summaryrefslogtreecommitdiffstats
path: root/libglusterfs/src/common-utils.c
diff options
context:
space:
mode:
authorVikas Gorur <vikas@zresearch.com>2009-02-18 17:36:07 +0530
committerVikas Gorur <vikas@zresearch.com>2009-02-18 17:36:07 +0530
commit77adf4cd648dce41f89469dd185deec6b6b53a0b (patch)
tree02e155a5753b398ee572b45793f889b538efab6b /libglusterfs/src/common-utils.c
parentf3b2e6580e5663292ee113c741343c8a43ee133f (diff)
Added all files
Diffstat (limited to 'libglusterfs/src/common-utils.c')
-rw-r--r--libglusterfs/src/common-utils.c1349
1 files changed, 1349 insertions, 0 deletions
diff --git a/libglusterfs/src/common-utils.c b/libglusterfs/src/common-utils.c
new file mode 100644
index 00000000000..616c7a8ce68
--- /dev/null
+++ b/libglusterfs/src/common-utils.c
@@ -0,0 +1,1349 @@
+/*
+ Copyright (c) 2006, 2007, 2008 Z RESEARCH, Inc. <http://www.zresearch.com>
+ This file is part of GlusterFS.
+
+ GlusterFS 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.
+
+ GlusterFS 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 _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#ifdef HAVE_BACKTRACE
+#include <execinfo.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <unistd.h>
+#include <time.h>
+#include <locale.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <signal.h>
+
+#include "logging.h"
+#include "common-utils.h"
+#include "revision.h"
+#include "glusterfs.h"
+#include "stack.h"
+
+typedef int32_t (*rw_op_t)(int32_t fd, char *buf, int32_t size);
+typedef int32_t (*rwv_op_t)(int32_t fd, const struct iovec *buf, int32_t size);
+static glusterfs_ctx_t *gf_global_ctx;
+
+
+struct dnscache6 {
+ struct addrinfo *first;
+ struct addrinfo *next;
+};
+
+int32_t
+gf_resolve_ip6 (const char *hostname,
+ uint16_t port,
+ int family,
+ void **dnscache,
+ struct addrinfo **addr_info)
+{
+ int32_t ret = 0;
+ struct addrinfo hints;
+ struct dnscache6 *cache = NULL;
+ char service[NI_MAXSERV], host[NI_MAXHOST];
+
+ if (!hostname) {
+ gf_log ("resolver", GF_LOG_WARNING, "hostname is NULL");
+ return -1;
+ }
+
+ if (!*dnscache) {
+ *dnscache = CALLOC (1, sizeof (struct dnscache6));
+ }
+
+ cache = *dnscache;
+ if (cache->first && !cache->next) {
+ freeaddrinfo(cache->first);
+ cache->first = cache->next = NULL;
+ gf_log ("resolver", GF_LOG_DEBUG,
+ "flushing DNS cache");
+ }
+
+ if (!cache->first) {
+ char *port_str = NULL;
+ gf_log ("resolver", GF_LOG_DEBUG,
+ "DNS cache not present, freshly probing hostname: %s",
+ hostname);
+
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_family = family;
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_flags = AI_ADDRCONFIG;
+
+ asprintf (&port_str, "%d", port);
+ if ((ret = getaddrinfo(hostname, port_str, &hints, &cache->first)) != 0) {
+ gf_log ("resolver", GF_LOG_ERROR,
+ "getaddrinfo failed (%s)", gai_strerror (ret));
+
+ free (*dnscache);
+ *dnscache = NULL;
+ free (port_str);
+ return -1;
+ }
+ free (port_str);
+
+ cache->next = cache->first;
+ }
+
+ if (cache->next) {
+ ret = getnameinfo((struct sockaddr *)cache->next->ai_addr,
+ cache->next->ai_addrlen,
+ host, sizeof (host),
