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54 lines
934 B
C
54 lines
934 B
C
#include <sys/types.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include "Strn.h"
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/*VARARGS*/
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char *
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Dynscat(char **dst, ...)
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{
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va_list ap;
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const char *src;
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char *newdst, *dcp;
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size_t curLen, catLen, srcLen;
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if (dst == (char **) 0)
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return NULL;
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catLen = 0;
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va_start(ap, dst);
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src = va_arg(ap, char *);
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while (src != NULL) {
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catLen += strlen(src);
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src = va_arg(ap, char *);
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}
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va_end(ap);
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if ((*dst == NULL) || (**dst == '\0'))
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curLen = 0;
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else
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curLen = strlen(*dst);
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if (*dst == NULL)
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newdst = malloc(curLen + catLen + 2);
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else
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newdst = realloc(*dst, curLen + catLen + 2);
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if (newdst == NULL)
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return NULL;
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dcp = newdst + curLen;
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va_start(ap, dst);
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src = va_arg(ap, char *);
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while (src != NULL) {
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srcLen = strlen(src);
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memcpy(dcp, src, srcLen);
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dcp += srcLen;
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src = va_arg(ap, char *);
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}
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va_end(ap);
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*dcp = '\0';
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*dst = newdst;
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return (newdst);
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} /* Dynscat */
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