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/*
libminuid - minimalistic globally unique IDs
Copyright (C) 2022 Tibor 'Igor2' Palinkas
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 31 Milk Street, # 960789 Boston, MA 02196 USA
Project page: http://repo.hu/projects/libminuid
Source code: svn://repo.hu/libminuid/trunk
Author: emailto: libminuid [at] igor2.repo.hu
*/
#include <stdio.h>
#include "libminuid.h"
static int help(const char *prg)
{
printf("minuid - command line utility for globally unique IDs\n");
printf("Usage: %s cmd\n", prg);
printf("cmd is one of:\n");
printf(" help this help screen\n");
printf(" gen generate UIDs on stdout\n");
printf("\n");
return 0;
}
static int gen(void)
{
minuid_session_t sess;
if (minuid_init(&sess) != 0) {
fprintf(stderr, "minuid_init() failed\n");
return 1;
}
for(;;) {
minuid_bin_t bin;
minuid_str_t txt;
if (minuid_gen(&sess, bin) != 0) {
fprintf(stderr, "minuid_gen() failed\n");
return 1;
}
if (minuid_bin2str(txt, bin) != 0) {
fprintf(stderr, "minuid_bin2str() failed\n");
return 1;
}
printf("%s\n", txt);
}
return 0;
}
int main(int argc, char *argv[])
{
char *cmd = argv[1];
if (cmd == NULL) {
fprintf(stderr, "need an argument; try --help\n");
return 1;
}
while(*cmd == '-') cmd++;
switch(*cmd) {
case 'h': return help(argv[0]);
case 'g': return gen();
}
fprintf(stderr, "Unknown argument: %s; try --help\n", argv[1]);
return 1;
}
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