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More documentation updates, and minor fixes to make things sync

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up with the docs.
 -Erik
This commit is contained in:
Erik Andersen
2000-04-15 16:34:54 +00:00
parent 95c1c1e05f
commit 5e1189e187
27 changed files with 968 additions and 238 deletions
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19
miscutils/makedevs.c
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@@ -17,10 +17,18 @@
#include <sys/stat.h>
static const char makedevs_usage[] =
"makedevs 0.01 -- Create an entire range of device files\n\n"
"\tmakedevs /dev/ttyS c 4 64 0 63 (ttyS0-ttyS63)\n"
"\tmakedevs /dev/hda b 3 0 0 8 s (hda,hda1-hda8)\n";
"makedevs NAME TYPE MAJOR MINOR FIRST LAST [s]\n\n"
"Creates a range of block or character special files\n\n"
"TYPEs include:\n"
"\tb:\tMake a block (buffered) device.\n"
"\tc or u:\tMake a character (un-buffered) device.\n"
"\tp:\tMake a named pipe. MAJOR and MINOR are ignored for named pipes.\n\n"
"FIRST specifies the number appended to NAME to create the first device.\n"
"LAST specifies the number of the last item that should be created.\n"
"If 's' is the last argument, the base device is created as well.\n\n"
"For example:\n"
"\tmakedevs /dev/ttyS c 4 66 2 63 -> ttyS2-ttyS63\n"
"\tmakedevs /dev/hda b 3 0 0 8 s -> hda,hda1-hda8\n";
int makedevs_main(int argc, char **argv)
{
@@ -38,6 +46,9 @@ int makedevs_main(int argc, char **argv)
char devname[255];
char buf[255];
if (argc < 7 || *argv[1]=='-')
usage(makedevs_usage);
switch (type[0]) {
case 'c':
mode = S_IFCHR;

15
miscutils/mt.c
View File

@@ -4,7 +4,8 @@
#include <sys/mtio.h>
#include <sys/fcntl.h>
static const char mt_usage[] = "mt [-f device] opcode value\n";
static const char mt_usage[] = "mt [-f device] opcode value\n\n"
"Control magnetic tape drive operation\n";
struct mt_opcodes {
char *name;
@@ -56,6 +57,10 @@ extern int mt_main(int argc, char **argv)
const struct mt_opcodes *code = opcodes;
struct mtop op;
int fd;
if ((argc != 2 && argc != 3) || **(argv + 1) == '-') {
usage(mt_usage);
}
if (strcmp(argv[1], "-f") == 0) {
if (argc < 4) {
@@ -74,7 +79,7 @@ extern int mt_main(int argc, char **argv)
if (code->name == 0) {
fprintf(stderr, "mt: unrecognized opcode %s.\n", argv[1]);
return (FALSE);
exit (FALSE);
}
op.mt_op = code->value;
@@ -85,13 +90,13 @@ extern int mt_main(int argc, char **argv)
if ((fd = open(file, O_RDONLY, 0)) < 0) {
perror(file);
return (FALSE);
exit (FALSE);
}
if (ioctl(fd, MTIOCTOP, &op) != 0) {
perror(file);
return (FALSE);
exit (FALSE);
}
return (TRUE);
exit (TRUE);
}