fbset: fix buglet where we were using wrong pointer
authorvda <vda@69ca8d6d-28ef-0310-b511-8ec308f3f277>
Tue, 6 Nov 2007 03:05:54 +0000 (03:05 +0000)
committervda <vda@69ca8d6d-28ef-0310-b511-8ec308f3f277>
Tue, 6 Nov 2007 03:05:54 +0000 (03:05 +0000)
readahead: stop using stdio.h
*: style fixes

git-svn-id: svn://busybox.net/trunk/busybox@20374 69ca8d6d-28ef-0310-b511-8ec308f3f277

14 files changed:
coreutils/mknod.c
editors/diff.c
init/init.c
libbb/device_open.c
libbb/dump.c
libbb/obscure.c
loginutils/getty.c
miscutils/devfsd.c
miscutils/hdparm.c
miscutils/readahead.c
runit/runit_lib.c
util-linux/dmesg.c
util-linux/fbset.c
util-linux/fdisk.c

index ee539e3..55f5310 100644 (file)
@@ -28,23 +28,29 @@ int mknod_main(int argc, char **argv)
        argv += optind;
        argc -= optind;
 
-       if ((argc >= 2) && ((name = strchr(modes_chars, argv[1][0])) != NULL)) {
-               mode |= modes_cubp[(int)(name[4])];
-
-               dev = 0;
-               if ((*name != 'p') && ((argc -= 2) == 2)) {
-                       /* Autodetect what the system supports; these macros should
-                        * optimize out to two constants. */
-                       dev = makedev(xatoul_range(argv[2], 0, major(UINT_MAX)),
-                                     xatoul_range(argv[3], 0, minor(UINT_MAX)));
-               }
+       if (argc >= 2) {
+               name = strchr(modes_chars, argv[1][0]);
+               if (name != NULL) {
+                       mode |= modes_cubp[(int)(name[4])];
+
+                       dev = 0;
+                       if (*name != 'p') {
+                               argc -= 2;
+                               if (argc == 2) {
+                                       /* Autodetect what the system supports; these macros should
+                                        * optimize out to two constants. */
+                                       dev = makedev(xatoul_range(argv[2], 0, major(UINT_MAX)),
+                                                     xatoul_range(argv[3], 0, minor(UINT_MAX)));
+                               }
+                       }
 
-               if (argc == 2) {
-                       name = *argv;
-                       if (mknod(name, mode, dev) == 0) {
-                               return EXIT_SUCCESS;
+                       if (argc == 2) {
+                               name = *argv;
+                               if (mknod(name, mode, dev) == 0) {
+                                       return EXIT_SUCCESS;
+                               }
+                               bb_simple_perror_msg_and_die(name);
                        }
-                       bb_simple_perror_msg_and_die(name);
                }
        }
        bb_show_usage();
index c158c87..64b7daa 100644 (file)
@@ -588,7 +588,9 @@ static void check(FILE * f1, FILE * f2)
                        while (1) {
                                ctold++;
                                ctnew++;
-                               if ((c = getc(f1)) != (d = getc(f2))) {
+                               c = getc(f1);
+                               d = getc(f2);
+                               if (c != d) {
                                        J[i] = 0;
                                        if (c != '\n' && c != EOF)
                                                ctold += skipline(f1);
@@ -668,7 +670,8 @@ static void fetch(long *f, int a, int b, FILE * lb, int ch)
                }
                col = 0;
                for (j = 0, lastc = '\0'; j < nc; j++, lastc = c) {
-                       if ((c = getc(lb)) == EOF) {
+                       c = getc(lb);
+                       if (c == EOF) {
                                printf("\n\\ No newline at end of file\n");
                                return;
                        }
index 409e8c4..4b543a4 100644 (file)
@@ -369,7 +369,8 @@ static pid_t run(const struct init_action *a)
        if (a->action & (SYSINIT | WAIT | CTRLALTDEL | SHUTDOWN | RESTART)) {
 
                /* Now fork off another process to just hang around */
-               if ((pid = fork()) < 0) {
+               pid = fork();
+               if (pid) {
                        message(L_LOG | L_CONSOLE, "Can't fork");
                        _exit(1);
                }
@@ -388,7 +389,8 @@ static pid_t run(const struct init_action *a)
                                _exit(0);
 
