DeforaNetworks/zzuf
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* Support fopen64().

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This commit is contained in:
Sam Hocevar
2006-12-15 00:43:39 +00:00
committed by sam
parent c77ff249ed
commit 1ebf62640b
1 changed files with 28 additions and 21 deletions
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src/preload.c
+28 -21
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@@ -39,11 +39,13 @@
#include "preload.h"
/* Library functions that we divert */
static FILE * (*fopen_orig) (const char *path, const char *mode);
static size_t (*fread_orig) (void *ptr, size_t size, size_t nmemb, FILE *stream);
static int (*open_orig) (const char *file, int oflag, ...);
static int (*open64_orig) (const char *file, int oflag, ...);
static ssize_t (*read_orig) (int fd, void *buf, size_t count);
static FILE * (*fopen_orig) (const char *path, const char *mode);
static FILE * (*fopen64_orig) (const char *path, const char *mode);
static size_t (*fread_orig) (void *ptr, size_t size, size_t nmemb,
FILE *stream);
static int (*open_orig) (const char *file, int oflag, ...);
static int (*open64_orig) (const char *file, int oflag, ...);
static ssize_t (*read_orig) (int fd, void *buf, size_t count);
#define STR(x) #x
#define ORIG(x) x##_orig
@@ -58,6 +60,7 @@ static ssize_t (*read_orig) (int fd, void *buf, size_t count);
int zzuf_preload(void)
{
LOADSYM(fopen);
LOADSYM(fopen64);
LOADSYM(fread);
LOADSYM(open);
LOADSYM(open64);
@@ -69,19 +72,27 @@ int zzuf_preload(void)
}
/* Our function wrappers */
#define FOPEN(ret, fn, path, mode) \
do \
{ \
ret = ORIG(fn)(path, mode); \
debug(STR(fn) "(\"%s\", \"%s\") = %p", path, mode, ret); \
if(ret) \
{ \
int fd = fileno(ret); \
files[fd].managed = 1; \
files[fd].pos = 0; \
} \
} while(0)
FILE *fopen(const char *path, const char *mode)
{
FILE *f;
FILE *f; FOPEN(f, fopen, path, mode); return f;
}
f = fopen_orig(path, mode);
debug("fopen(\"%s\", \"%s\") = %p", path, mode, f);
if(!f)
return NULL;
files[fileno(f)].managed = 1;
files[fileno(f)].pos = 0;
return f;
FILE *fopen64(const char *path, const char *mode)
{
FILE *f; FOPEN(f, fopen64, path, mode); return f;
}
size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream)
@@ -128,16 +139,12 @@ size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream)
int open(const char *file, int oflag, ...)
{
int ret;
OPEN(ret, open, file, oflag);
return ret;
int ret; OPEN(ret, open, file, oflag); return ret;
}
int open64(const char *file, int oflag, ...)
{
int ret;
OPEN(ret, open64, file, oflag);
return ret;
int ret; OPEN(ret, open64, file, oflag); return ret;
}
ssize_t read(int fd, void *buf, size_t count)