diff options
author | Björn-Egil Dahlberg <[email protected]> | 2012-07-25 15:00:32 +0200 |
---|---|---|
committer | Björn-Egil Dahlberg <[email protected]> | 2012-07-25 15:00:32 +0200 |
commit | a7bcc6aa05bc61edd1ac178b6331e780aeab940f (patch) | |
tree | af6cb90b11c95744135e233478c89b55fede8bf7 /erts/emulator/drivers/unix/unix_efile.c | |
parent | 81664b189c21710767b78a9db9d74d55585cfeed (diff) | |
parent | 84bc4fb47b58f258a50e23ba96db51608272b859 (diff) | |
download | otp-a7bcc6aa05bc61edd1ac178b6331e780aeab940f.tar.gz otp-a7bcc6aa05bc61edd1ac178b6331e780aeab940f.tar.bz2 otp-a7bcc6aa05bc61edd1ac178b6331e780aeab940f.zip |
Merge branch 'egil/r16/remove-vxworks-support/OTP-10146'
* egil/r16/remove-vxworks-support/OTP-10146: (30 commits)
erts: Update doc to reflect VxWorks removal
erts: Remove VxWorks from documentation
Update preloaded erl_prim_loader and prim_file
snmp: Remove VxWorks
megaco: Remove VxWorks
diameter: Remove VxWorks
mnesia: Remove VxWorks
typer: Remove VxWorks
ssh: Remove VxWorks
inets: Remove VxWorks
hipe: Remove VxWorks
cosFileTransfer: Remove VxWorks
asn1: Remove VxWorks
orber: Remove VxWorks
os_mon: Remove VxWorks
runtime_tools: Remove VxWorks
test_server: Remove VxWorks references in doc
test_server: Remove VxWorks
stdlib: Remove VxWorks
kernel: Remove VxWorks from tests
...
Conflicts:
erts/emulator/test/Makefile
Diffstat (limited to 'erts/emulator/drivers/unix/unix_efile.c')
-rw-r--r-- | erts/emulator/drivers/unix/unix_efile.c | 561 |
1 files changed, 3 insertions, 558 deletions
diff --git a/erts/emulator/drivers/unix/unix_efile.c b/erts/emulator/drivers/unix/unix_efile.c index b250bac4dc..2aa373aa7d 100644 --- a/erts/emulator/drivers/unix/unix_efile.c +++ b/erts/emulator/drivers/unix/unix_efile.c @@ -45,23 +45,6 @@ #include <fcntl.h> #endif /* DARWIN */ -#ifdef VXWORKS -#include <ioLib.h> -#include <dosFsLib.h> -#include <nfsLib.h> -#include <sys/stat.h> -/* -** Not nice to include usrLib.h as MANY normal variable names get reported -** as shadowing globals, like 'i' for example. -** Instead we declare the only function we use here -*/ -/* - * #include <usrLib.h> - */ -extern STATUS copy(char *, char *); -#include <errno.h> -#endif - #ifdef SUNOS4 # define getcwd(buf, size) getwd(buf) #endif @@ -93,276 +76,27 @@ extern STATUS copy(char *, char *); #define DIR_MODE 0777 #endif -#ifdef VXWORKS /* Currently only used on vxworks */ - -#define EF_ALLOC(S) driver_alloc((S)) -#define EF_REALLOC(P, S) driver_realloc((P), (S)) -#define EF_SAFE_ALLOC(S) ef_safe_alloc((S)) -#define EF_SAFE_REALLOC(P, S) ef_safe_realloc((P), (S)) -#define EF_FREE(P) do { if((P)) driver_free((P)); } while(0) - -void erl_exit(int n, char *fmt, ...); - -static void *ef_safe_alloc(Uint s) -{ - void *p = EF_ALLOC(s); - if (!p) erl_exit(1, - "unix efile drv: Can't allocate %lu bytes of memory\n", - (unsigned long)s); - return p; -} - -#if 0 /* Currently not used */ - -static void *ef_safe_realloc(void *op, Uint s) -{ - void *p = EF_REALLOC(op, s); - if (!p) erl_exit(1, - "unix efile drv: Can't reallocate %lu bytes of memory\n", - (unsigned long)s); - return p; -} - -#endif /* #if 0 */ -#endif /* #ifdef VXWORKS */ - #define IS_DOT_OR_DOTDOT(s) \ (s[0] == '.' && (s[1] == '\0' || (s[1] == '.' && s[2] == '\0'))) -#ifdef VXWORKS -static int vxworks_to_posix(int vx_errno); -#endif - -/* -** VxWorks (not) strikes again. Too long RESULTING paths -** may give the infamous bus error. Have to check ALL -** filenames and pathnames. No wonder the emulator is slow on -** these cards... -*/ -#ifdef VXWORKS -#define CHECK_PATHLEN(Name, ErrInfo) \ - if (path_size(Name) > PATH_MAX) { \ - errno = ENAMETOOLONG; \ - return check_error(-1, ErrInfo); \ - } -#else -#define CHECK_PATHLEN(X,Y) /* Nothing */ -#endif - static int check_error(int result, Efile_error* errInfo); static int check_error(int result, Efile_error *errInfo) { if (result < 0) { -#ifdef VXWORKS - errInfo->posix_errno = errInfo->os_errno = vxworks_to_posix(errno); -#else errInfo->posix_errno = errInfo->os_errno = errno; -#endif return 0; } return 1; } -#ifdef VXWORKS - -/* - * VxWorks has different error codes for different file systems. - * We map those to POSIX ones. - */ -static int -vxworks_to_posix(int vx_errno) -{ - DEBUGF(("[vxworks_to_posix] vx_errno: %08x\n", vx_errno)); - switch (vx_errno) { - /* dosFsLib mapping */ -#ifdef S_dosFsLib_FILE_ALREADY_EXISTS - case S_dosFsLib_FILE_ALREADY_EXISTS: return EEXIST; -#else - case S_dosFsLib_FILE_EXISTS: return EEXIST; -#endif -#ifdef S_dosFsLib_BAD_DISK - case S_dosFsLib_BAD_DISK: return EIO; -#endif -#ifdef S_dosFsLib_CANT_CHANGE_ROOT - case S_dosFsLib_CANT_CHANGE_ROOT: return EINVAL; -#endif -#ifdef S_dosFsLib_NO_BLOCK_DEVICE - case S_dosFsLib_NO_BLOCK_DEVICE: return ENOTBLK; -#endif -#ifdef S_dosFsLib_BAD_SEEK - case S_dosFsLib_BAD_SEEK: return ESPIPE; -#endif - case S_dosFsLib_VOLUME_NOT_AVAILABLE: return ENXIO; - case S_dosFsLib_DISK_FULL: return ENOSPC; - case S_dosFsLib_FILE_NOT_FOUND: return ENOENT; - case S_dosFsLib_NO_FREE_FILE_DESCRIPTORS: return ENFILE; - case S_dosFsLib_INVALID_NUMBER_OF_BYTES: return EINVAL; - case S_dosFsLib_ILLEGAL_NAME: return EINVAL; - case S_dosFsLib_CANT_DEL_ROOT: return EACCES; - case S_dosFsLib_NOT_FILE: return EISDIR; - case S_dosFsLib_NOT_DIRECTORY: return ENOTDIR; - case S_dosFsLib_NOT_SAME_VOLUME: return EXDEV; - case S_dosFsLib_READ_ONLY: return EACCES; - case S_dosFsLib_ROOT_DIR_FULL: return ENOSPC; - case S_dosFsLib_DIR_NOT_EMPTY: return EEXIST; - case S_dosFsLib_NO_LABEL: return ENXIO; - case S_dosFsLib_INVALID_PARAMETER: return EINVAL; - case S_dosFsLib_NO_CONTIG_SPACE: return ENOSPC; - case S_dosFsLib_FD_OBSOLETE: return EBADF; - case S_dosFsLib_DELETED: return EINVAL; - case S_dosFsLib_INTERNAL_ERROR: return EIO; - case S_dosFsLib_WRITE_ONLY: return EACCES; - /* nfsLib mapping - is needed since Windriver has used */ - /* inconsistent error codes (errno.h/nfsLib.h). */ - case S_nfsLib_NFS_OK: return 0; - case S_nfsLib_NFSERR_PERM: return EPERM; - case S_nfsLib_NFSERR_NOENT: return ENOENT; - case S_nfsLib_NFSERR_IO: return EIO; - case S_nfsLib_NFSERR_NXIO: return ENXIO; -#ifdef S_nfsLib_NFSERR_ACCES - case S_nfsLib_NFSERR_ACCES: return EACCES; -#else - case S_nfsLib_NFSERR_ACCESS: return EACCES; -#endif - case S_nfsLib_NFSERR_EXIST: return EEXIST; - case S_nfsLib_NFSERR_NODEV: return ENODEV; - case S_nfsLib_NFSERR_NOTDIR: return ENOTDIR; - case S_nfsLib_NFSERR_ISDIR: return EISDIR; - case S_nfsLib_NFSERR_FBIG: return EFBIG; - case S_nfsLib_NFSERR_NOSPC: return ENOSPC; - case S_nfsLib_NFSERR_ROFS: return EROFS; - case S_nfsLib_NFSERR_NAMETOOLONG: return ENAMETOOLONG; - case S_nfsLib_NFSERR_NOTEMPTY: return EEXIST; - case S_nfsLib_NFSERR_DQUOT: return ENOSPC; - case S_nfsLib_NFSERR_STALE: return EINVAL; - case S_nfsLib_NFSERR_WFLUSH: return ENXIO; - /* And sometimes (...) the error codes are from ioLib (as in the */ - /* case of the (for nfsLib) unimplemented rename function) */ - case S_ioLib_DISK_NOT_PRESENT: return EIO; -#if S_ioLib_DISK_NOT_PRESENT != S_ioLib_NO_DRIVER - case S_ioLib_NO_DRIVER: return ENXIO; -#endif - case S_ioLib_UNKNOWN_REQUEST: return ENOSYS; - case S_ioLib_DEVICE_TIMEOUT: return EIO; -#ifdef S_ioLib_UNFORMATED - /* Added (VxWorks 5.2 -> 5.3.1) */ - #if S_ioLib_UNFORMATED != S_ioLib_DEVICE_TIMEOUT - case S_ioLib_UNFORMATED: return EIO; - #endif -#endif -#if S_ioLib_DEVICE_TIMEOUT != S_ioLib_DEVICE_ERROR - case S_ioLib_DEVICE_ERROR: return ENXIO; -#endif - case S_ioLib_WRITE_PROTECTED: return EACCES; - case S_ioLib_NO_FILENAME: return EINVAL; - case S_ioLib_CANCELLED: return EINTR; - case S_ioLib_NO_DEVICE_NAME_IN_PATH: return EINVAL; - case S_ioLib_NAME_TOO_LONG: return ENAMETOOLONG; -#ifdef S_objLib_OBJ_UNAVAILABLE - case S_objLib_OBJ_UNAVAILABLE: return ENOENT; -#endif - - /* Temporary workaround for a weird error in passFs - (VxWorks Simsparc only). File operation fails because of - ENOENT, but errno is not set. */ -#ifdef SIMSPARCSOLARIS - case 0: return ENOENT; -#endif - - } - /* If the error code matches none of the above, assume */ - /* it is a POSIX one already. The upper bits (>=16) are */ - /* cleared since VxWorks uses those bits to indicate in */ - /* what module the error occured. */ - return vx_errno & 0xffff; -} - -static int -vxworks_enotsup(Efile_error *errInfo) -{ - errInfo->posix_errno = errInfo->os_errno = ENOTSUP; - return 0; -} - -static int -count_path_length(char *pathname, char *pathname2) -{ - static int stack[PATH_MAX / 2 + 1]; - int sp = 0; - char *tmp; - char *cpy = NULL; - int i; - int sum; - for(i = 0;i < 2;++i) { - if (!i) { - cpy = EF_SAFE_ALLOC(strlen(pathname)+1); - strcpy(cpy, pathname); - } else if (pathname2 != NULL) { - EF_FREE(cpy); - cpy = EF_SAFE_ALLOC(strlen(pathname2)+1); - strcpy(cpy, pathname2); - } else - break; - - for (tmp = strtok(cpy,"/"); tmp != NULL; tmp = strtok(NULL,"/")) { - if (!strcmp(tmp,"..") && sp > 0) - --sp; - else if (strcmp(tmp,".")) - stack[sp++] = strlen(tmp); - } - } - if (cpy != NULL) - EF_FREE(cpy); - sum = 0; - for(i = 0;i < sp; ++i) - sum += stack[i]+1; - return (sum) ? sum : 1; -} - -static int -path_size(char *pathname) -{ - static char currdir[PATH_MAX+2]; - if (*pathname == '/') - return count_path_length(pathname,NULL); - ioDefPathGet(currdir); - strcat(currdir,"/"); - return count_path_length(currdir,pathname); -} - -#endif /* VXWORKS */ - int efile_mkdir(Efile_error* errInfo, /* Where to return error codes. */ char* name) /* Name of directory to create. */ { - CHECK_PATHLEN(name,errInfo); #ifdef NO_MKDIR_MODE -#ifdef VXWORKS - /* This is a VxWorks/nfs workaround for erl_tar to create - * non-existant directories. (of some reason (...) VxWorks - * returns, the *non-module-prefixed*, 0xd code when - * trying to create a directory in a directory that doesn't exist). - * (see efile_openfile) - */ - if (mkdir(name) < 0) { - struct stat sb; - if (name[0] == '\0') { - /* Return the correct error code enoent */ - errno = S_nfsLib_NFSERR_NOENT; - } else if (stat(name, &sb) == OK) { - errno = S_nfsLib_NFSERR_EXIST; - } else if((strchr(name, '/') != NULL) && (errno == 0xd)) { - /* Return the correct error code enoent */ - errno = S_nfsLib_NFSERR_NOENT; - } - return check_error(-1, errInfo); - } else return 1; -#else return check_error(mkdir(name), errInfo); -#endif #else return check_error(mkdir(name, DIR_MODE), errInfo); #endif @@ -372,16 +106,9 @@ int efile_rmdir(Efile_error* errInfo, /* Where to return error codes. */ char* name) /* Name of directory to delete. */ { - CHECK_PATHLEN(name, errInfo); if (rmdir(name) == 0) { return 1; } -#ifdef VXWORKS - if (name[0] == '\0') { - /* Return the correct error code enoent */ - errno = S_nfsLib_NFSERR_NOENT; - } -#else if (errno == ENOTEMPTY) { errno = EEXIST; } @@ -401,7 +128,6 @@ efile_rmdir(Efile_error* errInfo, /* Where to return error codes. */ } errno = saved_errno; } -#endif return check_error(-1, errInfo); } @@ -409,7 +135,6 @@ int efile_delete_file(Efile_error* errInfo, /* Where to return error codes. */ char* name) /* Name of file to delete. */ { - CHECK_PATHLEN(name,errInfo); if (unlink(name) == 0) { return 1; } @@ -457,32 +182,13 @@ efile_rename(Efile_error* errInfo, /* Where to return error codes. */ char* src, /* Original name. */ char* dst) /* New name. */ { - CHECK_PATHLEN(src,errInfo); - CHECK_PATHLEN(dst,errInfo); -#ifdef VXWORKS - - /* First check if src == dst, if so, just return. */ - /* VxWorks dos file system destroys the file otherwise, */ - /* VxWorks nfs file system rename doesn't work at all. */ - if(strcmp(src, dst) == 0) - return 1; -#endif if (rename(src, dst) == 0) { return 1; } -#ifdef VXWORKS - /* nfs for VxWorks doesn't support rename. We try to emulate it */ - /* (by first copying src to dst and then deleting src). */ - if(errno == S_ioLib_UNKNOWN_REQUEST && /* error code returned - by ioLib (!) */ - copy(src, dst) == OK && - unlink(src) == OK) - return 1; -#endif if (errno == ENOTEMPTY) { errno = EEXIST; } -#if defined (sparc) && !defined(VXWORKS) +#if defined (sparc) /* * SunOS 4.1.4 reports overwriting a non-empty directory with a * directory as EINVAL instead of EEXIST (first rule out the correct @@ -543,7 +249,6 @@ int efile_chdir(Efile_error* errInfo, /* Where to return error codes. */ char* name) /* Name of directory to make current. */ { - CHECK_PATHLEN(name, errInfo); return check_error(chdir(name), errInfo); } @@ -600,8 +305,6 @@ efile_readdir(Efile_error* errInfo, /* Where to return error codes. */ * If this is the