                        /* Use a temporary process to steal the controlling tty. */
-                       if ((pid = fork()) < 0) {
+                       pid = fork();
+                       if (pid < 0) {
                                message(L_LOG | L_CONSOLE, "Can't fork");
                                _exit(1);
                        }
index 2b35ad8..6907e98 100644 (file)
 /* try to open up the specified device */
 int device_open(const char *device, int mode)
 {
-       int m, f, fd = -1;
+       int m, f, fd;
 
        m = mode | O_NONBLOCK;
 
        /* Retry up to 5 times */
        /* TODO: explain why it can't be considered insane */
-       for (f = 0; f < 5; f++)
-               if ((fd = open(device, m, 0600)) >= 0)
+       for (f = 0; f < 5; f++) {
+               fd = open(device, m, 0600);
+               if (fd >= 0)
                        break;
+       }
        if (fd < 0)
                return fd;
        /* Reset original flags. */
index 829050d..71e35c6 100644 (file)
@@ -59,7 +59,8 @@ int bb_dump_size(FS * fs)
                                prec = atoi(fmt);
                                while (isdigit(*++fmt));
                        }
-                       if (!(p = strchr(size_conv_str + 12, *fmt))) {
+                       p = strchr(size_conv_str + 12, *fmt);
+                       if (!p) {
                                if (*fmt == 's') {
                                        bcnt += prec;
                                } else if (*fmt == '_') {
@@ -162,7 +163,8 @@ static void rewrite(FS * fs)
                        DO_INT_CONV:
                                {
                                        const char *e;
-                                       if (!(e = strchr(lcc, *p1))) {
+                                       e = strchr(lcc, *p1);
+                                       if (!e) {
                                                goto DO_BAD_CONV_CHAR;
                                        }
                                        pr->flags = F_INT;
index 2599095..5cc9062 100644 (file)
@@ -130,7 +130,8 @@ static const char *obscure_msg(const char *old_p, const char *new_p, const struc
                c = 0;
                p = new_p;
                while (1) {
-                       if ((p = strchr(p, new_p[i])) == NULL) {
+                       p = strchr(p, new_p[i]);
+                       if (p == NULL) {
                                break;
                        }
                        c++;
index bc735d0..d32d189 100644 (file)
@@ -166,8 +166,10 @@ static void parse_speeds(struct options *op, char *arg)
 