+ service, sizeof (service),
+ NI_NUMERICHOST);
+ if (ret != 0) {
+ gf_log ("resolver",
+ GF_LOG_ERROR,
+ "getnameinfo failed (%s)", gai_strerror (ret));
+ goto err;
+ }
+
+ gf_log ("resolver", GF_LOG_DEBUG,
+ "returning ip-%s (port-%s) for hostname: %s and port: %d",
+ host, service, hostname, port);
+
+ *addr_info = cache->next;
+ }
+
+ cache->next = cache->next->ai_next;
+ if (cache->next) {
+ ret = getnameinfo((struct sockaddr *)cache->next->ai_addr,
+ cache->next->ai_addrlen,
+ host, sizeof (host),
+ service, sizeof (service),
+ NI_NUMERICHOST);
+ if (ret != 0) {
+ gf_log ("resolver",
+ GF_LOG_ERROR,
+ "getnameinfo failed (%s)", gai_strerror (ret));
+ goto err;
+ }
+
+ gf_log ("resolver", GF_LOG_DEBUG,
+ "next DNS query will return: ip-%s port-%s", host, service);
+ }
+
+ return 0;
+
+err:
+ freeaddrinfo (cache->first);
+ cache->first = cache->next = NULL;
+ free (cache);
+ *dnscache = NULL;
+ return -1;
+}
+
+char *gf_fop_list[GF_FOP_MAXVALUE];
+char *gf_mop_list[GF_MOP_MAXVALUE];
+char *gf_cbk_list[GF_CBK_MAXVALUE];
+
+void
+gf_global_variable_init()
+{
+ gf_fop_list[GF_FOP_STAT] = "STAT"; /* 0 */
+ gf_fop_list[GF_FOP_READLINK] = "READLINK"; /* 1 */
+ gf_fop_list[GF_FOP_MKNOD] = "MKNOD"; /* 2 */
+ gf_fop_list[GF_FOP_MKDIR] = "MKDIR";
+ gf_fop_list[GF_FOP_UNLINK] = "UNLINK";
+ gf_fop_list[GF_FOP_RMDIR] = "RMDIR"; /* 5 */
+ gf_fop_list[GF_FOP_SYMLINK] = "SYMLINK";
+ gf_fop_list[GF_FOP_RENAME] = "RENAME";
+ gf_fop_list[GF_FOP_LINK] = "LINK";
+ gf_fop_list[GF_FOP_CHMOD] = "CHMOD";
+ gf_fop_list[GF_FOP_CHOWN] = "CHOWN"; /* 10 */
+ gf_fop_list[GF_FOP_TRUNCATE] = "TRUNCATE";
+ gf_fop_list[GF_FOP_OPEN] = "OPEN";
+ gf_fop_list[GF_FOP_READ] = "READ";
+ gf_fop_list[GF_FOP_WRITE] = "WRITE";
+ gf_fop_list[GF_FOP_STATFS] = "STATFS"; /* 15 */
+ gf_fop_list[GF_FOP_FLUSH] = "FLUSH";
+ gf_fop_list[GF_FOP_FSYNC] = "FSYNC";
+ gf_fop_list[GF_FOP_SETXATTR] = "SETXATTR";
+ gf_fop_list[GF_FOP_GETXATTR] = "GETXATTR"; /* 20 */
+ gf_fop_list[GF_FOP_REMOVEXATTR] = "REMOVEXATTR";
+ gf_fop_list[GF_FOP_OPENDIR] = "OPENDIR";
+ gf_fop_list[GF_FOP_GETDENTS] = "GETDENTS";
+ gf_fop_list[GF_FOP_FSYNCDIR] = "FSYNCDIR"; /* 25 */
+ gf_fop_list[GF_FOP_ACCESS] = "ACCESS";
+ gf_fop_list[GF_FOP_CREATE] = "CREATE";
+ gf_fop_list[GF_FOP_FTRUNCATE] = "FTRUNCATE";
+ gf_fop_list[GF_FOP_FSTAT] = "FSTAT";
+ gf_fop_list[GF_FOP_LK] = "LK"; /* 30 */
+ gf_fop_list[GF_FOP_UTIMENS] = "UTIMENS";
+ gf_fop_list[GF_FOP_FCHMOD] = "FCHMOD";
+ gf_fop_list[GF_FOP_FCHOWN] = "FCHOWN";
+ gf_fop_list[GF_FOP_LOOKUP] = "LOOKUP";
+ gf_fop_list[GF_FOP_SETDENTS] = "SETDENTS"; /* 35 */
+ gf_fop_list[GF_FOP_READDIR] = "READDIR";
+ gf_fop_list[GF_FOP_INODELK] = "INODELK";
+ gf_fop_list[GF_FOP_FINODELK] = "FINODELK";
+ gf_fop_list[GF_FOP_ENTRYLK] = "ENTRYLK";
+ gf_fop_list[GF_FOP_FENTRYLK] = "FENTRYLK"; /* 40 */
+ gf_fop_list[GF_FOP_CHECKSUM] = "CHECKSUM"; /* 41 */
+ gf_fop_list[GF_FOP_XATTROP] = "XATTROP";
+
+ gf_mop_list[GF_MOP_SETVOLUME] = "SETVOLUME"; /* 0 */
+ gf_mop_list[GF_MOP_GETVOLUME] = "GETVOLUME"; /* 1 */
+ gf_mop_list[GF_MOP_STATS] = "STATS";
+ gf_mop_list[GF_MOP_SETSPEC] = "SETSPEC";