first call, we must open the directory. */ - CHECK_PATHLEN(name, errInfo); - if (*p_dir_handle == NULL) { dp = opendir(name); if (dp == NULL) @@ -641,26 +344,8 @@ efile_openfile(Efile_error* errInfo, /* Where to return error codes. */ struct stat statbuf; int fd; int mode; /* Open mode. */ -#ifdef VXWORKS - char pathbuff[PATH_MAX+2]; - char sbuff[PATH_MAX*2]; - char *totbuff = sbuff; - int nameneed; -#endif - - - CHECK_PATHLEN(name, errInfo); - -#ifdef VXWORKS - /* Have to check that it's not a directory. */ - if (stat(name,&statbuf) != ERROR && ISDIR(statbuf)) { - errno = EISDIR; - return check_error(-1, errInfo); - } -#endif if (stat(name, &statbuf) >= 0 && !ISREG(statbuf)) { -#if !defined(VXWORKS) && !defined(OSE) /* * For UNIX only, here is some ugly code to allow * /dev/null to be opened as a file. @@ -677,12 +362,9 @@ efile_openfile(Efile_error* errInfo, /* Where to return error codes. */ } } if (!(dev_null_ino && statbuf.st_ino == dev_null_ino)) { -#endif errno = EISDIR; return check_error(-1, errInfo); -#if !defined(VXWORKS) && !defined(OSE) } -#endif } switch (flags & (EFILE_MODE_READ|EFILE_MODE_WRITE)) { @@ -706,49 +388,14 @@ efile_openfile(Efile_error* errInfo, /* Where to return error codes. */ if (flags & EFILE_MODE_APPEND) { mode &= ~O_TRUNC; -#ifndef VXWORKS - mode |= O_APPEND; /* Dont make VxWorks think things it shouldn't */ -#endif + mode |= O_APPEND; } if (flags & EFILE_MODE_EXCL) { mode |= O_EXCL; } -#ifdef VXWORKS - if (*name != '/') { - /* Make sure it is an absolute pathname, because ftruncate needs it */ - ioDefPathGet(pathbuff); - strcat(pathbuff,"/"); - nameneed = strlen(pathbuff) + strlen(name) + 1; - if (nameneed > PATH_MAX*2) - totbuff = EF_SAFE_ALLOC(nameneed); - strcpy(totbuff,pathbuff); - strcat(totbuff,name); - fd = open(totbuff, mode, FILE_MODE); - if (totbuff != sbuff) - EF_FREE(totbuff); - } else { - fd = open(name, mode, FILE_MODE); - } -#else fd = open(name, mode, FILE_MODE); -#endif - -#ifdef VXWORKS - - /* This is a VxWorks/nfs workaround for erl_tar to create - * non-existant directories. (of some reason (...) VxWorks - * returns, the *non-module-prefixed*, 0xd code when - * trying to write a file in a directory that doesn't exist). - * (see efile_mkdir) - */ - if ((fd < 0) && (strchr(name, '/') != NULL) && (errno == 0xd)) { - /* Return the correct error code enoent */ - errno = S_nfsLib_NFSERR_NOENT; - return check_error(-1, errInfo); - } -#endif if (!check_error(fd, errInfo)) return 0; @@ -797,11 +444,7 @@ efile_fsync(Efile_error *errInfo, /* Where to return error codes. */ int fd) /* File descriptor for file to sync. */ { #ifdef NO_FSYNC -#ifdef VXWORKS - return check_error(ioctl(fd, FIOSYNC, 0), errInfo); -#else - undefined fsync -#endif /* VXWORKS */ + undefined fsync /* XXX: Really? */ #else #if defined(DARWIN) && defined(F_FULLFSYNC) return check_error(fcntl(fd, F_FULLFSYNC), errInfo); @@ -818,21 +461,8 @@ efile_fileinfo(Efile_error* errInfo, Efile_info* pInfo, struct stat statbuf; /* Information about the file */ int result; -#ifdef VXWORKS - if (*name == '\0') { - errInfo->posix_errno = errInfo->os_errno = ENOENT; - return 0; - } -#endif - - CHECK_PATHLEN(name, errInfo); - if (info_for_link) { -#if (defined(VXWORKS)) - result = stat(name, &statbuf); -#else result = lstat(name, &statbuf); -#endif } else { result = stat(name, &statbuf); } @@ -849,19 +479,9 @@ efile_fileinfo(Efile_error* errInfo, Efile_info* pInfo, #ifdef NO_ACCESS /* Just look at read/write access for owner. */ -#ifdef VXWORKS - - pInfo->access = FA_NONE; - if(statbuf.st_mode & S_IRUSR) - pInfo->access |= FA_READ; - if(statbuf.st_mode & S_IWUSR) - pInfo->access |= FA_WRITE; - -#else pInfo->access = ((statbuf.st_mode >> 6) & 07) >> 1; -#endif /* VXWORKS */ #else pInfo->access = FA_NONE; if (access(name, R_OK) == 0) @@ -902,35 +522,6 @@ efile_write_info(Efile_error *errInfo, Efile_info *pInfo, char *name) { struct utimbuf tval; - CHECK_PATHLEN(name, errInfo); - -#ifdef VXWORKS - - if (pInfo->mode != -1) { - int fd; - struct stat statbuf; - - fd = open(name, O_RDONLY, 0); - if (!check_error(fd, errInfo)) - return 0; - if (fstat(fd, &statbuf) < 0) { - close(fd); - return check_error(-1, errInfo); - } - if (pInfo->mode & S_IWUSR) { - /* clear read only bit */ - statbuf.st_attrib &= ~DOS_ATTR_RDONLY; - } else { - /* set read only bit */ - statbuf.st_attrib |= DOS_ATTR_RDONLY; - } - /* This should work for dos files but not for nfs ditos, so don't - * report errors (to avoid problems when running e.g. erl_tar) - */ - ioctl(fd, FIOATTRIBSET, statbuf.st_attrib); - close(fd); - } -#else /* * On some systems chown will always fail for a non-root user unless * POSIX_CHOWN_RESTRICTED is not set. Others will succeed as long as @@ -952,20 +543,10 @@ efile_write_info(Efile_error *errInfo, Efile_info *pInfo, char *name) } } -#endif /* !VXWORKS */ - tval.actime = pInfo->accessTime; tval.modtime = pInfo->modifyTime; -#ifdef VXWORKS - /* VxWorks' utime doesn't work when the file is a nfs mounted - * one, don't report error if utime fails. - */ - utime(name, &tval); - return 1; -#else return check_error(utime(name, &tval), errInfo); -#endif } @@ -979,11 +560,6 @@ efile_write(Efile_error* errInfo, /* Where to return error codes. */ { ssize_t written; /* Bytes written in last operation. */ -#ifdef VXWORKS - if (flags & EFILE_MODE_APPEND) { - lseek(fd, 0, SEEK_END); /* Naive append emulation on VXWORKS */ - } -#endif while (count > 0) { if ((written = write(fd, buf, count)) < 0) { if (errno != EINTR) @@ -1012,12 +588,6 @@ efile_writev(Efile_error* errInfo, /* Where to return error codes */ ASSERT(iovcnt >= 0); -#ifdef VXWORKS - if (flags & EFILE_MODE_APPEND) { - lseek(fd, 0, SEEK_END); /* Naive append emulation on VXWORKS */ - } -#endif - while (cnt < iovcnt) { if ((! iov[cnt].iov_base) || (iov[cnt].iov_len <= 0)) { /* Empty buffer - skip */ @@ -1226,118 +796,6 @@ efile_seek(Efile_error* errInfo, /* Where to return error codes. */ int efile_truncate_file(Efile_error* errInfo, int *fd, int flags) { -#ifdef VXWORKS - off_t offset; - char namebuf[PATH_MAX+1]; - char namebuf2[PATH_MAX+10]; - int new; - int dummy; - int i; - int left; - static char buff[1024]; - struct stat st; - Efile_error tmperr; - - if ((offset = lseek(*fd, 