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authorStephen Gallagher <sgallagh@redhat.com>2009-09-10 15:56:52 -0400
committerSimo Sorce <ssorce@redhat.com>2009-09-10 17:28:35 -0400
commit0ec9546099dc0fc9685188cbe12175f7bfd9a47c (patch)
tree5fdee74d1e1eb0601d2163933edf20d65db37ece /server/util
parent514dcddae17141f286f70228ebce885256373be8 (diff)
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Add strtoint32 and strtouint32 convenience functions
Diffstat (limited to 'server/util')
-rw-r--r--server/util/strtonum.c65
-rw-r--r--server/util/strtonum.h32
2 files changed, 97 insertions, 0 deletions
diff --git a/server/util/strtonum.c b/server/util/strtonum.c
new file mode 100644
index 00000000..744e0f71
--- /dev/null
+++ b/server/util/strtonum.c
@@ -0,0 +1,65 @@
+/*
+ SSSD
+
+ SSSD Utility functions
+
+ Copyright (C) Stephen Gallagher <sgallagh@redhat.com> 2009
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <errno.h>
+#include "config.h"
+#include "util/util.h"
+#include "util/strtonum.h"
+
+/* strtoint32 */
+int32_t strtoint32(const char *nptr, char **endptr, int base)
+{
+ long long ret = 0;
+
+ errno = 0;
+ ret = strtoll(nptr, endptr, base);
+
+ if (ret > INT32_MAX) {
+ errno = ERANGE;
+ return INT32_MAX;
+ }
+ else if (ret < INT32_MIN) {
+ errno = ERANGE;
+ return INT32_MIN;
+ }
+
+ /* If errno was set by strtoll, we'll pass it back as-is */
+ return (int32_t)ret;
+}
+
+
+/* strtouint32 */
+uint32_t strtouint32(const char *nptr, char **endptr, int base)
+{
+ long long ret = 0;
+ errno = 0;
+ ret = strtoull(nptr, endptr, base);
+
+ if (ret > UINT32_MAX) {
+ errno = ERANGE;
+ return UINT32_MAX;
+ }
+
+ /* If errno was set by strtoll, we'll pass it back as-is */
+ return (uint32_t)ret;
+}
diff --git a/server/util/strtonum.h b/server/util/strtonum.h
new file mode 100644
index 00000000..45095962
--- /dev/null
+++ b/server/util/strtonum.h
@@ -0,0 +1,32 @@
+/*
+ SSSD
+
+ SSSD Utility functions
+
+ Copyright (C) Stephen Gallagher 2009
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _STRTONUM_H_
+#define _STRTONUM_H_
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <stdint.h>
+
+int32_t strtoint32(const char *nptr, char **endptr, int base);
+uint32_t strtouint32(const char *nptr, char **endptr, int base);
+
+#endif /* _STRTONUM_H_ */