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