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-rw-r--r--util-linux/fdformat.c183
1 files changed, 90 insertions, 93 deletions
diff --git a/util-linux/fdformat.c b/util-linux/fdformat.c
index d94c6a62b..930525848 100644
--- a/util-linux/fdformat.c
+++ b/util-linux/fdformat.c
@@ -52,107 +52,104 @@ struct format_descr {
52#define FDGETPRM _IOR(2, 0x04, struct floppy_struct) 52#define FDGETPRM _IOR(2, 0x04, struct floppy_struct)
53#define FD_FILL_BYTE 0xF6 /* format fill byte. */ 53#define FD_FILL_BYTE 0xF6 /* format fill byte. */
54 54
55 55static void print_and_flush(const char * __restrict format, ...)
56
57static void format_disk(int ctrl, char *name, struct floppy_struct *param)
58{ 56{
59 struct format_descr descr; 57 va_list arg;
60 int track;
61
62 printf("Formatting ... ");
63 fflush(stdout);
64 if (ioctl(ctrl,FDFMTBEG,NULL) < 0) {
65 bb_perror_msg_and_die("FDFMTBEG");
66 }
67 for (track = 0; track < param->track; track++)
68 {
69 descr.track = track;
70 descr.head = 0;
71 if (ioctl(ctrl,FDFMTTRK,(long) &descr) < 0) {
72 bb_perror_msg_and_die("FDFMTTRK");
73 }
74 58
75 printf("%3d\b\b\b",track); 59 va_start(arg, format);
76 fflush(stdout); 60 bb_vfprintf(stdout, format, arg);
77 if (param->head == 2) { 61 va_end(arg);
78 descr.head = 1; 62 bb_xfflush_stdout();
79 if (ioctl(ctrl,FDFMTTRK,(long) &descr) < 0) {
80 bb_perror_msg_and_die("FDFMTTRK");
81 }
82 }
83 }
84 if (ioctl(ctrl,FDFMTEND,NULL) < 0) {
85 bb_perror_msg_and_die("FDFMTEND");
86 }
87 printf("done\n");
88} 63}
89 64
90static void verify_disk(char *name, struct floppy_struct *param) 65static void bb_xioctl(int fd, int request, void *argp, const char *string)
91{ 66{
92 unsigned char *data; 67 if (ioctl (fd, request, argp) < 0) {
93 int fd,cyl_size,cyl,count,read_bytes; 68 bb_perror_msg_and_die(string);
94
95 cyl_size = param->sect*param->head*512;
96 data = xmalloc(cyl_size);
97 printf("Verifying ... ");
98 fflush(stdout);
99 fd = bb_xopen(name,O_RDONLY);
100 for (cyl = 0; cyl < param->track; cyl++)
101 {
102 printf("%3d\b\b\b",cyl);
103 fflush(stdout);
104 read_bytes = safe_read(fd,data,cyl_size);
105 if(read_bytes != cyl_size) {
106 if(read_bytes < 0) {
107 bb_perror_msg("Read: ");
108 }
109 bb_error_msg_and_die("Problem reading cylinder %d, "
110 "expected %d, read %d", cyl, cyl_size, read_bytes);
111 } 69 }
112 for (count = 0; count < cyl_size; count++)
113 if (data[count] != FD_FILL_BYTE) {
114 printf("bad data in cyl %d\nContinuing ... ",cyl);
115 fflush(stdout);
116 break;
117 }
118 }
119 printf("done\n");
120 close(fd);
121} 70}
122 71
123int fdformat_main(int argc,char **argv) 72int fdformat_main(int argc,char **argv)
124{ 73{
125 int ctrl; 74 int fd, n, cyl, read_bytes, verify;
126 int verify; 75 unsigned char *data;
127 struct stat st; 76 struct stat st;
128 struct floppy_struct param; 77 struct floppy_struct param;
129 78 struct format_descr descr;
130 if (argc < 2) { 79
131 bb_show_usage(); 80 if (argc < 2) {
132 } 81 bb_show_usage();
133 verify = !bb_getopt_ulflags(argc, argv, "n"); 82 }
134 argv += optind; 83 verify = !bb_getopt_ulflags(argc, argv, "n");
