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| Rev 3403 | Rev 4691 | ||
|---|---|---|---|
| Line 34... | Line 34... | ||
| 34 | */ |
34 | */ |
| 35 | 35 | ||
| 36 | #include <stdarg.h> |
36 | #include <stdarg.h> |
| 37 | #include <stdio.h> |
37 | #include <stdio.h> |
| 38 | #include <stdlib.h> |
38 | #include <stdlib.h> |
| - | 39 | #include <string.h> |
|
| 39 | #include <io/printf_core.h> |
40 | #include <io/printf_core.h> |
| 40 | 41 | ||
| 41 | static int asprintf_prewrite(const char *str, size_t count, void *unused) |
42 | static int asprintf_str_write(const char *str, size_t count, void *unused) |
| 42 | { |
43 | { |
| 43 | return count; |
44 | return str_nlength(str, count); |
| - | 45 | } |
|
| - | 46 | ||
| - | 47 | static int asprintf_wstr_write(const wchar_t *str, size_t count, void *unused) |
|
| - | 48 | { |
|
| - | 49 | return wstr_nlength(str, count); |
|
| 44 | } |
50 | } |
| 45 | 51 | ||
| 46 | /** Allocate and print to string. |
52 | /** Allocate and print to string. |
| 47 | * |
53 | * |
| 48 | * @param strp Address of the pointer where to store the address of |
54 | * @param strp Address of the pointer where to store the address of |
| 49 | * the newly allocated string. |
55 | * the newly allocated string. |
| 50 | * @fmt Format strin. |
56 | * @fmt Format string. |
| - | 57 | * |
|
| - | 58 | * @return Number of characters printed or a negative error code. |
|
| 51 | * |
59 | * |
| 52 | * @return Number of characters printed or a negative error code. |
- | |
| 53 | */ |
60 | */ |
| 54 | int asprintf(char **strp, const char *fmt, ...) |
61 | int asprintf(char **strp, const char *fmt, ...) |
| 55 | { |
62 | { |
| 56 | struct printf_spec ps = { |
63 | struct printf_spec ps = { |
| 57 | asprintf_prewrite, |
64 | asprintf_str_write, |
| - | 65 | asprintf_wstr_write, |
|
| 58 | NULL |
66 | NULL |
| 59 | }; |
67 | }; |
| 60 | int ret; |
68 | |
| 61 | va_list args; |
69 | va_list args; |
| 62 | - | ||
| 63 | va_start(args, fmt); |
70 | va_start(args, fmt); |
| - | 71 | ||
| 64 | ret = printf_core(fmt, &ps, args); |
72 | int ret = printf_core(fmt, &ps, args); |
| 65 | va_end(args); |
73 | va_end(args); |
| - | 74 | ||
| 66 | if (ret > 0) { |
75 | if (ret > 0) { |
| 67 | *strp = malloc(ret + 20); |
76 | *strp = malloc(STR_BOUNDS(ret) + 1); |
| 68 | if (!*strp) |
77 | if (*strp == NULL) |
| 69 | return -1; |
78 | return -1; |
| - | 79 | ||
| 70 | va_start(args, fmt); |
80 | va_start(args, fmt); |
| 71 | vsprintf(*strp, fmt, args); |
81 | vsnprintf(*strp, STR_BOUNDS(ret) + 1, fmt, args); |
| 72 | va_end(args); |
82 | va_end(args); |
| 73 | } |
83 | } |
| 74 | 84 | ||
| 75 | return ret; |
85 | return ret; |
| 76 | } |
86 | } |
| 77 | 87 | ||
| 78 | /** @} |
88 | /** @} |
| 79 | */ |
89 | */ |