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63 lines
1.2 KiB
C
63 lines
1.2 KiB
C
/*
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* zebra string function
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*
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* these functions are just very basic wrappers around exiting ones and
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* do not offer the protection that might be expected against buffer
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* overruns etc
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*/
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#include <zebra.h>
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#include "str.h"
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#ifndef HAVE_SNPRINTF
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/*
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* snprint() is a real basic wrapper around the standard sprintf()
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* without any bounds checking
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*/
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int
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snprintf(char *str, size_t size, const char *format, ...)
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{
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va_list args;
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va_start (args, format);
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return vsprintf (str, format, args);
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}
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#endif
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#ifndef HAVE_STRLCPY
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/*
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* strlcpy is a safer version of strncpy(), checking the total
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* size of the buffer
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*/
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size_t
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strlcpy(char *dst, const char *src, size_t size)
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{
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strncpy(dst, src, size);
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return (strlen(dst));
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}
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#endif
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#ifndef HAVE_STRLCAT
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/*
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* strlcat is a safer version of strncat(), checking the total
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* size of the buffer
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*/
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size_t
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strlcat(char *dst, const char *src, size_t size)
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{
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/* strncpy(dst, src, size - strlen(dst)); */
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/* I've just added below code only for workable under Linux. So
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need rewrite -- Kunihiro. */
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if (strlen (dst) + strlen (src) >= size)
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return -1;
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strcat (dst, src);
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return (strlen(dst));
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}
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#endif
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