125 lines
3.5 KiB
C
125 lines
3.5 KiB
C
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/* Copyright (c) 1992, 1993 by the University of Southern California
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* For copying and distribution information, please see the file
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* <usc-copyr.h>
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*/
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#include <usc-copyr.h>
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#include <pfs.h>
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#include <pparse.h>
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#include <psrv.h>
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#include <stdio.h>
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#include <perrno.h>
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#include <plog.h>
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#ifndef MAXPATHLEN
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#include <sys/param.h>
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#ifndef MAXPATHLEN
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#define MAXPATHLEN 1024
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#endif
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#endif
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#include <sys/stat.h>
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extern char *rindex();
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extern char shadow[];
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extern char dirshadow[];
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extern char dircont[];
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extern char pfsdat[];
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extern char aftpdir[];
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#define FILE_VNO 5 /* version # of the file format. Appears in
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this file and in dsrfinfo.c */
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/* Forward definitions */
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static FILE *open_shadow_outfile_A(char nm[], char **shadow_fnamep);
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static int write_data(FILE * outf, PFILE fi);
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/* Logs errors to plog() and returns an error code. */
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int
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dswfinfo(char *nm, PFILE fi)
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{
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int retval;
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FILE *outf;
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AUTOSTAT_CHARPP(shadow_fnamep);
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assert(fi); /* write_data cant handle null fi*/
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if (outf = open_shadow_outfile_A(nm,shadow_fnamep)) {
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retval = write_data(outf, fi);
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} else {
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return perrno;
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}
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locked_fclose_A(outf, *shadow_fnamep, FALSE);
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return retval;
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}
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static FILE *
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open_shadow_outfile_A(char nm[], char **shadow_fnamep)
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{
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char real_fname[MAXPATHLEN]; /* Filename after expansion */
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char shadow_dirname[MAXPATHLEN]; /* directory we create */
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char *sp; /* pointer to slash */
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FILE *outf;
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struct stat file_stat_dat;
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struct stat *file_stat = &file_stat_dat;
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nativize_prefix(nm, real_fname, sizeof(real_fname));
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/* Create the directory to contain the shadow file, if it doesn't already
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exist. */
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/* Is the shadow file a directory? */
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if ((stat(real_fname, file_stat) == 0) || (*nm != '/')) {
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if ((file_stat->st_mode & S_IFDIR) || (*nm != '/')) {
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*shadow_fnamep = qsprintf_stcopyr(*shadow_fnamep,
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"%s%s/%s", shadow, real_fname, dirshadow);
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} else {
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*shadow_fnamep = qsprintf_stcopyr(*shadow_fnamep,
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"%s%s", shadow, real_fname);
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}
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} else {
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plog(L_DATA_FRM_ERR, NOREQ, "Output data file doesnt already exist: %s",
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real_fname);
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perrno = PFAILURE;
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return NULL;
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}
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strcpy(shadow_dirname, *shadow_fnamep);
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assert(sp = rindex(shadow_dirname, '/')); /* must be true. */
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*sp = '\0';
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mkdirs(shadow_dirname);
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if ((outf = locked_fopen(*shadow_fnamep, "w")) == NULL) {
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plog(L_DATA_FRM_ERR, NOREQ, "Couldn't open the output data file %s",
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*shadow_fnamep);
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perrno = PFAILURE;
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}
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return outf;
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}
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static int
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write_data(FILE * outf, PFILE fi)
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{
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OUTPUT_ST out_st;
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OUTPUT out = &out_st;
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PATTRIB at;
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VLINK cur_fp;
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assert(fi);
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filetoout(outf, out);
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qoprintf(out, "VERSION %d\n", FILE_VNO);
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qoprintf(out, "MAGIC-NUMBER %d\n", fi->f_magic_no);
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/* Any forwarding pointers. */
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for (cur_fp = fi->forward; cur_fp; cur_fp = cur_fp->next) {
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qoprintf(out, "FORWARD ");
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out_link(out, cur_fp, 0, (TOKEN) NULL);
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}
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/* print out the object ACL if present */
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out_acl(out, fi->oacl);
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for (at = fi->attributes; at; at = at->next) {
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if (at->nature != ATR_NATURE_INTRINSIC) /* INTRINSIC attributes are
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written specially */
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out_atr(out, at, 0);
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}
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return PSUCCESS;
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}
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