1: /*
2: ================================================================================
3: RPL/2 (R) version 4.0.14
4: Copyright (C) 1989-2010 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: #include <stdarg.h>
25:
26:
27: int
28: valsprintf(unsigned char **strp, const char *fmt, va_list ap)
29: {
30: size_t bs;
31: size_t s;
32:
33: unsigned char *b = NULL;
34:
35: va_list cap;
36:
37: for(bs = 1024;; bs *= 2)
38: {
39: va_copy(cap, ap);
40:
41: if (b != NULL)
42: {
43: free(b);
44: }
45:
46: if ((b = malloc(sizeof(*b) * bs)) == NULL)
47: {
48: return -1;
49: }
50:
51: if (((int) (s = vsnprintf(b, bs, fmt, cap))) < 0)
52: {
53: free(b);
54: return -1;
55: }
56:
57: if (s < bs)
58: {
59: break;
60: }
61: }
62:
63: if (((*strp) = realloc(b, ((s = strlen(b)) + 1) * sizeof(*b))) == NULL)
64: {
65: free(b);
66: return -1;
67: }
68:
69: return s;
70: }
71:
72:
73: int
74: alsprintf(unsigned char **strp, const char *fmt, ...)
75: {
76: int done;
77: va_list arg;
78:
79: va_start(arg, fmt);
80: done = valsprintf(strp, fmt, arg);
81: va_end(arg);
82:
83: return(done);
84: }
85:
86: // vim: ts=4
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