+ gf_mop_list[GF_MOP_GETSPEC] = "GETSPEC";
+
+ gf_cbk_list[GF_CBK_FORGET] = "FORGET";
+ gf_cbk_list[GF_CBK_RELEASE] = "RELEASE";
+ gf_cbk_list[GF_CBK_RELEASEDIR] = "RELEASEDIR";
+ /* Are there any more variables to be included? All global
+ variables initialization should go here */
+
+ return;
+}
+
+void
+set_global_ctx_ptr (glusterfs_ctx_t *ctx)
+{
+ gf_global_ctx = ctx;
+}
+
+glusterfs_ctx_t *
+get_global_ctx_ptr (void)
+{
+ return gf_global_ctx;
+}
+
+void
+gf_log_volume_file (FILE *specfp)
+{
+ extern FILE *gf_log_logfile;
+ int lcount = 0;
+ char data[GF_UNIT_KB];
+
+ fseek (specfp, 0L, SEEK_SET);
+
+ fprintf (gf_log_logfile, "Given volfile:\n");
+ fprintf (gf_log_logfile,
+ "+---------------------------------------"
+ "---------------------------------------+\n");
+ while (!feof (specfp)) {
+ if (fgets (data, GF_UNIT_KB, specfp) == NULL)
+ break;
+ lcount++;
+ fprintf (gf_log_logfile, "%3d: %s", lcount, data);
+ }
+ fprintf (gf_log_logfile,
+ "\n+---------------------------------------"
+ "---------------------------------------+\n");
+ fflush (gf_log_logfile);
+ fseek (specfp, 0L, SEEK_SET);
+}
+
+static void
+gf_dump_config_flags (int fd)
+{
+
+ write (fd, "configuration details:\n", 22);
+
+/* have argp */
+#ifdef HAVE_ARGP
+ write (fd, "argp 1\n", 7);
+#endif
+
+/* ifdef if found backtrace */
+#ifdef HAVE_BACKTRACE
+ write (fd, "backtrace 1\n", 12);
+#endif
+
+/* Berkeley-DB version has cursor->get() */
+#ifdef HAVE_BDB_CURSOR_GET
+ write (fd, "bdb->cursor->get 1\n", 19);
+#endif
+
+/* Define to 1 if you have the <db.h> header file. */
+#ifdef HAVE_DB_H
+ write (fd, "db.h 1\n", 7);
+#endif
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#ifdef HAVE_DLFCN_H
+ write (fd, "dlfcn 1\n", 8);
+#endif
+
+/* define if fdatasync exists */
+#ifdef HAVE_FDATASYNC
+ write (fd, "fdatasync 1\n", 12);
+#endif
+
+/* Define to 1 if you have the `pthread' library (-lpthread). */
+#ifdef HAVE_LIBPTHREAD
+ write (fd, "libpthread 1\n", 13);
+#endif
+
+/* define if llistxattr exists */
+#ifdef HAVE_LLISTXATTR
+ write (fd, "llistxattr 1\n", 13);
+#endif
+
+/* define if found setfsuid setfsgid */
+#ifdef HAVE_SET_FSID
+ write (fd, "setfsid 1\n", 10);
+#endif
+
+/* define if found spinlock */
+#ifdef HAVE_SPINLOCK
+ write (fd, "spinlock 1\n", 11);
+#endif
+
+/* Define to 1 if you have the <sys/epoll.h> header file. */
+#ifdef HAVE_SYS_EPOLL_H
+ write (fd, "epoll.h 1\n", 10);
+#endif
+
+/* Define to 1 if you have the <sys/extattr.h> header file. */
+#ifdef HAVE_SYS_EXTATTR_H
+ write (fd, "extattr.h 1\n", 12);
+#endif
+
+/* Define to 1 if you have the <sys/xattr.h> header file. */
+#ifdef HAVE_SYS_XATTR_H
+ write (fd, "xattr.h 1\n", 10);
+#endif
+
+/* define if found st_atim.tv_nsec */
+#ifdef HAVE_STRUCT_STAT_ST_ATIM_TV_NSEC
+ write (fd, "st_atim.tv_nsec 1\n", 18);
+#endif
+
+/* define if found st_atimespec.tv_nsec */
+#ifdef HAVE_STRUCT_STAT_ST_ATIMESPEC_TV_NSEC
+ write (fd, "st_atimespec.tv_nsec 1\n",23);
+#endif
+
+/* Define to the full name and version of this package. */
+#ifdef PACKAGE_STRING
+ {
+ char msg[128];
+ sprintf (msg, "package-string: %s\n", PACKAGE_STRING);
