X-Git-Url: http://git.harvie.cz/?a=blobdiff_plain;f=c%2Fcano%2Fold%2Fcano.c;fp=c%2Fcano%2Fold%2Fcano.c;h=1f374b34417abd9ebf805504b8032d46a1ef0f5e;hb=d3b2d1a75c5c62e4d7142124162e2deb8273b32b;hp=0000000000000000000000000000000000000000;hpb=b9a41889280efffe1d21fb094e175f0f204ea039;p=mirrors%2FPrograms.git

diff --git a/c/cano/old/cano.c b/c/cano/old/cano.c
new file mode 100644
index 0000000..1f374b3
--- /dev/null
+++ b/c/cano/old/cano.c
@@ -0,0 +1,52 @@
+#define _GNU_SOURCE
+#include <dlfcn.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/syscall.h>
+#include <linux/limits.h>
+
+
+static const char *fd_to_path(int fd) {
+	static char path[PATH_MAX];
+	sprintf(path,"/proc/self/fd/%d",fd);
+	int l = (int) readlink((char * __restrict__) path, path, PATH_MAX);
+	path[l]=0;
+	return path;
+}
+
+int at_close() {
+	unsetenv("LD_PRELOAD");
+	return system(getenv("AT_CLOSE"));
+	/*
+	static const char *command;
+	if(!command) {
+		command = getenv("AT_CLOSE");
+		unsetenv("LD_PRELOAD");
+	}
+	fprintf(stderr,"%s\n",command);
+	system(command);
+	return 0;
+	*/
+}
+
+int close(int fd) {
+	//fprintf(stderr,"%s(%d,%s);\n",__func__,fd,fd_to_path(fd));
+	static int (*close_orig)(int fd);
+	if (!close_orig) {
+		close_orig = dlsym(RTLD_NEXT, "close");
+	}
+	int ret = close_orig(fd);
+	//int ret = syscall(SYS_close,fd);
+	at_close();
+	return ret;
+}
+int fclose(FILE *fd) {
+	//fprintf(stderr,"%s(%d,%d,%s);\n",__func__,fileno(fd),fd,fd_to_path(fileno(fd)));
+	static int (*fclose_orig)(FILE *fd);
+	if (!fclose_orig) {
+		fclose_orig = dlsym(RTLD_NEXT, "fclose");
+	}
+	int ret = fclose_orig(fd);
+	at_close();
+	return ret;
+}