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Add chdir() syscall implementation

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EnderIce2 2024-09-30 23:57:39 +03:00
parent bd0c8d9ad8
commit ddf6a53412
Signed by untrusted user who does not match committer: enderice2
GPG Key ID: EACC3AD603BAB4DD
1 changed files with 18 additions and 6 deletions
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24
syscalls/linux.cpp
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@ -1890,10 +1890,22 @@ static long linux_getcwd(SysFrm *, char *buf, size_t size)
return -ERANGE; return -ERANGE;
} }
strncpy(pBuf, cwd, len); static int linux_chdir(SysFrm *, const char *path)
pBuf[len] = '\0'; {
debug("cwd: \"%s\" with %ld bytes", cwd, len); PCB *pcb = thisProcess;
return len; Memory::VirtualMemoryArea *vma = pcb->vma;
const char *pPath = vma->UserCheckAndGetAddress(path);
if (!pPath)
return -linux_EFAULT;
FileNode *n = fs->GetByPath(pPath, pcb->CWD);
if (!n)
return -linux_ENOENT;
debug("Changed cwd to \"%s\"", n->GetPath().c_str());
pcb->CWD = n;
return 0;
} }
static int linux_mkdir(SysFrm *, const char *pathname, mode_t mode) static int linux_mkdir(SysFrm *, const char *pathname, mode_t mode)
@ -2871,7 +2883,7 @@ static SyscallData LinuxSyscallsTableAMD64[] = {
[__NR_amd64_ftruncate] = {"ftruncate", (void *)nullptr}, [__NR_amd64_ftruncate] = {"ftruncate", (void *)nullptr},
[__NR_amd64_getdents] = {"getdents", (void *)nullptr}, [__NR_amd64_getdents] = {"getdents", (void *)nullptr},
[__NR_amd64_getcwd] = {"getcwd", (void *)linux_getcwd}, [__NR_amd64_getcwd] = {"getcwd", (void *)linux_getcwd},
[__NR_amd64_chdir] = {"chdir", (void *)nullptr}, [__NR_amd64_chdir] = {"chdir", (void *)linux_chdir},
[__NR_amd64_fchdir] = {"fchdir", (void *)nullptr}, [__NR_amd64_fchdir] = {"fchdir", (void *)nullptr},
[__NR_amd64_rename] = {"rename", (void *)nullptr}, [__NR_amd64_rename] = {"rename", (void *)nullptr},
[__NR_amd64_mkdir] = {"mkdir", (void *)linux_mkdir}, [__NR_amd64_mkdir] = {"mkdir", (void *)linux_mkdir},
@ -3253,7 +3265,7 @@ static SyscallData LinuxSyscallsTableI386[] = {
[__NR_i386_link] = {"link", (void *)nullptr}, [__NR_i386_link] = {"link", (void *)nullptr},
[__NR_i386_unlink] = {"unlink", (void *)nullptr}, [__NR_i386_unlink] = {"unlink", (void *)nullptr},
[__NR_i386_execve] = {"execve", (void *)linux_execve}, [__NR_i386_execve] = {"execve", (void *)linux_execve},
[__NR_i386_chdir] = {"chdir", (void *)nullptr}, [__NR_i386_chdir] = {"chdir", (void *)linux_chdir},
[__NR_i386_time] = {"time", (void *)nullptr}, [__NR_i386_time] = {"time", (void *)nullptr},
[__NR_i386_mknod] = {"mknod", (void *)nullptr}, [__NR_i386_mknod] = {"mknod", (void *)nullptr},
[__NR_i386_chmod] = {"chmod", (void *)nullptr}, [__NR_i386_chmod] = {"chmod", (void *)nullptr},