+ write (fd, msg, strlen (msg));
+ }
+#endif
+
+ return;
+}
+
+/* Obtain a backtrace and print it to stdout. */
+/* TODO: It looks like backtrace_symbols allocates memory,
+ it may be problem because mostly memory allocation/free causes 'sigsegv' */
+void
+gf_print_trace (int32_t signum)
+{
+ extern FILE *gf_log_logfile;
+ int fd = fileno (gf_log_logfile);
+ char msg[1024];
+
+
+ /* Pending frames, (if any), list them in order */
+ write (fd, "pending frames:\n", 16);
+ {
+ extern glusterfs_ctx_t *gf_global_ctx;
+ glusterfs_ctx_t *ctx = gf_global_ctx;
+ struct list_head *trav = ((call_pool_t *)ctx->pool)->all_frames.next;
+ while (trav != (&((call_pool_t *)ctx->pool)->all_frames)) {
+ call_frame_t *tmp = (call_frame_t *)(&((call_stack_t *)trav)->frames);
+ if ((tmp->root->type == GF_OP_TYPE_FOP_REQUEST) ||
+ (tmp->root->type == GF_OP_TYPE_FOP_REPLY))
+ sprintf (msg,"frame : type(%d) op(%s)\n",
+ tmp->root->type,
+ gf_fop_list[tmp->root->op]);
+ if ((tmp->root->type == GF_OP_TYPE_MOP_REQUEST) ||
+ (tmp->root->type == GF_OP_TYPE_MOP_REPLY))
+ sprintf (msg,"frame : type(%d) op(%s)\n",
+ tmp->root->type,
+ gf_mop_list[tmp->root->op]);
+ if ((tmp->root->type == GF_OP_TYPE_CBK_REQUEST) ||
+ (tmp->root->type == GF_OP_TYPE_CBK_REPLY))
+ sprintf (msg,"frame : type(%d) op(%s)\n",
+ tmp->root->type,
+ gf_cbk_list[tmp->root->op]);
+
+ write (fd, msg, strlen (msg));
+ trav = trav->next;
+ }
+ write (fd, "\n", 1);
+ }
+
+ sprintf (msg, "patchset: %s\n", GLUSTERFS_REPOSITORY_REVISION);
+ write (fd, msg, strlen (msg));
+
+ sprintf (msg, "signal received: %d\n", signum);
+ write (fd, msg, strlen (msg));
+
+ gf_dump_config_flags (fd);
+#if HAVE_BACKTRACE
+ /* Print 'backtrace' */
+ {
+ void *array[200];
+ size_t size;
+
+ size = backtrace (array, 200);
+ backtrace_symbols_fd (&array[1], size-1, fd);
+ sprintf (msg, "---------\n");
+ write (fd, msg, strlen (msg));
+ }
+#endif /* HAVE_BACKTRACE */
+
+ /* Send a signal to terminate the process */
+ signal (signum, SIG_DFL);
+ raise (signum);
+}
+
+void
+trap (void)
+{
+
+}
+
+char *
+gf_trim (char *string)
+{
+ register char *s, *t;
+
+ if (string == NULL)
+ {
+ return NULL;
+ }
+
+ for (s = string; isspace (*s); s++)
+ ;
+
+ if (*s == 0)
+ return s;
+
+ t = s + strlen (s) - 1;
+ while (t > s && isspace (*t))
+ t--;
+ *++t = '\0';
+
+ return s;
+}
+
+int
+gf_strsplit (const char *str, const char *delim,
+ char ***tokens, int *token_count)
+{
+ char *_running = NULL;
+ char *running = NULL;
+ char *token = NULL;
+ char **token_list = NULL;
+ int count = 0;
+ int i = 0;
+ int j = 0;
+
+ if (str == NULL || delim == NULL || tokens == NULL || token_count == NULL)
+ {
+ return -1;
+ }
+
+ if ((_running = strdup (str)) == NULL)
+ {
+ return -1;
+ }
+ running = _running;
+
+ while ((token = strsep (&running, delim)) != NULL)
+ {
+ if (token[0] != '\0')
+ count++;
+ }
+ free (_running);
+
+ if ((_running = strdup (str)) == NULL)
+ {
+ return -1;
+ }
+ running = _running;
+
+ if ((token_list = CALLOC (count, sizeof (char *))) == NULL)
+ {
+ free (_running);
+ return -1;
+ }
+
+ while ((token = strsep (&running, delim)) != NULL)
