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Diffstat (limited to 'lib/mlibc/options/ansi/generic/string-stubs.cpp')
-rw-r--r--lib/mlibc/options/ansi/generic/string-stubs.cpp542
1 files changed, 0 insertions, 542 deletions
diff --git a/lib/mlibc/options/ansi/generic/string-stubs.cpp b/lib/mlibc/options/ansi/generic/string-stubs.cpp
deleted file mode 100644
index 8defd0e..0000000
--- a/lib/mlibc/options/ansi/generic/string-stubs.cpp
+++ /dev/null
@@ -1,542 +0,0 @@
-#include <string.h>
-#include <errno.h>
-#include <wchar.h>
-#include <ctype.h>
-
-#include <bits/ensure.h>
-#include <mlibc/strtol.hpp>
-
-// memset() is defined in options/internals.
-// memcpy() is defined in options/internals.
-// memmove() is defined in options/internals.
-// strlen() is defined in options/internals.
-
-char *strcpy(char *__restrict dest, const char *src) {
- char *dest_bytes = (char *)dest;
- char *src_bytes = (char *)src;
- while(*src_bytes)
- *(dest_bytes++) = *(src_bytes++);
- *dest_bytes = 0;
- return dest;
-}
-char *strncpy(char *__restrict dest, const char *src, size_t max_size) {
- auto dest_bytes = static_cast<char *>(dest);
- auto src_bytes = static_cast<const char *>(src);
- size_t i = 0;
- while(*src_bytes && i < max_size) {
- *(dest_bytes++) = *(src_bytes++);
- i++;
- }
- while(i < max_size) {
- *(dest_bytes++) = 0;
- i++;
- }
- return dest;
-}
-
-char *strcat(char *__restrict dest, const char *__restrict src) {
- strcpy(dest + strlen(dest), src);
- return dest;
-}
-char *strncat(char *__restrict dest, const char *__restrict src, size_t max_size) {
- auto dest_bytes = static_cast<char *>(dest);
- auto src_bytes = static_cast<const char *>(src);
- dest_bytes += strlen(dest);
- size_t i = 0;
- while(*src_bytes && i < max_size) {
- *(dest_bytes++) = *(src_bytes++);
- i++;
- }
- *dest_bytes = 0;
- return dest;
-}
-
-int memcmp(const void *a, const void *b, size_t size) {
- for(size_t i = 0; i < size; i++) {
- auto a_byte = static_cast<const unsigned char *>(a)[i];
- auto b_byte = static_cast<const unsigned char *>(b)[i];
- if(a_byte < b_byte)
- return -1;
- if(a_byte > b_byte)
- return 1;
- }
- return 0;
-}
-int strcmp(const char *a, const char *b) {
- size_t i = 0;
- while(true) {
- unsigned char a_byte = a[i];
- unsigned char b_byte = b[i];
- if(!a_byte && !b_byte)
- return 0;
- // If only one char is null, one of the following cases applies.
- if(a_byte < b_byte)
- return -1;
- if(a_byte > b_byte)
- return 1;
- i++;
- }
-}
-
-int strcoll(const char *a, const char *b) {
- // TODO: strcoll should take "LC_COLLATE" into account.
- return strcmp(a, b);
-}
-
-int strncmp(const char *a, const char *b, size_t max_size) {
- size_t i = 0;
- while(true) {
- if(!(i < max_size))
- return 0;
- unsigned char a_byte = a[i];
- unsigned char b_byte = b[i];
- if(!a_byte && !b_byte)
- return 0;
- // If only one char is null, one of the following cases applies.
- if(a_byte < b_byte)
- return -1;
- if(a_byte > b_byte)
- return 1;
- i++;
- }
-}
-
-size_t strxfrm(char *__restrict dest, const char *__restrict src, size_t n) {
- // NOTE: This might not work for non ANSI charsets.
- size_t l = strlen(src);
-
- // man page: If the value returned is n or more, the contents of dest are indeterminate.
