Commit | Line | Data |
---|---|---|
672dbb8f FT |
1 | /* |
2 | * Dolda Connect - Modular multiuser Direct Connect-style client | |
3 | * Copyright (C) 2007 Fredrik Tolf (fredrik@dolda2000.com) | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | */ | |
19 | ||
20 | #include <stdlib.h> | |
21 | #include <stdio.h> | |
22 | #include <unistd.h> | |
95c14b73 | 23 | #include <string.h> |
672dbb8f | 24 | #include <sys/socket.h> |
f4663439 | 25 | #include <sys/poll.h> |
672dbb8f FT |
26 | |
27 | #ifdef HAVE_CONFIG_H | |
28 | #include <config.h> | |
29 | #endif | |
95c14b73 FT |
30 | #include <utils.h> |
31 | #include <http.h> | |
672dbb8f | 32 | |
f4663439 FT |
33 | #define STATE_SYN 0 |
34 | #define STATE_TXREQ 1 | |
35 | ||
061d5c59 FT |
36 | void freeurl(struct hturlinfo *ui) |
37 | { | |
38 | free(ui->host); | |
39 | free(ui->path); | |
40 | free(ui->query); | |
47359765 | 41 | free(ui->fragment); |
061d5c59 FT |
42 | free(ui); |
43 | } | |
44 | ||
95c14b73 FT |
45 | struct hturlinfo *parseurl(char *url) |
46 | { | |
47 | char *p, *p2, *p3; | |
48 | struct hturlinfo *ui; | |
49 | ||
50 | if(strncmp(url, "http://", 7)) | |
51 | return(NULL); | |
52 | ui = memset(smalloc(sizeof(*ui)), 0, sizeof(*ui)); | |
53 | p = url + 7; | |
54 | if((p2 = strchr(p, '/')) != NULL) | |
55 | *(p2++) = 0; | |
56 | if((p3 = strrchr(p, ':')) != NULL) { | |
57 | *(p3++) = 0; | |
58 | ui->port = atoi(p3); | |
f4663439 FT |
59 | } else { |
60 | ui->port = 80; | |
95c14b73 FT |
61 | } |
62 | ui->host = sstrdup(p); | |
63 | if(p2 == NULL) { | |
64 | ui->path = sstrdup("/"); | |
65 | } else { | |
66 | p = p2; | |
67 | if((p2 = strchr(p, '?')) != NULL) | |
68 | *(p2++) = 0; | |
69 | ui->path = sstrdup(p); | |
70 | } | |
71 | if(p2 == NULL) { | |
72 | ui->query = sstrdup(""); | |
73 | } else { | |
47359765 FT |
74 | p = p2; |
75 | if((p2 = strchr(p, '#')) != NULL) | |
76 | *(p2++) = 0; | |
77 | ui->query = sstrdup(p); | |
78 | } | |
79 | if(p2 == NULL) { | |
80 | ui->fragment = sstrdup(""); | |
81 | } else { | |
82 | ui->fragment = sstrdup(p2); | |
95c14b73 FT |
83 | } |
84 | return(ui); | |
85 | } | |
f4663439 FT |
86 | |
87 | static struct hturlinfo *dupurl(struct hturlinfo *ui) | |
88 | { | |
89 | struct hturlinfo *new; | |
90 | ||
91 | new = memset(smalloc(sizeof(*new)), 0, sizeof(*new)); | |
92 | new->host = sstrdup(ui->host); | |
93 | new->port = ui->port; | |
94 | new->path = sstrdup(ui->path); | |
95 | new->query = sstrdup(ui->query); | |
47359765 | 96 | new->fragment = sstrdup(ui->fragment); |
f4663439 FT |
97 | return(new); |
98 | } | |
99 | ||
100 | static struct addrinfo *resolvtcp(char *name, int port) | |
101 | { | |
102 | struct addrinfo hint, *ret; | |
103 | char tmp[32]; | |
104 | ||
105 | memset(&hint, 0, sizeof(hint)); | |
106 | hint.ai_socktype = SOCK_STREAM; | |
107 | hint.ai_flags = AI_NUMERICSERV | AI_CANONNAME; | |
108 | snprintf(tmp, sizeof(tmp), "%i", port); | |
109 | if(!getaddrinfo(name, tmp, &hint, &ret)) | |
110 | return(ret); | |
111 | return(NULL); | |
112 | } | |
113 | ||
114 | void freehtconn(struct htconn *cn) | |
115 | { | |
116 | if(cn->outbuf != NULL) | |
117 | free(cn->outbuf); | |
118 | if(cn->inbuf != NULL) | |
119 | free(cn->inbuf); | |
120 | freeurl(cn->url); | |
121 | freeaddrinfo(cn->ailist); | |
122 | if(cn->fd != -1) | |
123 | close(cn->fd); | |
124 | free(cn); | |
125 | } | |
126 | ||
127 | struct htconn *htconnect(struct hturlinfo *ui) | |
128 | { | |
129 | struct htconn *cn; | |
130 | ||
131 | cn = memset(smalloc(sizeof(*cn)), 0, sizeof(*cn)); | |
132 | cn->fd = -1; | |
133 | cn->url = dupurl(ui); | |
134 | cn->ailist = resolvtcp(ui->host, ui->port); | |
135 | return(cn); | |
136 | } | |
137 | ||
138 | int htpollflags(struct htconn *hc) | |
139 | { | |
140 | int ret; | |
141 | ||
142 | ret = POLLIN; | |
143 | if(hc->outbufdata > 0) | |
144 | ret |= POLLOUT; | |
145 | return(ret); | |
146 | } | |
147 | ||
148 | int htprocess(struct htconn *hc) | |
149 | { | |
150 | int ret; | |
151 | socklen_t optlen; | |
152 | ||
153 | if(hc->state == STATE_SYN) { | |
154 | if(hc->fd != -1) { | |
155 | optlen = sizeof(ret); | |
156 | getsockopt(hc->fd, SOL_SOCKET, SO_ERROR, &ret, &optlen); | |
157 | if(ret) { | |
158 | hc->fd = -1; | |
159 | } else { | |
160 | hc->state = STATE_TXREQ; | |
161 | } | |
162 | } | |
163 | if(hc->fd == -1) { | |
164 | if(hc->curai == NULL) | |
165 | hc->curai = hc->ailist; | |
166 | else | |
167 | hc->curai = hc->curai->ai_next; | |
168 | if(hc->curai == NULL) { | |
169 | /* Bleh! Linux and BSD don't share any good | |
170 | * errno for this. */ | |
171 | errno = ENOENT; | |
172 | return(-1); | |
173 | } | |
174 | } | |
175 | } | |
176 | return(0); | |
177 | } |