0, 1)) < 0) { - return check_error((int) offset,errInfo); - } - if (ftruncate(*fd, offset) < 0) { - if (vxworks_to_posix(errno) != EINVAL) { - return check_error(-1, errInfo); - } - /* - ** Kludge - */ - if(ioctl(*fd,FIOGETNAME,(int) namebuf) < 0) { - return check_error(-1, errInfo); - } - for(i=0;i<1000;++i) { - sprintf(namebuf2,"%s%d",namebuf,i); - CHECK_PATHLEN(namebuf2,errInfo); - if (stat(namebuf2,&st) < 0) { - break; - } - } - if (i > 1000) { - errno = EINVAL; - return check_error(-1, errInfo); - } - if (close(*fd) < 0) { - return check_error(-1, errInfo); - } - if (efile_rename(&tmperr,namebuf,namebuf2) < 0) { - i = check_error(-1,&tmperr); - if (!efile_openfile(errInfo,namebuf,flags | EFILE_NO_TRUNCATE, - fd,&dummy)) { - *fd = -1; - } else { - *errInfo = tmperr; - } - return i; - } - if ((*fd = open(namebuf2, O_RDONLY, 0)) < 0) { - i = check_error(-1,errInfo); - efile_rename(&tmperr,namebuf2,namebuf); /* at least try */ - if (!efile_openfile(errInfo,namebuf,flags | EFILE_NO_TRUNCATE, - fd,&dummy)) { - *fd = -1; - } else { - lseek(*fd,offset,SEEK_SET); - } - return i; - } - /* Point of no return... */ - - if ((new = open(namebuf,O_RDWR | O_CREAT, FILE_MODE)) < 0) { - close(*fd); - *fd = -1; - return 0; - } - left = offset; - - while (left) { - if ((i = read(*fd,buff,(left > 1024) ? 1024 : left)) < 0) { - i = check_error(-1,errInfo); - close(new); - close(*fd); - unlink(namebuf); - efile_rename(&tmperr,namebuf2,namebuf); /* at least try */ - if (!efile_openfile(errInfo,namebuf,flags | EFILE_NO_TRUNCATE, - fd,&dummy)) { - *fd = -1; - } else { - lseek(*fd,offset,SEEK_SET); - } - return i; - } - left -= i; - if (write(new,buff,i) < 0) { - i = check_error(-1,errInfo); - close(new); - close(*fd); - unlink(namebuf); - rename(namebuf2,namebuf); /* at least try */ - if (!efile_openfile(errInfo,namebuf,flags | EFILE_NO_TRUNCATE, - fd,&dummy)) { - *fd = -1; - } else { - lseek(*fd,offset,SEEK_SET); - } - return i; - } - } - close(*fd); - unlink(namebuf2); - close(new); - i = efile_openfile(errInfo,namebuf,flags | EFILE_NO_TRUNCATE,fd, - &dummy); - if (i) { - lseek(*fd,offset,SEEK_SET); - } - return i; - } - return 1; -#else #ifndef NO_FTRUNCATE off_t offset; @@ -1347,15 +805,11 @@ efile_truncate_file(Efile_error* errInfo, int *fd, int flags) #else return 1; #endif -#endif } int efile_readlink(Efile_error* errInfo, char* name, char* buffer, size_t size) { -#ifdef VXWORKS - return vxworks_enotsup(errInfo); -#else int len; ASSERT(size > 0); len = readlink(name, buffer, size-1); @@ -1364,7 +818,6 @@ efile_readlink(Efile_error* errInfo, char* name, char* buffer, size_t size) } buffer[len] = '\0'; return 1; -#endif } int @@ -1377,21 +830,13 @@ efile_altname(Efile_error* errInfo, char* name, char* buffer, size_t size) int efile_link(Efile_error* errInfo, char* old, char* new) { -#ifdef VXWORKS - return vxworks_enotsup(errInfo); -#else return check_error(link(old, new), errInfo); -#endif } int efile_symlink(Efile_error* errInfo, char* old, char* new) { -#ifdef VXWORKS - return vxworks_enotsup(errInfo); -#else return check_error(symlink(old, new), errInfo); -#endif } int |