90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
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#include <linux/kernel.h>
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#include "nodelist.h"
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#include <linux/pagemap.h>
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#include <linux/crc32.h>
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#include "compr.h"
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//#include <errno.h>
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#include <string.h>
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extern struct cyg_fstab_entry jffs2_fste;
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MTAB_ENTRY(jffs2_mte,
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"/",
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"jffs2",
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NULL,
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0);
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#include "flash.h"
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extern int file_handle;
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extern int FLASH_SIZE;
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extern int flash_file_init(void);
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extern int jffs2_mount(cyg_fstab_entry * fste, cyg_mtab_entry * mte);
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extern int jffs2_open(cyg_mtab_entry * mte, cyg_dir dir, const char *name,
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int mode, cyg_file * file);
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extern int jffs2_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
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char buffer[1024];
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int jffs2_main()
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{
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int res;
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cyg_file file;
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struct CYG_UIO_TAG uio_s;
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struct CYG_IOVEC_TAG iovec;
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// res = flash_file_init();
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if (res != 0)
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goto out;
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//mount file system
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res = jffs2_mount(&jffs2_fste, &jffs2_mte);
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if (res < 0)
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{
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printf("jffs2_mount error!\n");
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goto out;
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}
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printf("jffs2 mount ok!\n");
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//read a file or dirs "src/dfs.c"
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//res = jffs2_open(&jffs2_mte, 0, "dfs_uffs.c", O_RDWR, &file);
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//res = jffs2_open(&jffs2_mte, 0, "SConscript", O_RDWR, &file);
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// res = jffs2_open(&jffs2_mte, 0, "filesystems/devfs/console.c" , O_RDWR, &file);
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if (res != 0)
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{
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printf("jffs2_open file error: %d", res);
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goto out;
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}
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memset(buffer, 0, sizeof(buffer));
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uio_s.uio_iov = &iovec;
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uio_s.uio_iov->iov_base = buffer;
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uio_s.uio_iov->iov_len = 1024;
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uio_s.uio_iovcnt = 1; //must be 1
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//uio_s.uio_offset //not used...
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uio_s.uio_resid = uio_s.uio_iov->iov_len; //seem no use in ecos;
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//uio_s.uio_segflg = UIO_USERSPACE;
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//uio_s.uio_rw = ;
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res = jffs2_fo_read(&file, &uio_s);
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if (res != 0)
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{
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printf("jffs2_fo_read file error: %d", res);
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goto out;
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}
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printf("\n\n=====================================================================\n");
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printf("the uffs/dfs_uffs.c file content is:\n\n");
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printf("%s", buffer);
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out:
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#if defined (MSVC)
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printf("\n\npress any key to colose this console...\n");
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getch();
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#endif
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return 0;
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}
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