        debug("entered parse_speeds\n");
        for (cp = strtok(arg, ","); cp != 0; cp = strtok((char *) 0, ",")) {
-               if ((op->speeds[op->numspeed++] = bcode(cp)) <= 0)
+               op->speeds[op->numspeed] = bcode(cp);
+               if (op->speeds[op->numspeed] <= 0)
                        bb_error_msg_and_die("bad speed: %s", cp);
+               op->numspeed++;
                if (op->numspeed > MAX_SPEED)
                        bb_error_msg_and_die("too many alternate speeds");
        }
index cd94869..9990142 100644 (file)
@@ -465,7 +465,8 @@ static void read_config_file(char *path, int optional, unsigned long *event_mask
                        free(p);
                        return;
                }
-               if ((fp = fopen(path, "r")) != NULL) {
+               fp = fopen(path, "r");
+               if (fp != NULL) {
                        while (fgets(buf, STRING_LENGTH, fp) != NULL) {
                                /*  Skip whitespace  */
                                line = buf;
@@ -560,7 +561,8 @@ static void process_config_line(const char *line, unsigned long *event_mask)
                case 4: /* "PERMISSIONS" */
                        new->action.what = AC_PERMISSIONS;
                        /*  Get user and group  */
-                       if ((ptr = strchr(p[0], '.')) == NULL) {
+                       ptr = strchr(p[0], '.');
+                       if (ptr == NULL) {
                                msg = "UID.GID";
                                goto process_config_line_err; /*"missing '.' in UID.GID"*/
                        }
@@ -979,8 +981,9 @@ static int copy_inode(const char *destpath, const struct stat *dest_stat,
        if ((source_stat->st_mode & S_IFMT) ==(dest_stat->st_mode & S_IFMT)) {
                /*  Same type  */
                if (S_ISLNK(source_stat->st_mode)) {
-                       if ((source_len = readlink(sourcepath, source_link, STRING_LENGTH - 1)) < 0
-                               || (dest_len   = readlink(destpath  , dest_link  , STRING_LENGTH - 1)) < 0
+                       source_len = readlink(sourcepath, source_link, STRING_LENGTH - 1);
+                       if ((source_len < 0)
+                        || (dest_len = readlink(destpath, dest_link, STRING_LENGTH - 1)) < 0
                        )
                                return FALSE;
                        source_link[source_len] = '\0';
@@ -999,7 +1002,8 @@ static int copy_inode(const char *destpath, const struct stat *dest_stat,
        unlink(destpath);
        switch (source_stat->st_mode & S_IFMT) {
                case S_IFSOCK:
-                       if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
+                       fd = socket(AF_UNIX, SOCK_STREAM, 0);
+                       if (fd < 0)
                                break;
                        un_addr.sun_family = AF_UNIX;
                        snprintf(un_addr.sun_path, sizeof(un_addr.sun_path), "%s", destpath);
@@ -1009,14 +1013,16 @@ static int copy_inode(const char *destpath, const struct stat *dest_stat,
                                break;
                        goto do_chown;
                case S_IFLNK:
-                       if ((val = readlink(sourcepath, symlink_val, STRING_LENGTH - 1)) < 0)
+                       val = readlink(sourcepath, symlink_val, STRING_LENGTH - 1);
+                       if (val < 0)
                                break;
                        symlink_val[val] = '\0';
                        if (symlink(symlink_val, destpath) == 0)
                                return TRUE;
                        break;
                case S_IFREG:
-                       if ((fd = open(destpath, O_RDONLY | O_CREAT, new_mode & ~S_IFMT)) < 0)
+                       fd = open(destpath, O_RDONLY | O_CREAT, new_mode & ~S_IFMT);
+                       if (fd < 0)
                                break;
                        close(fd);
                        if (chmod(destpath, new_mode & ~S_IFMT) != 0)
@@ -1082,7 +1088,7 @@ static int get_uid_gid(int flag, const char *string)
        if (isdigit(string[0]) ||((string[0] == '-') && isdigit(string[1])))
                return atoi(string);
 
-       if (flag == UID && (pw_ent  = getpwnam(string)) != NULL)
+       if (flag == UID && (pw_ent = getpwnam(string)) != NULL)
                return pw_ent->pw_uid;
 
        if (flag == GID && (grp_ent = getgrnam(string)) != NULL)
@@ -1197,7 +1203,8 @@ static void dir_operation(int type, const char * dir_name, int var, unsigned lon
        struct dirent *de;
        char *path;
 
-       if ((dp = warn_opendir(dir_name)) == NULL)
+       dp = warn_opendir(dir_name);
+       if (dp == NULL)
                return;
 
        while ((de = readdir(dp)) != NULL) {
@@ -1581,7 +1588,8 @@ int st_expr_expand(char *output, unsigned int length, const char *input,
                                ch = input[1];
                                if (isspace(ch) ||(ch == '/') ||(ch == '\0')) {
                                        /* User's own home directory: leave separator for next time */
-                                       if ((env = getenv("HOME")) == NULL) {
+                                       env = getenv("HOME");
+                                       if (env == NULL) {
                                                info_logger(LOG_INFO, bb_msg_variable_not_found, "HOME");
                                                return FALSE;
                                        }
@@ -1600,7 +1608,8 @@ int st_expr_expand(char *output, unsigned int length, const char *input,
                                        goto st_expr_expand_out;
                                safe_memcpy(tmp, input, len);
                                input = ptr - 1;
-                               if ((pwent = getpwnam(tmp)) == NULL) {
+                               pwent = getpwnam(tmp);
+                               if (pwent == NULL) {
                                        info_logger(LOG_INFO, "no pwent for: %s", tmp);
                                        return FALSE;
                                }
@@ -1680,7 +1689,8 @@ static const char *expand_variable(char *buffer, unsigned int length,
 
