Mercurial > dovecot > original-hg > dovecot-1.2
annotate src/lib/temp-string.c @ 100:867ec80dbf42 HEAD
Custom flags are now shown in FLAGS and PERMANENTFLAGS lists after SELECT.
It also warns if there's for some reason a duplicate index number in custom
flags file.
| author | Timo Sirainen <tss@iki.fi> |
|---|---|
| date | Thu, 29 Aug 2002 22:21:51 +0300 |
| parents | d493b9cc265e |
| children | 4a7ab9e94f25 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 temp-string.c : Temporary string | |
| 3 | |
| 4 Copyright (c) 2002 Timo Sirainen | |
| 5 | |
| 6 Permission is hereby granted, free of charge, to any person obtaining | |
| 7 a copy of this software and associated documentation files (the | |
| 8 "Software"), to deal in the Software without restriction, including | |
| 9 without limitation the rights to use, copy, modify, merge, publish, | |
| 10 distribute, sublicense, and/or sell copies of the Software, and to | |
| 11 permit persons to whom the Software is furnished to do so, subject to | |
| 12 the following conditions: | |
| 13 | |
| 14 The above copyright notice and this permission notice shall be | |
| 15 included in all copies or substantial portions of the Software. | |
| 16 | |
| 17 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
| 18 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
| 19 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
| 20 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY | |
| 21 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, | |
| 22 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE | |
| 23 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
| 24 */ | |
| 25 | |
| 26 #include "lib.h" | |
| 27 #include "temp-string.h" | |
| 28 | |
| 29 #include <stdio.h> | |
| 30 | |
| 31 typedef struct { | |
| 32 char *str; | |
| 33 unsigned int len; | |
| 34 | |
| 35 unsigned int alloc_size; | |
| 36 } RealTempString; | |
| 37 | |
| 38 TempString *t_string_new(unsigned int initial_size) | |
| 39 { | |
| 40 RealTempString *rstr; | |
| 41 | |
| 42 if (initial_size <= 0) | |
| 43 initial_size = 64; | |
| 44 | |
| 45 rstr = t_new(RealTempString, 1); | |
| 46 rstr->alloc_size = initial_size; | |
| 47 rstr->str = t_malloc(rstr->alloc_size); | |
| 48 rstr->str[0] = '\0'; | |
| 49 return (TempString *) rstr; | |
| 50 } | |
| 51 | |
| 52 static void t_string_inc(TempString *tstr, unsigned int size) | |
| 53 { | |
| 54 RealTempString *rstr = (RealTempString *) tstr; | |
| 55 char *str; | |
| 56 | |
|
50
d493b9cc265e
Introduced uoff_t which is the unsigned-equilevant of off_t. This was needed
Timo Sirainen <tss@iki.fi>
parents:
0
diff
changeset
|
57 size += rstr->len + 1; |
|
d493b9cc265e
Introduced uoff_t which is the unsigned-equilevant of off_t. This was needed
Timo Sirainen <tss@iki.fi>
parents:
0
diff
changeset
|
58 if (size <= rstr->len || size > INT_MAX) { |
|
d493b9cc265e
Introduced uoff_t which is the unsigned-equilevant of off_t. This was needed
Timo Sirainen <tss@iki.fi>
parents:
0
diff
changeset
|
59 /* overflow */ |
|
d493b9cc265e
Introduced uoff_t which is the unsigned-equilevant of off_t. This was needed
Timo Sirainen <tss@iki.fi>
parents:
0
diff
changeset
|
60 i_panic("t_string_inc(): Out of memory for %u bytes", size); |
|
d493b9cc265e
Introduced uoff_t which is the unsigned-equilevant of off_t. This was needed
Timo Sirainen <tss@iki.fi>
parents:
0
diff
changeset
|
61 } |
|
d493b9cc265e
Introduced uoff_t which is the unsigned-equilevant of off_t. This was needed
Timo Sirainen <tss@iki.fi>
parents:
0
diff
changeset
|
62 |
|
d493b9cc265e
Introduced uoff_t which is the unsigned-equilevant of off_t. This was needed
Timo Sirainen <tss@iki.fi>
parents:
0
diff
changeset
|
63 if (size > rstr->alloc_size) { |
|
d493b9cc265e
Introduced uoff_t which is the unsigned-equilevant of off_t. This was needed
Timo Sirainen <tss@iki.fi>
parents:
0
diff
changeset
|
64 rstr->alloc_size = nearest_power(size); |
| 0 | 65 |
| 66 if (!t_try_grow(rstr->str, rstr->alloc_size)) { | |
| 67 str = t_malloc(rstr->alloc_size); | |
| 68 memcpy(str, rstr->str, rstr->len+1); | |
| 69 rstr->str = str; | |
| 70 } | |
| 71 } | |
| 72 } | |
| 73 | |
| 74 /* Append string/character */ | |
| 75 void t_string_append(TempString *tstr, const char *str) | |
| 76 { | |
| 77 t_string_append_n(tstr, str, strlen(str)); | |
| 78 } | |
| 79 | |
| 80 void t_string_append_n(TempString *tstr, const char *str, unsigned int size) | |
| 81 { | |
| 82 i_assert(size < INT_MAX); | |
| 83 | |
| 84 t_string_inc(tstr, size); | |
| 85 memcpy(tstr->str + tstr->len, str, size); | |
| 86 | |
| 87 tstr->len += size; | |
| 88 tstr->str[tstr->len] = '\0'; | |
| 89 } | |
| 90 | |
| 91 void t_string_append_c(TempString *tstr, char chr) | |
| 92 { | |
| 93 t_string_inc(tstr, 1); | |
| 94 tstr->str[tstr->len++] = chr; | |
| 95 tstr->str[tstr->len] = '\0'; | |
| 96 } | |
| 97 | |
| 98 void t_string_printfa(TempString *tstr, const char *fmt, ...) | |
| 99 { | |
| 100 va_list args, args2; | |
| 101 | |
| 102 va_start(args, fmt); | |
| 103 VA_COPY(args2, args); | |
| 104 | |
| 105 t_string_inc(tstr, printf_string_upper_bound(fmt, args)); | |
| 106 tstr->len += vsprintf(tstr->str + tstr->len, fmt, args2); | |
| 107 | |
| 108 va_end(args); | |
| 109 } | |
| 110 | |
| 111 void t_string_erase(TempString *tstr, unsigned int pos, unsigned int len) | |
| 112 { | |
| 113 i_assert(pos < tstr->len && tstr->len - pos >= len); | |
| 114 | |
| 115 memmove(tstr->str + pos + len, tstr->str + pos, | |
| 116 tstr->len - pos - len + 1); | |
| 117 } | |
| 118 | |
| 119 void t_string_truncate(TempString *tstr, unsigned int len) | |
| 120 { | |
| 121 i_assert(len <= tstr->len); | |
| 122 | |
| 123 tstr->len = len; | |
| 124 tstr->str[tstr->len] = '\0'; | |
| 125 } |