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https://github.com/servalproject/serval-dna.git
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4937757d36
Replace form_serval_instance_path(), which takes a single 'path' argument, with formf_serval_instance_path() and vformf_serval_instance_path(), which take printf(3)-like arguments. This supports more flexible instance path file names. FORM_SERVAL_INSTANCE_PATH() macro works as before, but reimplemented
77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
/*
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Serval DNA instance directory path
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Copyright (C) 2012 Serval Project Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <stdlib.h>
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#include "serval.h"
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#include "str.h"
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#include "os.h"
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#include "strbuf.h"
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#include "strbuf_helpers.h"
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static char *thisinstancepath = NULL;
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const char *serval_instancepath()
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{
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if (thisinstancepath)
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return thisinstancepath;
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const char *instancepath = getenv("SERVALINSTANCE_PATH");
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if (!instancepath)
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instancepath = DEFAULT_INSTANCE_PATH;
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return instancepath;
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}
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void serval_setinstancepath(const char *instancepath)
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{
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if (thisinstancepath == NULL)
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free(thisinstancepath);
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thisinstancepath = strdup(instancepath);
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}
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int formf_serval_instance_path(struct __sourceloc __whence, char *buf, size_t bufsiz, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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int ret = vformf_serval_instance_path(__whence, buf, bufsiz, fmt, ap);
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va_end(ap);
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return ret;
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}
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int vformf_serval_instance_path(struct __sourceloc __whence, char *buf, size_t bufsiz, const char *fmt, va_list ap)
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{
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strbuf b = strbuf_local(buf, bufsiz);
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strbuf_va_vprintf(b, fmt, ap);
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if (!strbuf_overrun(b) && strbuf_len(b) && buf[0] != '/') {
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strbuf_reset(b);
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strbuf_puts(b, serval_instancepath());
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strbuf_putc(b, '/');
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strbuf_va_vprintf(b, fmt, ap);
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}
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if (!strbuf_overrun(b))
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return 1;
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WHYF("instance path overflow (strlen %lu, sizeof buffer %lu): %s",
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(unsigned long)strbuf_count(b),
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(unsigned long)bufsiz,
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alloca_str_toprint(buf));
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return 0;
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}
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int create_serval_instance_dir() {
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return emkdirs(serval_instancepath(), 0700);
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}
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