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lokinet/llarp/buffer.cpp

34 lines
766 B
C++

#include <llarp/buffer.h>
#include <stdarg.h>
#include <stdio.h>
extern "C" {
bool llarp_buffer_writef(llarp_buffer_t* buff, const char* fmt, ...) {
int written;
size_t sz = llarp_buffer_size_left(buff);
va_list args;
va_start(args, fmt);
written = snprintf(buff->cur, sz, fmt, args);
va_end(args);
if (written == -1) return false;
buff->sz += written;
return true;
}
bool llarp_buffer_readfile(llarp_buffer_t* buff, FILE* f, llarp_alloc* mem) {
ssize_t len;
fseek(f, 0, SEEK_END);
len = ftell(f);
rewind(f);
if (len > 0) {
buff->base = static_cast<char*>(mem->alloc(len, 8));
buff->cur = buff->base;
buff->sz = len;
size_t sz = fread(buff->base, len, 1, f);
rewind(f);
return sz == len;
}
return false;
}
}