DeforaNetworks/zzuf
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* Fix a bug and refactor some code.

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This commit is contained in:
Sam Hocevar
2006-12-14 16:11:14 +00:00
committed by sam
parent 2cd4abfc4a
commit e09dc41893
1 changed files with 18 additions and 10 deletions
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src/libzzuf.c
+18 -10
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@@ -31,6 +31,18 @@
#include <stdarg.h>
#include <dlfcn.h>
#define STR(x) #x
#define ORIG(x) x##_orig
#define LOADSYM(x) \
do { \
ORIG(x) = dlsym(RTLD_NEXT, STR(x)); \
if(!ORIG(x)) \
{ \
debug("could not load %s", STR(x)); \
abort(); \
} \
} while(0)
static int do_debug = 0;
static void debug(const char *format, ...)
{
@@ -46,9 +58,9 @@ static void debug(const char *format, ...)
}
/* Library functions that we divert */
static FILE * (*fopen_orig) (const char *path, const char *mode);
static int (*open_orig) (const char *file, int oflag, ...);
static int (*open64_orig) (const char *file, int oflag, ...);
static FILE * (*fopen_orig) (const char *path, const char *mode);
static int (*open_orig) (const char *file, int oflag, ...);
static int (*open64_orig) (const char *file, int oflag, ...);
/* Library initialisation shit */
void zzufinit(void) __attribute__((constructor));
@@ -56,9 +68,9 @@ void zzufinit(void)
{
char *tmp;
fopen_orig = dlsym(RTLD_NEXT, "fopen");
open_orig = dlsym(RTLD_NEXT, "open");
open64_orig = dlsym(RTLD_NEXT, "open");
LOADSYM(fopen);
LOADSYM(open);
LOADSYM(open64);
tmp = getenv("ZZUF_DEBUG");
if(tmp && *tmp)
@@ -72,10 +84,6 @@ FILE *fopen(const char *path, const char *mode)
return fopen_orig(path, mode);
}
#define STR(x) STR2(x)
#define STR2(x) #x
#define ORIG(x) ORIG2(x)
#define ORIG2(x) x##_orig
#define OPEN(ret, fn, file, oflag) \
do { if(oflag & O_CREAT) \
{ \