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preliminary first fork-safe version

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instead of allocating memory in the child, we now use the allocator
thread to do all the necessary allocations himself.
additionally we provide a clean API to query the ip <-> dns mapping.
these functions connect via a pipe to the allocator thread, and
exchange messages.

further cleanup is needed, but it seems to work so far.
thread-safety is not yet guaranteed.

closes #1
This commit is contained in:
rofl0r
2012-11-07 20:11:14 +01:00
parent 25afe98b20
commit d0abc93c74
10 changed files with 311 additions and 242 deletions
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9
src/libproxychains.c
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@ -96,12 +96,9 @@ static void* load_sym(char* symname, void* proxyfunc) {
#include "allocator_thread.h"
static void do_init(void) {
MUTEX_INIT(&internal_ips_lock, NULL);
MUTEX_INIT(&hostdb_lock, NULL);
internal_ips = shm_realloc(NULL, 0, sizeof(internal_ip_lookup_table));
assert(internal_ips);
memset(internal_ips, 0, sizeof(internal_ip_lookup_table));
at_init(&internal_ips->mi.addr, &internal_ips->mi.oldsz, &internal_ips->mi.newsz);
srand(time(NULL));
MUTEX_INIT(&hostdb_lock);
at_init();
/* read the config file */
get_chain_data(proxychains_pd, &proxychains_proxy_count, &proxychains_ct);