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ghaerrghaerr
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Reformat httpd.c source
1 parent 5a84c41 commit 827cecf

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+138
-138
lines changed

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+138
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‎elkscmd/inet/httpd/httpd.c‎

Lines changed: 138 additions & 138 deletions
Original file line numberDiff line numberDiff line change
@@ -36,10 +36,10 @@
3636
#include <arpa/inet.h>
3737
#include <sys/wait.h>
3838

39-
#define DEF_PORT 80
40-
#define DEF_CONTENT "text/html"
39+
#define DEF_PORT 80
40+
#define DEF_CONTENT "text/html"
4141

42-
#define WS(c) ( ((c) == ' ') || ((c) == '\t') || ((c) == '\r') || ((c) == '\n') )
42+
#define WS(c) ( ((c) == ' ') || ((c) == '\t') || ((c) == '\r') || ((c) == '\n') )
4343

4444
int listen_sock;
4545
char buf[1536];
@@ -50,163 +50,163 @@ char* get_mime_type(char *name)
5050

5151
dot = strrchr( name, '.' );
5252
if ( dot == (char*) 0 )
53-
return "text/plain";
53+
return "text/plain";
5454
if ( strcmp( dot, ".html" ) == 0 || strcmp( dot, ".htm" ) == 0 )
55-
return "text/html";
55+
return "text/html";
5656
if ( strcmp( dot, ".jpg" ) == 0 || strcmp( dot, ".jpeg" ) == 0 )
57-
return "image/jpeg";
57+
return "image/jpeg";
5858
if ( strcmp( dot, ".gif" ) == 0 )
59-
return "image/gif";
59+
return "image/gif";
6060
if ( strcmp( dot, ".png" ) == 0 )
61-
return "image/png";
61+
return "image/png";
6262
if ( strcmp( dot, ".css" ) == 0 )
63-
return "text/css";
63+
return "text/css";
6464
if ( strcmp( dot, ".vrml" ) == 0 || strcmp( dot, ".wrl" ) == 0 )
65-
return "model/vrml";
65+
return "model/vrml";
6666
if ( strcmp( dot, ".midi" ) == 0 || strcmp( dot, ".mid" ) == 0 )
67-
return "audio/midi";
67+
return "audio/midi";
6868
return "text/plain";
6969
}
7070

7171
void send_header(int fd, char *ct)
7272
{
73-
buf[0] = 0;
74-
sprintf(buf, "HTTP/1.0 200 OK\r\nServer: nanoHTTPd/0.1\r\nDate: Thu Apr 26 15:37:46 GMT 2001\r\nContent-Type: %s\r\n",ct);
75-
write(fd, buf, strlen(buf));
73+
buf[0] = 0;
74+
sprintf(buf, "HTTP/1.0 200 OK\r\nServer: nanoHTTPd/0.1\r\nDate: Thu Apr 26 15:37:46 GMT 2001\r\nContent-Type: %s\r\n",ct);
75+
write(fd, buf, strlen(buf));
7676
}
7777

7878
void send_error(int fd, int errnum, char *str)
7979
{
80-
sprintf(buf,"HTTP/1.0 %d %s\r\nContent-type: %s\r\n", errnum, str, DEF_CONTENT);
81-
write(fd, buf, strlen(buf));
82-
sprintf(buf,"Connection: close\r\nDate: Thu Apr 26 15:37:46 GMT 2001\r\n\r\n%s\r\n",str);
83-
write(fd, buf, strlen(buf));
80+
sprintf(buf,"HTTP/1.0 %d %s\r\nContent-type: %s\r\n", errnum, str, DEF_CONTENT);
81+
write(fd, buf, strlen(buf));
82+
sprintf(buf,"Connection: close\r\nDate: Thu Apr 26 15:37:46 GMT 2001\r\n\r\n%s\r\n",str);
83+
write(fd, buf, strlen(buf));
8484
}
8585

