#include <config.h>
#include <sys/types.h>
#include <stdio.h>
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# ifdef HAVE_STDLIB_H
# include <stdlib.h>
# endif
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <limits.h>
#include "compat.h"
#include "alloc.h"
#ifndef LINE_MAX
# define LINE_MAX 2048
#endif
#ifdef HAVE_FGETLN
ssize_t
getline(bufp, bufsizep, fp)
char **bufp;
size_t *bufsizep;
FILE *fp;
{
char *buf;
size_t bufsize;
size_t len;
buf = fgetln(fp, &len);
if (buf) {
bufsize = *bufp ? *bufsizep : 0;
if (bufsize < len + 1) {
bufsize = len + 1;
*bufp = erealloc(*bufp, bufsize);
*bufsizep = bufsize;
}
memcpy(*bufp, buf, len);
(*bufp)[len] = '\0';
}
return(buf ? len : -1);
}
#else
ssize_t
getline(bufp, bufsizep, fp)
char **bufp;
size_t *bufsizep;
FILE *fp;
{
char *buf;
size_t bufsize;
ssize_t len = 0;
buf = *bufp;
bufsize = *bufsizep;
if (buf == NULL || bufsize == 0) {
bufsize = LINE_MAX;
buf = erealloc(buf, LINE_MAX);
}
for (;;) {
if (fgets(buf + len, bufsize - len, fp) == NULL) {
len = -1;
break;
}
len = strlen(buf);
if (!len || buf[len - 1] == '\n' || feof(fp))
break;
bufsize *= 2;
buf = erealloc(buf, bufsize);
}
*bufp = buf;
*bufsizep = bufsize;
return(len);
}
#endif