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https://github.com/RGBCube/serenity
synced 2025-07-25 19:27:44 +00:00
LibC: Make errno codes be #defines instead of enum values.
It turns out that a lot of 3rd party software does things like:
#ifdef EINTR
...
#endif
This won't work if EINTR is an enum. So much for that nice idea.
This commit is contained in:
Andreas Kling
parent
83e78648e4
commit
424368034b
4 changed files with 146 additions and 87 deletions
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@ -64,7 +64,9 @@ static void make_shell(int ptm_fd)
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perror("ioctl(TIOCSCTTY)");
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perror("ioctl(TIOCSCTTY)");
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exit(1);
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exit(1);
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}
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}
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rc = execvp("/bin/sh", nullptr);
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char* args[] = { "/bin/sh", nullptr };
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char* envs[] = { "TERM=vt100", nullptr };
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rc = execve("/bin/sh", args, envs);
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if (rc < 0) {
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if (rc < 0) {
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perror("execve");
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perror("execve");
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exit(1);
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exit(1);
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@ -7,7 +7,6 @@ enum KSuccessTag { KSuccess };
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class KResult {
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class KResult {
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public:
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public:
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explicit KResult(__errno_value e) : m_error(-e) { }
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explicit KResult(int negative_e) : m_error(negative_e) { ASSERT(negative_e <= 0); }
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explicit KResult(int negative_e) : m_error(negative_e) { ASSERT(negative_e <= 0); }
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KResult(KSuccessTag) : m_error(0) { }
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KResult(KSuccessTag) : m_error(0) { }
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operator int() const { return m_error; }
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operator int() const { return m_error; }
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@ -1,83 +1,73 @@
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#pragma once
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#pragma once
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#define __ENUMERATE_ALL_ERRORS \
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#define ESUCCESS 0
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__ERROR(ESUCCESS, "Success (not an error)") \
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#define EPERM 1
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__ERROR(EPERM, "Operation not permitted") \
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#define ENOENT 2
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__ERROR(ENOENT, "No such file or directory") \
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#define ESRCH 3
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__ERROR(ESRCH, "No such process") \
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#define EINTR 4
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__ERROR(EINTR, "Interrupted syscall") \
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#define EIO 5
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__ERROR(EIO, "I/O error") \
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#define ENXIO 6
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__ERROR(ENXIO, "No such device or address") \
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#define E2BIG 7
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__ERROR(E2BIG, "Argument list too long") \
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#define ENOEXEC 8
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__ERROR(ENOEXEC, "Exec format error") \
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#define EBADF 9
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__ERROR(EBADF, "Bad fd number") \
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#define ECHILD 10
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__ERROR(ECHILD, "No child processes") \
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#define EAGAIN 11
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__ERROR(EAGAIN, "Try again") \
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#define ENOMEM 12
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__ERROR(ENOMEM, "Out of memory") \
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#define EACCES 13
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__ERROR(EACCES, "Permission denied") \
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#define EFAULT 14
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__ERROR(EFAULT, "Bad address") \
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#define ENOTBLK 15
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__ERROR(ENOTBLK, "Block device required") \
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#define EBUSY 16
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__ERROR(EBUSY, "Device or resource busy") \
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#define EEXIST 17
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__ERROR(EEXIST, "File already exists") \
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#define EXDEV 18
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__ERROR(EXDEV, "Cross-device link") \
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#define ENODEV 19
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__ERROR(ENODEV, "No such device") \
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#define ENOTDIR 20
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__ERROR(ENOTDIR, "Not a directory") \
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#define EISDIR 21
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__ERROR(EISDIR, "Is a directory") \
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#define EINVAL 22
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__ERROR(EINVAL, "Invalid argument") \
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#define ENFILE 23
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__ERROR(ENFILE, "File table overflow") \
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#define EMFILE 24
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__ERROR(EMFILE, "Too many open files") \
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#define ENOTTY 25
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__ERROR(ENOTTY, "Not a TTY") \
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#define ETXTBSY 26
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__ERROR(ETXTBSY, "Text file busy") \
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#define EFBIG 27
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__ERROR(EFBIG, "File too large") \
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#define ENOSPC 28
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__ERROR(ENOSPC, "No space left on device") \
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#define ESPIPE 29
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__ERROR(ESPIPE, "Illegal seek") \
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#define EROFS 30
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__ERROR(EROFS, "Read-only filesystem") \
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#define EMLINK 31
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__ERROR(EMLINK, "Too many links") \
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#define EPIPE 32
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__ERROR(EPIPE, "Broken pipe") \
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#define ERANGE 33
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__ERROR(ERANGE, "Range error") \
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#define ENAMETOOLONG 34
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__ERROR(ENAMETOOLONG, "Name too long") \
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#define ELOOP 35
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__ERROR(ELOOP, "Too many symlinks") \
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#define EOVERFLOW 36
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__ERROR(EOVERFLOW, "Overflow") \
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#define EOPNOTSUPP 37
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__ERROR(EOPNOTSUPP, "Operation not supported") \
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#define ENOSYS 38
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__ERROR(ENOSYS, "No such syscall") \
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#define ENOTIMPL 39
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__ERROR(ENOTIMPL, "Not implemented") \
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#define EAFNOSUPPORT 40
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__ERROR(EAFNOSUPPORT, "Address family not supported") \
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#define ENOTSOCK 41
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__ERROR(ENOTSOCK, "Not a socket") \
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#define EADDRINUSE 42
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__ERROR(EADDRINUSE, "Address in use") \
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#define EWHYTHO 43
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__ERROR(EWHYTHO, "Failed without setting an error code (Bug!)") \
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#define ENOTEMPTY 44
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__ERROR(ENOTEMPTY, "Directory not empty") \
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#define EDOM 45
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__ERROR(EDOM, "Math argument out of domain") \
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#define ECONNREFUSED 46
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__ERROR(ECONNREFUSED, "Connection refused") \
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#define EADDRNOTAVAIL 47
