| /* vi: set sw=4 ts=4: */ |
| /* |
| * Utility routines. |
| * |
| * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> |
| * |
| * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
| */ |
| |
| #include "libbb.h" |
| |
| FILE* FAST_FUNC fopen_or_warn(const char *path, const char *mode) |
| { |
| FILE *fp = fopen(path, mode); |
| if (!fp) { |
| bb_simple_perror_msg(path); |
| //errno = 0; /* why? */ |
| } |
| return fp; |
| } |
| |
| FILE* FAST_FUNC fopen_for_read(const char *path) |
| { |
| return fopen(path, "r"); |
| } |
| |
| FILE* FAST_FUNC xfopen_for_read(const char *path) |
| { |
| return xfopen(path, "r"); |
| } |
| |
| FILE* FAST_FUNC fopen_for_write(const char *path) |
| { |
| return fopen(path, "w"); |
| } |
| |
| FILE* FAST_FUNC xfopen_for_write(const char *path) |
| { |
| return xfopen(path, "w"); |
| } |
| |
| static FILE* xfdopen_helper(unsigned fd_and_rw_bit) |
| { |
| FILE* fp = fdopen(fd_and_rw_bit >> 1, fd_and_rw_bit & 1 ? "w" : "r"); |
| if (!fp) |
| bb_error_msg_and_die(bb_msg_memory_exhausted); |
| return fp; |
| } |
| FILE* FAST_FUNC xfdopen_for_read(int fd) |
| { |
| return xfdopen_helper(fd << 1); |
| } |
| FILE* FAST_FUNC xfdopen_for_write(int fd) |
| { |
| return xfdopen_helper((fd << 1) + 1); |
| } |