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Diffstat (limited to 'src/string/str/strccpy.c')
-rw-r--r-- | src/string/str/strccpy.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/string/str/strccpy.c b/src/string/str/strccpy.c new file mode 100644 index 0000000..2d1bcd8 --- /dev/null +++ b/src/string/str/strccpy.c @@ -0,0 +1,45 @@ +/** + * slibc — Yet another C library + * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <string.h> + + + +/** + * Copy a memory segment to another, non-overlapping, segment, + * stop when a NUL byte or a specified byte is encountered. + * + * This is a slibc extension added for completeness. + * + * @param whither The destination memory segment. + * @param whence The source memory segment. + * @param c The stop byte. + * @return `NULL` if `c` was not encountered, otherwise + * the position of `c` translated to `whither`, + * that is, the address of `whither` plus the + * number of copied characters; the address of + * one character passed the last written non-NUL + * character. + */ +char* strccpy(char* restrict whither, const char* restrict whence, int c) +{ + char* r = memccpy(whither, whence, c, strlen(whence) + 1); + if (r) + *r = 0; + return r; +} + |