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-rw-r--r--lib/plugins/stonith/external.c868
1 files changed, 868 insertions, 0 deletions
diff --git a/lib/plugins/stonith/external.c b/lib/plugins/stonith/external.c
new file mode 100644
index 0000000..da03665
--- /dev/null
+++ b/lib/plugins/stonith/external.c
@@ -0,0 +1,868 @@
+/*
+ * Stonith module for EXTERNAL Stonith device
+ *
+ * Copyright (c) 2001 SuSE Linux AG
+ * Portions Copyright (c) 2004, tummy.com, ltd.
+ *
+ * Based on ssh.c, Authors: Joachim Gleissner <jg@suse.de>,
+ * Lars Marowsky-Bree <lmb@suse.de>
+ * Modified for external.c: Scott Kleihege <scott@tummy.com>
+ * Reviewed, tested, and config parsing: Sean Reifschneider <jafo@tummy.com>
+ * And overhauled by Lars Marowsky-Bree <lmb@suse.de>, so the circle
+ * closes...
+ * Mangled by Zhaokai <zhaokai@cn.ibm.com>, IBM, 2005
+ * Changed to allow full-featured external plugins by Dave Blaschke
+ * <debltc@us.ibm.com>
+ *
+ * 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; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * 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 <lha_internal.h>
+
+#include <dirent.h>
+
+#include "stonith_plugin_common.h"
+
+#define PIL_PLUGIN external
+#define PIL_PLUGIN_S "external"
+#define PIL_PLUGINLICENSE LICENSE_LGPL
+#define PIL_PLUGINLICENSEURL URL_LGPL
+
+#include <pils/plugin.h>
+
+static StonithPlugin * external_new(const char *);
+static void external_destroy(StonithPlugin *);
+static int external_set_config(StonithPlugin *, StonithNVpair *);
+static const char * const * external_get_confignames(StonithPlugin *);
+static const char * external_getinfo(StonithPlugin * s, int InfoType);
+static int external_status(StonithPlugin * );
+static int external_reset_req(StonithPlugin * s, int request, const char * host);
+static char ** external_hostlist(StonithPlugin *);
+
+static struct stonith_ops externalOps ={
+ external_new, /* Create new STONITH object */
+ external_destroy, /* Destroy STONITH object */
+ external_getinfo, /* Return STONITH info string */
+ external_get_confignames, /* Return STONITH info string */
+ external_set_config, /* Get configuration from NVpairs */
+ external_status, /* Return STONITH device status */
+ external_reset_req, /* Request a reset */
+ external_hostlist, /* Return list of supported hosts */
+};
+
+PIL_PLUGIN_BOILERPLATE2("1.0", Debug)
+static const PILPluginImports* PluginImports;
+static PILPlugin* OurPlugin;
+static PILInterface* OurInterface;
+static StonithImports* OurImports;
+static void* interfprivate;
+
+PIL_rc
+PIL_PLUGIN_INIT(PILPlugin*us, const PILPluginImports* imports);
+
+PIL_rc
+PIL_PLUGIN_INIT(PILPlugin*us, const PILPluginImports* imports)
+{
+ /* Force the compiler to do a little type checking */
+ (void)(PILPluginInitFun)PIL_PLUGIN_INIT;
+
+ PluginImports = imports;
+ OurPlugin = us;
+
+ /* Register ourself as a plugin */
+ imports->register_plugin(us, &OurPIExports);
+
+ /* Register our interface implementation */
+ return imports->register_interface(us, PIL_PLUGINTYPE_S
+ , PIL_PLUGIN_S
+ , &externalOps
+ , NULL /*close */
