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1 | /* |
2 | * This file is part of DisOrder |
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3 | * Copyright (C) 2004-2008 Richard Kettlewell |
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4 | * |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 2 of the License, or |
8 | * (at your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, but |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | * General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
18 | * USA |
19 | */ |
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20 | /** @file lib/asprintf.c @brief printf() workalikes */ |
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21 | |
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22 | #include "common.h" |
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23 | |
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24 | #include <stdarg.h> |
25 | #include <stddef.h> |
26 | #include <errno.h> |
27 | |
28 | #include "printf.h" |
29 | #include "sink.h" |
30 | #include "mem.h" |
31 | #include "vector.h" |
32 | #include "log.h" |
33 | |
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34 | /** @brief vasprintf() workalike without encoding errors |
35 | * |
36 | * This acts like vasprintf() except that it does not throw an error |
37 | * if you use a string outside the current locale's encoding rules, |
38 | * and it uses the memory allocation calls from @ref mem.h. |
39 | */ |
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40 | int byte_vasprintf(char **ptrp, |
41 | const char *fmt, |
42 | va_list ap) { |
43 | struct dynstr d; |
44 | int n; |
45 | |
46 | dynstr_init(&d); |
47 | if((n = byte_vsinkprintf(sink_dynstr(&d), fmt, ap)) >= 0) { |
48 | dynstr_terminate(&d); |
49 | *ptrp = d.vec; |
50 | } |
51 | return n; |
52 | } |
53 | |
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54 | /** @brief asprintf() workalike without encoding errors |
55 | * |
56 | * This acts like asprintf() except that it does not throw an error |
57 | * if you use a string outside the current locale's encoding rules, |
58 | * and it uses the memory allocation calls from @ref mem.h. |
59 | */ |
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60 | int byte_asprintf(char **ptrp, |
61 | const char *fmt, |
62 | ...) { |
63 | int n; |
64 | va_list ap; |
65 | |
66 | va_start(ap, fmt); |
67 | n = byte_vasprintf(ptrp, fmt, ap); |
68 | va_end(ap); |
69 | return n; |
70 | } |
71 | |
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72 | /** @brief asprintf() workalike without encoding errors |
73 | * |
74 | * This acts like asprintf() except that it does not throw an error if |
75 | * you use a string outside the current locale's encoding rules; it |
76 | * uses the memory allocation calls from @ref mem.h; and it terminates |
77 | * the program on error. |
78 | */ |
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79 | int byte_xasprintf(char **ptrp, |
80 | const char *fmt, |
81 | ...) { |
82 | int n; |
83 | va_list ap; |
84 | |
85 | va_start(ap, fmt); |
86 | n = byte_xvasprintf(ptrp, fmt, ap); |
87 | va_end(ap); |
88 | return n; |
89 | } |
90 | |
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91 | /** @brief vasprintf() workalike without encoding errors |
92 | * |
93 | * This acts like vasprintf() except that it does not throw an error |
94 | * if you use a string outside the current locale's encoding rules; it |
95 | * uses the memory allocation calls from @ref mem.h; and it terminates |
96 | * the program on error. |
97 | */ |
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98 | int byte_xvasprintf(char **ptrp, |
99 | const char *fmt, |
100 | va_list ap) { |
101 | int n; |
102 | |
103 | if((n = byte_vasprintf(ptrp, fmt, ap)) < 0) |
104 | fatal(errno, "error calling byte_vasprintf"); |
105 | return n; |
106 | } |
107 | |
108 | /* |
109 | Local Variables: |
110 | c-basic-offset:2 |
111 | comment-column:40 |
112 | End: |
113 | */ |