diff --git a/src/hyperv/hyperv_driver.c b/src/hyperv/hyperv_driver.c
index ac10f86b82..3a2f6602bc 100644
--- a/src/hyperv/hyperv_driver.c
+++ b/src/hyperv/hyperv_driver.c
@@ -1381,7 +1381,7 @@ hypervDomainSendKey(virDomainPtr domain, unsigned int codeset,
 
     /* press the keys */
     for (i = 0; i < nkeycodes; i++) {
-        snprintf(keycodeStr, sizeof(keycodeStr), "%d", translatedKeycodes[i]);
+        g_snprintf(keycodeStr, sizeof(keycodeStr), "%d", translatedKeycodes[i]);
 
         params = hypervCreateInvokeParamsList(priv, "PressKey", selector,
                 Msvm_Keyboard_WmiInfo);
@@ -1409,7 +1409,7 @@ hypervDomainSendKey(virDomainPtr domain, unsigned int codeset,
 
     /* release the keys */
     for (i = 0; i < nkeycodes; i++) {
-        snprintf(keycodeStr, sizeof(keycodeStr), "%d", translatedKeycodes[i]);
+        g_snprintf(keycodeStr, sizeof(keycodeStr), "%d", translatedKeycodes[i]);
         params = hypervCreateInvokeParamsList(priv, "ReleaseKey", selector,
                 Msvm_Keyboard_WmiInfo);
 
diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c
index be7d85b264..6e4e6f5c90 100644
--- a/src/libxl/libxl_conf.c
+++ b/src/libxl/libxl_conf.c
@@ -418,12 +418,12 @@ libxlMakeDomBuildInfo(virDomainDefPtr def,
                                 continue;
                             }
 
-                            snprintf(xlCPU,
-                                    sizeof(xlCPU),
-                                    "%s=0",
-                                    xenTranslateCPUFeature(
-                                        def->cpu->features[i].name,
-                                        false));
+                            g_snprintf(xlCPU,
+                                       sizeof(xlCPU),
+                                       "%s=0",
+                                       xenTranslateCPUFeature(
+                                           def->cpu->features[i].name,
+                                           false));
                             if (libxl_cpuid_parse_config(&b_info->cpuid, xlCPU)) {
                                 virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                                         _("unsupported cpu feature '%s'"),
@@ -440,11 +440,11 @@ libxlMakeDomBuildInfo(virDomainDefPtr def,
                                 continue;
                             }
 
-                            snprintf(xlCPU,
-                                    sizeof(xlCPU),
-                                    "%s=1",
-                                    xenTranslateCPUFeature(
-                                        def->cpu->features[i].name, false));
+                            g_snprintf(xlCPU,
+                                       sizeof(xlCPU),
+                                       "%s=1",
+                                       xenTranslateCPUFeature(
+                                           def->cpu->features[i].name, false));
                             if (libxl_cpuid_parse_config(&b_info->cpuid, xlCPU)) {
                                 virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                                         _("unsupported cpu feature '%s'"),
diff --git a/src/libxl/libxl_migration.c b/src/libxl/libxl_migration.c
index 7e920050c4..3f87c35b1c 100644
--- a/src/libxl/libxl_migration.c
+++ b/src/libxl/libxl_migration.c
@@ -745,7 +745,7 @@ libxlDomainMigrationDstPrepare(virConnectPtr dconn,
         *uri_out = g_strdup_printf("tcp://%s:%d", hostname, port);
     }
 
-    snprintf(portstr, sizeof(portstr), "%d", port);
+    g_snprintf(portstr, sizeof(portstr), "%d", port);
 
     if (virNetSocketNewListenTCP(hostname, portstr,
                                  AF_UNSPEC,
@@ -1221,7 +1221,7 @@ libxlDomainMigrationSrcPerform(libxlDriverPrivatePtr driver,
 
     hostname = uri->server;
     port = uri->port;
-    snprintf(portstr, sizeof(portstr), "%d", port);
+    g_snprintf(portstr, sizeof(portstr), "%d", port);
 
     /* socket connect to dst host:port */
     if (virNetSocketNewConnectTCP(hostname, portstr,
diff --git a/src/lxc/lxc_process.c b/src/lxc/lxc_process.c
index 8ca3710436..012d482337 100644
--- a/src/lxc/lxc_process.c
+++ b/src/lxc/lxc_process.c
@@ -1415,10 +1415,10 @@ int virLXCProcessStart(virConnectPtr conn,
         if (virLXCProcessReadLogOutput(vm, logfile, pos, ebuf,
                                        sizeof(ebuf)) <= 0) {
             if (WIFEXITED(status))
-                snprintf(ebuf, sizeof(ebuf), _("unexpected exit status %d"),
-                         WEXITSTATUS(status));
+                g_snprintf(ebuf, sizeof(ebuf), _("unexpected exit status %d"),
+                           WEXITSTATUS(status));
             else
-                snprintf(ebuf, sizeof(ebuf), "%s", _("terminated abnormally"));
+                g_snprintf(ebuf, sizeof(ebuf), "%s", _("terminated abnormally"));
         }
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("guest failed to start: %s"), ebuf);
diff --git a/src/nwfilter/nwfilter_ebiptables_driver.c b/src/nwfilter/nwfilter_ebiptables_driver.c
index 6f1887977b..0cf8149193 100644
--- a/src/nwfilter/nwfilter_ebiptables_driver.c
+++ b/src/nwfilter/nwfilter_ebiptables_driver.c
@@ -76,9 +76,9 @@ enum ctdirStatus {
 static enum ctdirStatus iptables_ctdir_corrected;
 
 #define PRINT_ROOT_CHAIN(buf, prefix, ifname) \
-    snprintf(buf, sizeof(buf), "libvirt-%c-%s", prefix, ifname)
+    g_snprintf(buf, sizeof(buf), "libvirt-%c-%s", prefix, ifname)
 #define PRINT_CHAIN(buf, prefix, ifname, suffix) \
-    snprintf(buf, sizeof(buf), "%c-%s-%s", prefix, ifname, suffix)
+    g_snprintf(buf, sizeof(buf), "%c-%s-%s", prefix, ifname, suffix)
 
 #define VIRT_IN_CHAIN      "libvirt-in"
 #define VIRT_OUT_CHAIN     "libvirt-out"
@@ -86,7 +86,7 @@ static enum ctdirStatus iptables_ctdir_corrected;
 #define HOST_IN_CHAIN      "libvirt-host-in"
 
 #define PRINT_IPT_ROOT_CHAIN(buf, prefix, ifname) \
-    snprintf(buf, sizeof(buf), "%c%c-%s", prefix[0], prefix[1], ifname)
+    g_snprintf(buf, sizeof(buf), "%c%c-%s", prefix[0], prefix[1], ifname)
 
 static bool newMatchState;
 
@@ -204,7 +204,7 @@ _printDataType(virNWFilterVarCombIterPtr vars,
         data = virSocketAddrFormat(&item->u.ipaddr);
         if (!data)
             return -1;
-        if (snprintf(buf, bufsize, "%s", data) >= bufsize) {
+        if (g_snprintf(buf, bufsize, "%s", data) >= bufsize) {
             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                            _("buffer too small for IP address"));
             VIR_FREE(data);
@@ -218,7 +218,7 @@ _printDataType(virNWFilterVarCombIterPtr vars,
         if (!data)
             return -1;
 
