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seq.c
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C/C++ Source or Header
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1990-05-08
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865b
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52 lines
/*
* SEQ.C
*
* $Header: Beta:src/uucp/src/lib/RCS/seq.c,v 1.1 90/02/02 12:08:40 dillon Exp Locker: dillon $
*
* (C) Copyright 1989-1990 by Matthew Dillon, All Rights Reserved.
*
* Returns a unique sequence number
*/
#include <stdio.h>
#include "config.h"
Prototype int GetSequence(int);
int
GetSequence(bump)
int bump;
{
char *seqLockFile = "seq";
FILE *fp;
char *fileName = MakeConfigPath(UULIB, "seq");
int seq;
char buf[32];
LockFile(seqLockFile);
fp = fopen(fileName, "r");
if (fp) {
fgets(buf, 32, fp);
seq = atoi(buf);
fclose(fp);
} else {
perror(fileName);
seq = -1;
}
if (bump && seq >= 0) {
fp = fopen(fileName, "w");
if (fp) {
fprintf(fp,"%d", seq + bump);
fclose(fp);
} else {
perror(fileName);
seq = -1;
}
}
UnLockFile(seqLockFile);
return(seq);
}