+ , &OurInterface
+ , (void*)&OurImports
+ , &interfprivate);
+}
+
+/*
+ * EXTERNAL STONITH device
+ */
+
+struct pluginDevice {
+ StonithPlugin sp;
+ const char * pluginid;
+ GHashTable * cmd_opts;
+ char * subplugin;
+ char ** confignames;
+ char * outputbuf;
+};
+
+static const char * pluginid = "ExternalDevice-Stonith";
+static const char * NOTpluginID = "External device has been destroyed";
+
+/* Prototypes */
+
+/* Run the command with op and return the exit status + the output
+ * (NULL -> discard output) */
+static int external_run_cmd(struct pluginDevice *sd, const char *op,
+ char **output);
+/* Just free up the configuration and the memory, if any */
+static void external_unconfig(struct pluginDevice *sd);
+
+static int
+external_status(StonithPlugin *s)
+{
+ struct pluginDevice * sd;
+ const char * op = "status";
+ int rc;
+
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: called.", __FUNCTION__);
+ }
+
+ ERRIFWRONGDEV(s,S_OOPS);
+
+ sd = (struct pluginDevice*) s;
+ if (sd->subplugin == NULL) {
+ LOG(PIL_CRIT, "%s: invoked without subplugin", __FUNCTION__);
+ return(S_OOPS);
+ }
+
+ rc = external_run_cmd(sd, op, NULL);
+ if (rc != 0) {
+ LOG(PIL_WARN, "%s: '%s %s' failed with rc %d",
+ __FUNCTION__, sd->subplugin, op, rc);
+ }
+ else {
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: running '%s %s' returned %d",
+ __FUNCTION__, sd->subplugin, op, rc);
+ }
+ }
+ return rc;
+}
+
+static int
+get_num_tokens(char *str)
+{
+ int namecount = 0;
+
+ while (*str != EOS) {
+ str += strspn(str, WHITESPACE);
+ if (*str == EOS)
+ break;
+ str += strcspn(str, WHITESPACE);
+ namecount++;
+ }
+ return namecount;
+}
+
+static char **
+external_hostlist(StonithPlugin *s)
+{
+ struct pluginDevice* sd;
+ const char * op = "gethosts";
+ int rc, i, namecount;
+ char ** ret;
+ char * output = NULL;
+ char * tmp;
+
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: called.", __FUNCTION__);
+ }
+
+ ERRIFNOTCONFIGED(s,NULL);
+
+ sd = (struct pluginDevice*) s;
+ if (sd->subplugin == NULL) {
+ LOG(PIL_CRIT, "%s: invoked without subplugin", __FUNCTION__);
+ return(NULL);
+ }
+
+ rc = external_run_cmd(sd, op, &output);
+ if (rc != 0) {
+ LOG(PIL_CRIT, "%s: '%s %s' failed with rc %d",
+ __FUNCTION__, sd->subplugin, op, rc);
+ if (output) {
+ LOG(PIL_CRIT, "plugin output: %s", output);
+ FREE(output);
+ }
+ return NULL;
+ }
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: running '%s %s' returned %d",
+ __FUNCTION__, sd->subplugin, op, rc);
+ }
+
+ if (!output) {
+ LOG(PIL_CRIT, "%s: '%s %s' returned an empty hostlist",
+ __FUNCTION__, sd->subplugin, op);
+ return NULL;
+ }
+
+ namecount = get_num_tokens(output);
+ ret = MALLOC((namecount+1)*sizeof(char *));
+ if (!ret) {
+ LOG(PIL_CRIT, "%s: out of memory", __FUNCTION__);
+ FREE(output);
+ return NULL;
+ }
+ memset(ret, 0, (namecount+1)*sizeof(char *));
+
+ /* White-space split the output here */
+ i = 0;
+ tmp = strtok(output, WHITESPACE);
+ while (tmp != NULL) {
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: %s host %s",
+ __FUNCTION__, sd->subplugin, tmp);
+ }
+ ret[i] = STRDUP(tmp);
+ if (!ret[i]) {