-        if (snprintf(buf, bufsize, "%s", data) >= bufsize) {
+        if (g_snprintf(buf, bufsize, "%s", data) >= bufsize) {
             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                            _("buffer too small for IPv6 address"));
             VIR_FREE(data);
@@ -240,8 +240,8 @@ _printDataType(virNWFilterVarCombIterPtr vars,
 
     case DATATYPE_IPV6MASK:
     case DATATYPE_IPMASK:
-        if (snprintf(buf, bufsize, "%d",
-                     item->u.u8) >= bufsize) {
+        if (g_snprintf(buf, bufsize, "%d",
+                       item->u.u8) >= bufsize) {
             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                            _("Buffer too small for uint8 type"));
             return -1;
@@ -250,8 +250,8 @@ _printDataType(virNWFilterVarCombIterPtr vars,
 
     case DATATYPE_UINT32:
     case DATATYPE_UINT32_HEX:
-        if (snprintf(buf, bufsize, asHex ? "0x%x" : "%u",
-                     item->u.u32) >= bufsize) {
+        if (g_snprintf(buf, bufsize, asHex ? "0x%x" : "%u",
+                       item->u.u32) >= bufsize) {
             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                            _("Buffer too small for uint32 type"));
             return -1;
@@ -260,8 +260,8 @@ _printDataType(virNWFilterVarCombIterPtr vars,
 
     case DATATYPE_UINT16:
     case DATATYPE_UINT16_HEX:
-        if (snprintf(buf, bufsize, asHex ? "0x%x" : "%d",
-                     item->u.u16) >= bufsize) {
+        if (g_snprintf(buf, bufsize, asHex ? "0x%x" : "%d",
+                       item->u.u16) >= bufsize) {
             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                            _("Buffer too small for uint16 type"));
             return -1;
@@ -270,8 +270,8 @@ _printDataType(virNWFilterVarCombIterPtr vars,
 
     case DATATYPE_UINT8:
     case DATATYPE_UINT8_HEX:
-        if (snprintf(buf, bufsize, asHex ? "0x%x" : "%d",
-                     item->u.u8) >= bufsize) {
+        if (g_snprintf(buf, bufsize, asHex ? "0x%x" : "%d",
+                       item->u.u8) >= bufsize) {
             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                            _("Buffer too small for uint8 type"));
             return -1;
@@ -3192,11 +3192,11 @@ iptablesCheckBridgeNFCallEnabled(bool isIPv6)
             if (read(fd, buffer, 1) == 1) {
                 if (buffer[0] == '0') {
                     char msg[256];
-                    snprintf(msg, sizeof(msg),
-                             _("To enable ip%stables filtering for the VM do "
-                              "'echo 1 > %s'"),
-                             isIPv6 ? "6" : "",
-                             pathname);
+                    g_snprintf(msg, sizeof(msg),
+                               _("To enable ip%stables filtering for the VM do "
+                                "'echo 1 > %s'"),
+                               isIPv6 ? "6" : "",
+                               pathname);
                     VIR_WARN("%s", msg);
                     if (isIPv6)
                         lastReportIPv6 = now;
diff --git a/src/nwfilter/nwfilter_learnipaddr.c b/src/nwfilter/nwfilter_learnipaddr.c
index 293007300a..08ef02be7c 100644
--- a/src/nwfilter/nwfilter_learnipaddr.c
+++ b/src/nwfilter/nwfilter_learnipaddr.c
@@ -61,7 +61,7 @@ VIR_LOG_INIT("nwfilter.nwfilter_learnipaddr");
 
 #define IFINDEX2STR(VARNAME, ifindex) \
     char VARNAME[INT_BUFSIZE_BOUND(ifindex)]; \
-    snprintf(VARNAME, sizeof(VARNAME), "%d", ifindex);
+    g_snprintf(VARNAME, sizeof(VARNAME), "%d", ifindex);
 
 #define PKT_TIMEOUT_MS 500 /* ms */
 
diff --git a/src/openvz/openvz_driver.c b/src/openvz/openvz_driver.c
index 8a24c9265f..e07b3b302d 100644
--- a/src/openvz/openvz_driver.c
+++ b/src/openvz/openvz_driver.c
@@ -1248,7 +1248,7 @@ static int openvzDomainSetVcpusInternal(virDomainObjPtr vm,
     if (pcpus > 0 && pcpus < nvcpus)
         nvcpus = pcpus;
 
-    snprintf(str_vcpus, sizeof(str_vcpus), "%d", nvcpus);
+    g_snprintf(str_vcpus, sizeof(str_vcpus), "%d", nvcpus);
 
     openvzSetProgramSentinal(prog, vm->def->name);
     if (virRun(prog, NULL) < 0)
@@ -1503,7 +1503,7 @@ static int openvzConnectListDefinedDomains(virConnectPtr conn G_GNUC_UNUSED,
                            _("Could not parse VPS ID %s"), buf);
             continue;
         }
-        snprintf(vpsname, sizeof(vpsname), "%d", veid);
+        g_snprintf(vpsname, sizeof(vpsname), "%d", veid);
         names[got] = g_strdup(vpsname);
         got ++;
     }
@@ -1600,7 +1600,7 @@ openvzDomainSetMemoryInternal(virDomainObjPtr vm,
     };
 
     /* memory has to be changed its format from kbyte to byte */
-    snprintf(str_mem, sizeof(str_mem), "%llu", mem * 1024);
+    g_snprintf(str_mem, sizeof(str_mem), "%llu", mem * 1024);
 
     openvzSetProgramSentinal(prog, vm->def->name);
     if (virRun(prog, NULL) < 0)
diff --git a/src/qemu/qemu_agent.c b/src/qemu/qemu_agent.c
index 7905a74f90..e6add56cd6 100644
--- a/src/qemu/qemu_agent.c
+++ b/src/qemu/qemu_agent.c
@@ -2225,61 +2225,61 @@ qemuAgentGetFSInfoParams(qemuAgentPtr mon,
 
     for (i = 0; i < nfs; i++) {
         char param_name[VIR_TYPED_PARAM_FIELD_LENGTH];
-        snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-                 "fs.%zu.name", i);
+        g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+                   "fs.%zu.name", i);
         if (virTypedParamsAddString(params, nparams, maxparams,
                                     param_name, fsinfo[i]->name) < 0)
             goto cleanup;
-        snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-                 "fs.%zu.mountpoint", i);
+        g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+                   "fs.%zu.mountpoint", i);
         if (virTypedParamsAddString(params, nparams, maxparams,
                                     param_name, fsinfo[i]->mountpoint) < 0)
             goto cleanup;
-        snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-                 "fs.%zu.fstype", i);
+        g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+                   "fs.%zu.fstype", i);
         if (virTypedParamsAddString(params, nparams, maxparams,
                                     param_name, fsinfo[i]->fstype) < 0)
             goto cleanup;
 
         /* disk usage values are not returned by older guest agents, so
          * only add the params if the value is set */
-        snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-                 "fs.%zu.total-bytes", i);
+        g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+                   "fs.%zu.total-bytes", i);
         if (fsinfo[i]->total_bytes != -1 &&
             virTypedParamsAddULLong(params, nparams, maxparams,
                                     param_name, fsinfo[i]->total_bytes) < 0)
             goto cleanup;
 
