scc

simple c99 compiler
git clone git://git.simple-cc.org/scc
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_allocbuf.c (313B)

      1 #include <errno.h>
      2 #include <stdio.h>
      3 #include <stdlib.h>
      4 
      5 #include "../libc.h"
      6 
      7 int
      8 _allocbuf(FILE *fp)
      9 {
     10 	unsigned char *bp;
     11 
     12 	if ((bp = malloc(BUFSIZ)) == NULL) {
     13 		fp->flags |= _IOERR;
     14 		errno = ENOMEM;
     15 		return EOF;
     16 	}
     17 	fp->len = BUFSIZ;
     18 	fp->rp = fp->wp = fp->buf = bp;
     19 	fp->lp = bp + BUFSIZ;
     20 
     21 	return 0;
     22 }