X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=src%2Futils.c;h=dbb0662e547d5adc07ad5013157f5de9c63443f4;hb=e73599ee0ee7a5ee16cbdbac664872d0aa0cf2df;hp=fcdc75d6d5937219986d6b5694af761a054d71b3;hpb=b610b2b953be5dcf3983857a2ce0279c2ea86463;p=platform%2Fupstream%2Flibxkbcommon.git diff --git a/src/utils.c b/src/utils.c index fcdc75d..dbb0662 100644 --- a/src/utils.c +++ b/src/utils.c @@ -1,197 +1,210 @@ - - /*\ - * - * COPYRIGHT 1990 - * DIGITAL EQUIPMENT CORPORATION - * MAYNARD, MASSACHUSETTS - * ALL RIGHTS RESERVED. - * - * THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT NOTICE AND - * SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL EQUIPMENT CORPORATION. - * DIGITAL MAKES NO REPRESENTATIONS ABOUT THE SUITABILITY OF THIS SOFTWARE - * FOR ANY PURPOSE. IT IS SUPPLIED "AS IS" WITHOUT EXPRESS OR IMPLIED - * WARRANTY. - * - * IF THE SOFTWARE IS MODIFIED IN A MANNER CREATING DERIVATIVE COPYRIGHT - * RIGHTS, APPROPRIATE LEGENDS MAY BE PLACED ON THE DERIVATIVE WORK IN - * ADDITION TO THAT SET FORTH ABOVE. - * - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose and without fee is hereby granted, provided - * that the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of Digital Equipment Corporation not be - * used in advertising or publicity pertaining to distribution of the - * software without specific, written prior permission. - \*/ - -#include -#include -#include -#include +/* + * Copyright © 2013 Ran Benita + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include "config.h" #include "utils.h" -void * -recalloc(void *ptr, size_t old_size, size_t new_size) +#ifdef HAVE_MMAP + +#include +#include +#include +#include +#include + +bool +map_file(FILE *file, char **string_out, size_t *size_out) { - char *rtrn; + struct stat stat_buf; + int fd; + char *string; - if (ptr == NULL) - return calloc(1, new_size); + /* Make sure to keep the errno on failure! */ + fd = fileno(file); + if (fd < 0) + return false; - rtrn = realloc(ptr, new_size); - if (rtrn && new_size > old_size) - memset(&rtrn[old_size], 0, new_size - old_size); + if (fstat(fd, &stat_buf) != 0) + return false; - return rtrn; + string = mmap(NULL, stat_buf.st_size, PROT_READ, MAP_SHARED, fd, 0); + if (string == MAP_FAILED) + return false; + + *string_out = string; + *size_out = stat_buf.st_size; + return true; } -static FILE *errorFile = NULL; -static int outCount = 0; -static char *preMsg = NULL; -static char *prefix = NULL; +void +unmap_file(char *str, size_t size) +{ + munmap(str, size); +} + +#else bool -uSetErrorFile(char *name) +map_file(FILE *file, char **string_out, size_t *size_out) { - if ((errorFile != NULL) && (errorFile != stderr)) - { - fprintf(errorFile, "switching to %s\n", name ? name : "stderr"); - fclose(errorFile); - } - if (name != NULL) - errorFile = fopen(name, "w"); - else - errorFile = stderr; - if (errorFile == NULL) - { - errorFile = stderr; + long ret; + size_t ret_s; + char *string; + size_t size; + + /* Make sure to keep the errno on failure! */ + + ret = fseek(file, 0, SEEK_END); + if (ret != 0) + return false; + + ret = ftell(file); + if (ret < 0) + return false; + size = (size_t) ret; + + ret = fseek(file, 0, SEEK_SET); + if (ret < 0) + return false; + + string = malloc(size); + if (!string) + return false; + + ret_s = fread(string, 1, size, file); + if (ret_s < size) { + free(string); return false; } + + *string_out = string; + *size_out = size; return true; } void -uInformation(const char *s, ...) +unmap_file(char *str, size_t size) { - va_list args; - - if (!errorFile) - errorFile = stderr; - - va_start(args, s); - vfprintf(errorFile, s, args); - va_end(args); - fflush(errorFile); + free(str); } -/***====================================================================***/ - -void -uAction(const char *s, ...) +#endif + +// ASCII lower-case map. +static const unsigned char lower_map[] = { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, + 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, + 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, + 59, 60, 61, 62, 63, 64, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, + 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, + 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, + 