52 lines
1.0 KiB
C
52 lines
1.0 KiB
C
#include <kernel/fs/smemfs.h>
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#include <kernel/util/atomic.h>
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/* smemfs_get_name() - Dump the name of a file (sync) */
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int smemfs_USB2_get_name(void *inode, char *buf, size_t count)
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{
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extern struct smemfs_USB2_superblock smemfs_USB2_superblock;
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struct casio_smem_header_s *header;
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// Check error
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if (inode == NULL)
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return (-1);
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// Start atomic operation
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atomic_start();
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// Check root inode
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if (inode == smemfs_USB2_superblock.sector_table)
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{
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buf[0] = '/';
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buf[1] = '\0';
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atomic_stop();
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return (0);
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}
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// Check inode validity
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header = inode;
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if (header->info != CASIO_SMEM_HEADER_INFO_EXIST)
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{
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atomic_stop();
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return (-1);
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}
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// Get "real" name size
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count = count - 1;
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if (count > CASIO_SMEM_NAME_LENGHT)
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count = CASIO_SMEM_NAME_LENGHT;
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// Dump name
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// @note: The name is stored into Shift-JIS format
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int i = -1;
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while (++i < (int)count &&
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header->name[i] != 0x0000 &&
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header->name[i] != 0xffff)
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buf[i] = header->name[i];
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buf[i] = '\0';
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// Start atomic operation
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atomic_stop();
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return (0);
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}
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