44 lines
1.0 KiB
C
Executable File
44 lines
1.0 KiB
C
Executable File
#include <linux/fs.h>
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#include <linux/init.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/module.h>
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static int cmdline_proc_show(struct seq_file *m, void *v)
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{
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char *temp_saved_command_line, *temp;
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int i;
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temp_saved_command_line = kmalloc(strlen(saved_command_line)+1, GFP_KERNEL);
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memcpy(temp_saved_command_line, saved_command_line, strlen(saved_command_line)+1);
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temp=strstr(temp_saved_command_line, "array");
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if (temp!=NULL) {
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for(i=0;i<20;i++) *(temp+i)='*';
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}
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seq_printf(m, "%s\n", temp_saved_command_line);
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kfree(temp_saved_command_line);
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return 0;
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}
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static int cmdline_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, cmdline_proc_show, NULL);
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}
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static const struct file_operations cmdline_proc_fops = {
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.open = cmdline_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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static int __init proc_cmdline_init(void)
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{
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proc_create("cmdline", 0, NULL, &cmdline_proc_fops);
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return 0;
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}
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module_init(proc_cmdline_init);
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