+ LOG(PIL_CRIT, "%s: out of memory", __FUNCTION__);
+ FREE(output);
+ stonith_free_hostlist(ret);
+ return NULL;
+ }
+ i++;
+ tmp = strtok(NULL, WHITESPACE);
+ }
+
+ FREE(output);
+
+ if (i == 0) {
+ LOG(PIL_CRIT, "%s: '%s %s' returned an empty hostlist",
+ __FUNCTION__, sd->subplugin, op);
+ stonith_free_hostlist(ret);
+ ret = NULL;
+ }
+
+ return(ret);
+}
+
+static int
+external_reset_req(StonithPlugin * s, int request, const char * host)
+{
+ struct pluginDevice * sd;
+ const char * op;
+ int rc;
+ char * args1and2;
+ int argslen;
+
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: called.", __FUNCTION__);
+ }
+
+ ERRIFNOTCONFIGED(s,S_OOPS);
+
+ if (Debug) {
+ LOG(PIL_DEBUG, "Host external-reset initiating on %s", host);
+ }
+
+ sd = (struct pluginDevice*) s;
+ if (sd->subplugin == NULL) {
+ LOG(PIL_CRIT, "%s: invoked without subplugin", __FUNCTION__);
+ return(S_OOPS);
+ }
+
+ switch (request) {
+ case ST_GENERIC_RESET:
+ op = "reset";
+ break;
+
+ case ST_POWEROFF:
+ op = "off";
+ break;
+
+ case ST_POWERON:
+ op = "on";
+ break;
+
+ default:
+ LOG(PIL_CRIT, "%s: Unknown stonith request %d",
+ __FUNCTION__, request);
+ return S_OOPS;
+ break;
+ }
+
+ argslen = strlen(op) + strlen(host) + 2 /* 1 for blank, 1 for EOS */;
+ args1and2 = (char *)MALLOC(argslen);
+ if (args1and2 == NULL) {
+ LOG(PIL_CRIT, "%s: out of memory!", __FUNCTION__);
+ return S_OOPS;
+ }
+ rc = snprintf(args1and2, argslen, "%s %s", op, host);
+ if (rc <= 0 || rc >= argslen) {
+ FREE(args1and2);
+ return S_OOPS;
+ }
+
+ rc = external_run_cmd(sd, args1and2, NULL);
+ FREE(args1and2);
+ if (rc != 0) {
+ LOG(PIL_CRIT, "%s: '%s %s' for host %s failed with rc %d",
+ __FUNCTION__, sd->subplugin, op, host, rc);
+ return S_RESETFAIL;
+ }
+ else {
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: running '%s %s' returned %d",
+ __FUNCTION__, sd->subplugin, op, rc);
+ }
+ return S_OK;
+ }
+
+}
+
+static int
+external_parse_config_info(struct pluginDevice* sd, StonithNVpair * info)
+{
+ char * key;
+ char * value;
+ StonithNVpair * nv;
+
+ sd->cmd_opts = g_hash_table_new(g_str_hash, g_str_equal);
+
+ /* TODO: Maybe treat "" as delimeters too so
+ * whitespace can be passed to the plugins... */
+ for (nv = info; nv->s_name; nv++) {
+ if (!nv->s_name || !nv->s_value) {
+ continue;
+ }
+
+ key = STRDUP(nv->s_name);
+ if (!key) {
+ goto err_mem;
+ }
+ value = STRDUP(nv->s_value);
+ if (!value) {
+ FREE(key);
+ goto err_mem;
+ }
+ g_hash_table_insert(sd->cmd_opts, key, value);
+ }
+
+ return(S_OK);
+
+err_mem:
+ LOG(PIL_CRIT, "%s: out of memory!", __FUNCTION__);
+ external_unconfig(sd);
+
+ return(S_OOPS);
+}
+
+static gboolean
+let_remove_eachitem(gpointer key, gpointer value, gpointer user_data)
+{
+ if (key) {
+ FREE(key);
+ }
+ if (value) {
+ FREE(value);
+ }
+ return TRUE;
+}
+
+static void
+external_unconfig(struct pluginDevice *sd) {
+ if (sd->cmd_opts) {
+ g_hash_table_foreach_remove(sd->cmd_opts,
+ let_remove_eachitem, NULL);
+ g_hash_table_destroy(sd->cmd_opts);
+ sd->cmd_opts = NULL;
+ }
+}
+
+/*
+ * Parse the information in the given string
+ * and stash it away...
