p = "0123456789"[n % 10];
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n=n/10;
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} while (n);
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strcat(buf, p);
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}
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char *libmail_str_sizekb(unsigned long n, char *sizebuf)
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{
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/* If size is less than 1K bytes, display it as 0.xK */
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if (n < 1024)
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{
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strcpy(sizebuf, "0.");
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cat_n(sizebuf, (int)(10 * n / 1024 ));
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strcat(sizebuf, "K");
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}
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/* If size is less than 1 meg, display is as xK */
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else if (n < 1024 * 1024)
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{
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*sizebuf=0;
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cat_n(sizebuf, (unsigned long)(n+512)/1024);
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strcat(sizebuf, "K");
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}
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/* Otherwise, display in megabytes */
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else
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{
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unsigned long nm=(double)n / (1024.0 * 1024.0) * 10;
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*sizebuf=0;
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cat_n( sizebuf, nm / 10);
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strcat(sizebuf, ".");
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cat_n( sizebuf, nm % 10);
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strcat(sizebuf, "M");
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}
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return (sizebuf);
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}
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