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o Update initattr to add magic numbers and version number

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This commit is contained in:
Robert Watson 2000-04-19 20:13:34 +00:00
parent 747b0fa36c
commit 7036b7cd31
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=59401
1 changed files with 100 additions and 36 deletions
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136
usr.sbin/extattrctl/extattrctl.c
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@ -39,6 +39,9 @@
#include <string.h>
#include <unistd.h>
extern char *optarg;
extern int optind;
void
usage(void)
{
@ -47,68 +50,129 @@ usage(void)
"usage:\n"
" extattrctl start [path]\n"
" extattrctl stop [path]\n"
" extattrctl initattr [attrsize] [attrfile]\n"
" extattrctl initattr [-p] [-r [kroa]] [-w [kroa]] [attrsize] "
"[attrfile]\n"
" extattrctl enable [path] [attrname] [attrfile]\n"
" extattrctl disable [path] [attrname]\n");
exit(-1);
}
/*
* Return a level, or -1
*/
int
extattr_level_from_string(char *string)
{
if (strlen(string) != 1)
return (-1);
switch(string[0]) {
case 'k':
case 'K':
return (UFS_EXTATTR_PERM_KERNEL);
case 'r':
case 'R':
return (UFS_EXTATTR_PERM_ROOT);
case 'o':
case 'O':
return (UFS_EXTATTR_PERM_OWNER);
case 'a':
case 'A':
return (UFS_EXTATTR_PERM_ANYONE);
default:
return (-1);
}
}
int
initattr(int argc, char *argv[])
{
struct ufs_extattr_fileheader uef;
int initattr_pflag = 0;
int initattr_rlevel = UFS_EXTATTR_PERM_OWNER;
int initattr_wlevel = UFS_EXTATTR_PERM_OWNER;
int ch, i, error;
while ((ch = getopt(argc, argv, "prw")) != -1)
switch (ch) {
case 'p':
initattr_pflag = 1;
break;
case 'r':
initattr_rlevel = extattr_level_from_string(optarg);
if (initattr_rlevel == -1)
usage();
break;
case 'w':
initattr_wlevel = extattr_level_from_string(optarg);
if (initattr_wlevel == -1)
usage();
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc != 2)
usage();
error = 0;
if ((i = open(argv[1], O_CREAT | O_EXCL | O_WRONLY, 0600)) != -1) {
uef.uef_magic = UFS_EXTATTR_MAGIC;
uef.uef_version = UFS_EXTATTR_VERSION;
uef.uef_write_perm = initattr_wlevel;
uef.uef_read_perm = initattr_rlevel;
uef.uef_size = atoi(argv[0]);
if (write(i, &uef, sizeof(uef)) == -1)
error = -1;
else if (initattr_pflag) {
}
}
if (i == -1 || error == -1) {
perror("argv[1]");
return (-1);
}
return (0);
}
int
main(int argc, char *argv[])
{
struct ufs_extattr_fileheader uef;
int error = 0, i;
int error = 0;
if (argc < 2) {
if (argc < 2)
usage();
return(-1);
}
if (!strcmp(argv[1], "start")) {
if (argc != 3) {
if (argc != 3)
usage();
return(-1);
}
error = extattrctl(argv[2], UFS_EXTATTR_CMD_START, 0, 0);
} else if (!strcmp(argv[1], "stop")) {
if (argc != 3) {
if (argc != 3)
usage();
return(-1);
}
error = extattrctl(argv[2], UFS_EXTATTR_CMD_STOP, 0, 0);
} else if (!strcmp(argv[1], "enable")) {
if (argc != 5) {
if (argc != 5)
usage();
return(-1);
}
error = extattrctl(argv[2], UFS_EXTATTR_CMD_ENABLE, argv[3],
argv[4]);
} else if (!strcmp(argv[1], "disable")) {
if (argc != 4) {
if (argc != 4)
usage();
return(-1);
}
error = extattrctl(argv[2], UFS_EXTATTR_CMD_DISABLE, argv[3],
NULL);
} else if (!strcmp(argv[1], "initattr")) {
if (argc != 4) {
usage();
return(-1);
}
if ((i = open(argv[3], O_CREAT | O_EXCL | O_WRONLY, 0600)) !=
-1) {
uef.uef_write_perm = UFS_EXTATTR_PERM_OWNER;
uef.uef_read_perm = UFS_EXTATTR_PERM_ANYONE;
uef.uef_size = atoi(argv[2]);
if (write(i, &uef, sizeof(uef)) == -1) {
error = -1;
} else
error = close(i);
} else
error = -1;
} else {
argc -= 2;
argv += 2;
error = initattr(argc, argv);
} else
usage();
return(-1);
}
if (error)
perror(argv[1]);