+ */
+static int
+external_set_config(StonithPlugin* s, StonithNVpair *list)
+{
+ struct pluginDevice * sd;
+ char ** p;
+
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: called.", __FUNCTION__);
+ }
+
+ ERRIFWRONGDEV(s,S_OOPS);
+
+ /* make sure that command has not already been set */
+ if (s->isconfigured) {
+ return(S_OOPS);
+ }
+
+ sd = (struct pluginDevice*) s;
+ if (sd->subplugin == NULL) {
+ LOG(PIL_CRIT, "%s: invoked without subplugin", __FUNCTION__);
+ return(S_OOPS);
+ }
+
+ if (sd->confignames == NULL) {
+ /* specified by name=value pairs, check required parms */
+ if (external_get_confignames(s) == NULL) {
+ return(S_OOPS);
+ }
+
+ for (p = sd->confignames; *p; p++) {
+ if (OurImports->GetValue(list, *p) == NULL) {
+ LOG(PIL_DEBUG, "Cannot get parameter %s from "
+ "StonithNVpair", *p);
+ }
+ }
+ }
+
+ return external_parse_config_info(sd, list);
+}
+
+
+/* Only interested in regular files that are also executable */
+static int
+exec_select(const struct dirent *dire)
+{
+ struct stat statf;
+ char filename[FILENAME_MAX];
+ int rc;
+
+ rc = snprintf(filename, FILENAME_MAX, "%s/%s",
+ STONITH_EXT_PLUGINDIR, dire->d_name);
+ if (rc <= 0 || rc >= FILENAME_MAX) {
+ return 0;
+ }
+
+ if ((stat(filename, &statf) == 0) &&
+ (S_ISREG(statf.st_mode)) &&
+ (statf.st_mode & (S_IXUSR|S_IXGRP|S_IXOTH))) {
+ if (statf.st_mode & (S_IWGRP|S_IWOTH)) {
+ LOG(PIL_WARN, "Executable file %s ignored "
+ "(writable by group/others)", filename);
+ return 0;
+ }else{
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * Return STONITH config vars
+ */
+static const char * const *
+external_get_confignames(StonithPlugin* p)
+{
+ struct pluginDevice * sd;
+ const char * op = "getconfignames";
+ int i, rc;
+
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: called.", __FUNCTION__);
+ }
+
+ sd = (struct pluginDevice *)p;
+
+ if (sd->subplugin != NULL) {
+ /* return list of subplugin's required parameters */
+ char *output = NULL, *pch;
+ int namecount;
+
+ rc = external_run_cmd(sd, op, &output);
+ if (rc != 0) {
+ LOG(PIL_CRIT, "%s: '%s %s' failed with rc %d",
+ __FUNCTION__, sd->subplugin, op, rc);
+ if (output) {
+ LOG(PIL_CRIT, "plugin output: %s", output);
+ FREE(output);
+ }
+ return NULL;
+ }
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: '%s %s' returned %d",
+ __FUNCTION__, sd->subplugin, op, rc);
+ if (output) {
+ LOG(PIL_DEBUG, "plugin output: %s", output);
+ }
+ }
+
+ namecount = get_num_tokens(output);
+ sd->confignames = (char **)MALLOC((namecount+1)*sizeof(char *));
