mirror of https://git.tukaani.org/xz.git
Minor cleanups to xzdec.
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parent
54f716ba89
commit
86a0ed8f01
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@ -112,7 +112,7 @@ static void lzma_attribute((noreturn))
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version(void)
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version(void)
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{
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{
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printf(
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printf(
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"lzmadec (LZMA Utils) " PACKAGE_VERSION "\n"
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"xzdec " PACKAGE_VERSION "\n"
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"\n"
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"\n"
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"Copyright (C) 1999-2006 Igor Pavlov\n"
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"Copyright (C) 1999-2006 Igor Pavlov\n"
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"Copyright (C) 2007 Lasse Collin\n"
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"Copyright (C) 2007 Lasse Collin\n"
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@ -149,14 +149,14 @@ set_default_memlimit(void)
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}
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}
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/// \brief Converts a string to size_t
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/// \brief Converts a string to uint64_t
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///
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///
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/// This is rudely copied from src/xz/util.c and modified a little. :-(
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/// This is rudely copied from src/xz/util.c and modified a little. :-(
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///
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///
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static size_t
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static uint64_t
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str_to_uint64(const char *value)
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str_to_uint64(const char *value)
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{
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{
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size_t result = 0;
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uint64_t result = 0;
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if (*value < '0' || *value > '9') {
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if (*value < '0' || *value > '9') {
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fprintf(stderr, "%s: %s: Not a number", argv0, value);
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fprintf(stderr, "%s: %s: Not a number", argv0, value);
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@ -165,8 +165,8 @@ str_to_uint64(const char *value)
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do {
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do {
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// Don't overflow.
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// Don't overflow.
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if (result > (SIZE_MAX - 9) / 10)
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if (result > (UINT64_MAX - 9) / 10)
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return SIZE_MAX;
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return UINT64_MAX;
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result *= 10;
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result *= 10;
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result += *value - '0';
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result += *value - '0';
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@ -177,7 +177,7 @@ str_to_uint64(const char *value)
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// Look for suffix.
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// Look for suffix.
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static const struct {
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static const struct {
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const char name[4];
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const char name[4];
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size_t multiplier;
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uint32_t multiplier;
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} suffixes[] = {
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} suffixes[] = {
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{ "k", 1000 },
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{ "k", 1000 },
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{ "kB", 1000 },
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{ "kB", 1000 },
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@ -193,7 +193,7 @@ str_to_uint64(const char *value)
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{ "GiB", 1073741824 }
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{ "GiB", 1073741824 }
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};
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};
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size_t multiplier = 0;
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uint32_t multiplier = 0;
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for (size_t i = 0; i < ARRAY_SIZE(suffixes); ++i) {
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for (size_t i = 0; i < ARRAY_SIZE(suffixes); ++i) {
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if (strcmp(value, suffixes[i].name) == 0) {
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if (strcmp(value, suffixes[i].name) == 0) {
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multiplier = suffixes[i].multiplier;
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multiplier = suffixes[i].multiplier;
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@ -208,8 +208,8 @@ str_to_uint64(const char *value)
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}
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}
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// Don't overflow here either.
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// Don't overflow here either.
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if (result > SIZE_MAX / multiplier)
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if (result > UINT64_MAX / multiplier)
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result = SIZE_MAX;
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result = UINT64_MAX;
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else
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else
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result *= multiplier;
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result *= multiplier;
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}
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}
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