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Annotation of coherent/e/bin/pax/pass.c, revision 1.1

1.1     ! root        1: /* $Source: /src386/usr/bin/pax/pass.c,v $
        !             2:  *
        !             3:  * $Revision: 1.1 $
        !             4:  *
        !             5:  * pass.c - handle the pass option of cpio
        !             6:  *
        !             7:  * DESCRIPTION
        !             8:  *
        !             9:  *     These functions implement the pass options in PAX.  The pass option
        !            10:  *     copies files from one directory hierarchy to another.
        !            11:  * 
        !            12:  * AUTHOR
        !            13:  *
        !            14:  *     Mark H. Colburn, NAPS International ([email protected])
        !            15:  *
        !            16:  * Sponsored by The USENIX Association for public distribution. 
        !            17:  *
        !            18:  * Copyright (c) 1989 Mark H. Colburn.
        !            19:  * All rights reserved.
        !            20:  *
        !            21:  * Redistribution and use in source and binary forms are permitted
        !            22:  * provided that the above copyright notice is duplicated in all such 
        !            23:  * forms and that any documentation, advertising materials, and other 
        !            24:  * materials related to such distribution and use acknowledge that the 
        !            25:  * software was developed * by Mark H. Colburn and sponsored by The 
        !            26:  * USENIX Association. 
        !            27:  *
        !            28:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            29:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            30:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            31:  *
        !            32:  * $Log:       pass.c,v $
        !            33:  * Revision 1.1  92/08/28  08:02:22  bin
        !            34:  * Initial revision
        !            35:  * 
        !            36:  * Revision 1.1  89/02/14  16:48:05  jep
        !            37:  * Initial revision
        !            38:  * 
        !            39:  * Revision 1.1  88/12/23  18:02:20  mark
        !            40:  * Initial revision
        !            41:  * 
        !            42:  */
        !            43: 
        !            44: #ifndef lint
        !            45: static char *ident = "$Id: pass.c,v 1.1 92/08/28 08:02:22 bin Exp Locker: bin $";
        !            46: static char *copyright = "Copyright (c) 1989 Mark H. Colburn.\nAll rights reserved.\n";
        !            47: #endif /* ! lint */
        !            48: 
        !            49: 
        !            50: /* Headers */
        !            51: 
        !            52: #include "pax.h"
        !            53: 
        !            54: 
        !            55: /* pass - copy within the filesystem
        !            56:  *
        !            57:  * DESCRIPTION
        !            58:  *
        !            59:  *     Pass copies the named files from the current directory hierarchy to
        !            60:  *     the directory pointed to by dirname.
        !            61:  *
        !            62:  * PARAMETERS
        !            63:  *
        !            64:  *     char    *dirname        - name of directory to copy named files to.
        !            65:  *
        !            66:  */
        !            67: 
        !            68: #if __STDC__
        !            69:     
        !            70: int pass(char *dirname)
        !            71: 
        !            72: #else
        !            73:     
        !            74: int pass(dirname)
        !            75: char   *dirname;
        !            76: 
        !            77: #endif
        !            78: {
        !            79:     char            name[PATH_MAX + 1];
        !            80:     int             fd;
        !            81:     Stat            sb;
        !            82: 
        !            83:     while (name_next(name, &sb) >= 0 && (fd = openin(name, &sb)) >= 0) {
        !            84: 
        !            85:        if (rplhead != (Replstr *)NULL) {
        !            86:            rpl_name(name);
        !            87:        }
        !            88:        if (get_disposition("pass", name) || get_newname(name, sizeof(name))) {
        !            89:            /* skip file... */
        !            90:            if (fd) {
        !            91:                close(fd);
        !            92:            }
        !            93:            continue;
        !            94:        } 
        !            95: 
        !            96:        if (passitem(name, &sb, fd, dirname)) {
        !            97:            close(fd);
        !            98:        }
        !            99:        if (f_verbose) {
        !           100:            fprintf(stderr, "%s/%s\n", dirname, name);
        !           101:        }
        !           102:     }
        !           103: }
        !           104: 
        !           105: 
        !           106: /* passitem - copy one file
        !           107:  *
        !           108:  * DESCRIPTION
        !           109:  *
        !           110:  *     Passitem copies a specific file to the named directory
        !           111:  *
        !           112:  * PARAMETERS
        !           113:  *
        !           114:  *     char   *from    - the name of the file to open
        !           115:  *     Stat   *asb     - the stat block associated with the file to copy
        !           116:  *     int     ifd     - the input file descriptor for the file to copy
        !           117:  *     char   *dir     - the directory to copy it to
        !           118:  *
        !           119:  * RETURNS
        !           120:  *
        !           121:  *     Returns given input file descriptor or -1 if an error occurs.
        !           122:  *
        !           123:  * ERRORS
        !           124:  */
        !           125: 
        !           126: #if __STDC__
        !           127: 
        !           128: int passitem(char *from, Stat *asb, int ifd, char *dir)
        !           129: 
        !           130: #else
        !           131:     
        !           132: int passitem(from, asb, ifd, dir)
        !           133: char           *from;
        !           134: Stat           *asb;
        !           135: int             ifd;
        !           136: char           *dir;
        !           137: 
        !           138: #endif
        !           139: {
        !           140:     int             ofd;
        !           141:     time_t          tstamp[2];
        !           142:     char            to[PATH_MAX + 1];
        !           143: 
        !           144:     if (nameopt(strcat(strcat(strcpy(to, dir), "/"), from)) < 0) {
        !           145:        return (-1);
        !           146:     }
        !           147:     if (asb->sb_nlink > 1) {
        !           148:        linkto(to, asb);
        !           149:     }
        !           150:     if (f_link && islink(from, asb) == (Link *)NULL) {
        !           151:        linkto(from, asb);
        !           152:     }
        !           153:     if ((ofd = openout(to, asb, islink(to, asb), 1)) < 0) {
        !           154:        return (-1);
        !           155:     }
        !           156:     if (ofd > 0) {
        !           157:        passdata(from, ifd, to, ofd);
        !           158:     }
        !           159:     tstamp[0] = asb->sb_atime;
        !           160:     tstamp[1] = f_mtime ? asb->sb_mtime : time((time_t *) 0);
        !           161:     if (!f_modified)   /* VLAD */
        !           162:        utime(to, tstamp);
        !           163:     return (ifd);
        !           164: }

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