void usage(void) {
__write1("Usage: mkdir [-pv] [-m mode] directory...\n"
" -p no error if existing, make parent directories as needed\n"
" -m set permission mode (as in chmod), not rwxrwxrwx - umask\n"
" -v print a message for each created directory\n");
exit(0);
}
int main() {
char* method=getenv("REQUEST_METHOD");
if (!method) {
__write1("Content-Type: text/plain\r\n\r\nFatal: $REQUEST_METHOD not set!\n");
return 1;
}
if (!strcmp(method,"GET")) {
char* c=getenv("QUERY_STRING");
__write1("Content-Type: text/plain\r\n\r\n");
if (c)
write(1,c,strlen(c));
else {
__write1("Fatal: $QUERY_STRING not set!\n");
return 1;
}
} else if (!strcmp(method,"POST")) {
char* c=getenv("CONTENT_TYPE");
char* d=getenv("CONTENT_LENGTH");
int l;
if (!c) {
__write1("Content-Type: text/plain\r\n\r\nFatal: $CONTENT_TYPE not set!\n");
return 1;
}
if (!d) {
__write1("Content-Type: text/plain\r\n\r\nFatal: $CONTENT_LENGTH not set!\n");
return 1;
}
{
char* e;
l=strtoul(d,&e,10);
if (e==d || *e) {
__write1("Content-Type: text/plain\r\n\r\nFatal: $CONTENT_LENGTH not a number: ");
__write1(d);
__write1("\n");
return 1;
}
}
__write1("Content-Type: "); __write1(c); __write1("\r\n");
__write1("Content-Length: "); __write1(d); __write1("\r\n\r\n");
while (l>0) {
char buf[2048];
int r;
r=read(0,buf,sizeof(buf));
if (r==-1) return 1;
if (r==0) break;
l-=r;
write(1,buf,r);
}
} else {
puts("Content-Type: text/plain\r\n\r\nFatal: $REQUEST_METHOD is neither GET nor POST!\n");
}
}