- if(n > l)
- strncpy(dest, src, n);
-
- return l;
-}
-
-void *memchr(const void *s, int c, size_t size) {
- auto s_bytes = static_cast<const unsigned char *>(s);
- for(size_t i = 0; i < size; i++)
- if(s_bytes[i] == static_cast<unsigned char>(c))
- return const_cast<unsigned char *>(s_bytes + i);
- return nullptr;
-}
-char *strchr(const char *s, int c) {
- size_t i = 0;
- while(s[i]) {
- if(s[i] == c)
- return const_cast<char *>(&s[i]);
- i++;
- }
- if(c == 0)
- return const_cast<char *>(&s[i]);
- return nullptr;
-}
-size_t strcspn(const char *s, const char *chrs) {
- size_t n = 0;
- while(true) {
- if(!s[n] || strchr(chrs, s[n]))
- return n;
- n++;
- }
-}
-char *strpbrk(const char *s, const char *chrs) {
- size_t n = 0;
- while(s[n]) {
- if(strchr(chrs, s[n]))
- return const_cast<char *>(s + n);
- n++;
- }
- return nullptr;
-}
-char *strrchr(const char *s, int c) {
- // The null-terminator is considered to be part of the string.
- size_t length = strlen(s);
- for(size_t i = 0; i <= length; i++) {
- if(s[length - i] == c)
- return const_cast<char *>(s + (length - i));
- }
- return nullptr;
-}
-size_t strspn(const char *s, const char *chrs) {
- size_t n = 0;
- while(true) {
- if(!s[n] || !strchr(chrs, s[n]))
- return n;
- n++;
- }
-}
-char *strstr(const char *s, const char *pattern) {
- for(size_t i = 0; s[i]; i++) {
- bool found = true;
- for(size_t j = 0; pattern[j]; j++) {
- if(!pattern[j] || s[i + j] == pattern[j])
- continue;
-
- found = false;
- break;
- }
-
- if(found)
- return const_cast<char *>(&s[i]);
- }
-
- return nullptr;
-}
-char *strtok_r(char *__restrict s, const char *__restrict del, char **__restrict m) {
- __ensure(m);
-
- // We use *m = null to memorize that the entire string was consumed.
- char *tok;
- if(s) {
- tok = s;
- }else if(*m) {
- tok = *m;
- }else {
- return nullptr;
- }
-
- // Skip initial delimiters.
- // After this loop: *tok is non-null iff we return a token.
- while(*tok && strchr(del, *tok))
- tok++;
-
- // Replace the following delimiter by a null-terminator.
- // After this loop: *p is null iff we reached the end of the string.
- auto p = tok;
- while(*p && !strchr(del, *p))
- p++;
-
- if(*p) {
- *p = 0;
- *m = p + 1;
- }else{
- *m = nullptr;
- }
- if(p == tok)
- return nullptr;
- return tok;
-}
-char *strtok(char *__restrict s, const char *__restrict delimiter) {
- static char *saved;
- return strtok_r(s, delimiter, &saved);
-}
-
-// This is a GNU extension.
