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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <linux/limits.h>
int main(int argc, char *argv[])
{
int c, f;
char *p;
struct stat sb;
f = 0;
do {
c = getopt(argc, argv, "f");
if (c == EOF)
break;
switch (c) {
case 'f':
f = 1;
break;
case '?':
fprintf(stderr, "%s: invalid option -%c\n",
argv[0], optopt);
return 1;
}
} while (1);
if (optind == argc) {
fprintf(stderr, "Usage: %s [-f] source dest\n", argv[0]);
return 1;
}
memset(&sb, 0, sizeof(struct stat));
if (stat(argv[argc - 1], &sb) < 0 && argc - optind > 2) {
if (!(S_ISDIR(sb.st_mode))) {
fprintf(stderr,
"multiple targets and %s is not a directory\n",
argv[argc - 1]);
return 1;
}
}
for (c = optind; c < argc - 1; c++) {
char target[PATH_MAX];
p = strrchr(argv[c], '/');
p++;
if (S_ISDIR(sb.st_mode))
snprintf(target, PATH_MAX, "%s/%s", argv[argc - 1], p);
else
snprintf(target, PATH_MAX, "%s", argv[argc - 1]);
if (f)
unlink(target);
if (rename(argv[c], target) == -1)
perror(target);
}
return 0;
}
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