rz-bb.c

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// SPDX-FileCopyrightText: 2017 pancake <pancake@nopcode.org>
// SPDX-License-Identifier: LGPL-3.0-only
 
#include <rz_util.h>
 
typedef char *(*CommandCallback)(const char *args);
 
typedef struct {
    const char *cmd;
    CommandCallback cb;
} BbCommands;
 
static BbCommands bbcmds[] = {
    { "cat", rz_syscmd_cat },
    { "ls", rz_syscmd_ls },
    NULL
};
 
static int run(int i, const char *arg) {
    char *res = bbcmds[i].cb(arg);
    if (res) {
        printf("%s", res);
        free(res);
        return 0;
    }
    return 1;
}
 
int main(int argc, char **argv) {
    int i;
    for (i = 0; bbcmds[i].cmd; i++) {
        if (!strcmp(bbcmds[i].cmd, argv[0])) {
            const char *arg = argc > 1 ? argv[1] : NULL;
            return run(i, arg);
        }
    }
    if (argc > 1) {
        for (i = 0; bbcmds[i].cmd; i++) {
            if (!strcmp(bbcmds[i].cmd, argv[1])) {
                const char *arg = argc > 2 ? argv[2] : NULL;
                return run(i, arg);
            }
        }
    }
    for (i = 0; bbcmds[i].cmd; i++) {
        printf("%s\n", bbcmds[i].cmd);
    }
    return 1;
}