+ if (sd->confignames == NULL) {
+ LOG(PIL_CRIT, "%s: out of memory", __FUNCTION__);
+ if (output) { FREE(output); }
+ return NULL;
+ }
+
+ /* now copy over confignames */
+ pch = strtok(output, WHITESPACE);
+ for (i = 0; i < namecount; i++) {
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: %s configname %s",
+ __FUNCTION__, sd->subplugin, pch);
+ }
+ sd->confignames[i] = STRDUP(pch);
+ pch = strtok(NULL, WHITESPACE);
+ }
+ FREE(output);
+ sd->confignames[namecount] = NULL;
+ }else{
+ /* return list of subplugins in external directory */
+ struct dirent ** files = NULL;
+ int dircount;
+
+ /* get the external plugin's confignames (list of subplugins) */
+ dircount = scandir(STONITH_EXT_PLUGINDIR, &files,
+ SCANSEL_CAST exec_select, NULL);
+ if (dircount < 0) {
+ return NULL;
+ }
+
+ sd->confignames = (char **)MALLOC((dircount+1)*sizeof(char *));
+ if (!sd->confignames) {
+ LOG(PIL_CRIT, "%s: out of memory", __FUNCTION__);
+ return NULL;
+ }
+
+ for (i = 0; i < dircount; i++) {
+ sd->confignames[i] = STRDUP(files[i]->d_name);
+ free(files[i]);
+ files[i] = NULL;
+ }
+ free(files);
+ sd->confignames[dircount] = NULL;
+ }
+
+ return (const char * const *)sd->confignames;
+}
+
+/*
+ * Return STONITH info string
+ */
+static const char *
+external_getinfo(StonithPlugin * s, int reqtype)
+{
+ struct pluginDevice* sd;
+ char * output = NULL;
+ const char * op;
+ int rc;
+
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: called.", __FUNCTION__);
+ }
+
+ ERRIFWRONGDEV(s,NULL);
+
+ sd = (struct pluginDevice *)s;
+ if (sd->subplugin == NULL) {
+ LOG(PIL_CRIT, "%s: invoked without subplugin", __FUNCTION__);
+ return(NULL);
+ }
+
+ switch (reqtype) {
+ case ST_DEVICEID:
+ op = "getinfo-devid";
+ break;
+
+ case ST_DEVICENAME:
+ op = "getinfo-devname";
+ break;
+
+ case ST_DEVICEDESCR:
+ op = "getinfo-devdescr";
+ break;
+
+ case ST_DEVICEURL:
+ op = "getinfo-devurl";
+ break;
+
+ case ST_CONF_XML:
+ op = "getinfo-xml";
+ break;
+
+ default:
+ return NULL;
+ }
+
+ rc = external_run_cmd(sd, op, &output);
+ if (rc != 0) {
+ LOG(PIL_CRIT, "%s: '%s %s' failed with rc %d",
+ __FUNCTION__, sd->subplugin, op, rc);
+ if (output) {
+ LOG(PIL_CRIT, "plugin output: %s", output);
+ FREE(output);
+ }
+ }
+ else {
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: '%s %s' returned %d",
+ __FUNCTION__, sd->subplugin, op, rc);
+ }
+ if (sd->outputbuf != NULL) {
+ FREE(sd->outputbuf);
+ }
+ sd->outputbuf = output;
+ return(output);
+ }
+ return(NULL);
+}
+
+/*
+ * EXTERNAL Stonith destructor...