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__ERROR(EADDRNOTAVAIL, "Address not available") \
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#define EISCONN 48
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__ERROR(EISCONN, "Already connected") \
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#define ECONNABORTED 49
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__ERROR(ECONNABORTED, "Connection aborted") \
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#define EALREADY 50
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__ERROR(EALREADY, "Connection already in progress") \
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#define ECONNRESET 51
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__ERROR(ECONNRESET, "Connection reset") \
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#define EDESTADDRREQ 52
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__ERROR(EDESTADDRREQ, "Desination address required") \
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#define EHOSTUNREACH 53
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__ERROR(EHOSTUNREACH, "Host unreachable") \
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#define EILSEQ 54
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__ERROR(EILSEQ, "Illegal byte sequence") \
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#define EMSGSIZE 55
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__ERROR(EMSGSIZE, "Message size") \
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#define ENETDOWN 56
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__ERROR(ENETDOWN, "Network down") \
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#define ENETUNREACH 57
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__ERROR(ENETUNREACH, "Network unreachable") \
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#define ENETRESET 58
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__ERROR(ENETRESET, "Network reset") \
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#define ENOBUFS 59
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__ERROR(ENOBUFS, "No buffer space") \
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#define ENOLCK 60
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__ERROR(ENOLCK, "No lock available") \
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#define ENOMSG 61
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__ERROR(ENOMSG, "No message") \
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#define ENOPROTOOPT 62
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__ERROR(ENOPROTOOPT, "No protocol option") \
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#define ENOTCONN 63
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__ERROR(ENOTCONN, "Not connected") \
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#define EWOULDBLOCK 64
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__ERROR(EWOULDBLOCK, "Operation would block") \
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#define EPROTONOSUPPORT 65
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__ERROR(EPROTONOSUPPORT,"Protocol not supported") \
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#define EDEADLK 66
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__ERROR(EDEADLK, "Resource deadlock would occur") \
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#define ETIMEDOUT 67
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__ERROR(ETIMEDOUT, "Timed out") \
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#define EPROTOTYPE 68
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__ERROR(EPROTOTYPE, "Wrong protocol type") \
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#define EINPROGRESS 69
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__ERROR(EINPROGRESS, "Operation in progress") \
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#define EMAXERRNO 70
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__ERROR(EMAXERRNO, "The highest errno +1 :^)")
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enum __errno_value {
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#undef __ENUMERATE_ERROR
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#define __ERROR(a, b) a,
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__ENUMERATE_ALL_ERRORS
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#undef __ENUMERATE_ERROR
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__errno_count
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};
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@ -242,11 +242,79 @@ char* strncat(char *dest, const char *src, size_t n)
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}
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}
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const char* sys_errlist[] = {
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const char* sys_errlist[] = {
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#undef __ERROR
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"Success (not an error)",
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#define __ERROR(a, b) b,
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"Operation not permitted",
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__ENUMERATE_ALL_ERRORS
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"No such file or directory",
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#undef __ERROR
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"No such process",
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"Interrupted syscall",
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"I/O error",
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"No such device or address",
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"Argument list too long",
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"Exec format error",
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"Bad fd number",
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"No child processes",
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"Try again",
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"Out of memory",
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"Permission denied",
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"Bad address",
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"Block device required",
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"Device or resource busy",
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"File already exists",
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"Cross-device link",
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"No such device",
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"Not a directory",
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"Is a directory",
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"Invalid argument",
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"File table overflow",
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"Too many open files",
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"Not a TTY",
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"Text file busy",
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"File too large",
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"No space left on device",
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"Illegal seek",
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"Read-only filesystem",
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"Too many links",
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"Broken pipe",
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"Range error",
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"Name too long",
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"Too many symlinks",
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"Overflow",
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"Operation not supported",
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"No such syscall",
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"Not implemented",
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"Address family not supported",
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"Not a socket",
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"Address in use",
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"Failed without setting an error code (bug!)",
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"Directory not empty",
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"Math argument out of domain",
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"Connection refused",
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"Address not available",
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"Already connected",
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"Connection aborted",
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"Connection already in progress",
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"Connection reset",
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"Desination address required",
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"Host unreachable",
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"Illegal byte sequence",
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"Message size",
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"Network down",
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"Network unreachable",
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"Network reset",
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"No buffer space",
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"No lock available",
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"No message",
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"No protocol option",
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"Not connected",
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"Operation would block",
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"Protocol not supported",
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"Resource deadlock would occur",
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"Timed out",
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"Wrong protocol type",
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"Operation in progress",
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"The highest errno +1 :^)",
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};
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};
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int sys_nerr = EMAXERRNO;
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int sys_nerr = EMAXERRNO;
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char* strerror(int errnum)
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char* strerror(int errnum)
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