60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <limits.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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int mv_main(int argc, char *argv[])
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{
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const char* dest;
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struct stat st;
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int i;
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if (argc < 3) {
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fprintf(stderr,"USAGE: %s <source...> <destination>\n", argv[0]);
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return -1;
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}
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/* check if destination exists */
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dest = argv[argc - 1];
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if (stat(dest, &st)) {
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/* an error, unless the destination was missing */
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if (errno != ENOENT) {
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fprintf(stderr, "failed on %s - %s\n", dest, strerror(errno));
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return -1;
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}
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st.st_mode = 0;
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}
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for (i = 1; i < argc - 1; i++) {
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const char *source = argv[i];
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char fullDest[PATH_MAX + 1 + PATH_MAX + 1];
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/* assume we build "dest/source", and let rename() fail on pathsize */
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if (strlen(dest) + 1 + strlen(source) + 1 > sizeof(fullDest)) {
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fprintf(stderr, "path too long\n");
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return -1;
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}
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strcpy(fullDest, dest);
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/* if destination is a directory, concat the source file name */
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if (S_ISDIR(st.st_mode)) {
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const char *fileName = strrchr(source, '/');
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if (fullDest[strlen(fullDest)-1] != '/') {
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strcat(fullDest, "/");
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}
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strcat(fullDest, fileName ? fileName + 1 : source);
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}
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/* attempt to move it */
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if (rename(source, fullDest)) {
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fprintf(stderr, "failed on '%s' - %s\n", source, strerror(errno));
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return -1;
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}
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}
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return 0;
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}
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