+ {
+ if (token[0] == '\0')
+ continue;
+
+ if ((token_list[i++] = strdup (token)) == NULL)
+ goto free_exit;
+ }
+
+ free (_running);
+
+ *tokens = token_list;
+ *token_count = count;
+ return 0;
+
+free_exit:
+ free (_running);
+ for (j = 0; j < i; j++)
+ {
+ free (token_list[j]);
+ }
+ free (token_list);
+ return -1;
+}
+
+int
+gf_volume_name_validate (const char *volume_name)
+{
+ const char *vname = NULL;
+
+ if (volume_name == NULL)
+ {
+ return -1;
+ }
+
+ if (!isalpha (volume_name[0]))
+ {
+ return 1;
+ }
+
+ for (vname = &volume_name[1]; *vname != '\0'; vname++)
+ {
+ if (!(isalnum (*vname) || *vname == '_'))
+ return 1;
+ }
+
+ return 0;
+}
+
+
+int
+gf_string2time (const char *str, uint32_t *n)
+{
+ unsigned long value = 0;
+ char *tail = NULL;
+ int old_errno = 0;
+ const char *s = NULL;
+
+ if (str == NULL || n == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ for (s = str; *s != '\0'; s++)
+ {
+ if (isspace (*s))
+ {
+ continue;
+ }
+ if (*s == '-')
+ {
+ return -1;
+ }
+ break;
+ }
+
+ old_errno = errno;
+ errno = 0;
+ value = strtol (str, &tail, 0);
+
+ if (errno == ERANGE || errno == EINVAL)
+ {
+ return -1;
+ }
+
+ if (errno == 0)
+ {
+ errno = old_errno;
+ }
+
+ if (!((tail[0] == '\0') ||
+ ((tail[0] == 's') && (tail[1] == '\0')) ||
+ ((tail[0] == 's') && (tail[1] == 'e') && (tail[2] == 'c') && (tail[3] == '\0'))))
+ {
+ return -1;
+ }
+
+ *n = value;
+
+ return 0;
+}
+
+
+int
+gf_string2percent (const char *str, uint32_t *n)
+{
+ unsigned long value = 0;
+ char *tail = NULL;
+ int old_errno = 0;
+ const char *s = NULL;
+
+ if (str == NULL || n == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ for (s = str; *s != '\0'; s++)
+ {
+ if (isspace (*s))
+ {
+ continue;
+ }
+ if (*s == '-')
+ {
+ return -1;
+ }
+ break;
+ }
+
+ old_errno = errno;
+ errno = 0;
+ value = strtol (str, &tail, 0);
+
+ if (errno == ERANGE || errno == EINVAL)
+ {
+ return -1;
+ }
+
+ if (errno == 0)
+ {
+ errno = old_errno;
+ }
+
+ if (!((tail[0] == '\0') ||
+ ((tail[0] == '%') && (tail[1] == '\0'))))
+ {
+ return -1;
+ }
+
+ *n = value;
+
+ return 0;
+}
+
+
+static int
+_gf_string2long (const char *str, long *n, int base)
+{
+ long value = 0;
+ char *tail = NULL;
+ int old_errno = 0;
+
+ if (str == NULL || n == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ old_errno = errno;
+ errno = 0;
+ value = strtol (str, &tail, base);
+
+ if (errno == ERANGE || errno == EINVAL)
+ {
+ return -1;
+ }
+
+ if (errno == 0)
+ {
+ errno = old_errno;
+ }
+
+ if (tail[0] != '\0')
+ {
+ /* bala: invalid integer format */
+ return -1;
+ }
+
+ *n = value;
+
+ return 0;
+}
+
+static int
+_gf_string2ulong (const char *str, unsigned long *n, int base)
+{
+ unsigned long value = 0;
+ char *tail = NULL;
+ int old_errno = 0;
+ const char *s = NULL;
+
+ if (str == NULL || n == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ for (s = str; *s != '\0'; s++)
+ {
+ if (isspace (*s))
+ {
+ continue;
+ }
+ if (*s == '-')
+ {
+ /* bala: we do not support suffixed (-) sign and
+ invalid integer format */
+ return -1;
+ }
+ break;
+ }
+
+ old_errno = errno;
+ errno = 0;
