diff options
Diffstat (limited to 'Build/source/extra/xz-4.999.9beta/src/xz/util.c')
-rw-r--r-- | Build/source/extra/xz-4.999.9beta/src/xz/util.c | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/Build/source/extra/xz-4.999.9beta/src/xz/util.c b/Build/source/extra/xz-4.999.9beta/src/xz/util.c deleted file mode 100644 index d160ea0d600..00000000000 --- a/Build/source/extra/xz-4.999.9beta/src/xz/util.c +++ /dev/null @@ -1,229 +0,0 @@ -/////////////////////////////////////////////////////////////////////////////// -// -/// \file util.c -/// \brief Miscellaneous utility functions -// -// Author: Lasse Collin -// -// This file has been put into the public domain. -// You can do whatever you want with this file. -// -/////////////////////////////////////////////////////////////////////////////// - -#include "private.h" - - -// Thousand separator for format strings is not supported outside POSIX. -// This is used in uint64_to_str() and double_to_str(). -#ifdef DOSLIKE -# define THOUSAND "" -#else -# define THOUSAND "'" -#endif - - -extern void * -xrealloc(void *ptr, size_t size) -{ - assert(size > 0); - - ptr = realloc(ptr, size); - if (ptr == NULL) - message_fatal("%s", strerror(errno)); - - return ptr; -} - - -extern char * -xstrdup(const char *src) -{ - assert(src != NULL); - const size_t size = strlen(src) + 1; - char *dest = xmalloc(size); - return memcpy(dest, src, size); -} - - -extern uint64_t -str_to_uint64(const char *name, const char *value, uint64_t min, uint64_t max) -{ - uint64_t result = 0; - - // Skip blanks. - while (*value == ' ' || *value == '\t') - ++value; - - // Accept special value "max". Supporting "min" doesn't seem useful. - if (strcmp(value, "max") == 0) - return max; - - if (*value < '0' || *value > '9') - message_fatal(_("%s: Value is not a non-negative " - "decimal integer"), value); - - do { - // Don't overflow. - if (result > (UINT64_MAX - 9) / 10) - goto error; - - result *= 10; - result += *value - '0'; - ++value; - } while (*value >= '0' && *value <= '9'); - - if (*value != '\0') { - // Look for suffix. - static const struct { - const char name[4]; - uint64_t multiplier; - } suffixes[] = { - { "k", UINT64_C(1000) }, - { "kB", UINT64_C(1000) }, - { "M", UINT64_C(1000000) }, - { "MB", UINT64_C(1000000) }, - { "G", UINT64_C(1000000000) }, - { "GB", UINT64_C(1000000000) }, - { "Ki", UINT64_C(1024) }, - { "KiB", UINT64_C(1024) }, - { "Mi", UINT64_C(1048576) }, - { "MiB", UINT64_C(1048576) }, - { "Gi", UINT64_C(1073741824) }, - { "GiB", UINT64_C(1073741824) } - }; - - uint64_t multiplier = 0; - for (size_t i = 0; i < ARRAY_SIZE(suffixes); ++i) { - if (strcmp(value, suffixes[i].name) == 0) { - multiplier = suffixes[i].multiplier; - break; - } - } - - if (multiplier == 0) { - message(V_ERROR, _("%s: Invalid multiplier suffix. " - "Valid suffixes:"), value); - message_fatal("`k' (10^3), `M' (10^6), `G' (10^9) " - "`Ki' (2^10), `Mi' (2^20), " - "`Gi' (2^30)"); - } - - // Don't overflow here either. - if (result > UINT64_MAX / multiplier) - goto error; - - result *= multiplier; - } - - if (result < min || result > max) - goto error; - - return result; - -error: - message_fatal(_("Value of the option `%s' must be in the range " - "[%" PRIu64 ", %" PRIu64 "]"), - name, min, max); -} - - -extern const char * -uint64_to_str(uint64_t value, uint32_t slot) -{ - // 2^64 with thousand separators is 26 bytes plus trailing '\0'. - static char bufs[4][32]; - - assert(slot < ARRAY_SIZE(bufs)); - - snprintf(bufs[slot], sizeof(bufs[slot]), "%" THOUSAND PRIu64, value); - return bufs[slot]; -} - - -extern const char * -double_to_str(double value) -{ - // 64 bytes is surely enough, since it won't fit in some other - // fields anyway. - static char buf[64]; - - snprintf(buf, sizeof(buf), "%" THOUSAND ".1f", value); - return buf; -} - - -/* -/// \brief Simple quoting to get rid of ASCII control characters -/// -/// This is not so cool and locale-dependent, but should be good enough -/// At least we don't print any control characters on the terminal. -/// -extern char * -str_quote(const char *str) -{ - size_t dest_len = 0; - bool has_ctrl = false; - - while (str[dest_len] != '\0') - if (*(unsigned char *)(str + dest_len++) < 0x20) - has_ctrl = true; - - char *dest = malloc(dest_len + 1); - if (dest != NULL) { - if (has_ctrl) { - for (size_t i = 0; i < dest_len; ++i) - if (*(unsigned char *)(str + i) < 0x20) - dest[i] = '?'; - else - dest[i] = str[i]; - - dest[dest_len] = '\0'; - - } else { - // Usually there are no control characters, - // so we can optimize. - memcpy(dest, str, dest_len + 1); - } - } - - return dest; -} -*/ - - -extern bool -is_empty_filename(const char *filename) -{ - if (filename[0] == '\0') { - message_error(_("Empty filename, skipping")); - return true; - } - - return false; -} - - -extern bool -is_tty_stdin(void) -{ - const bool ret = isatty(STDIN_FILENO); - - if (ret) - message_error(_("Compressed data not read from a terminal " - "unless `--force' is used.")); - - return ret; -} - - -extern bool -is_tty_stdout(void) -{ - const bool ret = isatty(STDOUT_FILENO); - - if (ret) - message_error(_("Compressed data not written to a terminal " - "unless `--force' is used.")); - - return ret; -} |