circlecloud/proxychains-ng
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care about HOME also in proxychains loader. put common symbols in common.h

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rofl0r
2011-09-10 22:32:27 +02:00
parent 4d517cdfb0
commit b8bdfc2d5e
4 changed files with 36 additions and 25 deletions
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47
src/main.c
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@ -26,7 +26,7 @@
extern char *optarg;
extern int optind, opterr, optopt;
#define PROXYCHAINS_CONF_FILE "proxychains.conf"
#include "common.h"
static void usage(char** argv) {
printf("\nUsage: %s [h] [f] config_file program_name [arguments]\n"
@ -34,6 +34,11 @@ static void usage(char** argv) {
"More help in README file\n", argv[0]);
}
int check_path(char* path) {
if(!path) return 0;
return access(path, R_OK) != -1;
}
int main(int argc, char *argv[]) {
char *path = NULL;
char buf[256];
@ -54,34 +59,42 @@ int main(int argc, char *argv[]) {
}
}
/* check if path of config file has not been passed via command line */
if(!path) {
if(!(path = getenv("PROXYCHAINS_CONF_FILE")))
path = getcwd(buf, sizeof(buf));
else if(access(path, R_OK) != -1) goto have;
if(!path ||
!snprintf(pbuf, sizeof(pbuf), "%s/%s", path, PROXYCHAINS_CONF_FILE) ||
access(pbuf, R_OK) == -1
)
path = "/etc/proxychains.conf";
else
path = pbuf;
}
if(access(path, R_OK) == -1) {
// priority 1: env var PROXYCHAINS_CONF_FILE
path = getenv(PROXYCHAINS_CONF_FILE_ENV_VAR);
if(check_path(path)) goto have;
// priority 2; proxychains conf in actual dir
path = getcwd(buf, sizeof(buf));
snprintf(pbuf, sizeof(pbuf), "%s/%s", path, PROXYCHAINS_CONF_FILE);
path = pbuf;
if(check_path(path)) goto have;
// priority 3; $HOME/.proxychains/proxychains.conf
path = getenv("HOME");
snprintf(pbuf, sizeof(pbuf), "%s/.proxychains/%s", path, PROXYCHAINS_CONF_FILE);
path = pbuf;
if(check_path(path)) goto have;
// priority 4: /etc/proxychains.conf
path = "/etc/proxychains.conf";
if(check_path(path)) goto have;
perror("couldnt find configuration file");
return 1;
}
have:
printf("using config file: %s\n", path);
//printf("argv = %s\n", argv[1]);
printf("[proxychains config] %s\n", path);
/* Set PROXYCHAINS_CONF_FILE to get proxychains lib to use new config file. */
setenv("PROXYCHAINS_CONF_FILE", path, 1);
setenv(PROXYCHAINS_CONF_FILE_ENV_VAR, path, 1);
snprintf(buf, sizeof(buf), "LD_PRELOAD=%s/libproxychains.so", LIB_DIR);
putenv(buf);
execvp(argv[1], &argv[1]);
perror("proxychains can't load process....");
return EXIT_SUCCESS;
return EXIT_FAILURE;
}