diff options
Diffstat (limited to 'rtemsNfs/src/dirutils.c')
| -rw-r--r-- | rtemsNfs/src/dirutils.c | 323 |
1 files changed, 323 insertions, 0 deletions
diff --git a/rtemsNfs/src/dirutils.c b/rtemsNfs/src/dirutils.c new file mode 100644 index 0000000..91b1858 --- /dev/null +++ b/rtemsNfs/src/dirutils.c @@ -0,0 +1,323 @@ +/* $Id$ */ + +/* very crude and basic fs utilities for testing the NFS */ + +/* Till Straumann, <strauman@slac.stanford.edu>, 10/2002 */ + +/* + * Copyright 2002, Stanford University and + * Till Straumann <strauman@slac.stanford.edu> + * + * Stanford Notice + * *************** + * + * Acknowledgement of sponsorship + * * * * * * * * * * * * * * * * * + * This software was produced by the Stanford Linear Accelerator Center, + * Stanford University, under Contract DE-AC03-76SFO0515 with the Department + * of Energy. + * + * Government disclaimer of liability + * - - - - - - - - - - - - - - - - - + * Neither the United States nor the United States Department of Energy, + * nor any of their employees, makes any warranty, express or implied, + * or assumes any legal liability or responsibility for the accuracy, + * completeness, or usefulness of any data, apparatus, product, or process + * disclosed, or represents that its use would not infringe privately + * owned rights. + * + * Stanford disclaimer of liability + * - - - - - - - - - - - - - - - - - + * Stanford University makes no representations or warranties, express or + * implied, nor assumes any liability for the use of this software. + * + * This product is subject to the EPICS open license + * - - - - - - - - - - - - - - - - - - - - - - - - - + * Consult the LICENSE file or http://www.aps.anl.gov/epics/license/open.php + * for more information. + * + * Maintenance of notice + * - - - - - - - - - - - + * In the interest of clarity regarding the origin and status of this + * software, Stanford University requests that any recipient of it maintain + * this notice affixed to any distribution by the recipient that contains a + * copy or derivative of this software. + */ + +#ifdef __vxworks +#include <vxWorks.h> +#endif +#include <stdio.h> +#include <dirent.h> +#include <unistd.h> +#include <string.h> +#include <fcntl.h> +#include <sys/stat.h> +#include <errno.h> +#include <stdlib.h> + +#ifdef HAVE_CEXP +#include <cexpHelp.h> +#endif + +#define BUFFERSZ 10000 + +#ifndef __vxworks +int +pwd(void) +{ +char buf[MAXPATHLEN]; + + if ( !getcwd(buf,MAXPATHLEN)) { + perror("getcwd"); + return -1; + } else { + printf("%s\n",buf); + } + return 0; +} + +static int +ls_r(char *path, char *chpt, char *name, struct stat *buf) +{ +char *t; + sprintf(chpt, "/%s", name); + if (lstat(path,buf)) { + fprintf(stderr,"stat(%s): %s\n", path, strerror(errno)); + return -1; + } + switch ( buf->st_mode & S_IFMT ) { + case S_IFSOCK: + case S_IFIFO: t = "|"; break; + + default: + case S_IFREG: + case S_IFBLK: + case S_IFCHR: + t = ""; break; + case S_IFDIR: + t = "/"; break; + case S_IFLNK: + t = "@"; break; + } + + printf("%10li, %10lib, %5i.%-5i 0%04o %s%s\n", + buf->st_ino, + buf->st_size, + buf->st_uid, + buf->st_gid, + buf->st_mode & ~S_IFMT, + name, + t); + *chpt = 0; + return 0; +} + +int +ls(char *dir, char *opts) +{ +struct dirent *de; +char path[MAXPATHLEN+1]; +char *chpt; +DIR *dp = 0; +int rval = -1; +struct stat buf; + + if ( !dir ) + dir = "."; + + strncpy(path, dir, MAXPATHLEN); + path[MAXPATHLEN] = 0; + chpt = path+strlen(path); + + if ( !