diff options
Diffstat (limited to 'src/libjin/3rdparty/smount')
-rw-r--r-- | src/libjin/3rdparty/smount/dirent.h | 951 | ||||
-rw-r--r-- | src/libjin/3rdparty/smount/smount.c | 200 | ||||
-rw-r--r-- | src/libjin/3rdparty/smount/smount.h | 89 |
3 files changed, 1240 insertions, 0 deletions
diff --git a/src/libjin/3rdparty/smount/dirent.h b/src/libjin/3rdparty/smount/dirent.h new file mode 100644 index 0000000..832b164 --- /dev/null +++ b/src/libjin/3rdparty/smount/dirent.h @@ -0,0 +1,951 @@ +/* +* Dirent interface for Microsoft Visual Studio +* Version 1.21 +* +* Copyright (C) 2006-2012 Toni Ronkko +* This file is part of dirent. Dirent may be freely distributed +* under the MIT license. For all details and documentation, see +* https://github.com/tronkko/dirent +*/ +#ifndef DIRENT_H +#define DIRENT_H + +/* +* Include windows.h without Windows Sockets 1.1 to prevent conflicts with +* Windows Sockets 2.0. +*/ +#ifndef WIN32_LEAN_AND_MEAN +# define WIN32_LEAN_AND_MEAN +#endif +#include <windows.h> + +#include <stdio.h> +#include <stdarg.h> +#include <wchar.h> +#include <string.h> +#include <stdlib.h> +#include <malloc.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <errno.h> + +/* Indicates that d_type field is available in dirent structure */ +#define _DIRENT_HAVE_D_TYPE + +/* Indicates that d_namlen field is available in dirent structure */ +#define _DIRENT_HAVE_D_NAMLEN + +/* Entries missing from MSVC 6.0 */ +#if !defined(FILE_ATTRIBUTE_DEVICE) +# define FILE_ATTRIBUTE_DEVICE 0x40 +#endif + +/* File type and permission flags for stat(), general mask */ +#if !defined(S_IFMT) +# define S_IFMT _S_IFMT +#endif + +/* Directory bit */ +#if !defined(S_IFDIR) +# define S_IFDIR _S_IFDIR +#endif + +/* Character device bit */ +#if !defined(S_IFCHR) +# define S_IFCHR _S_IFCHR +#endif + +/* Pipe bit */ +#if !defined(S_IFFIFO) +# define S_IFFIFO _S_IFFIFO +#endif + +/* Regular file bit */ +#if !defined(S_IFREG) +# define S_IFREG _S_IFREG +#endif + +/* Read permission */ +#if !defined(S_IREAD) +# define S_IREAD _S_IREAD +#endif + +/* Write permission */ +#if !defined(S_IWRITE) +# define S_IWRITE _S_IWRITE +#endif + +/* Execute permission */ +#if !defined(S_IEXEC) +# define S_IEXEC _S_IEXEC +#endif + +/* Pipe */ +#if !defined(S_IFIFO) +# define S_IFIFO _S_IFIFO +#endif + +/* Block device */ +#if !defined(S_IFBLK) +# define S_IFBLK 0 +#endif + +/* Link */ +#if !defined(S_IFLNK) +# define S_IFLNK 0 +#endif + +/* Socket */ +#if !defined(S_IFSOCK) +# define S_IFSOCK 0 +#endif + +/* Read user permission */ +#if !defined(S_IRUSR) +# define S_IRUSR S_IREAD +#endif + +/* Write user permission */ +#if !defined(S_IWUSR) +# define S_IWUSR S_IWRITE +#endif + +/* Execute user permission */ +#if !defined(S_IXUSR) +# define S_IXUSR 0 +#endif + +/* Read group permission */ +#if !defined(S_IRGRP) +# define S_IRGRP 0 +#endif + +/* Write group permission */ +#if !defined(S_IWGRP) +# define S_IWGRP 0 +#endif + +/* Execute group permission */ +#if !defined(S_IXGRP) +# define S_IXGRP 0 +#endif + +/* Read others permission */ +#if !defined(S_IROTH) +# define S_IROTH 0 +#endif + +/* Write others permission */ +#if !defined(S_IWOTH) +# define S_IWOTH 0 +#endif + +/* Execute others permission */ +#if !defined(S_IXOTH) +# define S_IXOTH 0 +#endif + +/* Maximum length of file name */ +#if !defined(PATH_MAX) +# define PATH_MAX MAX_PATH +#endif +#if !defined(FILENAME_MAX) +# define FILENAME_MAX MAX_PATH +#endif +#if !defined(NAME_MAX) +# define NAME_MAX FILENAME_MAX +#endif + +/* File type flags for d_type */ +#define DT_UNKNOWN 0 +#define DT_REG S_IFREG +#define DT_DIR S_IFDIR +#define DT_FIFO S_IFIFO +#define DT_SOCK S_IFSOCK +#define DT_CHR S_IFCHR +#define DT_BLK S_IFBLK +#define DT_LNK S_IFLNK + +/* Macros for converting between st_mode and d_type */ +#define