-        snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-                 "fs.%zu.used-bytes", i);
+        g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+                   "fs.%zu.used-bytes", i);
         if (fsinfo[i]->used_bytes != -1 &&
             virTypedParamsAddULLong(params, nparams, maxparams,
                                     param_name, fsinfo[i]->used_bytes) < 0)
             goto cleanup;
 
-        snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-                 "fs.%zu.disk.count", i);
+        g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+                   "fs.%zu.disk.count", i);
         if (virTypedParamsAddUInt(params, nparams, maxparams,
                                   param_name, fsinfo[i]->ndisks) < 0)
             goto cleanup;
         for (j = 0; j < fsinfo[i]->ndisks; j++) {
             qemuAgentDiskInfoPtr d = fsinfo[i]->disks[j];
-            snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-                     "fs.%zu.disk.%zu.alias", i, j);
+            g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+                       "fs.%zu.disk.%zu.alias", i, j);
             if (d->alias &&
                 virTypedParamsAddString(params, nparams, maxparams,
                                         param_name, d->alias) < 0)
                 goto cleanup;
 
-            snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-                     "fs.%zu.disk.%zu.serial", i, j);
+            g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+                       "fs.%zu.disk.%zu.serial", i, j);
             if (d->serial &&
                 virTypedParamsAddString(params, nparams, maxparams,
                                         param_name, d->serial) < 0)
                 goto cleanup;
 
-            snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-                     "fs.%zu.disk.%zu.device", i, j);
+            g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+                       "fs.%zu.disk.%zu.device", i, j);
             if (d->devnode &&
                 virTypedParamsAddString(params, nparams, maxparams,
                                         param_name, d->devnode) < 0)
@@ -2582,15 +2582,15 @@ qemuAgentGetUsers(qemuAgentPtr mon,
             return -1;
         }
 
-        snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, "user.%zu.name", i);
+        g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, "user.%zu.name", i);
         if (virTypedParamsAddString(params, nparams, maxparams,
                                     param_name, strvalue) < 0)
             return -1;
 
         /* 'domain' is only present for windows guests */
         if ((strvalue = virJSONValueObjectGetString(entry, "domain"))) {
-            snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-                     "user.%zu.domain", i);
+            g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+                       "user.%zu.domain", i);
             if (virTypedParamsAddString(params, nparams, maxparams,
                                         param_name, strvalue) < 0)
                 return -1;
@@ -2601,8 +2601,8 @@ qemuAgentGetUsers(qemuAgentPtr mon,
                            _("'login-time' missing in reply of guest-get-users"));
             return -1;
         }
-        snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-                 "user.%zu.login-time", i);
+        g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+                   "user.%zu.login-time", i);
         if (virTypedParamsAddULLong(params, nparams, maxparams,
                                     param_name, logintime * 1000) < 0)
             return -1;
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 2f06217a5f..60f5732708 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -5106,8 +5106,8 @@ qemuDomainPinVcpuLive(virDomainObjPtr vm,
     if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, driver->caps) < 0)
         goto cleanup;
 
-    if (snprintf(paramField, VIR_TYPED_PARAM_FIELD_LENGTH,
-                 VIR_DOMAIN_TUNABLE_CPU_VCPUPIN, vcpu) < 0) {
+    if (g_snprintf(paramField, VIR_TYPED_PARAM_FIELD_LENGTH,
+                   VIR_DOMAIN_TUNABLE_CPU_VCPUPIN, vcpu) < 0) {
         goto cleanup;
     }
 
@@ -5801,8 +5801,8 @@ qemuDomainPinIOThread(virDomainPtr dom,
         if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, driver->caps) < 0)
             goto endjob;
 
-        if (snprintf(paramField, VIR_TYPED_PARAM_FIELD_LENGTH,
-                     VIR_DOMAIN_TUNABLE_CPU_IOTHREADSPIN, iothread_id) < 0) {
+        if (g_snprintf(paramField, VIR_TYPED_PARAM_FIELD_LENGTH,
+                       VIR_DOMAIN_TUNABLE_CPU_IOTHREADSPIN, iothread_id) < 0) {
             goto endjob;
         }
 
diff --git a/src/security/security_dac.c b/src/security/security_dac.c
index 56cca6cf9c..a9a1fad5d7 100644
--- a/src/security/security_dac.c
+++ b/src/security/security_dac.c
@@ -2342,8 +2342,8 @@ virSecurityDACGetProcessLabelInternal(pid_t pid,
         goto cleanup;
     }
 
-    snprintf(seclabel->label, VIR_SECURITY_LABEL_BUFLEN,
-             "+%u:+%u", (unsigned int)sb.st_uid, (unsigned int)sb.st_gid);
+    g_snprintf(seclabel->label, VIR_SECURITY_LABEL_BUFLEN,
+               "+%u:+%u", (unsigned int)sb.st_uid, (unsigned int)sb.st_gid);
     ret = 0;
 
  cleanup:
@@ -2371,8 +2371,8 @@ virSecurityDACGetProcessLabelInternal(pid_t pid,
         return -1;
     }
 
-    snprintf(seclabel->label, VIR_SECURITY_LABEL_BUFLEN,
-             "+%u:+%u", (unsigned int)p.ki_uid, (unsigned int)p.ki_groups[0]);
+    g_snprintf(seclabel->label, VIR_SECURITY_LABEL_BUFLEN,
+               "+%u:+%u", (unsigned int)p.ki_uid, (unsigned int)p.ki_groups[0]);
 
     return 0;
 }
diff --git a/src/security/virt-aa-helper.c b/src/security/virt-aa-helper.c
index 5ac9a9eeb8..bdb7f93a29 100644
--- a/src/security/virt-aa-helper.c
+++ b/src/security/virt-aa-helper.c
@@ -155,7 +155,7 @@ parserCommand(const char *profile_name, const char cmd)
         return -1;
     }
 
-    snprintf(flag, 3, "-%c", cmd);
+    g_snprintf(flag, 3, "-%c", cmd);
 
     profile = g_strdup_printf("%s/%s", APPARMOR_DIR "/libvirt", profile_name);
 
diff --git a/src/storage/storage_util.c b/src/storage/storage_util.c
index 7c17d39509..6d41df8d7e 100644
--- a/src/storage/storage_util.c
+++ b/src/storage/storage_util.c
@@ -3961,7 +3961,7 @@ virStorageBackendSCSIFindLUs(virStoragePoolObjPtr pool,
     if (virDirOpen(&devicedir, device_path) < 0)
         return -1;
 
-    snprintf(devicepattern, sizeof(devicepattern), "%u:%%u:%%u:%%u\n", scanhost);
+    g_snprintf(devicepattern, sizeof(devicepattern), "%u:%%u:%%u:%%u\n", scanhost);
 
     while ((retval = virDirRead(devicedir, &lun_dirent, device_path)) > 0) {
         int rc;
diff --git a/src/util/virhostcpu.c b/src/util/virhostcpu.c
index 1e685de386..a3ef067f41 100644
--- a/src/util/virhostcpu.c
+++ b/src/util/virhostcpu.c
@@ -794,7 +794,7 @@ virHostCPUGetStatsLinux(FILE *procstat,
     if (cpuNum == VIR_NODE_CPU_STATS_ALL_CPUS) {
         strcpy(cpu_header, "cpu ");
     } else {
-        snprintf(cpu_header, sizeof(cpu_header), "cpu%d ", cpuNum);
+        g_snprintf(cpu_header, sizeof(cpu_header), "cpu%d ", cpuNum);
     }
 
     while (fgets(line, sizeof(line), procstat) != NULL) {
diff --git a/src/util/viriptables.c b/src/util/viriptables.c
index b7cce40d37..6b3a025880 100644
--- a/src/util/viriptables.c
+++ b/src/util/viriptables.c
@@ -192,7 +192,7 @@ iptablesInput(virFirewallPtr fw,
 {
     char portstr[32];
 
