hexdmp/function.c at master · hwoy/hexdmp · GitHub

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#include "function.h"

unsigned int
ui2s(unsigned int num,
    char* buff,
    unsigned int bsize,
    unsigned int base,
    unsigned int len)
{
    unsigned int i, j, k, l;
    char chb, che;
    if (!base) {
        buff[0] = 0;
        return 0;
    }

    j = num, i = 0;
    do {
        k = j % base;
        j /= base;
        buff[i++] = ((base == 16) && (k > 9)) ? k + 'A' - 10 : k + '0';
    } while (j > 0 && i < bsize);

    for (; i < len; i++) {
        buff[i] = '0';
    }

    l = i;
    buff[i] = 0;

    if (i > 0) {
        chb = buff[0];
        che = buff[i - 1];
        for (j = 0, i--; j < i; j++, i--) {
            chb = buff[j];
            che = buff[i];
            buff[j] = che;
            buff[i] = chb;
        }
    }

    return l;
}

int isUint(const char* ch)
{
    unsigned int i;
    if (!sLen(ch))
        return 0;
    for (i = 0; ch[i]; i++) {
        if (ch[i] < '0' || ch[i] > '9') {
            return 0;
        }
    }
    return 1;
}

unsigned int
pow2ui(unsigned int base, unsigned int pow)
{
    unsigned int i, j;
    if (!base)
        return 0;
    if (!pow)
        return 1;
    for (i = 1, j = base; i < pow; i++) {
        j = j * base;
    }
    return j;
}

unsigned int
s2ui(const char* ch, unsigned int base)
{
    unsigned int i, j, k, l;
    j = 0;
    k = 0;
    i = sLen(ch) - 1;
    do {
        if (base == 16) {
            l = (((ch[i] >= 'A' && ch[i] <= 'F') ? (ch[i] - 'A' + 10) : (ch[i] - '0')));

            j += l * pow2ui(base, k++);
        }

        else {
            j += (ch[i] - '0') * pow2ui(base, k++);
        }
    } while (i-- != 0);

    return j;
}

unsigned int
sLen(const char* ch)
{
    unsigned int i;

    for (i = 0; ch[i]; i++)
        ;
    return i;
}

unsigned
isUintHex(const char* ch)
{
    unsigned int i;
    if (!sLen(ch))
        return 0;
    for (i = 0; ch[i]; i++) {
        if (!((ch[i] >= '0' && ch[i] <= '9') || (ch[i] >= 'A' && ch[i] <= 'F')))
            return 0;
    }
    return 1;
}

unsigned long
uL2s(unsigned long num,
    char* buff,
    unsigned int bsize,
    unsigned int base,
    unsigned int len)
{
    unsigned int i, j, k;
    unsigned long l;
    char chb, che;
    if (!base) {
        buff[0] = 0;
        return 0;
    }

    j = num, i = 0;
    do {
        k = j % base;
        j /= base;
        buff[i++] = ((base == 16) && (k > 9)) ? k + 'A' - 10 : k + '0';
    } while (j > 0 && i < bsize);

    for (; i < len; i++) {
        buff[i] = '0';
    }

    l = i;
    buff[i] = 0;

    if (i > 0) {
        chb = buff[0];
        che = buff[i - 1];
        for (j = 0, i--; j < i; j++, i--) {
            chb = buff[j];
            che = buff[i];
            buff[j] = che;
            buff[i] = chb;
        }
    }

    return l;
}

unsigned long
pow2uL(unsigned int base, unsigned int pow)
{
    unsigned long i, j;
    if (!base)
        return 0;
    if (!pow)
        return 1;
    for (i = 1, j = base; i < pow; i++) {
        j = j * base;
    }
    return j;
}

unsigned long
s2uL(const char* ch, unsigned int base)
{
    unsigned long i, j, k, l;
    j = 0;
    k = 0;
    i = sLen(ch) - 1;
    do {
        if (base == 16) {
            l = (((ch[i] >= 'A' && ch[i] <= 'F') ? (ch[i] - 'A' + 10) : (ch[i] - '0')));

            j += l * pow2ui(base, k++);
        }

        else {
            j += (ch[i] - '0') * pow2uL(base, k++);
        }
    } while (i-- != 0);

    return j;
}

fpos_t
fpos2s(fpos_t num,
    char* buff,
    unsigned int bsize,
    unsigned int base,
    unsigned int len)
{
    fpos_t i, j, k;
    fpos_t l;
    char chb, che;
    if (!base) {
        buff[0] = 0;
        return 0;
    }

    j = num, i = 0;
    do {
        k = j % base;
        j /= base;
        buff[i++] = ((base == 16) && (k > 9)) ? k + 'A' - 10 : k + '0';
    } while (j > 0 && i < bsize);

    for (; i < len; i++) {
        buff[i] = '0';
    }

    l = i;
    buff[i] = 0;

    if (i > 0) {
        chb = buff[0];
        che = buff[i - 1];
        for (j = 0, i--; j < i; j++, i--) {
            chb = buff[j];
            che = buff[i];
            buff[j] = che;
            buff[i] = chb;
        }
    }

    return l;
}

fpos_t
pow2fpos(unsigned int base, unsigned int pow)
{
    unsigned int i;
	fpos_t j;
    if (!base)
        return 0;
    if (!pow)
        return 1;
    for (i = 1, j = base; i < pow; i++) {
        j = j * base;
    }
    return j;
}

fpos_t
s2fpos(const char *ch, unsigned int base)
{
    fpos_t i, j, l;
	unsigned int k;
    j = 0;
    k = 0;
    i = sLen(ch) - 1;
    do {
        if (base == 16) {
            l = (((ch[i] >= 'A' && ch[i] <= 'F') ? (ch[i] - 'A' + 10) : (ch[i] - '0')));

            j += l * pow2fpos(base, k++);
        }

        else {
            j += (ch[i] - '0') * pow2fpos(base, k++);
        }
    } while (i-- != 0);

    return j;
}


size_t
sT2s(size_t num,
    char* buff,
    unsigned int bsize,
    unsigned int base,
    unsigned int len)
{
    size_t i, j, k;
    size_t l;
    char chb, che;
    if (!base) {
        buff[0] = 0;
        return 0;
    }

    j = num, i = 0;
    do {
        k = j % base;
        j /= base;
        buff[i++] = ((base == 16) && (k > 9)) ? k + 'A' - 10 : k + '0';
    } while (j > 0 && i < bsize);

    for (; i < len; i++) {
        buff[i] = '0';
    }

    l = i;
    buff[i] = 0;

    if (i > 0) {
        chb = buff[0];
        che = buff[i - 1];
        for (j = 0, i--; j < i; j++, i--) {
            chb = buff[j];
            che = buff[i];
            buff[j] = che;
            buff[i] = chb;
        }
    }

    return l;
}

size_t
pow2sT(unsigned int base, unsigned int pow)
{
    unsigned int i;
	size_t j;
    if (!base)
        return 0;
    if (!pow)
        return 1;
    for (i = 1, j = base; i < pow; i++) {
        j = j * base;
    }
    return j;
}

size_t
s2sT(const char* ch, unsigned int base)
{
    size_t i, j, l;
	unsigned int k;
    j = 0;
    k = 0;
    i = sLen(ch) - 1;
    do {
        if (base == 16) {
            l = (((ch[i] >= 'A' && ch[i] <= 'F') ? (ch[i] - 'A' + 10) : (ch[i] - '0')));

            j += l * pow2sT(base, k++);
        }

        else {
            j += (ch[i] - '0') * pow2sT(base, k++);
        }
    } while (i-- != 0);

    return j;
}