-char *strchrnul(const char *s, int c) {
- size_t i = 0;
- while(s[i]) {
- if(s[i] == c)
- return const_cast<char *>(s + i);
- i++;
- }
- return const_cast<char *>(s + i);
-}
-
-double wcstod(const wchar_t *__restrict, wchar_t **__restrict) MLIBC_STUB_BODY
-float wcstof(const wchar_t *__restrict, wchar_t **__restrict) MLIBC_STUB_BODY
-long double wcstold(const wchar_t *__restrict, wchar_t **__restrict) MLIBC_STUB_BODY
-
-long wcstol(const wchar_t *__restrict nptr, wchar_t **__restrict endptr, int base) {
- return mlibc::stringToInteger<long, wchar_t>(nptr, endptr, base);
-}
-unsigned long wcstoul(const wchar_t *__restrict nptr, wchar_t **__restrict endptr, int base) {
- return mlibc::stringToInteger<unsigned long, wchar_t>(nptr, endptr, base);
-}
-long long wcstoll(const wchar_t *__restrict nptr, wchar_t **__restrict endptr, int base) {
- return mlibc::stringToInteger<long long, wchar_t>(nptr, endptr, base);
-}
-unsigned long long wcstoull(const wchar_t *__restrict nptr, wchar_t **__restrict endptr, int base) {
- return mlibc::stringToInteger<unsigned long long, wchar_t>(nptr, endptr, base);
-}
-
-wchar_t *wcscpy(wchar_t *__restrict dest, const wchar_t *__restrict src) {
- wchar_t *a = dest;
- while((*dest++ = *src++));
- return a;
-}
-
-wchar_t *wcsncpy(wchar_t *__restrict dest, const wchar_t *__restrict src, size_t n) {
- wchar_t *a = dest;
- while(n && *src)
- n--, *dest++ = *src++;
- wmemset(dest, 0, n);
- return a;
-}
-
-wchar_t *wmemcpy(wchar_t *__restrict dest, const wchar_t *__restrict src, size_t n) {
- memcpy(dest, src, n * sizeof(wchar_t));
- return dest;
-}
-
-wchar_t *wmemmove(wchar_t *dest, const wchar_t *src, size_t n) {
- memmove(dest, src, n * sizeof(wchar_t));
- return dest;
-}
-
-wchar_t *wcscat(wchar_t *__restrict dest, const wchar_t *__restrict src) {
- wcscpy(dest + wcslen(dest), src);
- return dest;
-}
-
-wchar_t *wcsncat(wchar_t *__restrict, const wchar_t *__restrict, size_t) MLIBC_STUB_BODY
-
-int wcscmp(const wchar_t *l, const wchar_t *r) {
- for(; *l == *r && *l && *r; l++, r++);
- return *l - *r;
-}
-
-int wcscoll(const wchar_t *, const wchar_t *) MLIBC_STUB_BODY
-int wcsncmp(const wchar_t *, const wchar_t *, size_t) MLIBC_STUB_BODY
-int wcsxfrm(wchar_t *__restrict, const wchar_t *__restrict, size_t) MLIBC_STUB_BODY
-
-int wmemcmp(const wchar_t *a, const wchar_t *b, size_t size) {
- for(size_t i = 0; i < size; i++) {
- auto a_byte = a[i];
- auto b_byte = b[i];
- if(a_byte < b_byte)
- return -1;
- if(a_byte > b_byte)
- return 1;
- }
- return 0;
-}
-
-wchar_t *wcschr(const wchar_t *s, wchar_t c) {
- if(!c)
- return (wchar_t *)s + wcslen(s);
- for(; *s && *s != c; s++);
- return *s ? (wchar_t *)s : 0;
-}
-
-size_t wcscspn(const wchar_t *, const wchar_t *) MLIBC_STUB_BODY
-wchar_t *wcspbrk(const wchar_t *, const wchar_t *) MLIBC_STUB_BODY
-
-wchar_t *wcsrchr(const wchar_t *s, wchar_t c) {
- const wchar_t *p;
- for(p = s + wcslen(s); p >= s && *p != c; p--);
- return p >= s ? (wchar_t *)p : 0;
-}
-
-size_t wcsspn(const wchar_t *, const wchar_t *) MLIBC_STUB_BODY
-wchar_t *wcsstr(const wchar_t *, const wchar_t *) MLIBC_STUB_BODY
-wchar_t *wcstok(wchar_t *__restrict, const wchar_t *__restrict, wchar_t **__restrict) MLIBC_STUB_BODY
-