-    snprintf(portstr, sizeof(portstr), "%d", port);
+    g_snprintf(portstr, sizeof(portstr), "%d", port);
     portstr[sizeof(portstr) - 1] = '\0';
 
     virFirewallAddRule(fw, layer,
@@ -217,7 +217,7 @@ iptablesOutput(virFirewallPtr fw,
 {
     char portstr[32];
 
-    snprintf(portstr, sizeof(portstr), "%d", port);
+    g_snprintf(portstr, sizeof(portstr), "%d", port);
     portstr[sizeof(portstr) - 1] = '\0';
 
     virFirewallAddRule(fw, layer,
@@ -1100,7 +1100,7 @@ iptablesOutputFixUdpChecksum(virFirewallPtr fw,
 {
     char portstr[32];
 
-    snprintf(portstr, sizeof(portstr), "%d", port);
+    g_snprintf(portstr, sizeof(portstr), "%d", port);
     portstr[sizeof(portstr) - 1] = '\0';
 
     virFirewallAddRule(fw, VIR_FIREWALL_LAYER_IPV4,
diff --git a/src/util/virmacaddr.c b/src/util/virmacaddr.c
index 5f825735ae..3eb6407c45 100644
--- a/src/util/virmacaddr.c
+++ b/src/util/virmacaddr.c
@@ -187,10 +187,10 @@ const char *
 virMacAddrFormat(const virMacAddr *addr,
                  char *str)
 {
-    snprintf(str, VIR_MAC_STRING_BUFLEN,
-             "%02x:%02x:%02x:%02x:%02x:%02x",
-             addr->addr[0], addr->addr[1], addr->addr[2],
-             addr->addr[3], addr->addr[4], addr->addr[5]);
+    g_snprintf(str, VIR_MAC_STRING_BUFLEN,
+               "%02x:%02x:%02x:%02x:%02x:%02x",
+               addr->addr[0], addr->addr[1], addr->addr[2],
+               addr->addr[3], addr->addr[4], addr->addr[5]);
     str[VIR_MAC_STRING_BUFLEN-1] = '\0';
     return str;
 }
diff --git a/src/util/virnetdevbridge.c b/src/util/virnetdevbridge.c
index d466545cc1..3a7a6dc730 100644
--- a/src/util/virnetdevbridge.c
+++ b/src/util/virnetdevbridge.c
@@ -126,7 +126,7 @@ static int virNetDevBridgeSet(const char *brname,
 
     if (virFileExists(path)) {
         char valuestr[INT_BUFSIZE_BOUND(value)];
-        snprintf(valuestr, sizeof(valuestr), "%lu", value);
+        g_snprintf(valuestr, sizeof(valuestr), "%lu", value);
         if (virFileWriteStr(path, valuestr, 0) >= 0)
             return 0;
         VIR_DEBUG("Unable to set bridge %s %s via sysfs", brname, paramname);
@@ -219,7 +219,7 @@ virNetDevBridgePortSet(const char *brname,
     int ret = -1;
     g_autofree char *path = NULL;
 
-    snprintf(valuestr, sizeof(valuestr), "%lu", value);
+    g_snprintf(valuestr, sizeof(valuestr), "%lu", value);
 
     path = g_strdup_printf(SYSFS_NET_DIR "%s/brif/%s/%s", brname, ifname,
                            paramname);
diff --git a/src/util/virnetdevmacvlan.c b/src/util/virnetdevmacvlan.c
index cb901d7136..68c68a19ff 100644
--- a/src/util/virnetdevmacvlan.c
+++ b/src/util/virnetdevmacvlan.c
@@ -526,11 +526,11 @@ typedef struct virNetlinkCallbackData *virNetlinkCallbackDataPtr;
 static int instance2str(const unsigned char *p, char *dst, size_t size)
 {
     if (dst && size > INSTANCE_STRLEN) {
-        snprintf(dst, size, "%02x%02x%02x%02x-%02x%02x-%02x%02x-"
-                 "%02x%02x-%02x%02x%02x%02x%02x%02x",
-                 p[0], p[1], p[2], p[3],
-                 p[4], p[5], p[6], p[7],
-                 p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
+        g_snprintf(dst, size, "%02x%02x%02x%02x-%02x%02x-%02x%02x-"
+                   "%02x%02x-%02x%02x%02x%02x%02x%02x",
+                   p[0], p[1], p[2], p[3],
+                   p[4], p[5], p[6], p[7],
+                   p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
         return 0;
     }
     return -1;
@@ -997,7 +997,7 @@ virNetDevMacVLanCreateWithVPortProfile(const char *ifnameRequested,
             virMutexUnlock(&virNetDevMacVLanCreateMutex);
             return -1;
         }
-        snprintf(ifname, sizeof(ifname), pattern, reservedID);
+        g_snprintf(ifname, sizeof(ifname), pattern, reservedID);
         if (virNetDevMacVLanCreate(ifname, type, macaddress, linkdev,
                                    macvtapMode, &do_retry) < 0) {
             virNetDevMacVLanReleaseID(reservedID, flags);
diff --git a/src/util/virpci.c b/src/util/virpci.c
index 9a43df7ab2..9bea5a20d0 100644
--- a/src/util/virpci.c
+++ b/src/util/virpci.c
@@ -1394,8 +1394,8 @@ virPCIDeviceNew(unsigned int domain,
     }
 
     /* strings contain '0x' prefix */
-    if (snprintf(dev->id, sizeof(dev->id), "%s %s", &vendor[2],
-                 &product[2]) >= sizeof(dev->id)) {
+    if (g_snprintf(dev->id, sizeof(dev->id), "%s %s", &vendor[2],
+                   &product[2]) >= sizeof(dev->id)) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("dev->id buffer overflow: %s %s"),
                        &vendor[2], &product[2]);
diff --git a/src/util/virpidfile.c b/src/util/virpidfile.c
index 5d1a820cd1..a825a23e49 100644
--- a/src/util/virpidfile.c
+++ b/src/util/virpidfile.c
@@ -67,7 +67,7 @@ int virPidFileWritePath(const char *pidfile,
         goto cleanup;
     }
 
-    snprintf(pidstr, sizeof(pidstr), "%lld", (long long) pid);
+    g_snprintf(pidstr, sizeof(pidstr), "%lld", (long long) pid);
 
     if (safewrite(fd, pidstr, strlen(pidstr)) < 0) {
         rc = -errno;
@@ -392,7 +392,7 @@ int virPidFileAcquirePath(const char *path,
         /* Someone else must be racing with us, so try again */
     }
 
-    snprintf(pidstr, sizeof(pidstr), "%lld", (long long) pid);
+    g_snprintf(pidstr, sizeof(pidstr), "%lld", (long long) pid);
 
     if (ftruncate(fd, 0) < 0) {
         virReportSystemError(errno,
diff --git a/src/util/virtime.c b/src/util/virtime.c
index 6f978d7c64..701b2f085a 100644
--- a/src/util/virtime.c
+++ b/src/util/virtime.c
@@ -209,11 +209,11 @@ int virTimeStringThenRaw(unsigned long long when, char *buf)
     fields.tm_year += 1900;
     fields.tm_mon += 1;
 
