73 lines
1.3 KiB
C
73 lines
1.3 KiB
C
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/**
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* \file appstrcatdup.c
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* \brief app_strcatdup function
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*
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* stolen from glib
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*
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* include LICENSE
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*/
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#include <string.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <appmem.h>
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#include <strcatdup.h>
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#ifdef TRACE_MEM
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#include <tracemem.h>
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#endif
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/*
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* concatanate all arguments of a NULL terminated list
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* and strdup the result
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*/
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char *app_strcatdup (const char *str, ...)
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{
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char *buffer, *cur;
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const char *p;
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unsigned int len = 0;
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va_list args;
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if ((p = str) == NULL) {
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return NULL;
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}
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va_start (args, str);
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while (p != NULL) {
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len += strlen (p);
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p = va_arg (args, const char *);
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}
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va_end (args);
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cur = buffer = app_new(char, len + 1);
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va_start (args, str);
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p = str;
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while (p != NULL) {
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strcpy (cur, p); /* safe */
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p = va_arg (args, const char *);
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cur += strlen (cur);
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}
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va_end (args);
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return buffer;
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}
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/*
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* concatenate and dup <res> = <ptr> <sep> <str>
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* ptr and str must be duped before.
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* res should be freed after usage.
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*/
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char *app_strappend ( char *ptr, char *str, char *sep)
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{
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if ( ptr == NULL ) {
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return str;
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}
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char *newptr = app_strcatdup( ptr, sep, str, NULL );
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app_free( ptr );
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app_free( str );
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return newptr;
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}
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