-wchar_t *wmemchr(const wchar_t *s, wchar_t c, size_t size) {
- auto s_bytes = s;
- for(size_t i = 0; i < size; i++)
- if(s_bytes[i] == c)
- return const_cast<wchar_t *>(s_bytes + i);
- return nullptr;
-}
-
-size_t wcslen(const wchar_t *s) {
- const wchar_t *a;
- for(a = s; *s; s++);
- return s-a;
-}
-
-wchar_t *wmemset(wchar_t *d, wchar_t c, size_t n) {
- wchar_t *ret = d;
- while(n--)
- *d++ = c;
- return ret;
-}
-
-char *strerror(int e) {
- const char *s;
- switch(e) {
- case EAGAIN: s = "Operation would block (EAGAIN)"; break;
- case EACCES: s = "Access denied (EACCESS)"; break;
- case EBADF: s = "Bad file descriptor (EBADF)"; break;
- case EEXIST: s = "File exists already (EEXIST)"; break;
- case EFAULT: s = "Access violation (EFAULT)"; break;
- case EINTR: s = "Operation interrupted (EINTR)"; break;
- case EINVAL: s = "Invalid argument (EINVAL)"; break;
- case EIO: s = "I/O error (EIO)"; break;
- case EISDIR: s = "Resource is directory (EISDIR)"; break;
- case ENOENT: s = "No such file or directory (ENOENT)"; break;
- case ENOMEM: s = "Out of memory (ENOMEM)"; break;
- case ENOTDIR: s = "Expected directory instead of file (ENOTDIR)"; break;
- case ENOSYS: s = "Operation not implemented (ENOSYS)"; break;
- case EPERM: s = "Operation not permitted (EPERM)"; break;
- case EPIPE: s = "Broken pipe (EPIPE)"; break;
- case ESPIPE: s = "Seek not possible (ESPIPE)"; break;
- case ENXIO: s = "No such device or address (ENXIO)"; break;
- case ENOEXEC: s = "Exec format error (ENOEXEC)"; break;
- case ENOSPC: s = "No space left on device (ENOSPC)"; break;
- case ENOTSOCK: s = "Socket operation on non-socket (ENOTSOCK)"; break;
- case ENOTCONN: s = "Transport endpoint is not connected (ENOTCONN)"; break;
- case EDOM: s = "Numerical argument out of domain (EDOM)"; break;
- case EILSEQ: s = "Invalid or incomplete multibyte or wide character (EILSEQ)"; break;
- case ERANGE: s = "Numerical result out of range (ERANGE)"; break;
- case E2BIG: s = "Argument list too long (E2BIG)"; break;
- case EADDRINUSE: s = "Address already in use (EADDRINUSE)"; break;
- case EADDRNOTAVAIL: s = "Cannot assign requested address (EADDRNOTAVAIL)"; break;
- case EAFNOSUPPORT: s = "Address family not supported by protocol (EAFNOSUPPORT)"; break;
- case EALREADY: s = "Operation already in progress (EALREADY)"; break;
- case EBADMSG: s = "Bad message (EBADMSG)"; break;
- case EBUSY: s = "Device or resource busy (EBUSY)"; break;
- case ECANCELED: s = "Operation canceled (ECANCELED)"; break;
- case ECHILD: s = "No child processes (ECHILD)"; break;
- case ECONNABORTED: s = "Software caused connection abort (ECONNABORTED)"; break;
- case ECONNREFUSED: s = "Connection refused (ECONNREFUSED)"; break;
- case ECONNRESET: s = "Connection reset by peer (ECONNRESET)"; break;
- case EDEADLK: s = "Resource deadlock avoided (EDEADLK)"; break;
- case EDESTADDRREQ: s = "Destination address required (EDESTADDRREQ)"; break;
- case EDQUOT: s = "Disk quota exceeded (EDQUOT)"; break;
- case EFBIG: s = "File too large (EFBIG)"; break;
- case EHOSTUNREACH: s = "No route to host (EHOSTUNREACH)"; break;
- case EIDRM: s = "Identifier removed (EIDRM)"; break;
- case EINPROGRESS: s = "Operation now in progress (EINPROGRESS)"; break;
