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40 lines
1,019 B
C
40 lines
1,019 B
C
/* common.h - Common functions */
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# define MSDOS_FAT12 4084 /* maximum number of clusters in a 12 bit FAT */
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#include "version.h"
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#ifndef _COMMON_H
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#define _COMMON_H
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void die(char *msg,...) __attribute((noreturn));
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/* Displays a prinf-style message and terminates the program. */
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void pdie(char *msg,...) __attribute((noreturn));
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/* Like die, but appends an error message according to the state of errno. */
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void *alloc(int size);
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/* mallocs SIZE bytes and returns a pointer to the data. Terminates the program
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if malloc fails. */
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void *qalloc(void **root,int size);
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/* Like alloc, but registers the data area in a list described by ROOT. */
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void qfree(void **root);
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/* Deallocates all qalloc'ed data areas described by ROOT. */
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//int min(int a,int b);
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/* Returns the smaller integer value of a and b. */
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char get_key(char *valid,char *prompt);
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/* Displays PROMPT and waits for user input. Only characters in VALID are
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accepted. Terminates the program on EOF. Returns the character. */
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#endif
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