micro-utils/coreutils/basename.c

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2023-10-24 13:59:42 +03:00
#include <stdio.h>
#include <string.h>
#include <libgen.h>
void remove_suffix(char *base, const char *suffix) {
char *ptr = base + strlen(base) - strlen(suffix);
if (!strcmp(ptr, suffix))
*ptr = '\0';
}
int main(const int argc, char **argv) {
char *suffix = NULL;
char *base = NULL;
int i;
for (i = 1; i < argc; i++) {
if (argv[i][0] != '-')
break;
else if (!strcmp(argv[i], "--help")) {
printf("basename [name] [suffix]\n");
return 0;
}
}
if (argc - i < 1) {
fprintf(stderr, "basename: missing operand\n");
return 1;
}
else if (argc - i == 2)
suffix = argv[i + 1];
base = basename(argv[i]);
if (suffix)
remove_suffix(base, suffix);
puts(base);
return 0;
}