|
|
| #include <errno.h> |
| #include "readstat.h" |
| #include "readstat_iconv.h" |
| #include "readstat_convert.h" |
|
|
| readstat_error_t readstat_convert(char *dst, size_t dst_len, const char *src, size_t src_len, iconv_t converter) { |
| |
| |
| while (src_len && (src[src_len-1] == ' ' || src[src_len-1] == '\0')) { |
| src_len--; |
| } |
| if (dst_len == 0) { |
| return READSTAT_ERROR_CONVERT_LONG_STRING; |
| } else if (converter) { |
| size_t dst_left = dst_len - 1; |
| char *dst_end = dst; |
| size_t status = iconv(converter, (readstat_iconv_inbuf_t)&src, &src_len, &dst_end, &dst_left); |
| if (status == (size_t)-1) { |
| if (errno == E2BIG) { |
| return READSTAT_ERROR_CONVERT_LONG_STRING; |
| } else if (errno == EILSEQ) { |
| return READSTAT_ERROR_CONVERT_BAD_STRING; |
| } else if (errno != EINVAL) { |
| return READSTAT_ERROR_CONVERT; |
| } |
| } |
| dst[dst_len - dst_left - 1] = '\0'; |
| } else if (src_len + 1 > dst_len) { |
| return READSTAT_ERROR_CONVERT_LONG_STRING; |
| } else { |
| memcpy(dst, src, src_len); |
| dst[src_len] = '\0'; |
| } |
| return READSTAT_OK; |
| } |
|
|
