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+ busybox --install [-s]
is functional (but disabled in busybox.def.h by default) Someone email the guy who originally wanted this.
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@ -376,6 +376,31 @@ static char* install_dir[] = {
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/* abstract link() */
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typedef int (*__link_f)(const char *, const char *);
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/*
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* Where in the filesystem is this busybox?
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* [return]
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* malloc'd string w/ full pathname of busybox's location
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* NULL on failure
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*/
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static char *busybox_fullpath()
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{
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pid_t pid;
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char path[256];
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char proc[256];
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int len;
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pid = getpid();
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sprintf(proc, "/proc/%d/exe", pid);
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len = readlink(proc, path, 256);
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if (len != -1) {
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path[len] = 0;
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} else {
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fprintf(stderr, "busybox : %s : %s\n", proc, strerror(errno));
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return NULL;
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}
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return strdup(path);
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}
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/* create (sym)links for each applet */
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static int install_links(const char *busybox, int use_symbolic_links)
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{
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@ -394,14 +419,13 @@ static int install_links(const char *busybox, int use_symbolic_links)
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install_dir[applets[i].location],
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applets[i].name
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);
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#if 0
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#if 1
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rc |= Link(busybox, command);
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#else
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puts(command);
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#endif
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if (rc) {
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fprintf(stderr,"busybox : %s : %s\n", command, strerror(errno));
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break;
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}
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}
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return rc;
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@ -427,6 +451,8 @@ int main(int argc, char **argv)
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*/
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if (argc > 1 && (strcmp(argv[1], "--install") == 0)) {
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int use_symbolic_links = 0;
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int rc = 0;
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char *busybox;
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/* to use symlinks, or not to use symlinks... */
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if (argc > 2) {
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@ -434,13 +460,16 @@ int main(int argc, char **argv)
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use_symbolic_links = 1;
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}
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}
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/*
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* FIXME :
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* I need a clever unix trick that'll tell
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* me where to find the currently running
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* busybox binary
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*/
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return install_links("/bin/busybox", use_symbolic_links);
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/* link */
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busybox = busybox_fullpath();
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if (busybox) {
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install_links(busybox, use_symbolic_links);
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free(busybox);
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} else {
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rc = 1;
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}
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return rc;
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}
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#endif /* BB_FEATURE_INSTALLER */
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47
busybox.c
47
busybox.c
@ -376,6 +376,31 @@ static char* install_dir[] = {
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/* abstract link() */
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typedef int (*__link_f)(const char *, const char *);
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/*
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* Where in the filesystem is this busybox?
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* [return]
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* malloc'd string w/ full pathname of busybox's location
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* NULL on failure
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*/
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static char *busybox_fullpath()
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{
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pid_t pid;
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char path[256];
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char proc[256];
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int len;
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pid = getpid();
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sprintf(proc, "/proc/%d/exe", pid);
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len = readlink(proc, path, 256);
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if (len != -1) {
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path[len] = 0;
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} else {
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fprintf(stderr, "busybox : %s : %s\n", proc, strerror(errno));
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return NULL;
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}
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return strdup(path);
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}
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/* create (sym)links for each applet */
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static int install_links(const char *busybox, int use_symbolic_links)
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{
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@ -394,14 +419,13 @@ static int install_links(const char *busybox, int use_symbolic_links)
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install_dir[applets[i].location],
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applets[i].name
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);
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#if 0
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#if 1
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rc |= Link(busybox, command);
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#else
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puts(command);
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#endif
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if (rc) {
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fprintf(stderr,"busybox : %s : %s\n", command, strerror(errno));
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break;
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}
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}
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return rc;
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@ -427,6 +451,8 @@ int main(int argc, char **argv)
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*/
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if (argc > 1 && (strcmp(argv[1], "--install") == 0)) {
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int use_symbolic_links = 0;
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int rc = 0;
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char *busybox;
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/* to use symlinks, or not to use symlinks... */
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if (argc > 2) {
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@ -434,13 +460,16 @@ int main(int argc, char **argv)
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use_symbolic_links = 1;
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}
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}
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/*
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* FIXME :
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* I need a clever unix trick that'll tell
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* me where to find the currently running
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* busybox binary
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*/
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return install_links("/bin/busybox", use_symbolic_links);
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/* link */
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busybox = busybox_fullpath();
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if (busybox) {
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install_links(busybox, use_symbolic_links);
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free(busybox);
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} else {
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rc = 1;
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}
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return rc;
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}
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#endif /* BB_FEATURE_INSTALLER */
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@ -232,8 +232,8 @@
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//
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// Enable busybox --install [-s]
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// to create links (or symlinks) for all the commands that are
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// compiled into the binary.
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#define BB_FEATURE_INSTALLER
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// compiled into the binary. (needs /proc filesystem)
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// #define BB_FEATURE_INSTALLER
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//
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// End of Features List
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//
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