-    if (snprintf(buf, VIR_TIME_STRING_BUFLEN,
-                 "%4d-%02d-%02d %02d:%02d:%02d.%03d+0000",
-                 fields.tm_year, fields.tm_mon, fields.tm_mday,
-                 fields.tm_hour, fields.tm_min, fields.tm_sec,
-                 (int) (when % 1000)) >= VIR_TIME_STRING_BUFLEN) {
+    if (g_snprintf(buf, VIR_TIME_STRING_BUFLEN,
+                   "%4d-%02d-%02d %02d:%02d:%02d.%03d+0000",
+                   fields.tm_year, fields.tm_mon, fields.tm_mday,
+                   fields.tm_hour, fields.tm_min, fields.tm_sec,
+                   (int) (when % 1000)) >= VIR_TIME_STRING_BUFLEN) {
         errno = ERANGE;
         return -1;
     }
diff --git a/src/util/virusb.c b/src/util/virusb.c
index 7ce582085f..a2562b7ea8 100644
--- a/src/util/virusb.c
+++ b/src/util/virusb.c
@@ -319,8 +319,8 @@ virUSBDeviceNew(unsigned int bus,
     dev->bus     = bus;
     dev->dev     = devno;
 
-    if (snprintf(dev->name, sizeof(dev->name), "%.3d:%.3d",
-                 dev->bus, dev->dev) >= sizeof(dev->name)) {
+    if (g_snprintf(dev->name, sizeof(dev->name), "%.3d:%.3d",
+                   dev->bus, dev->dev) >= sizeof(dev->name)) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("dev->name buffer overflow: %.3d:%.3d"),
                        dev->bus, dev->dev);
@@ -337,8 +337,8 @@ virUSBDeviceNew(unsigned int bus,
     }
 
     /* XXX fixme. this should be product/vendor */
-    if (snprintf(dev->id, sizeof(dev->id), "%d %d", dev->bus,
-                 dev->dev) >= sizeof(dev->id)) {
+    if (g_snprintf(dev->id, sizeof(dev->id), "%d %d", dev->bus,
+                   dev->dev) >= sizeof(dev->id)) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("dev->id buffer overflow: %d %d"),
                        dev->bus, dev->dev);
diff --git a/src/util/viruuid.c b/src/util/viruuid.c
index 8930a0e199..7626d72c23 100644
--- a/src/util/viruuid.c
+++ b/src/util/viruuid.c
@@ -153,12 +153,12 @@ virUUIDParse(const char *uuidstr, unsigned char *uuid)
 const char *
 virUUIDFormat(const unsigned char *uuid, char *uuidstr)
 {
-    snprintf(uuidstr, VIR_UUID_STRING_BUFLEN,
-             "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
-             uuid[0], uuid[1], uuid[2], uuid[3],
-             uuid[4], uuid[5], uuid[6], uuid[7],
-             uuid[8], uuid[9], uuid[10], uuid[11],
-             uuid[12], uuid[13], uuid[14], uuid[15]);
+    g_snprintf(uuidstr, VIR_UUID_STRING_BUFLEN,
+               "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+               uuid[0], uuid[1], uuid[2], uuid[3],
+               uuid[4], uuid[5], uuid[6], uuid[7],
+               uuid[8], uuid[9], uuid[10], uuid[11],
+               uuid[12], uuid[13], uuid[14], uuid[15]);
     uuidstr[VIR_UUID_STRING_BUFLEN-1] = '\0';
     return uuidstr;
 }
diff --git a/src/vbox/vbox_common.c b/src/vbox/vbox_common.c
index 043c26b9f6..88ef41b5df 100644
--- a/src/vbox/vbox_common.c
+++ b/src/vbox/vbox_common.c
@@ -1288,14 +1288,14 @@ vboxAttachNetwork(virDomainDefPtr def, vboxDriverPtr data, IMachine *machine)
         PRUnichar *MACAddress = NULL;
 
         virMacAddrFormat(&def->nets[i]->mac, macaddr);
-        snprintf(macaddrvbox, VIR_MAC_STRING_BUFLEN - 5,
-                 "%02X%02X%02X%02X%02X%02X",
-                 def->nets[i]->mac.addr[0],
-                 def->nets[i]->mac.addr[1],
-                 def->nets[i]->mac.addr[2],
-                 def->nets[i]->mac.addr[3],
-                 def->nets[i]->mac.addr[4],
-                 def->nets[i]->mac.addr[5]);
+        g_snprintf(macaddrvbox, VIR_MAC_STRING_BUFLEN - 5,
+                   "%02X%02X%02X%02X%02X%02X",
+                   def->nets[i]->mac.addr[0],
+                   def->nets[i]->mac.addr[1],
+                   def->nets[i]->mac.addr[2],
+                   def->nets[i]->mac.addr[3],
+                   def->nets[i]->mac.addr[4],
+                   def->nets[i]->mac.addr[5]);
         macaddrvbox[VIR_MAC_STRING_BUFLEN - 6] = '\0';
 
         VIR_DEBUG("NIC(%zu): Type:   %d", i, def->nets[i]->type);
@@ -1786,15 +1786,15 @@ vboxAttachUSB(virDomainDefPtr def, vboxDriverPtr data, IMachine *machine)
             continue;
 
         if (def->hostdevs[i]->source.subsys.u.usb.vendor) {
-            snprintf(vendorId, sizeof(vendorId), "%x",
-                     def->hostdevs[i]->source.subsys.u.usb.vendor);
+            g_snprintf(vendorId, sizeof(vendorId), "%x",
+                       def->hostdevs[i]->source.subsys.u.usb.vendor);
             VBOX_UTF8_TO_UTF16(vendorId, &vendorIdUtf16);
             gVBoxAPI.UIUSBDeviceFilter.SetVendorId(filter, vendorIdUtf16);
             VBOX_UTF16_FREE(vendorIdUtf16);
         }
         if (def->hostdevs[i]->source.subsys.u.usb.product) {
-            snprintf(productId, sizeof(productId), "%x",
-                     def->hostdevs[i]->source.subsys.u.usb.product);
+            g_snprintf(productId, sizeof(productId), "%x",
+                       def->hostdevs[i]->source.subsys.u.usb.product);
             VBOX_UTF8_TO_UTF16(productId, &productIdUtf16);
             gVBoxAPI.UIUSBDeviceFilter.SetProductId(filter,
                                                     productIdUtf16);
diff --git a/src/vbox/vbox_tmpl.c b/src/vbox/vbox_tmpl.c
index a5a907768b..872825d86f 100644
--- a/src/vbox/vbox_tmpl.c
+++ b/src/vbox/vbox_tmpl.c
@@ -214,7 +214,7 @@ static PRUnichar *PRUnicharFromInt(PCVBOXXPCOM pFuncs, int n) {
     PRUnichar *strUtf16 = NULL;
     char s[24];
 
-    snprintf(s, sizeof(s), "%d", n);
+    g_snprintf(s, sizeof(s), "%d", n);
 
     pFuncs->pfnUtf8ToUtf16(s, &strUtf16);
 
diff --git a/src/vmx/vmx.c b/src/vmx/vmx.c
index 2cd6fc6049..0ccc4eefe6 100644
--- a/src/vmx/vmx.c
+++ b/src/vmx/vmx.c
@@ -500,7 +500,7 @@ def->parallels[0]...
 #define VIR_FROM_THIS VIR_FROM_NONE
 
