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/* include readline */
#include "unp.h"
/* PAINFULLY SLOW VERSION -- example only */
ssize_t
readline(int fd, void *vptr, size_t maxlen)
{
ssize_t n, rc;
char c, *ptr;
ptr = vptr;
for (n = 1; n < maxlen; n++) {
again:
if ( (rc = read(fd, &c, 1)) == 1) {
*ptr++ = c;
if (c == '\n')
break; /* newline is stored, like fgets() */
} else if (rc == 0) {
*ptr = 0;
return(n - 1); /* EOF, n - 1 bytes were read */
} else {
if (errno == EINTR)
goto again;
return(-1); /* error, errno set by read() */
}
}
*ptr = 0; /* null terminate like fgets() */
return(n);
}
/* end readline */
ssize_t
Readline(int fd, void *ptr, size_t maxlen)
{
ssize_t n;
if ( (n = readline(fd, ptr, maxlen)) < 0)
err_sys("readline error");
return(n);
}