125 lines
2.7 KiB
C
125 lines
2.7 KiB
C
#include "internal.h"
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#include <stdio.h>
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#include <dirent.h>
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#include <string.h>
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#include <errno.h>
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static int
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noDots(const struct dirent * e)
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{
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if ( e->d_name[0] == '.'
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&& (e->d_name[1] == '\0'
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|| (e->d_name[1] == '.' && e->d_name[2] == '\0')) )
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return 0;
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else
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return 1;
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}
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extern int
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descend(
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struct FileInfo *oldInfo
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,int (*function)(const struct FileInfo * i))
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{
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char pathname[1024];
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struct dirent * * names;
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struct dirent * * n;
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int length;
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char * filename;
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int status = 0;
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int count;
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if ( *oldInfo->source == '\0' ) {
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errno = EINVAL;
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return -1;
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}
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if ( oldInfo->stat.st_dev == 0
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&& oldInfo->stat.st_ino == 0
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&& oldInfo->stat.st_mode == 0 ) {
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if ( lstat(oldInfo->source, &oldInfo->stat) != 0 )
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return -1;
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oldInfo->isSymbolicLink = ((oldInfo->stat.st_mode & S_IFMT) == S_IFLNK);
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if ( oldInfo->isSymbolicLink )
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if ( stat(oldInfo->source, &oldInfo->stat) != 0 )
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memset((void *)&oldInfo->stat, 0, sizeof(oldInfo->stat));
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}
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if ( !oldInfo->processDirectoriesAfterTheirContents ) {
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if ( function )
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status = (*function)(oldInfo);
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if ( status == 0 )
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status = post_process(oldInfo);
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}
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if ( (count = scandir(oldInfo->source, &names, noDots, alphasort)) < 0 )
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return -1;
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length = strlen(oldInfo->source);
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if ( oldInfo->source[length-1] == '/' )
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length--;
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memcpy(pathname, oldInfo->source, length+1);
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pathname[length] = '/';
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filename = &pathname[length+1];
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n = names;
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while ( count-- > 0 ) {
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struct FileInfo i = *oldInfo;
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strcpy(filename, (*n)->d_name);
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free(*n++);
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if ( lstat(pathname, &i.stat) != 0 && errno != ENOENT ) {
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fprintf(stderr, "Can't stat %s: %s\n", pathname, strerror(errno));
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return -1;
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}
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i.isSymbolicLink = ((i.stat.st_mode & S_IFMT) == S_IFLNK);
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if ( i.isSymbolicLink )
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if ( stat(pathname, &i.stat) != 0 )
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memset((void *)&i.stat, 0, sizeof(i.stat));
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i.source = pathname;
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if ( i.dyadic ) {
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char d[1024];
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i.destination = join_paths(d, i.destination, &i.source[i.directoryLength]);
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}
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else
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i.destination = i.source;
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if ( !i.isSymbolicLink && (i.stat.st_mode & S_IFMT) == S_IFDIR )
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status = descend(&i, function);
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else {
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if ( function )
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status = (*function)(&i);
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if ( status == 0 )
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status = post_process(&i);
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}
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if ( !i.processDirectoriesAfterTheirContents
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&& status == 0
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&& (i.stat.st_mode & S_IFMT) == S_IFDIR )
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descend(&i, function);
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if ( status != 0 && !i.force ) {
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while ( count-- > 0 )
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free(*n++);
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break;
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}
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}
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free(names);
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if ( oldInfo->processDirectoriesAfterTheirContents ) {
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if ( function )
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status = (*function)(oldInfo);
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if ( status == 0 )
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status = post_process(oldInfo);
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}
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return status;
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}
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