(dp=opendir(dir)) ) { + perror("opendir"); + goto cleanup; + } + + while ( (de = readdir(dp)) ) { + ls_r(path, chpt, de->d_name, &buf); + } + + rval = 0; + +cleanup: + if (dp) + closedir(dp); + return rval; +} +#endif + +#if 0 + fprintf(stderr, "usage: cp(""from"",[""to""[,""-f""]]\n"); + fprintf(stderr, " ""to""==NULL -> stdout\n"); + fprintf(stderr, " ""-f"" -> overwrite existing file\n"); +#endif + +int +cp(char *from, char *to, char *opts) +{ +struct stat st; +int got,put,tot; +char *buf = 0; +int rval = -1; +int ffd = -1; +int tfd = -1; +int flags = O_CREAT | O_WRONLY | O_TRUNC | O_EXCL; + + if (from) { + + if ((ffd=open(from,O_RDONLY,0)) < 0) { + fprintf(stderr, + "Opening %s for reading: %s\n", + from, + strerror(errno)); + goto cleanup; + } + + if (fstat(ffd, &st)) { + fprintf(stderr, + "rstat(%s): %s\n", + from, + strerror(errno)); + goto cleanup; + } + + + if (!S_ISREG(st.st_mode)) { + fprintf(stderr,"Refuse to copy a non-regular file\n"); + errno = EINVAL; + goto cleanup; + } + + } else { + ffd = fileno(stdin); + st.st_mode = 0644; + } + + if (opts && strchr(opts,'f')) + flags &= ~ O_EXCL; + + if (to) { + if ((tfd=open(to,flags,st.st_mode)) < 0) { + fprintf(stderr, + "Opening %s for writing: %s\n", + to, + strerror(errno)); + goto cleanup; + } + } else { + tfd = fileno(stdout); + } + + if ( !(buf = malloc(BUFFERSZ)) ) { + fprintf(stderr,"cp: unable to allocate buffer - out of memory\n"); + errno = ENOMEM; + goto cleanup; + } + + tot = 0; + while ( (got=read(ffd,buf,BUFFERSZ)) > 0 ) { + if (got !=(put=write(tfd,buf,got))) { + if (put<0) { + fprintf(stderr,"Write error: %s\n",strerror(errno)); + } else { + fprintf(stderr,"Write error: unable to write whole block\n"); + } + goto cleanup; + } + tot += got; + } + if (got < 0) { + fprintf(stderr,"Read error: %s\n",strerror(errno)); + goto cleanup; + } + rval = 0; + +cleanup: + free(buf); + + if (from && ffd>=0) + close(ffd); + if (to && tfd>=0) + close(tfd); + + return rval; +} + +int +ln(char *to, char *name, char *opts) +{ + if (!to) { + fprintf(stderr,"ln: need 'to' argument\n"); + return -1; + } + if (!name) { + if ( !(name = strrchr(to,'/')) ) { + fprintf(stderr, + "ln: 'unable to link %s to %s\n", + to,to); + return -1; + } + name++; + } + if (opts || strchr(opts,'s')) { + if (symlink(name,to)) { + fprintf(stderr,"symlink: %s\n",strerror(errno)); + return -1; + } + } else { + if (link(name,to)) { + fprintf(stderr,"hardlink: %s\n",strerror(errno)); + return -1; + } + } + return 0; +} + +int +rm(char *path) +{ + return unlink(path); +} + +int +cd(char *path) +{ + return chdir(path); +} + +#ifdef HAVE_CEXP +static CexpHelpTabRec _cexpHelpTabDirutils[]={ + HELP( +"copy a file: cp(""from"",[""to""[,""-f""]])\n\ + from = NULL <-- stdin\n\ + to = NULL --> stdout\n\ + option -f: overwrite existing file\n", + int, + cp, (char *from, char *to, char *options) + ), + HELP( +"list a directory: ls([""dir""])\n", + int, + ls, (char *dir) + ), + HELP( +"remove a file\n", + int, + rm, (char *path) + ), + HELP( +"change the working directory\n", + int, + cd, (char *path) + ), + HELP( +"create a link: ln(""to"",""name"",""[-s]""\n\ + -s creates a symlink\n", + int, + ln, (char *to, char *name, char *options) + ), + HELP("",,0,) +}; +#endif |