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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#undef _GNU_SOURCE
#include <sys/types.h>
#define getline stdio_getline /* bird */
#include <stdio.h>
#undef getline /* bird */
#ifdef HAVE_STRINGS_H
# include <strings.h>
#else
# include <string.h>
#endif /* HAVE_STRINGS_H */
#ifdef HAVE_STDLIB_H
# include <stdlib.h>
#endif /* HAVE_STDLIB_H */
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include <limits.h>
#include <errno.h>
/* Read up to (and including) a '\n' from STREAM into *LINEPTR
(and null-terminate it). *LINEPTR is a pointer returned from malloc (or
NULL), pointing to *N characters of space. It is realloc'd as
necessary. Returns the number of characters read (not including the
null terminator), or -1 on error or EOF. */
size_t
getline (lineptr, n, stream)
char **lineptr;
size_t *n;
FILE *stream;
{
char *line, *p;
long size, copy;
if (lineptr == NULL || n == NULL)
{
errno = EINVAL;
return (size_t) -1;
}
if (ferror (stream))
return (size_t) -1;
/* Make sure we have a line buffer to start with. */
if (*lineptr == NULL || *n < 2) /* !seen and no buf yet need 2 chars. */
{
#ifndef MAX_CANON
#define MAX_CANON 256
#endif
if (!*lineptr)
line = (char *) malloc (MAX_CANON);
else
line = (char *) realloc (*lineptr, MAX_CANON);
if (line == NULL)
return (size_t) -1;
*lineptr = line;
*n = MAX_CANON;
}
line = *lineptr;
size = *n;
copy = size;
p = line;
while (1)
{
long len;
while (--copy > 0)
{
register int c = getc (stream);
if (c == EOF)
goto lose;
else if ((*p++ = c) == '\n')
goto win;
}
/* Need to enlarge the line buffer. */
len = p - line;
size *= 2;
line = (char *) realloc (line, size);
if (line == NULL)
goto lose;
*lineptr = line;
*n = size;
p = line + len;
copy = size - len;
}
lose:
if (p == *lineptr)
return (size_t) -1;
/* Return a partial line since we got an error in the middle. */
win:
#if defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__) || defined(MSDOS) || defined(__EMX__)
if (p - 2 >= *lineptr && p[-2] == '\r')
p[-2] = p[-1], --p;
#endif
*p = '\0';
return p - *lineptr;
}
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