From 02d288d89683e99fd18fe9f54d4e731a6c474a4f Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Thu, 12 Apr 2012 01:38:35 -0400 Subject: initial check-in --- src/basename.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 src/basename.c (limited to 'src/basename.c') diff --git a/src/basename.c b/src/basename.c new file mode 100644 index 0000000..25b8b24 --- /dev/null +++ b/src/basename.c @@ -0,0 +1,33 @@ +#include +#include +#include + +static int my_write(int fd, const char *s, size_t l) +{ + if (!l) l = strlen(s); + while (l) { + ssize_t n = write(fd, s, l); + if (n<0) return -1; + s += n; l -= n; + } + return 0; +} + +int main(int argc, char *argv[]) +{ + char *s; + if ((unsigned)argc - 2 > 1) { + my_write(2, argv[0], 0); + my_write(2, ": missing operand\n", 0); + return 1; + } + s = basename(argv[1]); + if (argc > 2) { + size_t k = strlen(s); + size_t l = strlen(argv[2]); + if (k>l && !strcmp(s+(k-l), argv[2])) s[k-l]=0; + } + if (my_write(1, s, 0)<0 || my_write(1, "\n", 1)<0) + return 1; + return 0; +} -- cgit v1.2.1