Fix mingw tools build

mkimage does not build due to missing strtok_r() and getline() implementation

Signed-off-by: Remy Bohmer <linux@bohmer.net>

diff --git a/tools/mingw_support.c b/tools/mingw_support.c
index 67cd6e115f482297052f121f82b0e0076a345008..63797108bb84e4330ec708d0d76524a962094dfc 100644 (file)
--- a/tools/mingw_support.c
+++ b/tools/mingw_support.c
@@ -24,7 +24,9 @@
 #include "mingw_support.h"
 #include <stdio.h>
 #include <stdint.h>
+#include <string.h>
 #include <errno.h>
+#include <assert.h>
 #include <io.h>
 
 int fsync(int fd)
@@ -77,3 +79,158 @@ int munmap(void *addr, size_t len)
 
        return 0;
 }
+
+/* Reentrant string tokenizer.  Generic version.
+   Copyright (C) 1991,1996-1999,2001,2004,2007 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Parse S into tokens separated by characters in DELIM.
+   If S is NULL, the saved pointer in SAVE_PTR is used as
+   the next starting point.  For example:
+       char s[] = "-abc-=-def";
+       char *sp;
+       x = strtok_r(s, "-", &sp);      // x = "abc", sp = "=-def"
+       x = strtok_r(NULL, "-=", &sp);  // x = "def", sp = NULL
+       x = strtok_r(NULL, "=", &sp);   // x = NULL
+               // s = "abc\0-def\0"
+*/
+char *strtok_r(char *s, const char *delim, char **save_ptr)
+{
+       char *token;
+
+       if (s == NULL)
+               s = *save_ptr;
+
+       /* Scan leading delimiters.  */
+       s += strspn(s, delim);
+       if (*s == '\0') {
+               *save_ptr = s;
+               return NULL;
+       }
+
+       /* Find the end of the token.  */
+       token = s;
+       s = strpbrk (token, delim);
+       if (s == NULL) {
+               /* This token finishes the string.  */
+               *save_ptr = memchr(token, '\0', strlen(token));
+       } else {
+               /* Terminate the token and make *SAVE_PTR point past it.  */
+               *s = '\0';
+               *save_ptr = s + 1;
+       }
+       return token;
+}
+
+/* getline.c -- Replacement for GNU C library function getline
+
+Copyright (C) 1993, 1996, 2001, 2002 Free Software Foundation, Inc.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+/* Written by Jan Brittenson, bson@gnu.ai.mit.edu.  */
+
+/* Always add at least this many bytes when extending the buffer.  */
+#define MIN_CHUNK 64
+
+/* Read up to (and including) a TERMINATOR from STREAM into *LINEPTR
+   + OFFSET (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.  Return the number of characters read (not including the
+   null terminator), or -1 on error or EOF.
+   NOTE: There is another getstr() function declared in <curses.h>.  */
+static int getstr(char **lineptr, size_t *n, FILE *stream,
+                 char terminator, size_t offset)
+{
+       int nchars_avail;       /* Allocated but unused chars in *LINEPTR.  */
+       char *read_pos;         /* Where we're reading into *LINEPTR. */
+       int ret;
+
+       if (!lineptr || !n || !stream)
+               return -1;
+
+       if (!*lineptr) {
+               *n = MIN_CHUNK;
+               *lineptr = malloc(*n);
+               if (!*lineptr)
+                       return -1;
+       }
+
+       nchars_avail = *n - offset;
+       read_pos = *lineptr + offset;
+
+       for (;;) {
+               register int c = getc(stream);
+
+               /* We always want at least one char left in the buffer, since we
+                  always (unless we get an error while reading the first char)
+                  NUL-terminate the line buffer.  */
+
+               assert(*n - nchars_avail == read_pos - *lineptr);
+               if (nchars_avail < 2) {
+                       if (*n > MIN_CHUNK)
+                               *n *= 2;
+                       else
+                               *n += MIN_CHUNK;
+
+                       nchars_avail = *n + *lineptr - read_pos;
+                       *lineptr = realloc(*lineptr, *n);
+                       if (!*lineptr)
+                               return -1;
+                       read_pos = *n - nchars_avail + *lineptr;
+                       assert(*n - nchars_avail == read_pos - *lineptr);
+               }
+
+               if (c == EOF || ferror (stream)) {
+                       /* Return partial line, if any.  */
+                       if (read_pos == *lineptr)
+                               return -1;
+                       else
+                               break;
+               }
+
+               *read_pos++ = c;
+               nchars_avail--;
+
+               if (c == terminator)
+                       /* Return the line.  */
+                       break;
+       }
+
+       /* Done - NUL terminate and return the number of chars read.  */
+       *read_pos = '\0';
+
+       ret = read_pos - (*lineptr + offset);
+       return ret;
+}
+
+int getline (char **lineptr, size_t *n, FILE *stream)
+{
+       return getstr(lineptr, n, stream, '\n', 0);
+}

diff --git a/tools/mingw_support.h b/tools/mingw_support.h
index 9e45e64911b6ff9d643f5ab5da285a610a39c2fd..27936746bda86ac2f43da3c81f8162a0e672f13d 100644 (file)
--- a/tools/mingw_support.h
+++ b/tools/mingw_support.h
@@ -44,5 +44,7 @@ typedef       ULONG   ulong;
 int fsync(int fd);
 void *mmap(void *, size_t, int, int, int, int);
 int munmap(void *, size_t);
+char *strtok_r(char *s, const char *delim, char **save_ptr);
+int getline(char **lineptr, size_t *n, FILE *stream);
 
 #endif /* __MINGW_SUPPORT_H_ */