Some formatting updates (ran the code through indent)
-Erik
This commit is contained in:
152
coreutils/ln.c
152
coreutils/ln.c
@ -1,3 +1,4 @@
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/* vi: set sw=4 ts=4: */
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/*
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* Mini ln implementation for busybox
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*
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@ -30,15 +31,16 @@
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#include <stdio.h>
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#include <dirent.h>
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#include <errno.h>
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#include <sys/param.h> /* for PATH_MAX */
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#include <sys/param.h> /* for PATH_MAX */
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static const char ln_usage[] =
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"ln [OPTION] TARGET... LINK_NAME|DIRECTORY\n\n"
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"Create a link named LINK_NAME or DIRECTORY to the specified TARGET\n\n"
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"Options:\n"
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"\t-s\tmake symbolic links instead of hard links\n"
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"\t-f\tremove existing destination files\n"
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"\t-n\tno dereference symlinks - treat like normal file\n";
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"ln [OPTION] TARGET... LINK_NAME|DIRECTORY\n\n"
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"Create a link named LINK_NAME or DIRECTORY to the specified TARGET\n\n"
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"Options:\n"
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"\t-s\tmake symbolic links instead of hard links\n"
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"\t-f\tremove existing destination files\n"
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"\t-n\tno dereference symlinks - treat like normal file\n";
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static int symlinkFlag = FALSE;
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static int removeoldFlag = FALSE;
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@ -46,83 +48,83 @@ static int followLinks = TRUE;
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extern int ln_main(int argc, char **argv)
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{
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char *linkName;
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int linkIntoDirFlag;
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char *linkName;
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int linkIntoDirFlag;
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if (argc < 3) {
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usage (ln_usage);
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}
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argc--;
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argv++;
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/* Parse any options */
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while (**argv == '-') {
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while (*++(*argv))
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switch (**argv) {
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case 's':
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symlinkFlag = TRUE;
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break;
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case 'f':
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removeoldFlag = TRUE;
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break;
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case 'n':
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followLinks = FALSE;
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break;
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default:
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usage (ln_usage);
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}
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if (argc < 3) {
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usage(ln_usage);
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}
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argc--;
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argv++;
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}
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linkName = argv[argc - 1];
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if (strlen(linkName) > PATH_MAX) {
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fprintf(stderr, name_too_long, "ln");
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exit FALSE;
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}
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linkIntoDirFlag = isDirectory(linkName, TRUE);
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if ((argc > 3) && !linkIntoDirFlag) {
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fprintf(stderr, not_a_directory, "ln", linkName);
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exit FALSE;
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}
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while (argc-- >= 2) {
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char srcName[PATH_MAX + 1];
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int nChars, status;
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if (strlen(*argv) > PATH_MAX) {
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fprintf(stderr, name_too_long, "ln");
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exit FALSE;
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/* Parse any options */
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while (**argv == '-') {
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while (*++(*argv))
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switch (**argv) {
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case 's':
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symlinkFlag = TRUE;
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break;
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case 'f':
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removeoldFlag = TRUE;
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break;
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case 'n':
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followLinks = FALSE;
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break;
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default:
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usage(ln_usage);
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}
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argc--;
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argv++;
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}
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if (followLinks == FALSE) {
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strcpy(srcName, *argv);
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} else {
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/* Warning! This can silently truncate if > PATH_MAX, but
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I don't think that there can be one > PATH_MAX anyway. */
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nChars = readlink(*argv, srcName, PATH_MAX);
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srcName[nChars] = '\0';
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}
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linkName = argv[argc - 1];
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if (removeoldFlag == TRUE) {
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status = ( unlink(linkName) && errno != ENOENT );
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if (status != 0) {
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perror(linkName);
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if (strlen(linkName) > PATH_MAX) {
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fprintf(stderr, name_too_long, "ln");
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exit FALSE;
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}
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}
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if (symlinkFlag == TRUE)
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status = symlink(*argv, linkName);
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else
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status = link(*argv, linkName);
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if (status != 0) {
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perror(linkName);
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exit FALSE;
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linkIntoDirFlag = isDirectory(linkName, TRUE);
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if ((argc > 3) && !linkIntoDirFlag) {
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fprintf(stderr, not_a_directory, "ln", linkName);
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exit FALSE;
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}
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}
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exit TRUE;
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while (argc-- >= 2) {
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char srcName[PATH_MAX + 1];
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int nChars, status;
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if (strlen(*argv) > PATH_MAX) {
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fprintf(stderr, name_too_long, "ln");
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exit FALSE;
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}
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if (followLinks == FALSE) {
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strcpy(srcName, *argv);
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} else {
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/* Warning! This can silently truncate if > PATH_MAX, but
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I don't think that there can be one > PATH_MAX anyway. */
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nChars = readlink(*argv, srcName, PATH_MAX);
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srcName[nChars] = '\0';
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}
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if (removeoldFlag == TRUE) {
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status = (unlink(linkName) && errno != ENOENT);
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if (status != 0) {
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perror(linkName);
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exit FALSE;
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}
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}
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if (symlinkFlag == TRUE)
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status = symlink(*argv, linkName);
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else
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status = link(*argv, linkName);
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if (status != 0) {
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perror(linkName);
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exit FALSE;
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}
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}
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exit TRUE;
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}
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