8686
void process_request(int fd)
8787
{
88-
int fin, ret;
89-
off_t size;
90-
char *c, *file, fullpath[PATH_MAX];
91-
struct stat st;
92-
93-
ret = read(fd, buf, sizeof(buf));
94-
95-
c = buf;
96-
while (*c && !WS(*c) && c < (buf + sizeof(buf))){
97-
c++;
98-
}
99-
*c = 0;
100-
101-
if (strcasecmp(buf, "get")){
102-
send_error(fd, 404, "Method not supported");
103-
return;
104-
}
105-
106-
file = ++c;
107-
while (*c && !WS(*c) && c < (buf + sizeof(buf))){
108-
c++;
109-
}
110-
*c = 0;
111-
112-
/* TODO : Use strncat when security is the only problem of this server! */
113-
strcpy(fullpath, _PATH_DOCBASE);
114-
strcat(fullpath, file);
115-
116-
if (!stat(fullpath, &st) && (st.st_mode & S_IFMT) == S_IFDIR) {
117-
if (file[strlen(fullpath) - 1] != '/'){
118-
strcat(fullpath, "/");
119-
}
120-
strcat(fullpath, "index.html");
121-
}
122-
123-
fin = open(fullpath, O_RDONLY);
124-
if (fin < 0){
125-
send_error(fd, 404, "Document (probably) not found");
126-
return;
127-
}
128-
size = lseek(fin, (off_t)0, SEEK_END);
129-
lseek(fin, (off_t)0, SEEK_SET);
130-
send_header(fd, get_mime_type(fullpath));
131-
sprintf(buf,"Content-Length: %ld\r\n\r\n", size);
132-
write(fd, buf, strlen(buf));
133-
134-
do {
135-
ret = read(fin, buf, sizeof(buf));
136-
if (ret > 0)
137-
ret = write(fd, buf, ret);
138-
} while (ret == sizeof(buf));
139-
140-
close(fin);
141-
88+
int fin, ret;
89+
off_t size;
90+
char *c, *file, fullpath[PATH_MAX];
91+
struct stat st;
92+
93+
ret = read(fd, buf, sizeof(buf));
94+
95+
c = buf;
96+
while (*c && !WS(*c) && c < (buf + sizeof(buf))){
97+
c++;
98+
}
99+
*c = 0;
100+
101+
if (strcasecmp(buf, "get")){
102+
send_error(fd, 404, "Method not supported");
103+
return;
104+
}
105+
106+
file = ++c;
107+
while (*c && !WS(*c) && c < (buf + sizeof(buf))){
108+
c++;
109+
}
110+
*c = 0;
111+
112+
/* TODO : Use strncat when security is the only problem of this server! */
113+
strcpy(fullpath, _PATH_DOCBASE);
114+
strcat(fullpath, file);
115+
116+
if (!stat(fullpath, &st) && (st.st_mode & S_IFMT) == S_IFDIR) {
117+
if (file[strlen(fullpath) - 1] != '/'){
118+
strcat(fullpath, "/");
119+
}
120+
strcat(fullpath, "index.html");
121+
}
122+
123+
fin = open(fullpath, O_RDONLY);
124+
if (fin < 0){
125+
send_error(fd, 404, "Document (probably) not found");
126+
return;
127+
}
128+
size = lseek(fin, (off_t)0, SEEK_END);
129+
lseek(fin, (off_t)0, SEEK_SET);
130+
send_header(fd, get_mime_type(fullpath));
131+
sprintf(buf,"Content-Length: %ld\r\n\r\n", size);
132+
write(fd, buf, strlen(buf));
133+
134+
do {
135+
ret = read(fin, buf, sizeof(buf));
136+
if (ret > 0)
137+
ret = write(fd, buf, ret);
138+
} while (ret == sizeof(buf));
139+
140+
close(fin);
141+
142142
}
143143

