/*
* This is a simple kernel command line parsing function: it parses
* the command line, and fills in the arguments/environment to init
* as appropriate. Any cmd-line option is taken to be an environment
* variable if it contains the character '='.
*
* This routine also checks for options meant for the kernel.
* These options are not given to init - they are for internal kernel use only.
*/
static void __init parse_options(char *line)
{
char *next;
int args, envs;
if (!*line)
return;
args = 0;
envs = 1; /* TERM is set to 'linux' by default */
next = line;
while ((line = next) != NULL) {
if ((next = strchr(line,' ')) != NULL)
*next++ = 0;
/*
* check for kernel options first..
*/
if (!strcmp(line,"ro")) {
root_mountflags |= MS_RDONLY;
continue;
}
if (!strcmp(line,"rw")) {
root_mountflags &= ~MS_RDONLY;
continue;
}
if (!strcmp(line,"debug")) {
console_loglevel = 10;
continue;
}
if (!strncmp(line,"init=",5)) {
line += 5;
execute_command = line;
/* In case LILO is going to boot us with default command line,
* it prepends "auto" before the whole cmdline which makes
* the shell think it should execute a script with such name.
* So we ignore all arguments entered _before_ init=... [MJ]
*/
args = 0;
continue;
}
if (checksetup(line))
continue;
/*
* Then check if it's an environment variable or
* an option.
*/
if (strchr(line,'=')) {
if (envs >= MAX_INIT_ENVS)
break;
envp_init[++envs] = line;
} else {
if (args >= MAX_INIT_ARGS)
break;
argv_init[++args] = line;
}
}
argv_init[args+1] = NULL;
envp_init[envs+1] = NULL;
}
/*
* This is a simple kernel command line parsing function: it parses
* the command line, and fills in the arguments/environment to init
* as appropriate. Any cmd-line option is taken to be an environment
* variable if it contains the character '='.
*
* This routine also checks for options meant for the kernel.
* These options are not given to init - they are for internal kernel use only.
*/
static void __init parse_options(char *line)
{
char *next,*quote;
int args, envs;
if (!*line)
return;
args = 0;
envs = 1; /* TERM is set to 'linux' by default */
next = line;
while ((line = next) != NULL) {
quote = strchr(line,'"');
next = strchr(line, ' ');
while (next != NULL && quote != NULL && quote < next) {
/* we found a left quote before the next blank
* now we have to find the matching right quote
*/
next = strchr(quote+1, '"');
if (next != NULL) {
quote = strchr(next+1, '"');
next = strchr(next+1, ' ');
}
}
if (next != NULL)
*next++ = 0;
if (!strncmp(line,"init=",5)) {
line += 5;
execute_command = line;
/* In case LILO is going to boot us with default command line,
* it prepends "auto" before the whole cmdline which makes
* the shell think it should execute a script with such name.
* So we ignore all arguments entered _before_ init=... [MJ]
*/
args = 0;
continue;
}
if (checksetup(line))
continue;
/*
* Then check if it's an environment variable or
* an option.
*/
if (strchr(line,'=')) {
if (envs >= MAX_INIT_ENVS)
break;
envp_init[++envs] = line;
} else {
if (args >= MAX_INIT_ARGS)
break;
if (*line)
argv_init[++args] = line;
}
}
argv_init[args+1] = NULL;
envp_init[envs+1] = NULL;
}
/*
* This is a simple kernel command line parsing function: it parses
* the command line, and fills in the arguments/environment to init
* as appropriate. Any cmd-line option is taken to be an environment
* variable if it contains the character '='.
*
*
* This routine also checks for options meant for the kernel.
* These options are not given to init - they are for internal kernel use only.
*/
static void parse_options(char *line)
{
char *next;
int args, envs;
if (!*line)
return;
args = 0;
envs = 1; /* TERM is set to 'linux' by default */
next = line;
#ifdef CONFIG_OSFMACH3
if (single_user) {
if (args < MAX_INIT_ARGS)
argv_init[++args] = "single";
}
#endif /* CONFIG_OSFMACH3 */
while ((line = next) != NULL) {
if ((next = strchr(line,' ')) != NULL)
*next++ = 0;
/*
* check for kernel options first..
*/
if (!strncmp(line,"root=",5)) {
parse_root_dev(line+5);
continue;
}
#ifdef CONFIG_ROOT_NFS
if (!strncmp(line, "nfsroot=", 8)) {
int n;
line += 8;
ROOT_DEV = MKDEV(UNNAMED_MAJOR, 255);
if (line[0] == '/' || line[0] == ',' || (line[0] >= '0' && line[0] <= '9')) {
strncpy(nfs_root_name, line, sizeof(nfs_root_name));
nfs_root_name[sizeof(nfs_root_name)-1] = '\0';
continue;
}
n = strlen(line) + strlen(NFS_ROOT);
if (n >= sizeof(nfs_root_name))
line[sizeof(nfs_root_name) - strlen(NFS_ROOT) - 1] = '\0';
sprintf(nfs_root_name, NFS_ROOT, line);
continue;
}
if (!strncmp(line, "nfsaddrs=", 9)) {
line += 9;
strncpy(nfs_root_addrs, line, sizeof(nfs_root_addrs));
nfs_root_addrs[sizeof(nfs_root_addrs)-1] = '\0';
continue;
}
#endif
if (!strcmp(line,"ro")) {
root_mountflags |= MS_RDONLY;
continue;
}
if (!strcmp(line,"rw")) {
root_mountflags &= ~MS_RDONLY;
continue;
}
if (!strcmp(line,"debug")) {
console_loglevel = 10;
continue;
}
if (!strncmp(line,"init=",5)) {
line += 5;
execute_command = line;
continue;
}
if (checksetup(line))
continue;
#ifdef CONFIG_OSFMACH3
if (!strcmp(line, "mach_console")) {
extern int osfmach3_use_mach_console;
osfmach3_use_mach_console = 1;
continue;
}
#ifdef CONFIG_PMAC_CONSOLE
if (!strcmp(line, "regular_vc_colors")) {
extern int regular_vc_colors;
regular_vc_colors = 1;
continue;
}
#endif /* CONFIG_PMAC_CONSOLE */
#endif /* CONFIG_OSFMACH3 */
/*
* Then check if it's an environment variable or
* an option.
*/
if (strchr(line,'=')) {
if (envs >= MAX_INIT_ENVS)
break;
envp_init[++envs] = line;
} else {
if (args >= MAX_INIT_ARGS)
break;
argv_init[++args] = line;
}
}
argv_init[args+1] = NULL;
envp_init[envs+1] = NULL;
}