1: /*
2: ================================================================================
3: RPL/2 (R) version 4.0.10
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 <stdio.h>
24: #include <stdlib.h>
25: #include <stdarg.h>
26: #include <string.h>
27: #include <strings.h>
28:
29: int
30: vasprintf(char **strp, const char *fmt, va_list ap)
31: {
32: size_t bs;
33: size_t s;
34: char *b = NULL;
35:
36: for(bs = 1024;; bs *= 2)
37: {
38: if (b != NULL)
39: {
40: free(b);
41: }
42:
43: if ((b = malloc(sizeof(*b) * bs)) == NULL)
44: {
45: return -1;
46: }
47:
48: if (((int) (s = vsnprintf(b, bs, fmt, ap))) < 0)
49: {
50: free(b);
51: return -1;
52: }
53:
54: if (s < bs)
55: {
56: break;
57: }
58: }
59:
60: if (((*strp) = realloc(b, ((s = strlen(b)) + 1) * sizeof(*b)))
61: == NULL)
62: {
63: free(b);
64: return -1;
65: }
66:
67: return s;
68: }
69:
70:
71: int
72: asprintf(char **strp, const char *fmt, ...)
73: {
74: int done;
75: va_list arg;
76:
77: va_start(arg, fmt);
78: done = vasprintf(strp, fmt, arg);
79: va_end(arg);
80:
81: return(done);
82: }
83:
84: // vim: ts=4
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