+ */
+static void
+external_destroy(StonithPlugin *s)
+{
+ struct pluginDevice * sd;
+ char ** p;
+
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: called.", __FUNCTION__);
+ }
+
+ VOIDERRIFWRONGDEV(s);
+
+ sd = (struct pluginDevice *)s;
+
+ sd->pluginid = NOTpluginID;
+ external_unconfig(sd);
+ if (sd->confignames != NULL) {
+ for (p = sd->confignames; *p; p++) {
+ FREE(*p);
+ }
+ FREE(sd->confignames);
+ sd->confignames = NULL;
+ }
+ if (sd->subplugin != NULL) {
+ FREE(sd->subplugin);
+ sd->subplugin = NULL;
+ }
+ if (sd->outputbuf != NULL) {
+ FREE(sd->outputbuf);
+ sd->outputbuf = NULL;
+ }
+ FREE(sd);
+}
+
+/* Create a new external Stonith device */
+static StonithPlugin *
+external_new(const char *subplugin)
+{
+ struct pluginDevice* sd = ST_MALLOCT(struct pluginDevice);
+
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: called.", __FUNCTION__);
+ }
+
+ if (sd == NULL) {
+ LOG(PIL_CRIT, "out of memory");
+ return(NULL);
+ }
+ memset(sd, 0, sizeof(*sd));
+ sd->pluginid = pluginid;
+ if (subplugin != NULL) {
+ sd->subplugin = STRDUP(subplugin);
+ if (sd->subplugin == NULL) {
+ FREE(sd);
+ return(NULL);
+ }
+ }
+ sd->sp.s_ops = &externalOps;
+ return &(sd->sp);
+}
+
+static void
+ext_add_to_env(gpointer key, gpointer value, gpointer user_data)
+{
+ if (setenv((char *)key, (char *)value, 1) != 0) {
+ LOG(PIL_CRIT, "%s: setenv failed.", __FUNCTION__);
+ }
+}
+
+static void
+ext_del_from_env(gpointer key, gpointer value, gpointer user_data)
+{
+ unsetenv((char *)key);
+}
+
+#define LOGTAG_VAR "HA_LOGTAG"
+
+/* Run the command with op as command line argument(s) and return the exit
+ * status + the output */
+static int
+external_run_cmd(struct pluginDevice *sd, const char *op, char **output)
+{
+ const int BUFF_LEN=4096;
+ char buff[BUFF_LEN];
+ int read_len = 0;
+ int status, rc;
+ char * data = NULL;
+ FILE * file;
+ char cmd[FILENAME_MAX+64];
+ struct stat buf;
+ int slen;
+ char *path, *new_path, *logtag, *savevar = NULL;
+ int new_path_len, logtag_len;
+ gboolean nodata;
+
+ rc = snprintf(cmd, FILENAME_MAX, "%s/%s",
+ STONITH_EXT_PLUGINDIR, sd->subplugin);
+ if (rc <= 0 || rc >= FILENAME_MAX) {
+ LOG(PIL_CRIT, "%s: external command too long.", __FUNCTION__);
+ return -1;
+ }
+
+ if (stat(cmd, &buf) != 0) {
+ LOG(PIL_CRIT, "%s: stat(2) of %s failed: %s",
+ __FUNCTION__, cmd, strerror(errno));
+ return -1;
+ }
+
+ if (!S_ISREG(buf.st_mode)
+ || (!(buf.st_mode & (S_IXUSR|S_IXGRP|S_IXOTH)))) {
+ LOG(PIL_CRIT, "%s: %s found NOT to be executable.",
+ __FUNCTION__, cmd);
+ return -1;
+ }
+
+ if (buf.st_mode & (S_IWGRP|S_IWOTH)) {
+ LOG(PIL_CRIT, "%s: %s found to be writable by group/others, "
+ "NOT executing for security purposes.",
+ __FUNCTION__, cmd);
+ return -1;
+ }
+
+ strcat(cmd, " ");
+ strcat(cmd, op);
+
+ /* We only have a global environment to use here. So we add our
