diff options
Diffstat (limited to 'mariadb-connector-c-v_2.3.7/libmariadb/strxnmov.c')
-rw-r--r-- | mariadb-connector-c-v_2.3.7/libmariadb/strxnmov.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/mariadb-connector-c-v_2.3.7/libmariadb/strxnmov.c b/mariadb-connector-c-v_2.3.7/libmariadb/strxnmov.c new file mode 100644 index 0000000..d5167f6 --- /dev/null +++ b/mariadb-connector-c-v_2.3.7/libmariadb/strxnmov.c @@ -0,0 +1,48 @@ +/* File : strxnmov.c + Author : Richard A. O'Keefe. + Updated: 2 June 1984 + Defines: strxnmov() + + strxnmov(dst, len, src1, ..., srcn, NullS) + moves the first len characters of the concatenation of src1,...,srcn + to dst. If there aren't that many characters, a NUL character will + be added to the end of dst to terminate it properly. This gives the + same effect as calling strxcpy(buff, src1, ..., srcn, NullS) with a + large enough buffer, and then calling strnmov(dst, buff, len). + It is just like strnmov except that it concatenates multiple sources. + Beware: the last argument should be the null character pointer. + Take VERY great care not to omit it! Also be careful to use NullS + and NOT to use 0, as on some machines 0 is not the same size as a + character pointer, or not the same bit pattern as NullS. + + Note: strxnmov is like strnmov in that it moves up to len + characters; dst will be padded on the right with one NUL characters if + needed. +*/ + +#include <my_global.h> +#include "m_string.h" +#include <stdarg.h> + +char *strxnmov(char *dst, size_t len, const char *src, ...) +{ + va_list pvar; + char *end_of_dst=dst+len; + + va_start(pvar,src); + while (src != NullS) + { + do + { + if (dst == end_of_dst) + goto end; + } + while ((*dst++ = *src++)); + dst--; + src = va_arg(pvar, char *); + } + *dst=0; +end: + va_end(pvar); + return dst; +} |