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update errno perror strings #642

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Merged
adriweb merged 1 commit into from
Sep 26, 2025
Merged

update errno perror strings #642

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91 changes: 79 additions & 12 deletions src/libc/errno_str.c
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Original file line number Diff line number Diff line change
Expand Up @@ -6,11 +6,85 @@

static char const * const errno_strings[] = {
"no error",
"permission error",
"invalid argument",
"io error",
"math domain error",
"math range error",
"EPERM",
"EINVAL",
"EIO",
"EDOM",
"ERANGE",
"EILSEQ",
/* C++ errno */
"E2BIG",
"EACCES",
"EADDRINUSE",
"EADDRNOTAVAIL",
"EAFNOSUPPORT",
"EAGAIN",
"EALREADY",
"EBADF",
"EBADMSG",
"EBUSY",
"ECANCELED",
"ECHILD",
"ECONNABORTED",
"ECONNREFUSED",
"ECONNRESET",
"EDEADLK",
"EDESTADDRREQ",
"EEXIST",
"EFAULT",
"EFBIG",
"EHOSTUNREACH",
"EIDRM",
"EINPROGRESS",
"EINTR",
"EISCONN",
"EISDIR",
"ELOOP",
"EMFILE",
"EMLINK",
"EMSGSIZE",
"ENAMETOOLONG",
"ENETDOWN",
"ENETRESET",
"ENETUNREACH",
"ENFILE",
"ENOBUFS",
"ENODATA",
"ENODEV",
"ENOENT",
"ENOEXEC",
"ENOLCK",
"ENOLINK",
"ENOMEM",
"ENOMSG",
"ENOPROTOOPT",
"ENOSPC",
"ENOSR",
"ENOSTR",
"ENOSYS",
"ENOTCONN",
"ENOTDIR",
"ENOTEMPTY",
"ENOTRECOVERABLE",
"ENOTSOCK",
"ENOTSUP",
"ENOTTY",
"ENXIO",
"EOPNOTSUPP",
"EOVERFLOW",
"EOWNERDEAD",
"EPIPE",
"EPROTO",
"EPROTONOSUPPORT",
"EPROTOTYPE",
"EROFS",
"ESPIPE",
"ESRCH",
"ETIME",
"ETIMEDOUT",
"ETXTBSY",
"EWOULDBLOCK",
"EXDEV",
};

static char * const unknown_errno_string = "unknown error -8388608";
Expand All @@ -35,13 +109,6 @@ char* strerror(int errnum) {
return (char*)errno_strings[errnum];
}

#if 0
/** disabled until the prototypes for this function are defined */
size_t strerrorlen_s(errno_t errnum) {
return strlen(strerror(errnum));
}
#endif

void perror(const char *str) {
if (str != NULL && *str != '\0') {
fputs(str, stderr);
Expand Down
48 changes: 24 additions & 24 deletions src/libc/include/errno.h
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Original file line number Diff line number Diff line change
Expand Up @@ -6,31 +6,31 @@
#define EIO 3 /* io error */
#define EDOM 4 /* math domain error */
#define ERANGE 5 /* math range error */
#define EILSEQ 6 /* Illegal byte sequence (C95) */

// Not used, but defined for compatibility
#define E2BIG 6 /* Argument list too long */
#define EACCES 7 /* Permission denied */
#define EADDRINUSE 8 /* Address in use */
#define EADDRNOTAVAIL 9 /* Address not available */
#define EAFNOSUPPORT 10 /* Address family not supported */
#define EAGAIN 11 /* Resource unavailable, try again */
#define EALREADY 12 /* Connection already in progress */
#define EBADF 13 /* Bad file descriptor */
#define EBADMSG 14 /* Bad message */
#define EBUSY 15 /* Device or resource busy */
#define ECANCELED 16 /* Operation canceled */
#define ECHILD 17 /* No child processes */
#define ECONNABORTED 18 /* Connection aborted */
#define ECONNREFUSED 19 /* Connection refused */
#define ECONNRESET 20 /* Connection reset */
#define EDEADLK 21 /* Resource deadlock avoided */
#define EDESTADDRREQ 22 /* Destination address required */
#define EEXIST 23 /* File exists */
#define EFAULT 24 /* Bad address */
#define EFBIG 25 /* File too large */
#define EHOSTUNREACH 26 /* Host is unreachable */
#define EIDRM 27 /* Identifier removed */
#define EILSEQ 28 /* Illegal byte sequence */
/* C++ errno */
#define E2BIG 7 /* Argument list too long */
#define EACCES 8 /* Permission denied */
#define EADDRINUSE 9 /* Address in use */
#define EADDRNOTAVAIL 10 /* Address not available */
#define EAFNOSUPPORT 11 /* Address family not supported */
#define EAGAIN 12 /* Resource unavailable, try again */
#define EALREADY 13 /* Connection already in progress */
#define EBADF 14 /* Bad file descriptor */
#define EBADMSG 15 /* Bad message */
#define EBUSY 16 /* Device or resource busy */
#define ECANCELED 17 /* Operation canceled */
#define ECHILD 18 /* No child processes */
#define ECONNABORTED 19 /* Connection aborted */
#define ECONNREFUSED 20 /* Connection refused */
#define ECONNRESET 21 /* Connection reset */
#define EDEADLK 22 /* Resource deadlock avoided */
#define EDESTADDRREQ 23 /* Destination address required */
#define EEXIST 24 /* File exists */
#define EFAULT 25 /* Bad address */
#define EFBIG 26 /* File too large */
#define EHOSTUNREACH 27 /* Host is unreachable */
#define EIDRM 28 /* Identifier removed */
#define EINPROGRESS 29 /* Operation in progress */
#define EINTR 30 /* Interrupted function */
#define EISCONN 31 /* Socket is connected */
Expand Down
4 changes: 2 additions & 2 deletions test/standalone/errno/autotest.json
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Original file line number Diff line number Diff line change
Expand Up @@ -23,15 +23,15 @@
"start": "vram_start",
"size": "vram_16_size",
"expected_CRCs": [
"B0BE2F4E"
"9523A08A"
]
},
"2": {
"description": "Invalid input screen",
"start": "vram_start",
"size": "vram_16_size",
"expected_CRCs": [
"29401BEE"
"382A9C66"
]
},
"3": {
Expand Down
112 changes: 98 additions & 14 deletions test/standalone/errno/src/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -6,20 +6,92 @@
#include <errno.h>
#include <limits.h>

