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termux-api.c: rand() -> arc4random()

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This commit is contained in:
Fredrik Fornwall 2016-04-24 21:52:47 +02:00
parent bb3266ca1e
commit 1acf7001f9
1 changed files with 4 additions and 9 deletions
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13
packages/termux-api/termux-api.c
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@ -77,11 +77,11 @@ void exec_am_broadcast(int argc, char** argv, char* input_address_string, char*
void generate_uuid(char* str) {
sprintf(str, "%x%x-%x-%x-%x-%x%x%x",
rand(), rand(), // Generates a 64-bit Hex number
arc4random(), arc4random(), // Generates a 64-bit Hex number
(uint32_t) getpid(), // Generates a 32-bit Hex number
((rand() & 0x0fff) | 0x4000), // Generates a 32-bit Hex number of the form 4xxx (4 indicates the UUID version)
rand() % 0x3fff + 0x8000, // Generates a 32-bit Hex number in the range [0x8000, 0xbfff]
rand(), rand(), rand()); // Generates a 96-bit Hex number
((arc4random() & 0x0fff) | 0x4000), // Generates a 32-bit Hex number of the form 4xxx (4 indicates the UUID version)
arc4random() % 0x3fff + 0x8000, // Generates a 32-bit Hex number in the range [0x8000, 0xbfff]
arc4random(), arc4random(), arc4random()); // Generates a 96-bit Hex number
}
// Thread function which reads from stdin and writes to socket.
@ -120,11 +120,6 @@ int main(int argc, char** argv) {
char input_address_string[100]; // This program reads from it.
char output_address_string[100]; // This program writes to it.
// Seed the random number generator:
struct timeval time;
gettimeofday(&time,NULL);
srand((time.tv_sec * 1000) + (time.tv_usec / 1000));
generate_uuid(input_address_string);
generate_uuid(output_address_string);