thirdparty/util-linux
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lib/path: add ul_path_get_abspath()

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Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
Karel Zak 2018-05-17 13:58:30 +02:00
parent a6f0da166e
commit e74e5401e1
2 changed files with 36 additions and 1 deletions
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34
lib/path.c
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@ -176,7 +176,6 @@ static const char *get_absdir(struct path_cxt *pc)
return pc->path_buffer;
}
int ul_path_get_dirfd(struct path_cxt *pc)
{
assert(pc);
@ -209,6 +208,39 @@ static const char *ul_path_mkpath(struct path_cxt *pc, const char *path, va_list
return pc->path_buffer;
}
char *ul_path_get_abspath(struct path_cxt *pc, char *buf, size_t bufsz, const char *path, ...)
{
if (path) {
int rc;
va_list ap;
const char *tail = NULL;
va_start(ap, path);
tail = ul_path_mkpath(pc, path, ap);
va_end(ap);
rc = snprintf(buf, bufsz, "%s/%s/%s",
pc->prefix ? pc->prefix : "",
pc->dir_path,
tail);
if ((size_t)rc >= bufsz) {
errno = ENAMETOOLONG;
return NULL;
}
} else {
const char *tmp = get_absdir(pc);
if (!tmp)
return NULL;
strncpy(buf, tmp, bufsz);
buf[bufsz - 1] = '\0';
}
return buf;
}
int ul_path_access(struct path_cxt *pc, int mode, const char *path)
{
int dir, rc;