+ * options to it, and then later remove them again. */
+ if (sd->cmd_opts) {
+ g_hash_table_foreach(sd->cmd_opts, ext_add_to_env, NULL);
+ }
+
+ /* external plugins need path to ha_log.sh */
+ path = getenv("PATH");
+ if (strncmp(GLUE_SHARED_DIR,path,strlen(GLUE_SHARED_DIR))) {
+ new_path_len = strlen(path)+strlen(GLUE_SHARED_DIR)+2;
+ new_path = (char *)g_malloc(new_path_len);
+ snprintf(new_path, new_path_len, "%s:%s", GLUE_SHARED_DIR, path);
+ setenv("PATH", new_path, 1);
+ g_free(new_path);
+ }
+
+ /* set the logtag appropriately */
+ logtag_len = strlen(PIL_PLUGIN_S)+strlen(sd->subplugin)+2;
+ logtag = (char *)g_malloc(logtag_len);
+ snprintf(logtag, logtag_len, "%s/%s", PIL_PLUGIN_S, sd->subplugin);
+ if (getenv(LOGTAG_VAR)) {
+ savevar = g_strdup(getenv(LOGTAG_VAR));
+ }
+ setenv(LOGTAG_VAR, logtag, 1);
+ g_free(logtag);
+
+ if (Debug) {
+ LOG(PIL_DEBUG, "%s: Calling '%s'", __FUNCTION__, cmd );
+ }
+ file = popen(cmd, "r");
+ if (NULL==file) {
+ LOG(PIL_CRIT, "%s: Calling '%s' failed",
+ __FUNCTION__, cmd);
+ rc = -1;
+ goto out;
+ }
+
+ if (output) {
+ slen=0;
+ data = MALLOC(1);
+ data[slen] = EOS;
+ }
+ while (!feof(file)) {
+ nodata = TRUE;
+ if (output) {
+ read_len = fread(buff, 1, BUFF_LEN, file);
+ if (read_len > 0) {
+ data = REALLOC(data, slen+read_len+1);
+ if (data == NULL) {
+ break;
+ }
+ memcpy(data + slen, buff, read_len);
+ slen += read_len;
+ data[slen] = EOS;
+ nodata = FALSE;
+ }
+ } else {
+ if (fgets(buff, BUFF_LEN, file)) {
+ LOG(PIL_INFO, "%s: '%s' output: %s", __FUNCTION__, cmd, buff);
+ nodata = FALSE;
+ }
+ }
+ if (nodata) {
+ sleep(1);
+ }
+ }
+ if (output && !data) {
+ LOG(PIL_CRIT, "%s: out of memory", __FUNCTION__);
+ rc = -1;
+ goto out;
+ }
+
+ status = pclose(file);
+ if (WIFEXITED(status)) {
+ rc = WEXITSTATUS(status);
+ if (rc != 0 && Debug) {
+ LOG(PIL_DEBUG,
+ "%s: Calling '%s' returned %d", __FUNCTION__, cmd, rc);
+ }
+ } else {
+ if (WIFSIGNALED(status)) {
+ LOG(PIL_CRIT, "%s: '%s' got signal %d",
+ __FUNCTION__, cmd, WTERMSIG(status));
+ } else if (WIFSTOPPED(status)) {
+ LOG(PIL_INFO, "%s: '%s' stopped with signal %d",
+ __FUNCTION__, cmd, WSTOPSIG(status));
+ } else {
+ LOG(PIL_CRIT, "%s: '%s' exited abnormally (core dumped?)",
+ __FUNCTION__, cmd);
+ }
+ rc = -1;
+ }
+ if (Debug && output && data) {
+ LOG(PIL_DEBUG, "%s: '%s' output: %s", __FUNCTION__, cmd, data);
+ }
+
+out:
+ if (savevar) {
+ setenv(LOGTAG_VAR, savevar, 1);
+ g_free(savevar);
+ } else {
+ unsetenv(LOGTAG_VAR);
+ }
+ if (sd->cmd_opts) {
+ g_hash_table_foreach(sd->cmd_opts, ext_del_from_env, NULL);
+ }
+ if (!rc) {
+ if (output) {
+ *output = data;
+ }
+ } else {
+ if (data) {
+ FREE(data);
+ }
+ if (output) {
+ *output = NULL;
+ }
+ }
+ return rc;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-10 08:28:45 +0000