// File: /workspace/github_c_makefile_star2_O2/genometools[P]genometools/src/external/samtools-0.1.18/knetfile.c
// Function: khttp_connect_file
int khttp_connect_file(knetFile *fp)
{
	int ret, l = 0;
	char *buf, *p;
	if (fp->fd != -1) netclose(fp->fd);
	fp->fd = socket_connect(fp->host, fp->port);
	buf = calloc(0x10000, 1); // FIXME: I am lazy... But in principle, 64KB should be large enough.
	l += sprintf(buf + l, "GET %s HTTP/1.0\r\nHost: %s\r\n", fp->path, fp->http_host);
    l += sprintf(buf + l, "Range: bytes=%lld-\r\n", (long long)fp->offset);
	l += sprintf(buf + l, "\r\n");
	netwrite(fp->fd, buf, l);
	l = 0;
	while (netread(fp->fd, buf + l, 1)) { // read HTTP header; FIXME: bad efficiency
		if (buf[l] == '\n' && l >= 3)
			if (strncmp(buf + l - 3, "\r\n\r\n", 4) == 0) break;
		++l;
	}
	buf[l] = 0;
	if (l < 14) { // prematured header
		netclose(fp->fd);
		fp->fd = -1;
		return -1;
	}
	ret = strtol(buf + 8, &p, 0); // HTTP return code
	if (ret == 200 && fp->offset>0) { // 200 (complete result); then skip beginning of the file
		off_t rest = fp->offset;
		while (rest) {
			off_t l = rest < 0x10000? rest : 0x10000;
			rest -= my_netread(fp->fd, buf, l);
		}
	} else if (ret != 206 && ret != 200) {
		free(buf);
		fprintf(stderr, "[khttp_connect_file] fail to open file (HTTP code: %d).\n", ret);
		netclose(fp->fd);
		fp->fd = -1;
		return -1;
	}
	free(buf);
	fp->is_ready = 1;
	return 0;
}

// Assembly:
pushq %rbp
pushq %r15
pushq %r14
pushq %r13
pushq %r12
pushq %rbx
pushq %rax
movq %rdi, %rbx
movl 0x4(%rdi), %edi
cmpl $-0x1, %edi
je 0x2a1b73
callq 0x2e740
movq 0x10(%rbx), %rdi
movq 0x18(%rbx), %rsi
callq 0x2a1423
movl %eax, 0x4(%rbx)
pushq $0x1
popq %r15
movl $0x10000, %edi          # imm = 0x10000
movq %r15, %rsi
callq 0x31f40
movq %rax, %r14
movq 0x70(%rbx), %rdx
movq 0x78(%rbx), %rcx
leaq 0xba2c0(%rip), %rsi     # 0x35be66
xorl %r12d, %r12d
movq %rax, %rdi
xorl %eax, %eax
callq 0x303f0
movslq %eax, %r13
leaq (%r14,%r13), %rdi
movq 0x8(%rbx), %rdx
leaq 0xba2bd(%rip), %rsi     # 0x35be82
xorl %eax, %eax
callq 0x303f0
leal (%rax,%r13), %ecx
movslq %ecx, %rcx
movw $0xa0d, (%r14,%rcx)     # imm = 0xA0D
movb $0x0, 0x2(%r14,%rcx)
leal 0x2(%rax,%r13), %eax
movl 0x4(%rbx), %edi
movslq %eax, %rdx
movq %r14, %rsi
callq 0x32a30
pushq $0x4
popq %r13
movl 0x4(%rbx), %edi
leaq (%r14,%r12), %rbp
movq %rbp, %rsi
movq %r15, %rdx
callq 0x2f180
testq %rax, %rax
je 0x2a1c3a
cmpq $0x3, %r12
jb 0x2a1c35
cmpb $0xa, (%rbp)
jne 0x2a1c35
leaq (%r14,%r12), %rdi
addq $-0x3, %rdi
leaq 0xba26e(%rip), %rsi     # 0x35be97
movq %r13, %rdx
callq 0x2f1b0
testl %eax, %eax
je 0x2a1c3a
incq %r12
jmp 0x2a1bf7
movb $0x0, (%r14,%r12)
cmpq $0xd, %r12
ja 0x2a1c56
movl 0x4(%rbx), %edi
callq 0x2e740
orl $-0x1, 0x4(%rbx)
pushq $-0x1
popq %rbp
jmp 0x2a1cbd
movq %r14, %rdi
addq $0x8, %rdi
movq %rsp, %rsi
xorl %ebp, %ebp
xorl %edx, %edx
callq 0x30c20
movq %rax, %r15
cmpl $0xce, %r15d
je 0x2a1cae
cmpl $0xc8, %r15d
jne 0x2a1cce
movq 0x8(%rbx), %r15
testq %r15, %r15
jle 0x2a1cae
movl $0x10000, %r12d         # imm = 0x10000
testq %r15, %r15
je 0x2a1cae
cmpq %r12, %r15
movl $0x10000, %edx          # imm = 0x10000
cmovlq %r15, %rdx
movl 0x4(%rbx), %edi
movq %r14, %rsi
callq 0x2a1cf6
subq %rax, %r15
jmp 0x2a1c8d
movq %r14, %rdi
callq 0x33058
movl $0x1, 0x40(%rbx)
movl %ebp, %eax
addq $0x8, %rsp
popq %rbx
popq %r12
popq %r13
popq %r14
popq %r15
popq %rbp
retq
movq %r14, %rdi
callq 0x33058
movq 0x1692d3(%rip), %rax    # 0x40afb0
movq (%rax), %rdi
leaq 0xba1b5(%rip), %rsi     # 0x35be9c
movl %r15d, %edx
xorl %eax, %eax
callq 0x32960
jmp 0x2a1c45