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More warns cleanups and misc cleanups:

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1) Make fetch_mode a pointer 'cos we can just use the optarg.
2) Constness.
3) Add/complete prototypes.
4) Change an int to a socklen_t.
5) Don't use C++ style comments.
6) Check return values from read and fork a little more carefully.
7) Avoid closing an uninitialised int.
8) Get rid of unneeded extern declarations.
This commit is contained in:
David Malone 2003-04-05 15:27:27 +00:00
parent 35e4d538fc
commit cda5ba2ceb
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=113126
1 changed files with 31 additions and 25 deletions
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56
release/picobsd/tinyware/simple_httpd/simple_httpd.c
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@ -52,10 +52,16 @@ int daemonize = 1;
int verbose = 0;
int http_sock, con_sock;
char fetch_mode[100];
const char *fetch_mode = NULL;
char homedir[100];
char logfile[80];
char *adate();
char *adate(void);
void init_servconnection(void);
void http_date(void);
void http_output(const char *html);
void http_request(void);
void log_line(char *req);
void wait_connection(void);
struct hostent *hst;
struct sockaddr_in source;
@ -66,13 +72,13 @@ static char httpd_server_ident[] = "Server: FreeBSD/PicoBSD simple_httpd 1.1\r";
static char http_200[] = "HTTP/1.0 200 OK\r";
/* Two parts, HTTP Header and then HTML */
static char *http_404[2] =
static const char *http_404[2] =
{"HTTP/1.0 404 Not found\r\n",
"<HTML><HEAD><TITLE>Error</TITLE></HEAD><BODY><H1>Error 404</H1>\
Not found - file doesn't exist or you do not have permission.\n</BODY></HTML>\r\n"
};
static char *http_405[2] =
static const char *http_405[2] =
{"HTTP/1.0 405 Method Not allowed\r\nAllow: GET,HEAD\r\n",
"<HTML><HEAD><TITLE>Error</TITLE></HEAD><BODY><H1>Error 405</H1>\
This server only supports GET and HEAD requests.\n</BODY></HTML>\r\n"
@ -108,7 +114,7 @@ init_servconnection(void)
void
wait_connection(void)
{
int lg;
socklen_t lg;
lg = sizeof(struct sockaddr_in);
@ -131,14 +137,14 @@ http_date(void)
tl = time(NULL);
strftime(buff, 50, "Date: %a, %d %h %Y %H:%M:%S %Z\r\n", gmtime(&tl));
write(con_sock, buff, strlen(buff));
//return(buff);
/* return(buff); */
}
/*
* Send data to the open socket
*/
void
http_output(char *html)
http_output(const char *html)
{
write(con_sock, html, strlen(html));
write(con_sock, "\r\n", 2);
@ -199,15 +205,15 @@ http_request(void)
int fd, lg, i;
int cmd = 0;
char *p, *par;
char *filename, *c;
const char *filename, *c;
struct stat file_status;
char req[1024];
char buff[8192];
lg = read(con_sock, req, 1024);
if (p=strstr(req,"\n")) *p=0;
if (p=strstr(req,"\r")) *p=0;
if ((p=strstr(req,"\n"))) *p=0;
if ((p=strstr(req,"\r"))) *p=0;
log_line(req);
@ -233,7 +239,7 @@ http_request(void)
filename = strtok(NULL, " ");
c = strtok(NULL, " ");
if (fetch_mode[0] != NULL) strcpy(filename,fetch_mode);
if (fetch_mode != NULL) filename=fetch_mode;
if (filename == NULL ||
strlen(filename)==1) filename="/index.html";
@ -243,7 +249,7 @@ http_request(void)
if (!strncmp(filename,"cgi-bin/",8))
{
par=0;
if (par=strstr(filename,"?"))
if ((par=strstr(filename,"?")))
{
*par=0;
par++;
@ -256,7 +262,7 @@ http_request(void)
{
close(1);
dup(con_sock);
//printf("HTTP/1.0 200 OK\nContent-type: text/html\n\n\n");
/*printf("HTTP/1.0 200 OK\nContent-type: text/html\n\n\n");*/
printf("HTTP/1.0 200 OK\r\n");
/* Plug in environment variable, others in log_line */
putenv("SERVER_SOFTWARE=FreeBSD/PicoBSD");
@ -296,14 +302,14 @@ http_request(void)
if (fstat(fd, &file_status) < 0) {
http_output(http_404[0]);
http_output(http_404[1]);
goto end_request;
goto end_request2;
}
/* Is it a regular file? */
if (!S_ISREG(file_status.st_mode)) {
http_output(http_404[0]);
http_output(http_404[1]);
goto end_request;
goto end_request2;
}
/* Past this point we are serving either a GET or HEAD */
@ -335,12 +341,13 @@ http_request(void)
/* Send data only if GET request */
if (cmd == 1) {
while (lg = read(fd, buff, 8192))
while ((lg = read(fd, buff, 8192)) > 0)
write(con_sock, buff, lg);
}
end_request:
end_request2:
close(fd);
end_request:
close(con_sock);
}
@ -353,8 +360,6 @@ http_request(void)
int
main(int argc, char *argv[])
{
extern char *optarg;
extern int optind;
int ch, ld;
int httpd_group = 65534;
pid_t server_pid;
@ -381,7 +386,7 @@ main(int argc, char *argv[])
case 'f':
daemonize = 0;
verbose = 1;
strcpy(fetch_mode,optarg);
fetch_mode = optarg;
break;
case 'g':
httpd_group = atoi(optarg);
@ -412,7 +417,7 @@ main(int argc, char *argv[])
}
/* Do we really have rights in the html directory? */
if (fetch_mode[0] == NULL) {
if (fetch_mode == NULL) {
if (chdir(homedir)) {
perror("chdir");
puts(homedir);
@ -432,13 +437,13 @@ main(int argc, char *argv[])
if (verbose) {
printf("Server started with options \n");
printf("port: %d\n",http_port);
if (fetch_mode[0] == NULL) printf("html home: %s\n",homedir);
if (fetch_mode == NULL) printf("html home: %s\n",homedir);
if (daemonize) printf("logfile: %s\n",logfile);
}
/* httpd is spawned */
if (daemonize) {
if (server_pid = fork()) {
if ((server_pid = fork()) != 0) {
wait3(0,WNOHANG,0);
if (verbose) printf("pid: %d\n",server_pid);
exit(0);
@ -446,7 +451,7 @@ main(int argc, char *argv[])
wait3(0,WNOHANG,0);
}
if (fetch_mode[0] == NULL) setpgrp(0,httpd_group);
if (fetch_mode == NULL) setpgrp(0,httpd_group);
/* How many connections do you want?
* Keep this lower than the available number of processes
@ -469,7 +474,8 @@ main(int argc, char *argv[])
}
char *adate()
char *
adate(void)
{
static char out[50];
time_t now;