Fixed findings

List of Findings

Error: GCC_ANALYZER_WARNING (CWE-688): [#def1]
util-linux-2.43.devel/agetty-cmd/issuefile.c: scope_hint: In function ‘issuefile_read_stream.part.0’
util-linux-2.43.devel/agetty-cmd/issuefile.c:256:25: warning[-Wanalyzer-possible-null-argument]: use of possibly-NULL ‘*ie.output’ where non-null expected
util-linux-2.43.devel/agetty-cmd/issuefile.c:9: included_from: Included from here.
/usr/include/stdio.h:616:12: note: argument 2 of ‘putc’ must be non-null
#  254|   			output_special_char(ie, fgetc(f), op, tp, f);
#  255|   		else
#  256|-> 			putc(c, ie->output);
#  257|   	}
#  258|   

Error: GCC_ANALYZER_WARNING (CWE-688): [#def2]
util-linux-2.43.devel/agetty-cmd/issuefile.c: scope_hint: In function ‘dump_iface_all’
util-linux-2.43.devel/agetty-cmd/issuefile.c:610:25: warning[-Wanalyzer-possible-null-argument]: use of possibly-NULL ‘*ie.output’ where non-null expected
util-linux-2.43.devel/include/netlink.h:28: included_from: Included from here.
util-linux-2.43.devel/include/netaddrq.h:17: included_from: Included from here.
util-linux-2.43.devel/agetty-cmd/agetty.h:34: included_from: Included from here.
util-linux-2.43.devel/agetty-cmd/issuefile.c:19: included_from: Included from here.
util-linux-2.43.devel/include/netaddrq.h:62:46: note: in expansion of macro ‘list_for_each’
util-linux-2.43.devel/agetty-cmd/issuefile.c:852:17: note: in expansion of macro ‘list_for_each_netaddrq_iface’
/usr/include/stdio.h:364:12: note: argument 1 of ‘fprintf’ must be non-null
#  608|   		if (first)
#  609|   		{
#  610|-> 			fprintf(ie->output, "%s: ", ifaceq->ifname);
#  611|   			first = false;
#  612|   		}

Error: GCC_ANALYZER_WARNING (CWE-688): [#def3]
util-linux-2.43.devel/agetty-cmd/issuefile.c:622:25: warning[-Wanalyzer-possible-null-argument]: use of possibly-NULL ‘*ie.output’ where non-null expected
util-linux-2.43.devel/include/netaddrq.h:62:46: note: in expansion of macro ‘list_for_each’
util-linux-2.43.devel/agetty-cmd/issuefile.c:852:17: note: in expansion of macro ‘list_for_each_netaddrq_iface’
util-linux-2.43.devel/agetty-cmd/issuefile.c:605:9: note: in expansion of macro ‘list_for_each’
util-linux-2.43.devel/agetty-cmd/issuefile.c:617:9: note: in expansion of macro ‘list_for_each’
/usr/include/stdio.h:364:12: note: argument 1 of ‘fprintf’ must be non-null
#  620|   		if (first)
#  621|   		{
#  622|-> 			fprintf(ie->output, "%s: ", ifaceq->ifname);
#  623|   			first = false;
#  624|   		}

Error: GCC_ANALYZER_WARNING (CWE-688): [#def4]
util-linux-2.43.devel/agetty-cmd/issuefile.c: scope_hint: In function ‘output_special_char’
util-linux-2.43.devel/agetty-cmd/issuefile.c:682:25: warning[-Wanalyzer-possible-null-argument]: use of possibly-NULL ‘*ie.output’ where non-null expected
<built-in>: note: argument 2 of ‘__builtin_fputc’ must be non-null
#  680|   			}
#  681|   		} else
#  682|-> 			fputs("\033", ie->output);
#  683|   		break;
#  684|   	}

Error: GCC_ANALYZER_WARNING (CWE-688): [#def5]
util-linux-2.43.devel/agetty-cmd/issuefile.c:757:17: warning[-Wanalyzer-possible-null-argument]: use of possibly-NULL ‘*ie.output’ where non-null expected
<built-in>: note: argument 2 of ‘__builtin_fputs’ must be non-null
#  755|   	}
#  756|   	case 'l':
#  757|-> 		fprintf (ie->output, "%s", op->tty);
#  758|   		break;
#  759|   	case 'b':