 #define VMX_BUILD_NAME_EXTRA(_suffix, _extra) \
-    snprintf(_suffix##_name, sizeof(_suffix##_name), "%s."_extra, prefix);
+    g_snprintf(_suffix##_name, sizeof(_suffix##_name), "%s."_extra, prefix);
 
 #define VMX_BUILD_NAME(_suffix) \
     VMX_BUILD_NAME_EXTRA(_suffix, #_suffix)
@@ -640,7 +640,7 @@ virVMXEscapeHex(const char *string, char escape, const char *special)
         if (*tmp1 == escape || strspn(tmp1, special) > 0) {
             *tmp2++ = escape;
 
-            snprintf(tmp2, 3, "%02x", (unsigned int)*tmp1);
+            g_snprintf(tmp2, 3, "%02x", (unsigned int)*tmp1);
 
             tmp2 += 2;
         } else {
@@ -1951,9 +1951,9 @@ virVMXParseSCSIController(virConfPtr conf, int controller, bool *present,
         return -1;
     }
 
-    snprintf(present_name, sizeof(present_name), "scsi%d.present", controller);
-    snprintf(virtualDev_name, sizeof(virtualDev_name), "scsi%d.virtualDev",
-             controller);
+    g_snprintf(present_name, sizeof(present_name), "scsi%d.present", controller);
+    g_snprintf(virtualDev_name, sizeof(virtualDev_name), "scsi%d.virtualDev",
+               controller);
 
     if (virVMXGetConfigBoolean(conf, present_name, present, false, true) < 0)
         goto cleanup;
@@ -2443,7 +2443,7 @@ int virVMXParseFileSystem(virConfPtr conf, int number, virDomainFSDefPtr *def)
         return -1;
     }
 
-    snprintf(prefix, sizeof(prefix), "sharedFolder%d", number);
+    g_snprintf(prefix, sizeof(prefix), "sharedFolder%d", number);
 
     VMX_BUILD_NAME(present);
     VMX_BUILD_NAME(enabled);
@@ -2548,7 +2548,7 @@ virVMXParseEthernet(virConfPtr conf, int controller, virDomainNetDefPtr *def)
         return -1;
     }
 
-    snprintf(prefix, sizeof(prefix), "ethernet%d", controller);
+    g_snprintf(prefix, sizeof(prefix), "ethernet%d", controller);
 
     VMX_BUILD_NAME(present);
     VMX_BUILD_NAME(startConnected);
@@ -2753,7 +2753,7 @@ virVMXParseSerial(virVMXContext *ctx, virConfPtr conf, int port,
         return -1;
     }
 
-    snprintf(prefix, sizeof(prefix), "serial%d", port);
+    g_snprintf(prefix, sizeof(prefix), "serial%d", port);
 
     VMX_BUILD_NAME(present);
     VMX_BUILD_NAME(startConnected);
@@ -2930,7 +2930,7 @@ virVMXParseParallel(virVMXContext *ctx, virConfPtr conf, int port,
         return -1;
     }
 
-    snprintf(prefix, sizeof(prefix), "parallel%d", port);
+    g_snprintf(prefix, sizeof(prefix), "parallel%d", port);
 
     VMX_BUILD_NAME(present);
     VMX_BUILD_NAME(startConnected);
diff --git a/src/vz/vz_driver.c b/src/vz/vz_driver.c
index f3cd919086..6b925653d5 100644
--- a/src/vz/vz_driver.c
+++ b/src/vz/vz_driver.c
@@ -3453,8 +3453,8 @@ vzDomainGetJobStats(virDomainPtr domain,
 #define VZ_ADD_STAT_PARAM_UUL(group, field, counter) \
 do { \
     if (stat.field != -1) { \
-        snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, \
-                 group ".%zu." counter, i); \
+        g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, \
+                   group ".%zu." counter, i); \
         if (virTypedParamsAddULLong(&record->params, \
                                     &record->nparams, \
                                     maxparams, \
@@ -3490,8 +3490,8 @@ vzDomainGetBlockStats(virDomainObjPtr dom,
                                 IS_CT(dom->def)) < 0)
             return -1;
 
-        snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-                 "block.%zu.name", i);
+        g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+                   "block.%zu.name", i);
         if (virTypedParamsAddString(&record->params,
                                     &record->nparams,
                                     maxparams,
@@ -3500,8 +3500,8 @@ vzDomainGetBlockStats(virDomainObjPtr dom,
             return -1;
 
         if (virStorageSourceIsLocalStorage(disk->src) && disk->src->path) {
-            snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-                     "block.%zu.path", i);
+            g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+                       "block.%zu.path", i);
             if (virTypedParamsAddString(&record->params,
                                         &record->nparams,
                                         maxparams,
@@ -3516,8 +3516,8 @@ vzDomainGetBlockStats(virDomainObjPtr dom,
         VZ_ADD_STAT_PARAM_UUL("block", wr_bytes, "wr.bytes");
 
         if (disk->device == VIR_DOMAIN_DISK_DEVICE_DISK) {
-            snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-                     "block.%zu.capacity", i);
+            g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+                       "block.%zu.capacity", i);
             if (virTypedParamsAddULLong(&record->params,
                                         &record->nparams,
                                         maxparams,
@@ -3555,7 +3555,7 @@ vzDomainGetNetStats(virDomainObjPtr dom,
                               &stat) < 0)
             return -1;
 
-        snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, "net.%zu.name", i);
+        g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, "net.%zu.name", i);
         if (virTypedParamsAddString(&record->params,
                                     &record->nparams,
                                     maxparams,
@@ -3600,7 +3600,7 @@ vzDomainGetVCPUStats(virDomainObjPtr dom,
                                                  VIR_VCPU_OFFLINE;
         unsigned long long time;
 
-        snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, "vcpu.%zu.state", i);
+        g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, "vcpu.%zu.state", i);
         if (virTypedParamsAddInt(&record->params,
                                  &record->nparams,
                                  maxparams,
@@ -3611,7 +3611,7 @@ vzDomainGetVCPUStats(virDomainObjPtr dom,
         if (prlsdkGetVcpuStats(privdom->stats, i, &time) < 0)
             return -1;
 