+ value = strtoul (str, &tail, base);
+
+ if (errno == ERANGE || errno == EINVAL)
+ {
+ return -1;
+ }
+
+ if (errno == 0)
+ {
+ errno = old_errno;
+ }
+
+ if (tail[0] != '\0')
+ {
+ /* bala: invalid integer format */
+ return -1;
+ }
+
+ *n = value;
+
+ return 0;
+}
+
+static int
+_gf_string2uint (const char *str, unsigned int *n, int base)
+{
+ unsigned long value = 0;
+ char *tail = NULL;
+ int old_errno = 0;
+ const char *s = NULL;
+
+ if (str == NULL || n == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ for (s = str; *s != '\0'; s++)
+ {
+ if (isspace (*s))
+ {
+ continue;
+ }
+ if (*s == '-')
+ {
+ /* bala: we do not support suffixed (-) sign and
+ invalid integer format */
+ return -1;
+ }
+ break;
+ }
+
+ old_errno = errno;
+ errno = 0;
+ value = strtoul (str, &tail, base);
+
+ if (errno == ERANGE || errno == EINVAL)
+ {
+ return -1;
+ }
+
+ if (errno == 0)
+ {
+ errno = old_errno;
+ }
+
+ if (tail[0] != '\0')
+ {
+ /* bala: invalid integer format */
+ return -1;
+ }
+
+ *n = (unsigned int)value;
+
+ return 0;
+}
+
+static int
+_gf_string2longlong (const char *str, long long *n, int base)
+{
+ long long value = 0;
+ char *tail = NULL;
+ int old_errno = 0;
+
+ if (str == NULL || n == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ old_errno = errno;
+ errno = 0;
+ value = strtoll (str, &tail, base);
+
+ if (errno == ERANGE || errno == EINVAL)
+ {
+ return -1;
+ }
+
+ if (errno == 0)
+ {
+ errno = old_errno;
+ }
+
+ if (tail[0] != '\0')
+ {
+ /* bala: invalid integer format */
+ return -1;
+ }
+
+ *n = value;
+
+ return 0;
+}
+
+static int
+_gf_string2ulonglong (const char *str, unsigned long long *n, int base)
+{
+ unsigned long long value = 0;
+ char *tail = NULL;
+ int old_errno = 0;
+ const char *s = NULL;
+
+ if (str == NULL || n == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ for (s = str; *s != '\0'; s++)
+ {
+ if (isspace (*s))
+ {
+ continue;
+ }
+ if (*s == '-')
+ {
+ /* bala: we do not support suffixed (-) sign and
+ invalid integer format */
+ return -1;
+ }
+ break;
+ }
+
+ old_errno = errno;
+ errno = 0;
+ value = strtoull (str, &tail, base);
+
+ if (errno == ERANGE || errno == EINVAL)
+ {
+ return -1;
+ }
+
+ if (errno == 0)
+ {
+ errno = old_errno;
+ }
+
+ if (tail[0] != '\0')
+ {
+ /* bala: invalid integer format */
+ return -1;
+ }
+
+ *n = value;
+
+ return 0;
+}
+
+int
+gf_string2long (const char *str, long *n)
+{
+ return _gf_string2long (str, n, 0);
+}
+
+int
+gf_string2ulong (const char *str, unsigned long *n)
+{
+ return _gf_string2ulong (str, n, 0);
+}
+
+int
+gf_string2int (const char *str, int *n)
+{
+ return _gf_string2long (str, (long *) n, 0);
+}
+
+int
+gf_string2uint (const char *str, unsigned int *n)
+{
+ return _gf_string2uint (str, n, 0);
+}
+
+int
+gf_string2longlong (const char *str, long long *n)
+{
+ return _gf_string2longlong (str, n, 0);
+}
+
+int
+gf_string2ulonglong (const char *str, unsigned long long *n)
+{
+ return _gf_string2ulonglong (str, n, 0);
+}
+
+int
+gf_string2int8 (const char *str, int8_t *n)
+{
+ long l = 0L;
+ int rv = 0;
+
+ rv = _gf_string2long (str, &l, 0);