Error: GCC_ANALYZER_WARNING (CWE-688): [#def6]
util-linux-2.43.devel/agetty-cmd/issuefile.c:862:17: warning[-Wanalyzer-possible-null-argument]: use of possibly-NULL ‘*ie.output’ where non-null expected
/usr/include/stdio.h:616:12: note: argument 2 of ‘putc’ must be non-null
#  860|   #endif /* USE_NETLINK */
#  861|   	default:
#  862|-> 		putc(c, ie->output);
#  863|   		break;
#  864|   	}

Error: GCC_ANALYZER_WARNING (CWE-476): [#def7]
util-linux-2.43.devel/disk-utils/cfdisk.c: scope_hint: In function ‘ui_create_label’
util-linux-2.43.devel/disk-utils/cfdisk.c:2175:30: warning[-Wanalyzer-null-dereference]: dereference of NULL ‘xcalloc(fdisk_get_nlabels(*cf.cxt) + 1, 32) + i * 32’
util-linux-2.43.devel/include/debug.h:118:17: note: in expansion of macro ‘__UL_INIT_DEBUG_FROM_STRING’
util-linux-2.43.devel/disk-utils/cfdisk.c:270:9: note: in expansion of macro ‘__UL_INIT_DEBUG_FROM_ENV’
util-linux-2.43.devel/include/debug.h:118:17: note: in expansion of macro ‘__UL_INIT_DEBUG_FROM_STRING’
util-linux-2.43.devel/disk-utils/cfdisk.c:270:9: note: in expansion of macro ‘__UL_INIT_DEBUG_FROM_ENV’
util-linux-2.43.devel/include/debug.h:82:9: note: in expansion of macro ‘__UL_DBG_CALL’
util-linux-2.43.devel/include/debug.h:88:9: note: in expansion of macro ‘__UL_DBG_OBJ’
util-linux-2.43.devel/disk-utils/cfdisk.c:266:25: note: in expansion of macro ‘__UL_DBG’
util-linux-2.43.devel/disk-utils/cfdisk.c:2163:9: note: in expansion of macro ‘DBG’
# 2173|   		    fdisk_label_get_type(lb) == FDISK_DISKLABEL_BSD)
# 2174|   			continue;
# 2175|-> 		cm[i++].name = fdisk_label_get_name(lb);
# 2176|   	}
# 2177|   

Error: GCC_ANALYZER_WARNING (CWE-476): [#def8]
util-linux-2.43.devel/disk-utils/fdformat.c: scope_hint: In function ‘verify_disk’
util-linux-2.43.devel/disk-utils/fdformat.c:129:49: warning[-Wanalyzer-possible-null-dereference]: dereference of possibly-NULL ‘xmalloc(track_size) + count’
util-linux-2.43.devel/disk-utils/fdformat.c:28: included_from: Included from here.
#  127|   				}
#  128|   				for (count = 0; count < track_size; count++)
#  129|-> 					if (data[count] != FD_FILL_BYTE) {
#  130|   						if (retries_left) {
#  131|   							format_begin(ctrl);

Error: GCC_ANALYZER_WARNING (CWE-476): [#def9]
util-linux-2.43.devel/misc-utils/cal.c: scope_hint: In function ‘monthly’
util-linux-2.43.devel/misc-utils/cal.c:1096:28: warning[-Wanalyzer-null-dereference]: dereference of NULL ‘xcalloc((long unsigned int)*ctl.months_in_row, 208) + (sizetype)i * 208’
util-linux-2.43.devel/misc-utils/cal.c:76: included_from: Included from here.
# 1094|   
# 1095|   	for (i = 0; i < ctl->months_in_row - 1; i++)
# 1096|-> 		ms[i].next = &ms[i + 1];
# 1097|   
# 1098|   	rows = (ctl->num_months - 1) / ctl->months_in_row;

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