#define ARRAY_LENGTH(x) (sizeof(x) / sizeof((x)[0]))

/** @note assumes that the following strings are used: */
#if 0
static char const * const errno_str[] = {
static char const * const truth[] = {
"no error",
"permission error",
"invalid argument",
"io error",
"math domain error",
"math range error",
"EPERM",
"EINVAL",
"EIO",
"EDOM",
"ERANGE",
"EILSEQ",
/* C++ errno */
"E2BIG",
"EACCES",
"EADDRINUSE",
"EADDRNOTAVAIL",
"EAFNOSUPPORT",
"EAGAIN",
"EALREADY",
"EBADF",
"EBADMSG",
"EBUSY",
"ECANCELED",
"ECHILD",
"ECONNABORTED",
"ECONNREFUSED",
"ECONNRESET",
"EDEADLK",
"EDESTADDRREQ",
"EEXIST",
"EFAULT",
"EFBIG",
"EHOSTUNREACH",
"EIDRM",
"EINPROGRESS",
"EINTR",
"EISCONN",
"EISDIR",
"ELOOP",
"EMFILE",
"EMLINK",
"EMSGSIZE",
"ENAMETOOLONG",
"ENETDOWN",
"ENETRESET",
"ENETUNREACH",
"ENFILE",
"ENOBUFS",
"ENODATA",
"ENODEV",
"ENOENT",
"ENOEXEC",
"ENOLCK",
"ENOLINK",
"ENOMEM",
"ENOMSG",
"ENOPROTOOPT",
"ENOSPC",
"ENOSR",
"ENOSTR",
"ENOSYS",
"ENOTCONN",
"ENOTDIR",
"ENOTEMPTY",
"ENOTRECOVERABLE",
"ENOTSOCK",
"ENOTSUP",
"ENOTTY",
"ENXIO",
"EOPNOTSUPP",
"EOVERFLOW",
"EOWNERDEAD",
"EPIPE",
"EPROTO",
"EPROTONOSUPPORT",
"EPROTOTYPE",
"EROFS",
"ESPIPE",
"ESRCH",
"ETIME",
"ETIMEDOUT",
"ETXTBSY",
"EWOULDBLOCK",
"EXDEV",
};

static char * const unknown_errno_string = "unknown error -8388608";
#endif

int main(void)
{
os_ClrHome();
Expand All @@ -28,20 +100,32 @@ int main(void)
errno = 1; perror("");
errno = 2; perror("\0");
errno = 3; perror(" ");
errno = 4; perror("%d");
errno = 4; perror("%*.*d%n");
errno = 5; perror("perror");
errno = 6; perror(NULL);

while (!os_GetCSC());

os_ClrHome();

errno = 6; perror(NULL);
errno = ARRAY_LENGTH(truth) - 1; perror("\\");
errno = ARRAY_LENGTH(truth); perror(NULL);
errno = -1; perror("");
errno = -123456; perror("%d");
errno = -123456; perror("%*.*d%n");
errno = 123456; perror("???");
errno = INT_MIN; perror(" ");
errno = INT_MAX; perror("#");


for (size_t i = 0; i < ARRAY_LENGTH(truth); i++) {
const char * str = strerror(i);
errno = (int)i;
if (strlen(truth[i]) != strlen(str) || strcmp(truth[i], str) != 0) {
fputs("strerror failed\n", stdout);
break;
}
}
fputs("finished\n", stdout);

while (!os_GetCSC());

return 0;
Expand Down
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