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more secure compile time options and removed unused variables #10

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more secure compile time options and removed unused variables #10

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7 changes: 5 additions & 2 deletions Makefile
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Original file line number Diff line number Diff line change
@@ -1,7 +1,10 @@
TARGET=libindp.so
CC=gcc
CFLAGS=-nostartfiles -fpic -shared -D_GNU_SOURCE -fstack-protector-all -Wall -Wextra -Wformat-security -O2 -D_FORTIFY_SOURCE=2 -fstack-clash-protection -fcf-protection
LDFLAGS=-ldl -Wl,-z,relro -Wl,-z,now -Wl,-z,defs -Wl,-z,noexecstack

all:
gcc -nostartfiles -fpic -shared bindp.c -o ${TARGET} -ldl -D_GNU_SOURCE
$(CC) $(CFLAGS) bindp.c -o $(TARGET) $(LDFLAGS)

clean:
rm ${TARGET} -f
rm -f $(TARGET)
12 changes: 5 additions & 7 deletions bindp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -194,7 +194,6 @@ int bind (int fd, const struct sockaddr *sk, socklen_t sl) {
#endif

if (ip_transparent) {
int opt =1;
setsockopt(fd, SOL_IP, IP_TRANSPARENT, &ip_transparent, sizeof(ip_transparent));
}

Expand All @@ -214,13 +213,9 @@ int connect (int fd, const struct sockaddr *sk, socklen_t sl) {
if (debug_enabled) {
printf("[-] connect(): AF_INET connect() call, binding to local address\n");
}
static struct sockaddr_in *rsk_in;

rsk_in = (struct sockaddr_in *)sk;

if (bind_addr_saddr || bind_port_saddr) {
int r = bind (fd, (struct sockaddr *)local_sockaddr_in, sizeof (struct sockaddr));

bind (fd, (struct sockaddr *)local_sockaddr_in, sizeof (struct sockaddr));
}
return real_connect (fd, sk, sl);

Expand All @@ -232,6 +227,9 @@ int connect (int fd, const struct sockaddr *sk, socklen_t sl) {
}
}

int main(int argc,char **argv) {

int main(int argc, char **argv) {
(void)argc; // Suppress unused parameter warning
(void)argv; // Suppress unused parameter warning
return 0;
}