DeforaNetworks/zzuf
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* Implemented freopen().

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This commit is contained in:
Sam Hocevar
2007-01-07 20:50:49 +00:00
committed by sam
parent ed0673fd2e
commit fd6d3e00a1
2 changed files with 36 additions and 2 deletions
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5
doc/zzuf.1
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@@ -266,8 +266,9 @@ Unix file descriptor handling:
\fBmmap\fR(), \fBmunmap\fR(), \fBclose\fR()
.TP
Standard IO streams:
\fBfopen\fR(), \fBfseek\fR(), \fBfseeko\fR(), \fBrewind\fR(), \fBfread\fR(),
\fBgetc\fR(), \fBfgetc\fR(), \fBfgets\fR(), \fBungetc\fR(), \fBfclose\fR()
\fBfopen\fR(), \fBfreopen\fR(), \fBfseek\fR(), \fBfseeko\fR(), \fBrewind\fR(),
\fBfread\fR(), \fBgetc\fR(), \fBfgetc\fR(), \fBfgets\fR(), \fBungetc\fR(),
\fBfclose\fR()
.TP
Linux-specific:
\fBopen64\fR(), \fBlseek64\fR(), \fBmmap64\fR(), \fB_IO_getc\fR(),

33
src/load-stream.c
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@@ -54,6 +54,8 @@ static FILE * (*fopen_orig) (const char *path, const char *mode);
#ifdef HAVE_FOPEN64
static FILE * (*fopen64_orig) (const char *path, const char *mode);
#endif
static FILE * (*freopen_orig) (const char *path, const char *mode,
FILE *stream);
static int (*fseek_orig) (FILE *stream, long offset, int whence);
#ifdef HAVE_FSEEKO
static int (*fseeko_orig) (FILE *stream, off_t offset, int whence);
@@ -98,6 +100,7 @@ void _zz_load_stream(void)
#ifdef HAVE_FOPEN64
LOADSYM(fopen64);
#endif
LOADSYM(freopen);
LOADSYM(fseek);
#ifdef HAVE_FSEEKO
LOADSYM(fseeko);
@@ -161,6 +164,36 @@ FILE *fopen64(const char *path, const char *mode)
}
#endif
FILE *freopen(const char *path, const char *mode, FILE *stream)
{
FILE *ret;
int fd0 = -1, fd1 = -1, disp = 0;
if(!_zz_ready)
LOADSYM(freopen);
if(_zz_ready && (fd0 = fileno(stream)) >= 0 && _zz_iswatched(fd0))
{
_zz_unregister(fd0);
disp = 1;
}
_zz_disabled = 1;
ret = freopen_orig(path, mode, stream);
_zz_disabled = 0;
if(ret && _zz_mustwatch(path))
{
fd1 = fileno(ret);
_zz_register(fd1);
disp = 1;
}
if(disp)
debug("freopen(\"%s\", \"%s\", [%i]) = [%i]", path, mode, fd0, fd1);
return ret;
}
#if defined HAVE___SREFILL /* Don't fuzz or seek if we have __srefill() */
# define FSEEK_FUZZ(fn2)
#else