+ if (rv != 0)
+ return rv;
+
+ if (l >= INT8_MIN && l <= INT8_MAX)
+ {
+ *n = (int8_t) l;
+ return 0;
+ }
+
+ errno = ERANGE;
+ return -1;
+}
+
+int
+gf_string2int16 (const char *str, int16_t *n)
+{
+ long l = 0L;
+ int rv = 0;
+
+ rv = _gf_string2long (str, &l, 0);
+ if (rv != 0)
+ return rv;
+
+ if (l >= INT16_MIN && l <= INT16_MAX)
+ {
+ *n = (int16_t) l;
+ return 0;
+ }
+
+ errno = ERANGE;
+ return -1;
+}
+
+int
+gf_string2int32 (const char *str, int32_t *n)
+{
+ long l = 0L;
+ int rv = 0;
+
+ rv = _gf_string2long (str, &l, 0);
+ if (rv != 0)
+ return rv;
+
+ if (l >= INT32_MIN && l <= INT32_MAX)
+ {
+ *n = (int32_t) l;
+ return 0;
+ }
+
+ errno = ERANGE;
+ return -1;
+}
+
+int
+gf_string2int64 (const char *str, int64_t *n)
+{
+ long long l = 0LL;
+ int rv = 0;
+
+ rv = _gf_string2longlong (str, &l, 0);
+ if (rv != 0)
+ return rv;
+
+ if (l >= INT64_MIN && l <= INT64_MAX)
+ {
+ *n = (int64_t) l;
+ return 0;
+ }
+
+ errno = ERANGE;
+ return -1;
+}
+
+int
+gf_string2uint8 (const char *str, uint8_t *n)
+{
+ unsigned long l = 0L;
+ int rv = 0;
+
+ rv = _gf_string2ulong (str, &l, 0);
+ if (rv != 0)
+ return rv;
+
+ if (l >= 0 && l <= UINT8_MAX)
+ {
+ *n = (uint8_t) l;
+ return 0;
+ }
+
+ errno = ERANGE;
+ return -1;
+}
+
+int
+gf_string2uint16 (const char *str, uint16_t *n)
+{
+ unsigned long l = 0L;
+ int rv = 0;
+
+ rv = _gf_string2ulong (str, &l, 0);
+ if (rv != 0)
+ return rv;
+
+ if (l >= 0 && l <= UINT16_MAX)
+ {
+ *n = (uint16_t) l;
+ return 0;
+ }
+
+ errno = ERANGE;
+ return -1;
+}
+
+int
+gf_string2uint32 (const char *str, uint32_t *n)
+{
+ unsigned long l = 0L;
+ int rv = 0;
+
+ rv = _gf_string2ulong (str, &l, 0);
+ if (rv != 0)
+ return rv;
+
+ if (l >= 0 && l <= UINT32_MAX)
+ {
+ *n = (uint32_t) l;
+ return 0;
+ }
+
+ errno = ERANGE;
+ return -1;
+}
+
+int
+gf_string2uint64 (const char *str, uint64_t *n)
+{
+ unsigned long long l = 0ULL;
+ int rv = 0;
+
+ rv = _gf_string2ulonglong (str, &l, 0);
+ if (rv != 0)
+ return rv;
+
+ if (l >= 0 && l <= UINT64_MAX)
+ {
+ *n = (uint64_t) l;
+ return 0;
+ }
+
+ errno = ERANGE;
+ return -1;
+}
+
+int
+gf_string2ulong_base10 (const char *str, unsigned long *n)
+{
+ return _gf_string2ulong (str, n, 10);
+}
+
+int
+gf_string2uint_base10 (const char *str, unsigned int *n)
+{
+ return _gf_string2uint (str, n, 10);
+}
+
+int
+gf_string2uint8_base10 (const char *str, uint8_t *n)
+{
+ unsigned long l = 0L;
+ int rv = 0;
+
+ rv = _gf_string2ulong (str, &l, 10);
+ if (rv != 0)
+ return rv;
+
+ if (l >= 0 && l <= UINT8_MAX)
+ {
+ *n = (uint8_t) l;
+ return 0;
+ }
+
+ errno = ERANGE;
+ return -1;
+}
+
+int
+gf_string2uint16_base10 (const char *str, uint16_t *n)
+{
+ unsigned long l = 0L;
+ int rv = 0;
+
+ rv = _gf_string2ulong (str, &l, 10);
+ if (rv != 0)
+ return rv;
+
+ if (l >= 0 && l <= UINT16_MAX)
+ {
+ *n = (uint16_t) l;
+ return 0;
+ }
+
+ errno = ERANGE;
+ return -1;
+}
+
+int
+gf_string2uint32_base10 (const char *str, uint32_t *n)
+{
+ unsigned long l = 0L;
+ int rv = 0;
+
+ rv = _gf_string2ulong (str, &l, 10);
+ if (rv != 0)
+ return rv;
+
+ if (l >= 0 && l <= UINT32_MAX)
+ {
+ *n = (uint32_t) l;
