mdev: set $MDEV correctly for renamed nodes

[oweals/busybox.git] / util-linux / readprofile.c

diff --git a/util-linux/readprofile.c b/util-linux/readprofile.c
index a17b9c8808ec043af39d82e104a882eabe84b6d9..1f5ba2eccae9d9d6d3a3d18b7eccd16bd0bc34f4 100644 (file)
--- a/util-linux/readprofile.c
+++ b/util-linux/readprofile.c
@@ -8,7 +8,7 @@
  */
 
 /*
- * 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL>
+ * 1999-02-22 Arkadiusz Mickiewicz <misiek@pld.ORG.PL>
  * - added Native Language Support
  * 1999-09-01 Stephane Eranian <eranian@cello.hpl.hp.com>
  * - 64bit clean patch
@@ -32,20 +32,20 @@
  * Paul Mundt <lethal@linux-sh.org>.
  */
 
-#include "busybox.h"
+#include "libbb.h"
 #include <sys/utsname.h>
 
 #define S_LEN 128
 
 /* These are the defaults */
-static const char defaultmap[] = "/boot/System.map";
-static const char defaultpro[] = "/proc/profile";
+static const char defaultmap[] ALIGN1 = "/boot/System.map";
+static const char defaultpro[] ALIGN1 = "/proc/profile";
 
-int readprofile_main(int argc, char **argv);
-int readprofile_main(int argc, char **argv)
+int readprofile_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int readprofile_main(int argc UNUSED_PARAM, char **argv)
 {
        FILE *map;
-       const char *mapFile, *proFile, *mult = 0;
+       const char *mapFile, *proFile;
        unsigned long indx = 1;
        size_t len;
        uint64_t add0 = 0;
@@ -55,43 +55,52 @@ int readprofile_main(int argc, char **argv)
        char fn_name[S_LEN], next_name[S_LEN];   /* current and next name */
        char mapline[S_LEN];
        char mode[8];
-       int optAll = 0, optInfo = 0, optReset = 0;
-       int optVerbose = 0, optNative = 0;
-       int optBins = 0, optSub = 0;
        int maplineno = 1;
        int header_printed;
+       int multiplier = 0;
+       unsigned opt;
+       enum {
+               OPT_M = (1 << 0),
+               OPT_m = (1 << 1),
+               OPT_p = (1 << 2),
+               OPT_n = (1 << 3),
+               OPT_a = (1 << 4),
+               OPT_b = (1 << 5),
+               OPT_s = (1 << 6),
+               OPT_i = (1 << 7),
+               OPT_r = (1 << 8),
+               OPT_v = (1 << 9),
+       };
+#define optMult    (opt & OPT_M)
+#define optNative  (opt & OPT_n)
+#define optAll     (opt & OPT_a)
+#define optBins    (opt & OPT_b)
+#define optSub     (opt & OPT_s)
+#define optInfo    (opt & OPT_i)
+#define optReset   (opt & OPT_r)
+#define optVerbose (opt & OPT_v)
 
 #define next (current^1)
 
        proFile = defaultpro;
        mapFile = defaultmap;
 
-       opt_complementary = "nn:aa:bb:ss:ii:rr:vv";
-       getopt32(argc, argv, "M:m:p:nabsirv",
-                       &mult, &mapFile, &proFile,
-                       &optNative, &optAll, &optBins, &optSub,
-                       &optInfo, &optReset, &optVerbose);
+       opt_complementary = "M+"; /* -M N */
+       opt = getopt32(argv, "M:m:p:nabsirv", &multiplier, &mapFile, &proFile);
 
-       if (optReset || mult) {
-               int multiplier, fd, to_write;
+       if (opt & (OPT_M|OPT_r)) { /* mult or reset, or both */
+               int fd, to_write;
 
                /*
                 * When writing the multiplier, if the length of the write is
                 * not sizeof(int), the multiplier is not changed
                 */
-               if (mult) {
-                       multiplier = xatoi_u(mult);
-                       to_write = sizeof(int);
-               } else {
-                       multiplier = 0;
+               to_write = sizeof(int);
+               if (!optMult)
                        to_write = 1;   /* sth different from sizeof(int) */
-               }
 
                fd = xopen(defaultpro, O_WRONLY);
-
-               if (full_write(fd, &multiplier, to_write) != to_write)
-                       bb_perror_msg_and_die("error writing %s", defaultpro);
-
+               xwrite(fd, &multiplier, to_write);
                close(fd);
                return EXIT_SUCCESS;
        }
@@ -99,10 +108,10 @@ int readprofile_main(int argc, char **argv)
        /*
         * Use an fd for the profiling buffer, to skip stdio overhead
         */
-       len = INT_MAX;
-       buf = xmalloc_open_read_close(proFile, &len);
+       len = MAXINT(ssize_t);
+       buf = xmalloc_xopen_read_close(proFile, &len);
        if (!optNative) {
-               int entries = len/sizeof(*buf);
+               int entries = len / sizeof(*buf);
                int big = 0, small = 0, i;
                unsigned *p;
 
@@ -135,7 +144,7 @@ int readprofile_main(int argc, char **argv)
 
        total = 0;
 
-       map = xfopen(mapFile, "r");
+       map = xfopen_for_read(mapFile);
 
        while (fgets(mapline, S_LEN, map)) {
                if (sscanf(mapline, "%llx %s %s", &fn_add, mode, fn_name) != 3)
@@ -190,8 +199,9 @@ int readprofile_main(int argc, char **argv)
                if (optBins) {
                        if (optVerbose || this > 0)
                                printf("  total\t\t\t\t%u\n", this);
-               } else if ((this || optAll) &&
-                          (fn_len = next_add-fn_add) != 0) {
+               } else if ((this || optAll)
+                       && (fn_len = next_add-fn_add) != 0
+               ) {
                        if (optVerbose)
                                printf("%016llx %-40s %6i %8.4f\n", fn_add,
                                       fn_name, this, this/(double)fn_len);