NetBSD/bin/ps/fmt.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <vis.h>
void
fmt_puts(s, leftp)
char *s;
int *leftp;
{
static char *v = 0, *nv;
static int maxlen = 0;
int len;
if (*leftp == 0)
return;
len = strlen(s) * 4 + 1;
if (len > maxlen) {
if (maxlen == 0)
maxlen = getpagesize();
while (len > maxlen)
maxlen *= 2;
nv = realloc(v, maxlen);
if (nv == 0)
return;
v = nv;
}
strvis(v, s, VIS_TAB | VIS_NL | VIS_CSTYLE);
if (*leftp != -1) {
len = strlen(v);
if (len > *leftp) {
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v[*leftp] = '\0';
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*leftp = 0;
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} else
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*leftp -= len;
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}
printf("%s", v);
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}
void
fmt_putc(c, leftp)
int c;
int *leftp;
{
if (*leftp == 0)
return;
if (*leftp != -1)
*leftp -= 1;
putchar(c);
}