mirror of
https://github.com/clearlinux/kvmtool.git
synced 2026-06-16 02:15:47 +00:00
Andre Przywara
8f22adc423
The musl-libc library provides implementations of strlcpy and strlcat, so introduce a feature check for it and only use the kvmtool implementation if there is no library support for it. This avoids clashes with the public definition. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
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/* user defined headers */
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#include <kvm/util.h>
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#include <kvm/strbuf.h>
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int prefixcmp(const char *str, const char *prefix)
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{
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for (; ; str++, prefix++) {
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if (!*prefix)
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return 0;
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else if (*str != *prefix)
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return (unsigned char)*prefix - (unsigned char)*str;
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}
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}
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#ifndef HAVE_STRLCPY
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/**
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* strlcat - Append a length-limited, %NUL-terminated string to another
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* @dest: The string to be appended to
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* @src: The string to append to it
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* @count: The size of the destination buffer.
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*/
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size_t strlcat(char *dest, const char *src, size_t count)
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{
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size_t dsize = strlen(dest);
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size_t len = strlen(src);
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size_t res = dsize + len;
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DIE_IF(dsize >= count);
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dest += dsize;
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count -= dsize;
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if (len >= count)
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len = count - 1;
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memcpy(dest, src, len);
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dest[len] = 0;
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return res;
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}
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/**
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* strlcpy - Copy a %NUL terminated string into a sized buffer
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* @dest: Where to copy the string to
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* @src: Where to copy the string from
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* @size: size of destination buffer
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*
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* Compatible with *BSD: the result is always a valid
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* NUL-terminated string that fits in the buffer (unless,
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* of course, the buffer size is zero). It does not pad
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* out the result like strncpy() does.
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*/
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size_t strlcpy(char *dest, const char *src, size_t size)
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{
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size_t ret = strlen(src);
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if (size) {
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size_t len = (ret >= size) ? size - 1 : ret;
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memcpy(dest, src, len);
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dest[len] = '\0';
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}
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return ret;
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}
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#endif
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