-        snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, "vcpu.%zu.time", i);
+        g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, "vcpu.%zu.time", i);
         if (virTypedParamsAddULLong(&record->params,
                                     &record->nparams,
                                     maxparams,
diff --git a/src/vz/vz_sdk.c b/src/vz/vz_sdk.c
index 76165290b8..0daffb6844 100644
--- a/src/vz/vz_sdk.c
+++ b/src/vz/vz_sdk.c
@@ -3171,10 +3171,10 @@ static int prlsdkAddSerial(PRL_HANDLE sdkdom, virDomainChrDefPtr chr)
 
 static const char * prlsdkFormatMac(virMacAddrPtr mac, char *macstr)
 {
-    snprintf(macstr, PRL_MAC_STRING_BUFNAME,
-             "%02X%02X%02X%02X%02X%02X",
-             mac->addr[0], mac->addr[1], mac->addr[2],
-             mac->addr[3], mac->addr[4], mac->addr[5]);
+    g_snprintf(macstr, PRL_MAC_STRING_BUFNAME,
+               "%02X%02X%02X%02X%02X%02X",
+               mac->addr[0], mac->addr[1], mac->addr[2],
+               mac->addr[3], mac->addr[4], mac->addr[5]);
     macstr[PRL_MAC_STRING_BUFNAME - 1] = '\0';
     return macstr;
 }
diff --git a/tests/libxlmock.c b/tests/libxlmock.c
index 4476cf728f..38302b2ae8 100644
--- a/tests/libxlmock.c
+++ b/tests/libxlmock.c
@@ -99,7 +99,7 @@ VIR_MOCK_IMPL_RET_ARGS(virFileMakePath, int,
 {
     /* replace log path with a writable directory */
     if (strstr(path, "/log/")) {
-        snprintf((char*)path, strlen(path), ".");
+        g_snprintf((char*)path, strlen(path), ".");
         return 0;
     }
     return real_virFileMakePath(path);
diff --git a/tests/qemuagenttest.c b/tests/qemuagenttest.c
index e767e6c0f6..9dbbfb3cfe 100644
--- a/tests/qemuagenttest.c
+++ b/tests/qemuagenttest.c
@@ -1111,8 +1111,8 @@ checkUserInfo(virTypedParameterPtr params,
     const char *domain = NULL;
     unsigned long long logintime = 0;
 
-    snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-             "user.%zu.name", nth);
+    g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+               "user.%zu.name", nth);
     if (virTypedParamsGetString(params, nparams, param_name, &username) < 0)
         return -1;
 
@@ -1123,8 +1123,8 @@ checkUserInfo(virTypedParameterPtr params,
         return -1;
     }
 
-    snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-             "user.%zu.domain", nth);
+    g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+               "user.%zu.domain", nth);
     if (virTypedParamsGetString(params, nparams, param_name, &domain) < 0)
         return -1;
 
@@ -1135,8 +1135,8 @@ checkUserInfo(virTypedParameterPtr params,
         return -1;
     }
 
-    snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
-             "user.%zu.login-time", nth);
+    g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
+               "user.%zu.login-time", nth);
     if (virTypedParamsGetULLong(params, nparams, param_name, &logintime) < 0)
         return -1;
 
diff --git a/tests/testutils.c b/tests/testutils.c
index 3cd3391dfa..f5d8487736 100644
--- a/tests/testutils.c
+++ b/tests/testutils.c
@@ -1187,7 +1187,7 @@ const char
     /* calculate length of the rest of the string */
     len -= (virtTestCounterPrefixEndOffset - virtTestCounterStr);
 
-    snprintf(virtTestCounterPrefixEndOffset, len, "%d", ++virtTestCounter);
+    g_snprintf(virtTestCounterPrefixEndOffset, len, "%d", ++virtTestCounter);
 
     return virtTestCounterStr;
 }
diff --git a/tests/virnetsockettest.c b/tests/virnetsockettest.c
index 3a5959b27e..42a3971d41 100644
--- a/tests/virnetsockettest.c
+++ b/tests/virnetsockettest.c
@@ -211,7 +211,7 @@ testSocketAccept(const void *opaque)
 
         cdata.path = path;
     } else {
-        snprintf(portstr, sizeof(portstr), "%d", data->port);
+        g_snprintf(portstr, sizeof(portstr), "%d", data->port);
         if (virNetSocketNewListenTCP(data->lnode, portstr,
                                      AF_UNSPEC,
                                      &lsock, &nlsock) < 0)
diff --git a/tests/virpcimock.c b/tests/virpcimock.c
index 7e4554a1dc..341afb385b 100644
--- a/tests/virpcimock.c
+++ b/tests/virpcimock.c
@@ -417,9 +417,9 @@ pci_device_create_iommu(const struct pciDevice *dev,
     if (virFileMakePath(iommuPath) < 0)
         ABORT("Unable to create: %s", iommuPath);
 
-    if (snprintf(tmp, sizeof(tmp),
-                 "../../../../devices/pci%04x:%02x/%s",
-                 dev->addr.domain, dev->addr.bus, devid) < 0) {
+    if (g_snprintf(tmp, sizeof(tmp),
+                   "../../../../devices/pci%04x:%02x/%s",
+                   dev->addr.domain, dev->addr.bus, devid) < 0) {
         ABORT("@tmp overflow");
     }
 
@@ -512,15 +512,15 @@ pci_device_new_from_stub(const struct pciDevice *data)
         make_file(devpath, "config", "some dummy config", -1);
     }
 
-    if (snprintf(tmp, sizeof(tmp),  "0x%.4x", dev->vendor) < 0)
+    if (g_snprintf(tmp, sizeof(tmp),  "0x%.4x", dev->vendor) < 0)
         ABORT("@tmp overflow");
     make_file(devpath, "vendor", tmp, -1);
 
-    if (snprintf(tmp, sizeof(tmp),  "0x%.4x", dev->device) < 0)
+    if (g_snprintf(tmp, sizeof(tmp),  "0x%.4x", dev->device) < 0)
         ABORT("@tmp overflow");
     make_file(devpath, "device", tmp, -1);
 
-    if (snprintf(tmp, sizeof(tmp),  "0x%.4x", dev->klass) < 0)
+    if (g_snprintf(tmp, sizeof(tmp),  "0x%.4x", dev->klass) < 0)
         ABORT("@tmp overflow");
     make_file(devpath, "class", tmp, -1);
 
@@ -528,15 +528,15 @@ pci_device_new_from_stub(const struct pciDevice *data)
 
     pci_device_create_iommu(dev, devid);
 
-    if (snprintf(tmp, sizeof(tmp),
-                 "../../../kernel/iommu_groups/%d", dev->iommuGroup) < 0) {
+    if (g_snprintf(tmp, sizeof(tmp),
+                   "../../../kernel/iommu_groups/%d", dev->iommuGroup) < 0) {
         ABORT("@tmp overflow");
     }
     make_symlink(devpath, "iommu_group", tmp);
 
-    if (snprintf(tmp, sizeof(tmp),
-                 "../../../devices/pci%04x:%02x/%s",
-                 dev->addr.domain, dev->addr.bus, devid) < 0) {
+    if (g_snprintf(tmp, sizeof(tmp),
+                   "../../../devices/pci%04x:%02x/%s",
+                   dev->addr.domain, dev->addr.bus, devid) < 0) {
         ABORT("@tmp overflow");
     }
 
@@ -545,9 +545,9 @@ pci_device_new_from_stub(const struct pciDevice *data)
     make_symlink(devsympath, devid, tmp);
 
     if (dev->physfn) {
-        if (snprintf(tmp, sizeof(tmp),
-                     "%s%s/devices/%s", fakerootdir,
-                     SYSFS_PCI_PREFIX, dev->physfn) < 0) {
+        if (g_snprintf(tmp, sizeof(tmp),
+                       "%s%s/devices/%s", fakerootdir,
+                       SYSFS_PCI_PREFIX, dev->physfn) < 0) {
             ABORT("@tmp overflow");
         }
         make_symlink(devpath, "physfn", tmp);
diff --git a/tests/virsystemdtest.c b/tests/virsystemdtest.c
index b85259f61f..b5624241bb 100644
--- a/tests/virsystemdtest.c
+++ b/tests/virsystemdtest.c
@@ -564,8 +564,8 @@ testActivation(bool useNames)
     for (i = 0; i < nsockIP; i++)
         virBufferAddLit(&names, ":demo-ip.socket");
 
