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/*
grouplist.c -- determine list of all groups in the spool.
Copyright (C) 2002 - 2010 Matthias Andree
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "leafnode.h"
#include "mastring.h"
#include <unistd.h>
#include <sys/types.h>
#include "system.h"
#include <sys/stat.h>
#include <string.h>
#include <stdlib.h>
#include "wantassert.h"
#include <assert.h>
#ifdef TEST
#include <stdio.h>
#else
#include "ln_log.h"
#endif
static int myscandir(struct stringlist **l, const char *prefix, int toplevel)
{
DIR *d = opendir(".");
struct dirent *de;
int added = 0, founddir = 0;
assert(l);
assert(prefix);
if (d == NULL) {
#ifdef TEST
fprintf(stderr, "cannot open directory: %s, see next error\n", strerror(errno));
#else
ln_log(LNLOG_SERR, LNLOG_CTOP,
"cannot open directory: %m, see next error");
#endif
return -1;
}
while ((de = readdir(d)) != NULL) {
struct stat st;
mastr *p;
if (strcmp(de->d_name, ".overview") != 0
&& strchr(de->d_name, '.') != NULL) {
continue;
}
if (toplevel && strcmp(de->d_name, "lost+found") == 0) {
continue;
}
p = mastr_new(4096);
if (lstat(de->d_name, &st)) goto bail;
if (added == 0 && S_ISREG(st.st_mode)) {
added = 1;
prependtolist(l, prefix);
} else if (S_ISDIR(st.st_mode)) {
int offset;
founddir = 1;
offset = (de->d_name[0] == '-');
if (prefix != NULL && *prefix != '\0')
(void)mastr_vcat(p, prefix, ".", de->d_name + offset, NULL);
else
(void)mastr_cpy(p, de->d_name);
if (chdir(de->d_name) == 0) {
if (myscandir(l, mastr_str(p), 0)) {
#ifdef TEST
fprintf(stderr, "myscandir(\"%s\") failed.\n", de->d_name);
#else
ln_log(LNLOG_SERR, LNLOG_CTOP, "myscandir(\"%s\") failed.", de->d_name);
#endif
goto bail;
}
if (chdir("..")) goto bail;
} else {
#ifdef TEST
fprintf(stderr, "chdir(\"%s\") failed: %s\n", de->d_name, strerror(errno));
#else
ln_log(LNLOG_SERR, LNLOG_CTOP, "chdir(\"%s\") failed: %m", de->d_name);
#endif
}
mastr_delete(p);
continue;
bail:
mastr_delete(p);
(void)closedir(d);
return -1;
}
mastr_delete(p);
}
(void)closedir(d);
if (!added && !founddir) {
prependtolist(l, prefix);
}
return 0;
}
/*@null@*/ struct stringlist *
get_grouplist(void)
{
struct stringlist *g = NULL;
if (chdir(spooldir)) return NULL;
if (myscandir(&g, "", 1) != 0 && g != NULL) {
freelist(g);
g = NULL;
}
return g;
}
#ifdef TEST
int verbose=0;
int debug=0;
int main(int argc, char **argv) {
struct stringlist *t, *q, *l;
if (argc > 1) { spooldir = argv[1]; }
l = get_grouplist();
if (!l) fputs("failed\n", stderr);
else for (t = l; t; ) {
puts(t->string);
q = t->next;
free(t);
t = q;
}
return 0;
}
#endif
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