+ return 0;
+ }
+
+ errno = ERANGE;
+ return -1;
+}
+
+int
+gf_string2uint64_base10 (const char *str, uint64_t *n)
+{
+ unsigned long long l = 0ULL;
+ int rv = 0;
+
+ rv = _gf_string2ulonglong (str, &l, 10);
+ if (rv != 0)
+ return rv;
+
+ if (l >= 0 && l <= UINT64_MAX)
+ {
+ *n = (uint64_t) l;
+ return 0;
+ }
+
+ errno = ERANGE;
+ return -1;
+}
+
+int
+gf_string2bytesize (const char *str, uint64_t *n)
+{
+ uint64_t value = 0ULL;
+ char *tail = NULL;
+ int old_errno = 0;
+ const char *s = NULL;
+
+ if (str == NULL || n == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ for (s = str; *s != '\0'; s++)
+ {
+ if (isspace (*s))
+ {
+ continue;
+ }
+ if (*s == '-')
+ {
+ /* bala: we do not support suffixed (-) sign and
+ invalid integer format */
+ return -1;
+ }
+ break;
+ }
+
+ old_errno = errno;
+ errno = 0;
+ value = strtoull (str, &tail, 10);
+
+ if (errno == ERANGE || errno == EINVAL)
+ {
+ return -1;
+ }
+
+ if (errno == 0)
+ {
+ errno = old_errno;
+ }
+
+ if (tail[0] != '\0')
+ {
+ if (strcasecmp (tail, GF_UNIT_KB_STRING) == 0)
+ {
+ value *= GF_UNIT_KB;
+ }
+ else if (strcasecmp (tail, GF_UNIT_MB_STRING) == 0)
+ {
+ value *= GF_UNIT_MB;
+ }
+ else if (strcasecmp (tail, GF_UNIT_GB_STRING) == 0)
+ {
+ value *= GF_UNIT_GB;
+ }
+ else if (strcasecmp (tail, GF_UNIT_TB_STRING) == 0)
+ {
+ value *= GF_UNIT_TB;
+ }
+ else if (strcasecmp (tail, GF_UNIT_PB_STRING) == 0)
+ {
+ value *= GF_UNIT_PB;
+ }
+ else
+ {
+ /* bala: invalid integer format */
+ return -1;
+ }
+ }
+
+ *n = value;
+
+ return 0;
+}
+
+int64_t
+gf_str_to_long_long (const char *number)
+{
+ int64_t unit = 1;
+ int64_t ret = 0;
+ char *endptr = NULL ;
+ if (!number)
+ return 0;
+
+ ret = strtoll (number, &endptr, 0);
+
+ if (endptr) {
+ switch (*endptr) {
+ case 'G':
+ case 'g':
+ if ((* (endptr + 1) == 'B') ||(* (endptr + 1) == 'b'))
+ unit = 1024 * 1024 * 1024;
+ break;
+ case 'M':
+ case 'm':
+ if ((* (endptr + 1) == 'B') ||(* (endptr + 1) == 'b'))
+ unit = 1024 * 1024;
+ break;
+ case 'K':
+ case 'k':
+ if ((* (endptr + 1) == 'B') ||(* (endptr + 1) == 'b'))
+ unit = 1024;
+ break;
+ case '%':
+ unit = 1;
+ break;
+ default:
+ unit = 1;
+ break;
+ }
+ }
+ return ret * unit;
+}
+
+int
+gf_string2boolean (const char *str, gf_boolean_t *b)
+{
+ if (str == NULL) {
+ return -1;
+ }
+
+ if ((strcasecmp (str, "1") == 0) ||
+ (strcasecmp (str, "on") == 0) ||
+ (strcasecmp (str, "yes") == 0) ||
+ (strcasecmp (str, "true") == 0) ||
+ (strcasecmp (str, "enable") == 0)) {
+ *b = _gf_true;
+ return 0;
+ }
+
+ if ((strcasecmp (str, "0") == 0) ||
+ (strcasecmp (str, "off") == 0) ||
+ (strcasecmp (str, "no") == 0) ||
+ (strcasecmp (str, "false") == 0) ||
+ (strcasecmp (str, "disable") == 0)) {
+ *b = _gf_false;
+ return 0;
+ }
+
+ return -1;
+}
+
+
+int
+gf_lockfd (int fd)
+{
+ struct flock fl;
+
+ fl.l_type = F_WRLCK;
+ fl.l_whence = SEEK_SET;
+ fl.l_start = 0;
+ fl.l_len = 0;
+
+ return fcntl (fd, F_SETLK, &fl);
+}
+
+
+int
+gf_unlockfd (int fd)
+{
+ struct flock fl;
+
+ fl.l_type = F_UNLCK;
+ fl.l_whence = SEEK_SET;
+ fl.l_start = 0;
+ fl.l_len = 0;
+
+ return fcntl (fd, F_SETLK, &fl);
+}
+