From f34d4bbbeec9601c416863fb1459db06e5e3d81a Mon Sep 17 00:00:00 2001 From: George Abbott Date: Thu, 13 Feb 2025 22:50:55 +0000 Subject: added fex --- scripts/fex.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 scripts/fex.c diff --git a/scripts/fex.c b/scripts/fex.c new file mode 100644 index 0000000..7abdc5f --- /dev/null +++ b/scripts/fex.c @@ -0,0 +1,34 @@ +#include +#include +#include + +// Grab the file extension of the filename passed. +// TODO: current just does it until the first. Add in variations to grab all, +// only specific entries like .tar.gz, etc. + +void usage(void) +{ + printf("fex: returns the extension of the filename passed\n"); + exit(0); +} + +int main(int argc, char **argv) +{ + if (argc <= 1) + usage(); + + const char *file = argv[1]; // FIXME: unsafe. + size_t len = strlen(file); + if (len == 0) + fprintf(stderr, "length of file cannot be zero\n"), exit(-1); + + for (len--; len != 0; len--) + { + if (file[len] == '.') + { + printf("%s\n", file + len + 1); + return 0; + } + } + return 0; +} -- cgit v1.2.1