1: /*
2: ================================================================================
3: RPL/2 (R) version 4.0.23
4: Copyright (C) 1989-2011 Dr. BERTRAND Joël
5:
6: This file is part of RPL/2.
7:
8: RPL/2 is free software; you can redistribute it and/or modify it
9: under the terms of the CeCILL V2 License as published by the french
10: CEA, CNRS and INRIA.
11:
12: RPL/2 is distributed in the hope that it will be useful, but WITHOUT
13: ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14: FITNESS FOR A PARTICULAR PURPOSE. See the CeCILL V2 License
15: for more details.
16:
17: You should have received a copy of the CeCILL License
18: along with RPL/2. If not, write to info@cecill.info.
19: ================================================================================
20: */
21:
22:
23: #include "rpl.h"
24:
25:
26: int
27: valsprintf(unsigned char **strp, const char *fmt, va_list ap)
28: {
29: size_t bs;
30: size_t s;
31:
32: unsigned char *b = NULL;
33:
34: va_list cap;
35:
36: for(bs = 1024;; bs *= 2)
37: {
38: va_copy(cap, ap);
39:
40: if (b != NULL)
41: {
42: free(b);
43: }
44:
45: if ((b = malloc(sizeof(*b) * bs)) == NULL)
46: {
47: return -1;
48: }
49:
50: if (((int) (s = vsnprintf(b, bs, fmt, cap))) < 0)
51: {
52: free(b);
53: return -1;
54: }
55:
56: if (s < bs)
57: {
58: break;
59: }
60: }
61:
62: if (((*strp) = realloc(b, ((s = strlen(b)) + 1) * sizeof(*b))) == NULL)
63: {
64: free(b);
65: return -1;
66: }
67:
68: return s;
69: }
70:
71:
72: int
73: alsprintf(unsigned char **strp, const char *fmt, ...)
74: {
75: int done;
76: va_list arg;
77:
78: va_start(arg, fmt);
79: done = valsprintf(strp, fmt, arg);
80: va_end(arg);
81:
82: return(done);
83: }
84:
85: // vim: ts=4
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