int main(int argc, char *argv[])
{
int dirflag;
char *srcname, *destname, *lastarg;
/* Symbolic link? */
if (argv[1][0] == '-') {
#if defined(S_ISLNK) && 0 /* FIXME */
if (strcmp(argv[1], "-s") == 0) {
if (argc != 4) {
fprintf(stderr, "%s: wrong number of arguments for symbolic link\n", argv[0]);
return 1;
}
if (symlink(argv[2], argv[3]) < 0) {
perror(argv[3]);
return 1;
}
return 0;
}
#endif
fprintf(stderr, "%s: unknown option %s\n", argv[0], argv[1]);
return 1;
}
/* Here for normal hard links. */
lastarg = argv[argc - 1];
dirflag = isadir(lastarg);
if ((argc > 3) && !dirflag) {
fprintf(stderr, "%s: not a directory\n", lastarg);
return 1;
}
while (argc-- > 2) {
srcname = *(++argv);
if (access(srcname, 0) < 0) {
perror(srcname);
continue;
}
destname = lastarg;
if (dirflag)
destname = buildname(destname, srcname);
if (link(srcname, destname) < 0) {
perror(destname);
continue;
}
}
return 0;
}
char *r2adir(
char *indir)
{
char *mydir;
char *outdir;
char *ptr;
if (indir == NULL || indir[0] == 0)
{
LOG(LOG_ERR, "indir must not be NULL or an empty string");
return (NULL);
}
if (isadir(indir) <= 0)
return (NULL);
// get current dir
mydir = (char *)calloc(PATH_MAX, sizeof(char));
if (mydir == NULL)
{
LOG(LOG_ERR, "out of memory");
return (NULL);
}
outdir = (char *)calloc(PATH_MAX, sizeof(char));
if (outdir == NULL)
{
free((void *)mydir);
LOG(LOG_ERR, "out of memory");
return (NULL);
}
ptr = getcwd(mydir, PATH_MAX);
if (ptr == NULL)
{
free((void *)mydir);
free((void *)outdir);
ERR_LOG(errno, NULL, "failed to get current working directory");
return (NULL);
}
if (chdir(indir) < 0)
{
free((void *)mydir);
free((void *)outdir);
ERR_LOG(errno, NULL, "failed to change directory to %s", indir);
return (NULL);
}
ptr = getcwd(outdir, PATH_MAX);
if (chdir(mydir))
abort();
free((void *)mydir);
if (ptr == NULL)
{
free((void *)outdir);
ERR_LOG(errno, NULL, "unable to get current working directory");
return (NULL);
}
return (outdir);
}
void process_rq(char* rq , int fd)
{
char cmd[BUFSIZ] , arg[BUFSIZ] ;
if(fork() != 0)
return ;
strcpy(arg , "./");
if(sscanf(rq , "%s %s" , cmd , arg+2) != 2)
return ;
if(strcmp(cmd , "GET") != 0)
{
if(strcmp(cmd , "HEAD") != 0)
cannot_do(fd);
else if(not_exist(arg))
do_404(arg , fd);
else
{
if(isadir(arg))
{
strcat(arg , "index.html");
printf("modified arg : %s\n" ,arg);
if(not_exist(arg))
do_404(arg , fd);
}
do_process_head(arg , fd);
}
}
else if(not_exist(arg))
do_404(arg , fd);
else if(isadir(arg))
do_ls(arg , fd);
else if(ends_in_cgi(arg))
do_exec(arg ,fd);
else
do_cat(arg , fd);
}
/* ------------------------------------------------------ *
process_rq( char *rq, int fd )
do what the request asks for and write reply to fd
handles request in a new process
rq is HTTP command: GET /foo/bar.html HTTP/1.0
------------------------------------------------------ */
process_rq( char *rq, int fd)
{
char cmd[BUFSIZ], arg[BUFSIZ];
if ( sscanf(rq, "%s%s", cmd, arg) != 2 )
return;
sanitize(arg);
printf("sanitized version is %s\n", arg);
if ( strcmp(cmd,"GET") != 0 )
not_implemented();
else if ( built_in(arg, fd) )
;
else if ( not_exist( arg ) )
do_404(arg, fd);
else if ( isadir( arg ) )
do_ls( arg, fd );
else
do_cat( arg, fd );
}
void process_rq(char *rq, int fd)
{
char cmd[BUFSIZ], arg[BUFSIZ];
if (fork() != 0)
return;
strcpy(arg, "./");
if (sscanf(rq, "%s%s", cmd, arg+2) != 2)
return;
if (strcmp(cmd, "GET") != 0)
cannot_do(fd);
else if (not_exist(arg))
do_404(arg, fd);
else if (isadir(arg))
do_ls(arg, fd);
else if (ends_in_cgi(arg))
do_exec(arg, fd);
else
do_cat(arg, fd);
}
process_rq( char *rq, int fd )
{
char cmd[BUFSIZ], arg[BUFSIZ];
/* create a new process and return if not the child */
if ( fork() != 0 )
return;
strcpy(arg, "./"); /* precede args with ./ */
if ( sscanf(rq, "%s%s", cmd, arg+2) != 2 )
return;
if ( strcmp(cmd,"GET") != 0 )
cannot_do(fd);
else if ( not_exist( arg ) )
do_404(arg, fd );
else if ( isadir( arg ) )
do_ls( arg, fd );
else if ( ends_in_cgi( arg ) )
do_exec( arg, fd );
else
do_cat( arg, fd );
}