-    snprintf(nfdstr, sizeof(nfdstr), "%zu", 1 + nsockIP);
-    snprintf(pidstr, sizeof(pidstr), "%lld", (long long)getpid());
+    g_snprintf(nfdstr, sizeof(nfdstr), "%zu", 1 + nsockIP);
+    g_snprintf(pidstr, sizeof(pidstr), "%lld", (long long)getpid());
 
     setenv("LISTEN_FDS", nfdstr, 1);
     setenv("LISTEN_PID", pidstr, 1);
diff --git a/tools/virsh-domain-monitor.c b/tools/virsh-domain-monitor.c
index 034c913d5e..c2f157ad6b 100644
--- a/tools/virsh-domain-monitor.c
+++ b/tools/virsh-domain-monitor.c
@@ -2003,7 +2003,7 @@ cmdList(vshControl *ctl, const vshCmd *cmd)
         dom = list->domains[i];
         id = virDomainGetID(dom);
         if (id != (unsigned int) -1)
-            snprintf(id_buf, sizeof(id_buf), "%d", id);
+            g_snprintf(id_buf, sizeof(id_buf), "%d", id);
         else
             ignore_value(virStrcpyStatic(id_buf, "-"));
 
diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index cfdaec1673..b248a15c16 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -12098,7 +12098,7 @@ virshDomainDetachInterface(char *doc,
         goto cleanup;
     }
 
-    snprintf(buf, sizeof(buf), "/domain/devices/interface[@type='%s']", type);
+    g_snprintf(buf, sizeof(buf), "/domain/devices/interface[@type='%s']", type);
     obj = xmlXPathEval(BAD_CAST buf, ctxt);
     if (obj == NULL || obj->type != XPATH_NODESET ||
         obj->nodesetval == NULL || obj->nodesetval->nodeNr == 0) {
diff --git a/tools/virt-host-validate-common.c b/tools/virt-host-validate-common.c
index af8def21f3..bce0f14917 100644
--- a/tools/virt-host-validate-common.c
+++ b/tools/virt-host-validate-common.c
@@ -172,7 +172,7 @@ int virHostValidateNamespace(const char *hvname,
     virHostMsgCheck(hvname, "for namespace %s", ns_name);
     char nspath[100];
 
-    snprintf(nspath, sizeof(nspath), "/proc/self/ns/%s", ns_name);
+    g_snprintf(nspath, sizeof(nspath), "/proc/self/ns/%s", ns_name);
 
     if (access(nspath, F_OK) < 0) {
         virHostMsgFail(level, "%s", hint);
diff --git a/tools/vsh-table.c b/tools/vsh-table.c
index c2271a4e2d..9008b0d431 100644
--- a/tools/vsh-table.c
+++ b/tools/vsh-table.c
@@ -227,7 +227,7 @@ vshTableSafeEncode(const char *s, size_t *width)
     while (p && *p) {
         if ((*p == '\\' && *(p + 1) == 'x') ||
             c_iscntrl(*p)) {
-            snprintf(buf, HEX_ENCODE_LENGTH + 1, "\\x%02x", *p);
+            g_snprintf(buf, HEX_ENCODE_LENGTH + 1, "\\x%02x", *p);
             buf += HEX_ENCODE_LENGTH;
             *width += HEX_ENCODE_LENGTH;
             p++;
@@ -245,7 +245,7 @@ vshTableSafeEncode(const char *s, size_t *width)
                  * printable char according to the current locales.
                  */
                 if (!c_isprint(*p)) {
-                    snprintf(buf, HEX_ENCODE_LENGTH + 1, "\\x%02x", *p);
+                    g_snprintf(buf, HEX_ENCODE_LENGTH + 1, "\\x%02x", *p);
                     buf += HEX_ENCODE_LENGTH;
                     *width += HEX_ENCODE_LENGTH;
                 } else {
@@ -255,7 +255,7 @@ vshTableSafeEncode(const char *s, size_t *width)
             } else if (!iswprint(wc)) {
                 size_t i;
                 for (i = 0; i < len; i++) {
-                    snprintf(buf, HEX_ENCODE_LENGTH + 1, "\\x%02x", p[i]);
+                    g_snprintf(buf, HEX_ENCODE_LENGTH + 1, "\\x%02x", p[i]);
                     buf += HEX_ENCODE_LENGTH;
                     *width += HEX_ENCODE_LENGTH;
                 }
diff --git a/tools/vsh.c b/tools/vsh.c
index d4a16acc03..b5de06f26b 100644
--- a/tools/vsh.c
+++ b/tools/vsh.c
@@ -719,24 +719,24 @@ vshCmddefHelp(vshControl *ctl, const vshCmdDef *def)
         for (opt = def->opts; opt->name; opt++) {
             switch (opt->type) {
             case VSH_OT_BOOL:
-                snprintf(buf, sizeof(buf), "--%s", opt->name);
+                g_snprintf(buf, sizeof(buf), "--%s", opt->name);
                 break;
             case VSH_OT_INT:
-                snprintf(buf, sizeof(buf),
-                         (opt->flags & VSH_OFLAG_REQ) ? _("[--%s] <number>")
-                         : _("--%s <number>"), opt->name);
+                g_snprintf(buf, sizeof(buf),
+                           (opt->flags & VSH_OFLAG_REQ) ? _("[--%s] <number>")
+                           : _("--%s <number>"), opt->name);
                 break;
             case VSH_OT_STRING:
-                snprintf(buf, sizeof(buf), _("--%s <string>"), opt->name);
+                g_snprintf(buf, sizeof(buf), _("--%s <string>"), opt->name);
                 break;
             case VSH_OT_DATA:
-                snprintf(buf, sizeof(buf), _("[--%s] <string>"),
-                         opt->name);
+                g_snprintf(buf, sizeof(buf), _("[--%s] <string>"),
+                           opt->name);
                 break;
             case VSH_OT_ARGV:
-                snprintf(buf, sizeof(buf),
-                         shortopt ? _("[--%s] <string>") : _("<%s>"),
-                         opt->name);
+                g_snprintf(buf, sizeof(buf),
+                           shortopt ? _("[--%s] <string>") : _("<%s>"),
+                           opt->name);
                 break;
             case VSH_OT_ALIAS:
                 continue;
@@ -2690,7 +2690,7 @@ vshReadlineOptionsGenerator(const char *text,
 
         name_len = strlen(name);
         ret[ret_size] = vshMalloc(NULL, name_len + 3);
-        snprintf(ret[ret_size], name_len + 3,  "--%s", name);
+        g_snprintf(ret[ret_size], name_len + 3,  "--%s", name);
         ret_size++;
         /* Terminate the string list properly. */
         ret[ret_size] = NULL;
diff --git a/tools/wireshark/src/packet-libvirt.c b/tools/wireshark/src/packet-libvirt.c
index 7096e72e67..20b7a3ec81 100644
--- a/tools/wireshark/src/packet-libvirt.c
+++ b/tools/wireshark/src/packet-libvirt.c
@@ -169,7 +169,7 @@ format_xdr_bytes(guint8 *bytes, guint32 length)
     for (i = 0; i < length; i++) {
         /* We know that buf has enough size to contain
            2 * length + '\0' characters. */
-        snprintf(buf, 2*(length - i) + 1, "%02x", bytes[i]);
+        g_snprintf(buf, 2*(length - i) + 1, "%02x", bytes[i]);
         buf += 2;
     }
     return buf - length*2;