- case EISCONN: s = "Transport endpoint is already connected (EISCONN)"; break;
- case ELOOP: s = "Too many levels of symbolic links (ELOOP)"; break;
- case EMFILE: s = "Too many open files (EMFILE)"; break;
- case EMLINK: s = "Too many links (EMLINK)"; break;
- case EMSGSIZE: s = "Message too long (EMSGSIZE)"; break;
- case EMULTIHOP: s = "Multihop attempted (EMULTIHOP)"; break;
- case ENAMETOOLONG: s = "File name too long (ENAMETOOLONG)"; break;
- case ENETDOWN: s = "Network is down (ENETDOWN)"; break;
- case ENETRESET: s = "Network dropped connection on reset (ENETRESET)"; break;
- case ENETUNREACH: s = "Network is unreachable (ENETUNREACH)"; break;
- case ENFILE: s = "Too many open files in system (ENFILE)"; break;
- case ENOBUFS: s = "No buffer space available (ENOBUFS)"; break;
- case ENODEV: s = "No such device (ENODEV)"; break;
- case ENOLCK: s = "No locks available (ENOLCK)"; break;
- case ENOLINK: s = "Link has been severed (ENOLINK)"; break;
- case ENOMSG: s = "No message of desired type (ENOMSG)"; break;
- case ENOPROTOOPT: s = "Protocol not available (ENOPROTOOPT)"; break;
- case ENOTEMPTY: s = "Directory not empty (ENOTEMPTY)"; break;
- case ENOTRECOVERABLE: s = "Sate not recoverable (ENOTRECOVERABLE)"; break;
- case ENOTSUP: s = "Operation not supported (ENOTSUP)"; break;
- case ENOTTY: s = "Inappropriate ioctl for device (ENOTTY)"; break;
- case EOVERFLOW: s = "Value too large for defined datatype (EOVERFLOW)"; break;
-#if EOPNOTSUPP != ENOTSUP
- /* these are aliases on the mlibc abi */
- case EOPNOTSUPP: s = "Operation not supported (EOPNOTSUP)"; break;
-#endif
- case EOWNERDEAD: s = "Owner died (EOWNERDEAD)"; break;
- case EPROTO: s = "Protocol error (EPROTO)"; break;
- case EPROTONOSUPPORT: s = "Protocol not supported (EPROTONOSUPPORT)"; break;
- case EPROTOTYPE: s = "Protocol wrong type for socket (EPROTOTYPE)"; break;
- case EROFS: s = "Read-only file system (EROFS)"; break;
- case ESRCH: s = "No such process (ESRCH)"; break;
- case ESTALE: s = "Stale file handle (ESTALE)"; break;
- case ETIMEDOUT: s = "Connection timed out (ETIMEDOUT)"; break;
- case ETXTBSY: s = "Text file busy (ETXTBSY)"; break;
- case EXDEV: s = "Invalid cross-device link (EXDEV)"; break;
- case ENODATA: s = "No data available (ENODATA)"; break;
- case ETIME: s = "Timer expired (ETIME)"; break;
- case ENOKEY: s = "Required key not available (ENOKEY)"; break;
- case ESHUTDOWN: s = "Cannot send after transport endpoint shutdown (ESHUTDOWN)"; break;
- case EHOSTDOWN: s = "Host is down (EHOSTDOWN)"; break;
- case EBADFD: s = "File descriptor in bad state (EBADFD)"; break;
- case ENOMEDIUM: s = "No medium found (ENOMEDIUM)"; break;
- case ENOTBLK: s = "Block device required (ENOTBLK)"; break;
- case ENONET: s = "Machine is not on the network (ENONET)"; break;
- case EPFNOSUPPORT: s = "Protocol family not supported (EPFNOSUPPORT)"; break;
- case ESOCKTNOSUPPORT: s = "Socket type not supported (ESOCKTNOSUPPORT)"; break;
- case ESTRPIPE: s = "Streams pipe error (ESTRPIPE)"; break;
- case EREMOTEIO: s = "Remote I/O error (EREMOTEIO)"; break;
- case ERFKILL: s = "Operation not possible due to RF-kill (ERFKILL)"; break;
- case EBADR: s = "Invalid request descriptor (EBADR)"; break;
