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comparison seobeo/s_network.c @ 244:b8aa08503378

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[tools] Add sandboxed online LaTeX editor Co-authored-by: Copilot <[email protected]>
author MrJuneJune <me@mrjunejune.com>
date Mon, 03 Aug 2026 16:56:25 -0700
parents 0e7b9464248d
children 117c4d53c9a4
comparison
equal deleted inserted replaced
243:823f2a8b16c8 244:b8aa08503378
15 #else 15 #else
16 (void)socket_fd; 16 (void)socket_fd;
17 #endif 17 #endif
18 } 18 }
19 19
20 static void Seobeo_Socket_Set_Close_On_Exec(int socket_fd)
21 {
22 int flags = fcntl(socket_fd, F_GETFD, 0);
23 if (flags >= 0)
24 fcntl(socket_fd, F_SETFD, flags | FD_CLOEXEC);
25 }
26
20 static ssize_t Seobeo_Socket_Write( 27 static ssize_t Seobeo_Socket_Write(
21 int socket_fd, 28 int socket_fd,
22 const void *buffer, 29 const void *buffer,
23 size_t length) 30 size_t length)
24 { 31 {
50 free_server_info = server_infos; 57 free_server_info = server_infos;
51 free_server_info != NULL; 58 free_server_info != NULL;
52 free_server_info = free_server_info->ai_next 59 free_server_info = free_server_info->ai_next
53 ) 60 )
54 { 61 {
62 int socket_type = free_server_info->ai_socktype;
63 #ifdef SOCK_CLOEXEC
64 socket_type |= SOCK_CLOEXEC;
65 #endif
55 if((socket_fd = socket(free_server_info->ai_family, 66 if((socket_fd = socket(free_server_info->ai_family,
56 free_server_info->ai_socktype, free_server_info->ai_protocol)) == -1) 67 socket_type, free_server_info->ai_protocol)) == -1)
57 { perror("socket"); continue; } 68 { perror("socket"); continue; }
69 Seobeo_Socket_Set_Close_On_Exec(socket_fd);
58 Seobeo_Socket_Disable_Sigpipe(socket_fd); 70 Seobeo_Socket_Disable_Sigpipe(socket_fd);
59 71
60 if (setsockopt(socket_fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) == -1) 72 if (setsockopt(socket_fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) == -1)
61 { perror("setsockopt SO_REUSEADDR"); continue; } 73 { perror("setsockopt SO_REUSEADDR"); continue; }
62 74
124 136
125 if (getaddrinfo(host, port, &hints, &server_infos) != 0) 137 if (getaddrinfo(host, port, &hints, &server_infos) != 0)
126 { perror("getaddrinfo"); return NULL; } 138 { perror("getaddrinfo"); return NULL; }
127 139
128 140
141 int socket_type = server_infos->ai_socktype;
142 #ifdef SOCK_CLOEXEC
143 socket_type |= SOCK_CLOEXEC;
144 #endif
129 if((socket_fd = socket(server_infos->ai_family, 145 if((socket_fd = socket(server_infos->ai_family,
130 server_infos->ai_socktype, server_infos->ai_protocol)) == -1) 146 socket_type, server_infos->ai_protocol)) == -1)
131 { perror("socket"); return NULL; } 147 { perror("socket"); return NULL; }
148 Seobeo_Socket_Set_Close_On_Exec(socket_fd);
132 Seobeo_Socket_Disable_Sigpipe(socket_fd); 149 Seobeo_Socket_Disable_Sigpipe(socket_fd);
133 150
134 if (connect(socket_fd, server_infos->ai_addr, server_infos->ai_addrlen) != 0) 151 if (connect(socket_fd, server_infos->ai_addr, server_infos->ai_addrlen) != 0)
135 { perror("connect"); return NULL; } 152 { perror("connect"); return NULL; }
136 freeaddrinfo(server_infos); 153 freeaddrinfo(server_infos);
176 { 193 {
177 struct sockaddr_storage addr; 194 struct sockaddr_storage addr;
178 socklen_t addrlen = sizeof addr; 195 socklen_t addrlen = sizeof addr;
179 char client_inet_addr[INET6_ADDRSTRLEN]; 196 char client_inet_addr[INET6_ADDRSTRLEN];
180 197
181 int client_fd = accept(p_server_handle->socket, 198 int client_fd = accept(
182 (struct sockaddr*)&addr, 199 p_server_handle->socket,
183 &addrlen); 200 (struct sockaddr*)&addr,
201 &addrlen);
184 inet_ntop( 202 inet_ntop(
185 addr.ss_family, 203 addr.ss_family,
186 Seobeo_Get_IP4_Or_IP6((struct sockaddr *)&addr), 204 Seobeo_Get_IP4_Or_IP6((struct sockaddr *)&addr),
187 client_inet_addr, sizeof client_inet_addr); 205 client_inet_addr, sizeof client_inet_addr);
188 if (client_fd == -1) return NULL; 206 if (client_fd == -1) return NULL;
207 Seobeo_Socket_Set_Close_On_Exec(client_fd);
189 Seobeo_Socket_Disable_Sigpipe(client_fd); 208 Seobeo_Socket_Disable_Sigpipe(client_fd);
190 209
191 // Set non blocking... 210 // Set non blocking...
192 int flags = fcntl(client_fd, F_GETFL, 0); 211 int flags = fcntl(client_fd, F_GETFL, 0);
193 if (flags == -1) return NULL; 212 if (flags == -1) return NULL;