135 84 argv += optind;
136 if (stat(*argv,&st) < 0 || access(*argv,W_OK) < 0) { 85
137 bb_perror_msg_and_die(*argv); 86 /* R_OK is needed for verifying */
138 } 87 if (stat(*argv,&st) < 0 || access(*argv,W_OK | R_OK ) < 0) {
139 if (!S_ISBLK(st.st_mode)) { 88 bb_perror_msg_and_die(*argv);
140 bb_error_msg_and_die("%s: not a block device",*argv); 89 }
141 /* do not test major - perhaps this was an USB floppy */ 90 if (!S_ISBLK(st.st_mode)) {
142 } 91 bb_error_msg_and_die("%s: not a block device",*argv);
143 92 /* do not test major - perhaps this was an USB floppy */
144 ctrl = bb_xopen(*argv,O_WRONLY); 93 }
145 if (ioctl(ctrl,FDGETPRM,(long) &param) < 0) { 94
146 bb_perror_msg_and_die("Could not determine current format type"); 95
147 } 96 /* O_RDWR for formatting and verifying */
148 printf("%s-sided, %d tracks, %d sec/track. Total capacity %d kB.\n", 97 fd = bb_xopen(*argv,O_RDWR );
149 (param.head == 2) ? "Double" : "Single", 98
150 param.track, param.sect,param.size >> 1); 99 bb_xioctl(fd, FDGETPRM, &param, "FDGETPRM");/*original message was: "Could not determine current format type" */
151 format_disk(ctrl, *argv, &param); 100
152 close(ctrl); 101 print_and_flush("%s-sided, %d tracks, %d sec/track. Total capacity %d kB.\n",
153 102 (param.head == 2) ? "Double" : "Single",
154 if (verify) { 103 param.track, param.sect, param.size >> 1);
155 verify_disk(*argv, &param); 104
156 } 105 /* FORMAT */
157 return EXIT_SUCCESS; 106 print_and_flush("Formatting ... ", NULL);
107 bb_xioctl(fd, FDFMTBEG,NULL,"FDFMTBEG");
108
109 /* n == track */
110 for (n = 0; n < param.track; n++) {
111 descr.track = n;
112 for(descr.head=0, print_and_flush("%3d\b\b\b", n) ; descr.head < param.head; descr.head++){
113 bb_xioctl(fd,FDFMTTRK, &descr,"FDFMTTRK");
114 }
115 }
116 bb_xioctl(fd,FDFMTEND,NULL,"FDFMTEND");
117 print_and_flush("done\n", NULL);
118
119 /* VERIFY */
120 if(verify) {
121 /* n == cyl_size */
122 n = param.sect*param.head*512;
123
124 data = xmalloc(n);
125 print_and_flush("Verifying ... ", NULL);
126 for (cyl = 0; cyl < param.track; cyl++) {
127 print_and_flush("%3d\b\b\b", cyl);
128 if((read_bytes = safe_read(fd,data,n))!= n ) {
129 if(read_bytes < 0) {
130 bb_perror_msg("Read: ");
131 }
132 bb_error_msg_and_die("Problem reading cylinder %d, expected %d, read %d", cyl, n, read_bytes);
133 }
134 /* Check backwards so we don't need a counter */
135 while(--read_bytes>=0) {
136 if( data[read_bytes] != FD_FILL_BYTE) {
137 print_and_flush("bad data in cyl %d\nContinuing ... ",cyl);
138 }
139 }
140 }
141 /* There is no point in freeing blocks at the end of a program, because
142 all of the program's space is given back to the system when the process
143 terminates.*/
144#ifdef CONFIG_FEATURE_CLEAN_UP
145 free(data);
146#endif
147 print_and_flush("done\n", NULL);
148 }
149#ifdef CONFIG_FEATURE_CLEAN_UP
150 close(fd);
151#endif
152 /* Don't bother closing. Exit does
153 * that, so we can save a few bytes */
154 return EXIT_SUCCESS;
158} 155}
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