IFTODT(mode) ((mode) & S_IFMT) +#define DTTOIF(type) (type) + +/* +* File type macros. Note that block devices, sockets and links cannot be +* distinguished on Windows and the macros S_ISBLK, S_ISSOCK and S_ISLNK are +* only defined for compatibility. These macros should always return false +* on Windows. +*/ +#if !defined(S_ISFIFO) +# define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO) +#endif +#if !defined(S_ISDIR) +# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR) +#endif +#if !defined(S_ISREG) +# define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG) +#endif +#if !defined(S_ISLNK) +# define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK) +#endif +#if !defined(S_ISSOCK) +# define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK) +#endif +#if !defined(S_ISCHR) +# define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR) +#endif +#if !defined(S_ISBLK) +# define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK) +#endif + +/* Return the exact length of d_namlen without zero terminator */ +#define _D_EXACT_NAMLEN(p) ((p)->d_namlen) + +/* Return number of bytes needed to store d_namlen */ +#define _D_ALLOC_NAMLEN(p) (PATH_MAX) + + +#ifdef __cplusplus +extern "C" { +#endif + + + /* Wide-character version */ + struct _wdirent { + /* Always zero */ + long d_ino; + + /* Structure size */ + unsigned short d_reclen; + + /* Length of name without \0 */ + size_t d_namlen; + + /* File type */ + int d_type; + + /* File name */ + wchar_t d_name[PATH_MAX]; + }; + typedef struct _wdirent _wdirent; + + struct _WDIR { + /* Current directory entry */ + struct _wdirent ent; + + /* Private file data */ + WIN32_FIND_DATAW data; + + /* True if data is valid */ + int cached; + + /* Win32 search handle */ + HANDLE handle; + + /* Initial directory name */ + wchar_t *patt; + }; + typedef struct _WDIR _WDIR; + + static _WDIR *_wopendir(const wchar_t *dirname); + static struct _wdirent *_wreaddir(_WDIR *dirp); + static int _wclosedir(_WDIR *dirp); + static void _wrewinddir(_WDIR* dirp); + + + /* For compatibility with Symbian */ +#define wdirent _wdirent +#define WDIR _WDIR +#define wopendir _wopendir +#define wreaddir _wreaddir +#define wclosedir _wclosedir +#define wrewinddir _wrewinddir + + + /* Multi-byte character versions */ + struct dirent { + /* Always zero */ + long d_ino; + + /* Structure size */ + unsigned short d_reclen; + + /* Length of name without \0 */ + size_t d_namlen; + + /* File type */ + int d_type; + + /* File name */ + char d_name[PATH_MAX]; + }; + typedef struct dirent dirent; + + struct DIR { + struct dirent ent; + struct _WDIR *wdirp; + }; + typedef struct DIR DIR; + + static DIR *opendir(const char *dirname); + static struct dirent *readdir(DIR *dirp); + static int closedir(DIR *dirp); + static void rewinddir(DIR* dirp); + + + /* Internal utility functions */ + static WIN32_FIND_DATAW *dirent_first(_WDIR *dirp); + static WIN32_FIND_DATAW *dirent_next(_WDIR *dirp); + + static int dirent_mbstowcs_s( + size_t *pReturnValue, + wchar_t *wcstr, + size_t sizeInWords, + const char *mbstr, + size_t count); + + static int dirent_wcstombs_s( + size_t *pReturnValue, + char *mbstr, + size_t sizeInBytes, + const wchar_t *wcstr, + size_t count); + + static void dirent_set_errno(int error); + + /* + * Open directory stream DIRNAME for read and return a pointer to the + * internal working area that is used to retrieve individual directory + * entries. + */ + static _WDIR* + _wopendir( + const wchar_t *dirname) + { + _WDIR *dirp = NULL; + int error; + + /* Must have directory name */ + if (dirname == NULL || dirname[0] == '\0') { + dirent_set_errno(ENOENT); + return NULL; + } + + /* Allocate new _WDIR structure */ + dirp = (_WDIR*)malloc(sizeof(struct _WDIR)); + if (dirp != NULL) { + DWORD n; + + /* Reset _WDIR structure */ + dirp->handle = INVALID_HANDLE_VALUE; + dirp->patt = NULL; + dirp->cached = 0; + + /* Compute the length of full path plus zero terminator + * + * Note that on WinRT there's no way to convert relative paths + * into absolute paths, so just assume its an absolute path. + */ +# if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP) + n = wcslen(dirname); +# else + n = GetFullPathNameW(dirname, 0, NULL, NULL); +# endif + + /* Allocate room for absolute directory name and search pattern */ + dirp->patt = (wchar_t*)malloc(sizeof(wchar_t) * n + 16); + if (dirp->patt) { + + /* + * Convert relative directory name to an absolute one. This + * allows rewinddir() to function correctly even when current + * working directory is changed between opendir() and rewinddir(). + * + * Note that on WinRT there's no way to convert relative paths + * into absolute paths, so just assume its an absolute path. + */ +# if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP) + wcsncpy_s(dirp->patt, n + 1, dirname, n); +# else + n = GetFullPathNameW(dirname, n, dirp->patt, NULL); +# endif + if (n > 0) { + wchar_t *p; + + /* Append search pattern \* to the directory name */ + p = dirp->patt + n; + if (dirp->patt < p) { + switch (p[-1]) { + case '\\': + case '/': + case ':': + /* Directory ends in path separator, e.g. c:\temp\ */ + /*NOP*/; + break; + + default: + /* Directory name doesn't end in path separator */ + *p++ = '\\'; + } + } + *p++ = '*'; + *p = '\0'; + + /* Open directory stream and retrieve the first entry */ + if (dirent_first(dirp)) { + /* Directory stream opened successfully */ + error = 0; + } + else { + /* Cannot retrieve first entry */ + error = 1; + dirent_set_errno(ENOENT); + } + + } + else { + /* Cannot retrieve full path name */ + dirent_set_errno(ENOENT); + error = 1; + } + + } + else { + /* Cannot allocate memory for search pattern */ + error = 1; + } + + } + else { + /* Cannot allocate _WDIR structure */ + error = 1; + } + + /* Clean up in case of error */ + if (error && dirp) { + _wclosedir(dirp); + dirp = NULL; + } + + return dirp; + } + + /* + * Read next directory entry. The directory entry is returned in dirent + * structure in the d_name field. Individual directory entries returned by + * this function include regular files, sub-directories, pseudo-directories + * "." and ".." as well as volume labels, hidden files and system files. + */ + static struct _wdirent* + _wreaddir( + _WDIR *dirp) + { + WIN32_FIND_DATAW *datap; + struct _wdirent *entp; + + /* Read next directory entry */ + datap = dirent_next(dirp); + if (datap) { + size_t n; + DWORD attr; + + /* Pointer to directory entry to return */ + entp = &dirp->ent; + + /* + * Copy file name as wide-character string. If the file name is too + * long to fit in to the destination buffer, then truncate file name + * to PATH_MAX characters and zero-terminate the buffer. + */ + n = 0; + while (n + 1 < PATH_MAX && datap->cFileName[n] != 0) { + entp->d_name[n] = datap->cFileName[n]; + n++; + } + dirp->ent.d_name[n] = 0; + + /* Length of file name excluding zero terminator */ + entp->d_namlen = n; + + /* File type */ + attr = datap->dwFileAttributes; + if ((attr & FILE_ATTRIBUTE_DEVICE) != 0) { + entp->d_type = DT_CHR; + } + else if ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) { + entp->d_type = DT_DIR; + } + else { + entp->d_type = DT_REG; + } + + /* Reset dummy fields */ + entp->d_ino = 0; + entp->d_reclen = sizeof(struct _wdirent); + + } + else { + + /* Last directory entry read */ + entp = NULL; + + } + + return entp; + } + + /* + * Close directory stream opened by opendir() function. This invalidates the + * DIR structure as well as any directory entry read previously by + * _wreaddir(). + */ + static int + _wclosedir( + _WDIR *dirp) + { + int ok; + if (dirp) { + + /* Release search handle */ + if (dirp->handle != INVALID_HANDLE_VALUE) { + FindClose(dirp->handle); + dirp->handle = INVALID_HANDLE_VALUE; + } + + /* Release search pattern */ + if (dirp->patt) { + free(dirp->patt); + dirp->patt = NULL; + } + + /* Release directory structure */ + free(dirp); + ok = /*success*/0; + + } + else { + /* Invalid directory stream */ + dirent_set_errno(EBADF); + ok = /*failure*/-1; + } + return ok; + } + + /* + * Rewind directory stream such that _wreaddir() returns the very first + * file name again. + */ + static void + _wrewinddir( + _WDIR* dirp) + { + if (dirp) { + /* Release existing search handle */ + if (dirp->handle != INVALID_HANDLE_VALUE) { + FindClose(dirp->handle); + } + + /* Open new search handle */ + dirent_first(dirp); + } + } + + /* Get first directory entry (internal) */ + static WIN32_FIND_DATAW* + dirent_first( + _WDIR *dirp) + { + WIN32_FIND_DATAW *datap; + + /* Open directory and retrieve the first entry */ + dirp->handle = FindFirstFileExW( + dirp->patt, FindExInfoStandard, &dirp->data, + FindExSearchNameMatch, NULL, 0); + if (dirp->handle != INVALID_HANDLE_VALUE) { + + /* a directory entry is now waiting in memory */ + datap = &dirp->data; + dirp->cached = 1; + + } + else { + + /* Failed to re-open directory: no directory entry in memory */ + dirp->cached = 0; + datap = NULL; + + } + return datap; + } + + /* Get next directory entry (internal) */ + static WIN32_FIND_DATAW* + dirent_next( + _WDIR *dirp) + { + WIN32_FIND_DATAW *p; + + /* Get next directory entry */ + if (dirp->cached != 0) { + + /* A valid directory entry already in memory */ + p = &dirp->data; + dirp->cached = 0; + + } + else if (dirp->handle != INVALID_HANDLE_VALUE) { + + /* Get the next directory entry from stream */ + if (FindNextFileW(dirp->handle, &dirp->data) != FALSE) { + /* Got a file */ + p = &dirp->data; + } + else { + /* The very last entry has been processed or an error occured */ + FindClose(dirp->handle); + dirp->handle = INVALID_HANDLE_VALUE; + p = NULL; + } + + } + else { + + /* End of directory stream reached */ + p = NULL; + + } + + return p; + } + + /* + * Open directory stream using plain old C-string. + */ + static DIR* + opendir( + const char *dirname) + { + struct DIR *dirp; + int error; + + /* Must have directory name */ + if (dirname == NULL || dirname[0] == '\0') { + dirent_set_errno(ENOENT); + return NULL; + } + + /* Allocate memory for DIR structure */ + dirp = (DIR*)malloc(sizeof(struct DIR)); + if (dirp) { + wchar_t wname[PATH_MAX]; + size_t n; + + /* Convert directory name to wide-character string */ + error = dirent_mbstowcs_s(&n, wname, PATH_MAX, dirname, PATH_MAX); + if (!error) { + + /* Open directory stream using wide-character name */ + dirp->wdirp = _wopendir(wname); + if (dirp->wdirp) { + /* Directory stream opened */ + error = 0; + } + else { + /* Failed to open directory stream */ + error = 1; + } + + } + else { + /* + * Cannot convert file name to wide-character string. This + * occurs if the string contains invalid multi-byte sequences or + * the output buffer is too small to contain the resulting + * string. + */ + error = 1; + } + + } + else { + /* Cannot allocate DIR structure */ + error = 1; + } + + /* Clean up in case of error */ + if (error && dirp) { + free(dirp); + dirp = NULL; + } + + return dirp; + } + + /* + * Read next directory entry. + * + * When working with text consoles, please note that file names returned by + * readdir() are represented in the default ANSI code page while any output to + * console is typically formatted on another code page. Thus, non-ASCII + * characters in file names will not usually display correctly on console. The + * problem can be fixed in two ways: (1) change the character set of console + * to 1252 using chcp utility and use Lucida Console font, or (2) use + * _cprintf function when writing to console. The _cprinf() will re-encode + * ANSI strings to the console code page so many non-ASCII characters will + * display correcly. + */ + static struct dirent* + readdir( + DIR *dirp) + { + WIN32_FIND_DATAW *datap; + struct dirent *entp; + + /* Read next directory entry */ + datap = dirent_next(dirp->wdirp); + if (datap) { + size_t n; + int error; + + /* Attempt to convert file name to multi-byte string */ + error = dirent_wcstombs_s( + &n, dirp->ent.d_name, PATH_MAX, datap->cFileName, PATH_MAX); + + /* + * If the file name cannot be represented by a multi-byte string, + * then attempt to use old 8+3 file name. This allows traditional + * Unix-code to access some file names despite of unicode + * characters, although file names may seem unfamiliar to the user. + * + * Be ware that the code below cannot come up with a short file + * name unless the file system provides one. At least + * VirtualBox shared folders fail to do this. + */ + if (error && datap->cAlternateFileName[0] != '\0') { + error = dirent_wcstombs_s( + &n, dirp->ent.d_name, PATH_MAX, + datap->cAlternateFileName, PATH_MAX); + } + + if (!error) { + DWORD attr; + + /* Initialize directory entry for return */ + entp = &dirp->ent; + + /* Length of file name excluding zero terminator */ + entp->d_namlen = n - 1; + + /* File attributes */ + attr = datap->dwFileAttributes; + if ((attr & FILE_ATTRIBUTE_DEVICE) != 0) { + entp->d_type = DT_CHR; + } + else if ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) { + entp->d_type = DT_DIR; + } + else { + entp->d_type = DT_REG; + } + + /* Reset dummy fields */ + entp->d_ino = 0; + entp->d_reclen = sizeof(struct dirent); + + } + else { + /* + * Cannot convert file name to multi-byte string so construct + * an errornous directory entry and return that. Note that + * we cannot return NULL as that would stop the processing + * of directory entries completely. + */ + entp = &dirp->ent; + entp->d_name[0] = '?'; + entp->d_name[1] = '\0'; + entp->d_namlen = 1; + entp->d_type = DT_UNKNOWN; + entp->d_ino = 0; + entp->d_reclen = 0; + } + + } + else { + /* No more directory entries */ + entp = NULL; + } + + return entp; + } + + /* + * Close directory stream. + */ + static int + closedir( + DIR *dirp) + { + int ok; + if (dirp) { + + /* Close wide-character directory stream */ + ok = _wclosedir(dirp->wdirp); + dirp->wdirp = NULL; + + /* Release multi-byte character version */ + free(dirp); + + } + else { + + /* Invalid directory stream */ + dirent_set_errno(EBADF); + ok = /*failure*/-1; + + } + return ok; + } + + /* + * Rewind directory stream to beginning. + */ + static void + rewinddir( + DIR* dirp) + { + /* Rewind wide-character string directory stream */ + _wrewinddir(dirp->wdirp); + } + + /* Convert multi-byte string to wide character string */ + static int + dirent_mbstowcs_s( + size_t *pReturnValue, + wchar_t *wcstr, + size_t sizeInWords, + const char *mbstr, + size_t count) + { + int error; + +#if defined(_MSC_VER) && _MSC_VER >= 1400 + + /* Microsoft Visual Studio 2005 or later */ + error = mbstowcs_s(pReturnValue, wcstr, sizeInWords, mbstr, count); + +#else + + /* Older Visual Studio or non-Microsoft compiler */ + size_t n; + + /* Convert to wide-character string (or count characters) */ + n = mbstowcs(wcstr, mbstr, sizeInWords); + if (!wcstr || n < count) { + + /* Zero-terminate output buffer */ + if (wcstr && sizeInWords) { + if (n >= sizeInWords) { + n = sizeInWords - 1; + } + wcstr[n] = 0; + } + + /* Length of resuting multi-byte string WITH zero terminator */ + if (pReturnValue) { + *pReturnValue = n + 1; + } + + /* Success */ + error = 0; + + } + else { + + /* Could not convert string */ + error = 1; + + } + +#endif + + return error; + } + + /* Convert wide-character string to multi-byte string */ + static int + dirent_wcstombs_s( + size_t *pReturnValue, + char *mbstr, + size_t sizeInBytes, /* max size of mbstr */ + const wchar_t *wcstr, + size_t count) + { + int error; + +#if defined(_MSC_VER) && _MSC_VER >= 1400 + + /* Microsoft Visual Studio 2005 or later */ + error = wcstombs_s(pReturnValue, mbstr, sizeInBytes, wcstr, count); + +#else + + /* Older Visual Studio or non-Microsoft compiler */ + size_t n; + + /* Convert to multi-byte string (or count the number of bytes needed) */ + n = wcstombs(mbstr, wcstr, sizeInBytes); + if (!mbstr || n < count) { + + /* Zero-terminate output buffer */ + if (mbstr && sizeInBytes) { + if (n >= sizeInBytes) { + n = sizeInBytes - 1; + } + mbstr[n] = '\0'; + } + + /* Length of resulting multi-bytes string WITH zero-terminator */ + if (pReturnValue) { + *pReturnValue = n + 1; + } + + /* Success */ + error = 0; + + } + else { + + /* Cannot convert string */ + error = 1; + + } + +#endif + + return error; + } + + /* Set errno variable */ + static void + dirent_set_errno( + int error) + { +#if defined(_MSC_VER) && _MSC_VER >= 1400 + + /* Microsoft Visual Studio 2005 and later */ + _set_errno(error); + +#else + + /* Non-Microsoft compiler or older Microsoft compiler */ + errno = error; + +#endif + } + + +#ifdef __cplusplus +} +#endif +#endif /*DIRENT_H*/ + diff --git a/src/libjin/3rdparty/smount/smount.c b/src/libjin/3rdparty/smount/smount.c new file mode 100644 index 0000000..c4e2ef0 --- /dev/null +++ b/src/libjin/3rdparty/smount/smount.c @@ -0,0 +1,200 @@ +#include <stdlib.h> +#include <stdio.h> +#include <sys/stat.h> +#include <string.h> +#include <vadefs.h> +#include "smount.h" +#include "dirent.h" + +#define isseparator(c) (c == '/' || c == '\\') + +static smtPath* smtnewpath(int type, const char* path, smtPath* next) +{ + smtPath* temp = (smtPath*)malloc(sizeof(smtPath)); + int len = strlen(path); + temp->path = (char*)malloc(len + 1); + memcpy(temp->path, path, len); + temp->path[len] = '\0'; + // trim trailing separator + while (isseparator(temp->path[--len])) + temp->path[len] = '\0'; + temp->next = next; + temp->type = type; + return temp; +} + +static const char* mkstr(const char* str) +{ + int len = strlen(str); + char* temp = (char*)malloc(strlen(str)); + memcpy(temp, str, len); + return temp; +} + +/** +* Create a new shared contex. +*/ +smtShared* smtnewshared() +{ + smtShared* shared = (smtShared*)malloc(sizeof(smtShared)); + shared->mount = 0; + return shared; +} + +/** +* Concatenate strings together. +*/ +char *concat(const char *str, ...) { + va_list args; + const char *s; + // Get len + int len = strlen(str); + va_start(args, str); + while ((s = va_arg(args, char*))) { + len += strlen(s); + } + va_end(args); + // Build string + char *res = (char*)malloc(len + 1); + if (!res) return NULL; + strcpy(res, str); + va_start(args, str); + while ((s = va_arg(args, char*))) { + strcat(res, s); + } + va_end(args); + return res; +} + +static int isdir(const char *path) { + struct stat s; + int res = stat(path, &s); + return S_ISDIR(s.st_mode); +} + +int smtmount(smtShared* S, const char *path) +{ + if (!isdir(path)) + { + return SMT_INVALIDMOUNT; + } + + S->mount = smtnewpath(PATH_DIR, path, 0); + + return SMT_SUCCESS; +} + +void smtunmount(smtShared* S) +{ + smtPath* mount = S->mount; + while (mount) + { + free(mount->path); + mount = mount->next; + } +} + +int smtexists(smtShared* S, const char *path) +{ + char* r = concat(S->mount->path, "/", path, 0); + if (!r) return SMT_NOSUCHDIR; + struct stat s; + int res = stat(r, &s); + free(r); + if (res == 0) + return SMT_SUCCESS; + return SMT_NOSUCHDIR; +} + +static struct stat smtgetstat(smtShared* S, const char*path) +{ + char* r = concat(S->mount->path, "/", path, 0); + struct stat s = {}; + if (!r) return s; + int res = stat(r, &s); + free(r); + return s; +} + +int smtisdir(smtShared* S, const char *path) +{ + struct stat s = smtgetstat(S, path); + return S_ISDIR(s.st_mode); +} + +int smtisreg(smtShared* S, const char *path) +{ + struct stat s = smtgetstat(S, path); + return S_ISREG(s.st_mode); +} + +const char* smterrstr(int e) +{ + switch (e) + { + case SMT_INVALIDMOUNT: return "invalid mount directory"; + default: return "unknown error"; + } +} + +void *smtread(smtShared* S, const char *path, unsigned int *size) +{ + if (!smtisreg(S, path)) return 0; + int fr = 0; + if (size == 0) + { + fr = 1; + size = (unsigned int*)malloc(sizeof(unsigned int)); + } + char *r = concat(S->mount->path, "/", path, NULL); + if (!r) return NULL; + FILE *fp = fopen(r, "rb"); + free(r); + if (!fp) return 0; + /* Get file size */ + fseek(fp, 0, SEEK_END); + *size = ftell(fp); + /* Load file */ + fseek(fp, 0, SEEK_SET); + char *res = (char*)malloc(*size + 1); + if (!res) return NULL; + res[*size] = '\0'; + if (fread(res, 1, *size, fp) != *size) { + free(res); + fclose(fp); + return NULL; + } + fclose(fp); + if (fr) free(size); + return res; +} + +char* smtfullpath(smtShared* S, const char* path) +{ + return concat(S->mount->path, "/", path, 0); +} + +int smtsize(smtShared* S, const char *path) +{ + struct stat s = smtgetstat(S, path); + return s.st_size; +} + +void smtdelete(smtShared* S, const char *path) +{ + char* name = smtfullpath(S, path); + remove(name); + free(name); +} + +int smtwrite(smtShared* S, const char *path, const void *data, int size) +{ + char* name = smtfullpath(S, path); + if (!name) return SMT_NOSUCHDIR; + FILE *fp = fopen(name, "wb"); + free(name); + if (!fp) return SMT_UNABLEOPEN; + int res = fwrite(data, size, 1, fp); + fclose(fp); + return (res == 1) ? SMT_SUCCESS : SMT_CANTWRITE; +}
\ No newline at end of file diff --git a/src/libjin/3rdparty/smount/smount.h b/src/libjin/3rdparty/smount/smount.h new file mode 100644 index 0000000..c0836a7 --- /dev/null +++ b/src/libjin/3rdparty/smount/smount.h @@ -0,0 +1,89 @@ +/** +* Copyright (c) 2018 chai +*/ +#ifndef SMOUNT_H +#define SMOUNT_H + +// path type +enum +{ + PATH_DIR = 1, // directory + PATH_REG = 2 // regular file +}; + +// sm status +enum +{ + SMT_SUCCESS = 0, + SMT_INVALIDMOUNT = 1, // invalid mount directory. + SMT_NOSUCHDIR = 2, // directory or file doesn't exsist. + SMT_UNABLEOPEN = 3, // + SMT_CANTWRITE = 4, +}; + +typedef struct smtPath +{ + int type; + char* path; + struct smtPath* next; +}smtPath; + +/** +* A shared context structrue. +*/ +typedef struct smtShared +{ + smtPath* mount; // the root directory +}smtShared; + +smtShared* smtnewshared(); + +void smtcloseshared(smtShared* S); + +/** +* Get error string with given error code. +*/ +const char *smterrstr(int err); + +/** +* Mount a sub file system. +*/ +int smtmount(smtShared* S, const char *path); + +/** +* Free mount +*/ +void smtunmount(smtShared* S); + +int smtexists(smtShared* S, const char *path); + +/** +* Get size of a file. +*/ +int smtsize(smtShared* S, const char *path); + +/** +* Can only read files under root directory. +*/ +void *smtread(smtShared* S, const char *path, unsigned int *size); + +int smtisdir(smtShared* S, const char *path); + +int smtisreg(smtShared* S, const char *path); + +/** +* List all folders and files inside current mount directory. +*/ +smtPath *smtlist(smtShared*S, const char *path); + +void smtfreelist(smtPath* S); + +int smtwrite(smtShared* S, const char *path, const void *data, int size); + +void smtdelete(smtShared* S, const char *path); + +int smtmkdir(smtShared* S, const char *path); + +char* smtfullpath(smtShared* S, const char* path); + +#endif
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