ndk-busybox/libbb/wfopen.c
Denys Vlasenko 899ae5337a libbb: new function bb_die_memory_exhausted
function                                             old     new   delta
bb_die_memory_exhausted                                -      10     +10
xstrdup                                               28      23      -5
xsetenv                                               27      22      -5
xrealloc                                              32      27      -5
xputenv                                               22      17      -5
xmalloc                                               30      25      -5
xfdopen_helper                                        40      35      -5
xasprintf                                             44      39      -5
wget_main                                           2387    2382      -5
open_socket                                           54      49      -5
glob_brace                                           419     414      -5
bb_get_chunk_from_file                               146     141      -5
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/11 up/down: 10/-55)           Total: -45 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-01 19:59:37 +02:00

56 lines
1.0 KiB
C

/* 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 source tree.
*/
#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_die_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);
}