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, + 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, + 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, + 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, + 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, + 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, + 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, + 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, + 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, + 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255 +}; + +// ASCII tolower (to avoid locale issues). +char +to_lower(char c) { - va_list args; - - if (!errorFile) - errorFile = stderr; - - if (prefix != NULL) - fprintf(errorFile, "%s", prefix); - fprintf(errorFile, " "); - va_start(args, s); - vfprintf(errorFile, s, args); - va_end(args); - fflush(errorFile); + return (char) lower_map[(unsigned char) c]; } -/***====================================================================***/ - -void -uWarning(const char *s, ...) +// ASCII strcasecmp (to avoid locale issues). +int +istrcmp(const char *a, const char *b) { - va_list args; - - if (!errorFile) - errorFile = stderr; - - if ((outCount == 0) && (preMsg != NULL)) - fprintf(errorFile, "%s\n", preMsg); - if (prefix != NULL) - fprintf(errorFile, "%s", prefix); - fprintf(errorFile, "Warning: "); - va_start(args, s); - vfprintf(errorFile, s, args); - va_end(args); - fflush(errorFile); - outCount++; + for (size_t i = 0; ; i++) { + if (to_lower(a[i]) != to_lower(b[i])) + return (int) to_lower(a[i]) - (int) to_lower(b[i]); + if (!a[i]) + break; + } + return 0; } -/***====================================================================***/ - -void -uError(const char *s, ...) +// ASCII strncasecmp (to avoid locale issues). +int +istrncmp(const char *a, const char *b, size_t n) { - va_list args; - - if (!errorFile) - errorFile = stderr; - - if ((outCount == 0) && (preMsg != NULL)) - fprintf(errorFile, "%s\n", preMsg); - if (prefix != NULL) - fprintf(errorFile, "%s", prefix); - fprintf(errorFile, "Error: "); - va_start(args, s); - vfprintf(errorFile, s, args); - va_end(args); - fflush(errorFile); - outCount++; + for (size_t i = 0; i < n; i++) { + if (to_lower(a[i]) != to_lower(b[i])) + return (int) to_lower(a[i]) - (int) to_lower(b[i]); + if (!a[i]) + break; + } + return 0; } -/***====================================================================***/ - -void -uFatalError(const char *s, ...) +#if !(defined(HAVE_ASPRINTF) && HAVE_ASPRINTF) +int +asprintf(char **strp, const char *fmt, ...) { - va_list args; - - if (!errorFile) - errorFile = stderr; - - if ((outCount == 0) && (preMsg != NULL)) - fprintf(errorFile, "%s\n", preMsg); - if (prefix != NULL) - fprintf(errorFile, "%s", prefix); - fprintf(errorFile, "Fatal Error: "); - va_start(args, s); - vfprintf(errorFile, s, args); - va_end(args); - fprintf(errorFile, " Exiting\n"); - fflush(errorFile); - outCount++; - exit(1); - /* NOTREACHED */ + int ret; + va_list ap; + va_start(ap, fmt); + ret = vasprintf(strp, fmt, ap); + va_end(ap); + return ret; } -/***====================================================================***/ - -void -uInternalError(const char *s, ...) +# if !(defined(HAVE_VASPRINTF) && HAVE_VASPRINTF) +int +vasprintf(char **strp, const char *fmt, va_list ap) { - va_list args; - - if (!errorFile) - errorFile = stderr; - - if ((outCount == 0) && (preMsg != NULL)) - fprintf(errorFile, "%s\n", preMsg); - if (prefix != NULL) - fprintf(errorFile, "%s", prefix); - fprintf(errorFile, "Internal error: "); - va_start(args, s); - vfprintf(errorFile, s, args); - va_end(args); - fflush(errorFile); - outCount++; + int ret; + char *buf; + va_list ap_copy; + + /* + * The value of the va_list parameter is undefined after the call to + * vsnprintf() returns: pass a copy to make sure "ap" remains valid. + */ + va_copy(ap_copy, ap); + ret = vsnprintf(NULL, 0, fmt, ap_copy); + va_end(ap_copy); + + if (ret < 0) + return ret; + + if (!(buf = malloc(ret + 1))) + return -1; + + if ((ret = vsnprintf(buf, ret + 1, fmt, ap)) < 0) { + free(buf); + return ret; + } + + *strp = buf; + return ret; } +# endif /* !HAVE_VASPRINTF */ +#endif /* !HAVE_ASPRINTF */