144144
int main(int argc, char **argv)
145145
{
146-
int ret, conn_sock;
147-
struct sockaddr_in localadr;
148-
149-
if ((listen_sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
150-
perror("httpd");
151-
return -1;
152-
}
153-
154-
/* set local port reuse, allows server to be restarted in less than 10 secs */
155-
ret = 1;
156-
if (setsockopt(listen_sock, SOL_SOCKET, SO_REUSEADDR, &ret, sizeof(int)) < 0)
157-
perror("SO_REUSEADDR");
158-
159-
/* set small listen buffer to save ktcp memory */
160-
ret = SO_LISTEN_BUFSIZ;
161-
if (setsockopt(listen_sock, SOL_SOCKET, SO_RCVBUF, &ret, sizeof(int)) < 0)
162-
perror("SO_RCVBUF");
163-
164-
localadr.sin_family = AF_INET;
165-
localadr.sin_port = htons(DEF_PORT);
166-
localadr.sin_addr.s_addr = INADDR_ANY;
167-
168-
if (bind(listen_sock, (struct sockaddr *)&localadr, sizeof(struct sockaddr_in)) < 0) {
169-
fprintf(stderr, "httpd: bind error (may already be running)\n");
170-
return 1;
171-
}
172-
if (listen(listen_sock, 5) < 0) {
173-
perror("listen");
174-
return 1;
175-
}
176-
177-
/* become daemon, debug output on 1 and 2*/
178-
if ((ret = fork()) == -1) {
179-
perror("httpd");
180-
return 1;
181-
}
182-
if (ret) exit(0);
183-
ret = open("/dev/null", O_RDWR); /* our log file! */
184-
dup2(ret, 0);
185-
dup2(ret, 1);
186-
dup2(ret, 2);
187-
if (ret > 2)
188-
close(ret);
189-
setsid();
190-
191-
while (1) {
192-
conn_sock = accept(listen_sock, NULL, NULL);
193-
194-
if (conn_sock < 0) {
195-
if (errno == ENOTSOCK)
196-
exit(1);
197-
continue;
198-
}
199-
200-
if ((ret = fork()) == -1)
201-
perror("httpd");
202-
else if (ret == 0) {
203-
close(listen_sock);
204-
process_request(conn_sock);
205-
close(conn_sock);
206-
exit(0);
207-
} else {
208-
close(conn_sock);
209-
waitpid(ret, NULL, 0);
210-
}
211-
}
146+
int ret, conn_sock;
147+
struct sockaddr_in localadr;
148+
149+
if ((listen_sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
150+
perror("httpd");
151+
return -1;
152+
}
153+
154+
/* set local port reuse, allows server to be restarted in less than 10 secs */
155+
ret = 1;
156+
if (setsockopt(listen_sock, SOL_SOCKET, SO_REUSEADDR, &ret, sizeof(int)) < 0)
157+
perror("SO_REUSEADDR");
158+
159+
/* set small listen buffer to save ktcp memory */
160+
ret = SO_LISTEN_BUFSIZ;
161+
if (setsockopt(listen_sock, SOL_SOCKET, SO_RCVBUF, &ret, sizeof(int)) < 0)
162+
perror("SO_RCVBUF");
163+
164+
localadr.sin_family = AF_INET;
165+
localadr.sin_port = htons(DEF_PORT);
166+
localadr.sin_addr.s_addr = INADDR_ANY;
167+
168+
if (bind(listen_sock, (struct sockaddr *)&localadr, sizeof(struct sockaddr_in)) < 0) {
169+
fprintf(stderr, "httpd: bind error (may already be running)\n");
170+
return 1;
171+
}
172+
if (listen(listen_sock, 5) < 0) {
173+
perror("listen");
174+
return 1;
175+
}
176+
177+
/* become daemon, debug output on 1 and 2*/
178+
if ((ret = fork()) == -1) {
179+
perror("httpd");
180+
return 1;
181+
}
182+
if (ret) exit(0);
183+
ret = open("/dev/null", O_RDWR); /* our log file! */
184+
dup2(ret, 0);
185+
dup2(ret, 1);
186+
dup2(ret, 2);
187+
if (ret > 2)
188+
close(ret);
189+
setsid();
190+
191+
while (1) {
192+
conn_sock = accept(listen_sock, NULL, NULL);
193+
194+
if (conn_sock < 0) {
195+
if (errno == ENOTSOCK)
196+
exit(1);
197+
continue;
198+
}
199+
200+
if ((ret = fork()) == -1)
201+
perror("httpd");
202+
else if (ret == 0) {
203+
close(listen_sock);
204+
process_request(conn_sock);
205+
close(conn_sock);
206+
exit(0);
207+
} else {
208+
close(conn_sock);
209+
waitpid(ret, NULL, 0);
210+
}
211+
}
212212
}

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