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https://github.com/Pharaoh2k/ps5debug-NG.git
synced 2026-10-21 19:33:05 -05:00
Pharaoh2k
712fe0466b
The variadic __crt_syscall reads each argument as a 64-bit long; a bare int (e.g. the -1 mmap fd) leaves the upper 32 bits undefined and can fail call-site-dependently. Route the remaining bare sites through the typed ps5debug_syscall wrapper (behavior-preserving): net.c select(93), debug.c wait4(7), proc_remote.c ptrace(26) + wait4(7), installer find_pid.c sysctl(202), installer proc_remote.c ptrace(26).
73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-3.0-only
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#include "protocol.h"
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#include "sdk_shim.h"
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#include "net.h"
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int net_send_all(int fd, const void *buf, int len) {
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const char *p = (const char *)buf;
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int left = len;
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while (left > 0) {
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int chunk = (left > NET_MAX_LENGTH) ? NET_MAX_LENGTH : left;
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ssize_t n = send(fd, p, chunk, MSG_NOSIGNAL);
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if (n <= 0) return -1;
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p += n;
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left -= (int)n;
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}
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return 0;
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}
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int net_recv_all(int fd, void *buf, int len, int force) {
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char *p = (char *)buf;
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int left = len;
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while (left > 0) {
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int chunk = (left > NET_MAX_LENGTH) ? NET_MAX_LENGTH : left;
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int flags = force ? MSG_WAITALL : 0;
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ssize_t n = recv(fd, p, chunk, flags);
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if (n <= 0) return -1;
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p += n;
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left -= (int)n;
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}
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return 0;
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}
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static inline uint32_t bitswap32(uint32_t x) {
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return ((x >> 1) & 0x55555555u) | ((x << 1) & 0xAAAAAAAAu);
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}
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int net_send_int32(int fd, uint32_t value) {
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uint32_t wire = bitswap32(value);
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return net_send_all(fd, &wire, sizeof(wire));
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}
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extern long __crt_syscall(long sysno, ...);
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int net_select(int fd, void *readfds, void *writefds, void *exceptfds, void *timeout) {
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// ps5debug_syscall (typed long params) promotes every arg before the varargs hop,
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// so int/pointer args can't arrive with garbage upper bits. Behavior-identical to
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// the prior __crt_syscall(93, ...) for these already-clean values.
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return (int)ps5debug_syscall(93 /*select*/, (long)fd, (long)readfds, (long)writefds,
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(long)exceptfds, (long)timeout, 0L);
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}
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int net_get_ip_address(char *out) {
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if (sceNetCtlInit() < 0) return -1;
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uint8_t info[0x100];
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int rc = sceNetCtlGetInfo(0xE, info);
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if (rc < 0) return -1;
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memcpy(out, info, 0x10);
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sceNetCtlTerm();
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return rc;
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}
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void *net_alloc_buffer(uint32_t size) {
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if (size == 0) return NULL;
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void *p = malloc(size);
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if (!p) return NULL;
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volatile char *cp = (volatile char *)p;
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for (uint32_t i = 0; i < size; i += 0x1000) cp[i] = 0;
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if (size > 0) cp[size - 1] = 0;
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return p;
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}
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