- case EUNATCH: s = "Protocol driver not attached (EUNATCH)"; break;
- case EMEDIUMTYPE: s = "Wrong medium type (EMEDIUMTYPE)"; break;
- case EREMOTE: s = "Object is remote (EREMOTE)"; break;
- case EKEYREJECTED: s = "Key was rejected by service (EKEYREJECTED)"; break;
- case EUCLEAN: s = "Structure needs cleaning (EUCLEAN)"; break;
- case EBADSLT: s = "Invalid slot (EBADSLT)"; break;
- case ENOANO: s = "No anode (ENOANO)"; break;
- case ENOCSI: s = "No CSI structure available (ENOCSI)"; break;
- case ENOSTR: s = "Device not a stream (ENOSTR)"; break;
- case ETOOMANYREFS: s = "Too many references: cannot splice (ETOOMANYREFS)"; break;
- case ENOPKG: s = "Package not installed (ENOPKG)"; break;
- case EKEYREVOKED: s = "Key has been revoked (EKEYREVOKED)"; break;
- case EXFULL: s = "Exchange full (EXFULL)"; break;
- case ELNRNG: s = "Link number out of range (ELNRNG)"; break;
- case ENOTUNIQ: s = "Name not unique on network (ENOTUNIQ)"; break;
- case ERESTART: s = "Interrupted system call should be restarted (ERESTART)"; break;
- case EUSERS: s = "Too many users (EUSERS)"; break;
-
-#ifdef EIEIO
- case EIEIO: s = "Computer bought the farm; OS internal error (EIEIO)"; break;
-#endif
-
- default:
- s = "Unknown error code (?)";
- }
- return const_cast<char *>(s);
-}
-// strlen() is defined in options/internals.
-
-// POSIX extensions.
-
-int strerror_r(int e, char *buffer, size_t bufsz) {
- auto s = strerror(e);
- strncpy(buffer, s, bufsz);
- // Note that strerror_r does not set errno on error!
- if(strlen(s) >= bufsz)
- return ERANGE;
- return 0;
-}
-
-void *mempcpy(void *dest, const void *src, size_t len) {
- return (char *)memcpy(dest, src, len) + len;
-}
-
-// GNU extensions.
-// Taken from musl.
-int strverscmp(const char *l0, const char *r0) {
- const unsigned char *l = (const unsigned char *)l0;
- const unsigned char *r = (const unsigned char *)r0;
- size_t i, dp, j;
- int z = 1;
-
- /* Find maximal matching prefix and track its maximal digit
- * suffix and whether those digits are all zeros. */
- for(dp = i = 0; l[i] == r[i]; i++) {
- int c = l[i];
- if(!c)
- return 0;
- if(!isdigit(c))
- dp = i + 1, z = 1;
- else if(c != '0')
- z = 0;
- }
-
- if(l[dp] != '0' && r[dp] != '0') {
- /* If we're not looking at a digit sequence that began
- * with a zero, longest digit string is greater. */
- for(j = i; isdigit(l[j]); j++) {
- if(!isdigit(r[j]))
- return 1;
- }
- if(isdigit(r[j]))
- return -1;
- } else if(z && dp < i && (isdigit(l[i]) || isdigit(r[i]))) {
- /* Otherwise, if common prefix of digit sequence is
- * all zeros, digits order less than non-digits. */
- return (unsigned char)(l[i] - '0') - (unsigned char)(r[i] - '0');
- }
-
- return l[i] - r[i];
-}
-
-void *memmem(const void *hs, size_t haystackLen, const void *nd, size_t needleLen) {
- const char *haystack = static_cast<const char *>(hs);
- const char *needle = static_cast<const char *>(nd);
-
- for (size_t i = 0; i < haystackLen; i++) {
- bool found = true;
-
- for (size_t j = 0; j < needleLen; j++) {
- if (i + j >= haystackLen || haystack[i + j] != needle[j]) {
- found = false;
- break;
- }
- }
-
- if(found)
- return const_cast<char *>(&haystack[i]);
- }
-
- return nullptr;
-}
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