ref: dafc7b4128023928611008473fd07e0ab7a0bbd8
dir: /lib/c/fopen.c/
#include <errno.h> #include <stdio.h> #include "syscall.h" #include "libc.h" #undef fopen FILE * fopen(const char * restrict name, const char * restrict mode) { FILE *fp; for (fp = __iob; fp < &__iob[FOPEN_MAX]; ++fp) { if ((fp->flags & (_IOREAD | _IOWRITE | _IORW)) == 0) break; } if (fp == &__iob[FOPEN_MAX]) { errno = ENOMEM; return NULL; } return _fpopen(name, mode, fp); }