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add: foreign key support in database

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add: more tests
fix: bad tag handling when finding 0 in column
This commit is contained in:
Tobias Reisinger 2020-05-28 02:12:39 +02:00
parent 7f3182ee96
commit 1475f605aa
14 changed files with 214 additions and 276 deletions
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52
helpers/bind_server.c
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@ -1,52 +0,0 @@
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <netdb.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <errno.h>
#include <logger.h>
#include <helpers.h>
int
helper_bind_tcp_server(char* addr, uint16_t port, int max_client_backlog)
{
char port_str[6];
sprintf(port_str, "%d", port);
struct addrinfo hints, *res;
int fd;
int status;
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE;
if ((status = getaddrinfo(addr, port_str, &hints, &res)) != 0)
{
LOG_ERROR("getaddrinfo: %s\n", gai_strerror(status));
return -1;
}
fd = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
if ((status = bind(fd, res->ai_addr, res->ai_addrlen)) == -1)
{
LOG_ERROR("error binding socket: %s\n", strerror(errno));
freeaddrinfo(res);
return -1;
}
if ((status = listen(fd, max_client_backlog)) == -1)
{
LOG_ERROR("error setting up listener: %s\n", strerror(errno));
freeaddrinfo(res);
return -1;
}
freeaddrinfo(res);
return fd;
}

24
helpers/get_port.c
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@ -1,24 +0,0 @@
#include <sys/socket.h>
#include <arpa/inet.h>
#include <stdint.h>
#include <errno.h>
#include <string.h>
#include <helpers.h>
#include <logger.h>
uint16_t
helper_get_port(int sock)
{
struct sockaddr_in sin;
socklen_t len = sizeof(sin);
if (getsockname(sock, (struct sockaddr *)&sin, &len) == -1)
{
LOG_ERROR("could not get socket name for port: %s\n", strerror(errno));
return 0;
}
else
{
return ntohs(sin.sin_port);
}
}

57
helpers/open_discovery_socket.c
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@ -1,57 +0,0 @@
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <netdb.h>
#include <sys/socket.h>
#include <logger.h>
#include <helpers.h>
int
helper_open_discovery_socket(uint16_t discovery_port)
{
struct addrinfo hints, *res;
int fd, status;
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_INET; // use ipv4
hints.ai_socktype = SOCK_DGRAM; //set socket flag
hints.ai_flags = AI_PASSIVE; // get my IP
char discovery_port_str[6];
sprintf(discovery_port_str, "%u", discovery_port);
//get connection info for our computer
if ((status = getaddrinfo(NULL, discovery_port_str, &hints, &res)) != 0)
{
LOG_FATAL("getaddrinfo: %s\n", gai_strerror(status));
freeaddrinfo(res);
exit(EXIT_FAILURE);
}
//creating socket
fd = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
int yes = 1;
// lose the pesky "Address already in use" error message
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) == -1)
{
LOG_FATAL("setsockopt: %s\n", strerror(errno));
freeaddrinfo(res);
exit(EXIT_FAILURE);
}
if (bind(fd, res->ai_addr, res->ai_addrlen) == -1)
{
LOG_FATAL("bind: %s\n", strerror(errno));
freeaddrinfo(res);
exit(EXIT_FAILURE);
}
freeaddrinfo(res);
LOG_INFO("opened discovery socket on port %u\n", discovery_port);
return fd;
}