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hush: fix "redirects can close script fd" bug

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2016-08-22 19:54:12 +02:00
parent d8e61bbf13
commit aa3576a29b
4 changed files with 186 additions and 69 deletions
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24
include/libbb.h
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@ -185,24 +185,32 @@ int klogctl(int type, char *b, int len);
/* Busybox does not use threads, we can speed up stdio. */
#ifdef HAVE_UNLOCKED_STDIO
# undef getc
# define getc(stream) getc_unlocked(stream)
# define getc(stream) getc_unlocked(stream)
# undef getchar
# define getchar() getchar_unlocked()
# define getchar() getchar_unlocked()
# undef putc
# define putc(c, stream) putc_unlocked(c, stream)
# define putc(c,stream) putc_unlocked(c,stream)
# undef putchar
# define putchar(c) putchar_unlocked(c)
# define putchar(c) putchar_unlocked(c)
# undef fgetc
# define fgetc(stream) getc_unlocked(stream)
# define fgetc(stream) getc_unlocked(stream)
# undef fputc
# define fputc(c, stream) putc_unlocked(c, stream)
# define fputc(c,stream) putc_unlocked(c,stream)
#endif
/* Above functions are required by POSIX.1-2008, below ones are extensions */
#ifdef HAVE_UNLOCKED_LINE_OPS
# undef fgets
# define fgets(s, n, stream) fgets_unlocked(s, n, stream)
# define fgets(s,n,stream) fgets_unlocked(s,n,stream)
# undef fputs
# define fputs(s, stream) fputs_unlocked(s, stream)
# define fputs(s,stream) fputs_unlocked(s,stream)
# undef fflush
# define fflush(stream) fflush_unlocked(stream)
# undef feof
# define feof(stream) feof_unlocked(stream)
# undef ferror
# define ferror(stream) ferror_unlocked(stream)
# undef fileno
# define fileno(stream) fileno_unlocked(stream)
#endif