                safe_memcpy(tmp, input, len);
                input = ptr - 1;
-               if ((env = get_variable_v2(tmp, func, info)) == NULL) {
+               env = get_variable_v2(tmp, func, info);
+               if (env == NULL) {
                        info_logger(LOG_INFO, bb_msg_variable_not_found, tmp);
                        return NULL;
                }
@@ -1740,7 +1750,8 @@ static const char *expand_variable(char *buffer, unsigned int length,
        }
        --ptr;
        /*  At this point ptr should point to closing brace of "${var:-word}"  */
-       if ((env = get_variable_v2(tmp, func, info)) != NULL) {
+       env = get_variable_v2(tmp, func, info);
+       if (env != NULL) {
                /*  Found environment variable, so skip the input to the closing brace
                        and return the variable  */
                input = ptr;
index 93b1aac..03a30e6 100644 (file)
@@ -1111,7 +1111,8 @@ static void identify(uint16_t *val)
        /* reset result */
        jj = val[HWRST_RSLT];
        if ((jj & VALID) == VALID_VAL) {
-               if (!(oo = (jj & RST0)))
+               oo = (jj & RST0);
+               if (!oo)
                        jj >>= 8;
                if ((jj & DEV_DET) == JUMPER_VAL)
                        strng = " determined by the jumper";
index 647eb31..7b375cf 100644 (file)
 int readahead_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int readahead_main(int argc, char **argv)
 {
-       FILE *f;
        int retval = EXIT_SUCCESS;
 
        if (argc == 1) bb_show_usage();
 
        while (*++argv) {
-               if ((f = fopen_or_warn(*argv, "r")) != NULL) {
-                       int r, fd=fileno(f);
-
-                       r = readahead(fd, 0, fdlength(fd));
-                       fclose(f);
+               int fd = open_or_warn(*argv, O_RDONLY);
+               if (fd >= 0) {
+                       int r = readahead(fd, 0, fdlength(fd));
+                       close(fd);
                        if (r >= 0) continue;
                }
                retval = EXIT_FAILURE;
index 2ed9054..bedd540 100644 (file)
@@ -233,19 +233,23 @@ unsigned pmatch(const char *p, const char *s, unsigned len)
                if (!c) return !len;
                switch (c) {
                case '*':
-                       if (!(c = *p)) return 1;
+                       c = *p;
+                       if (!c) return 1;
                        for (;;) {
                                if (!len) return 0;
                                if (*s == c) break;
-                               ++s; --len;
+                               ++s;
+                               --len;
                        }
                        continue;
                case '+':
-                       if ((c = *p++) != *s) return 0;
+                       c = *p++;
+                       if (c != *s) return 0;
                        for (;;) {
                                if (!len) return 1;
                                if (*s != c) break;
-                               ++s; --len;
+                               ++s;
+                               --len;
                        }
                        continue;
                        /*
@@ -260,7 +264,8 @@ unsigned pmatch(const char *p, const char *s, unsigned len)
                default:
                        if (!len) return 0;
                        if (*s != c) return 0;
-                       ++s; --len;
+                       ++s;
+                       --len;
                        continue;
                }
        }
index 1adb0fc..90b327b 100644 (file)
@@ -27,7 +27,8 @@ int dmesg_main(int argc, char **argv)
 
                len = (flags & 2) ? xatoul_range(size, 2, INT_MAX) : 16384;
                buf = xmalloc(len);
-               if (0 > (len = klogctl(3 + (flags & 1), buf, len)))
+               len = klogctl(3 + (flags & 1), buf, len);
+               if (len < 0)
                        bb_perror_msg_and_die("klogctl");
 
                // Skip <#> at the start of lines, and make sure we end with a newline.
index f67a283..d616abd 100644 (file)
@@ -181,10 +181,11 @@ static int readmode(struct fb_var_screeninfo *base, const char *fn,
        f = xfopen(fn, "r");
        while (!feof(f)) {
                fgets(buf, sizeof(buf), f);
-               if (!(p = strstr(buf, "mode ")) && !(p = strstr(buf, "mode\t")))
+               p = strstr(buf, "mode ");
+               if (!p && !(p = strstr(buf, "mode\t")))
                        continue;
-               p += 5;
-               if (!(p = strstr(buf, mode)))
+               p = strstr(p + 5, mode);
+               if (!p)
                        continue;
                p += strlen(mode);
                if (!isspace(*p) && (*p != 0) && (*p != '"')
@@ -193,7 +194,8 @@ static int readmode(struct fb_var_screeninfo *base, const char *fn,
 
                while (!feof(f)) {
                        fgets(buf, sizeof(buf), f);
-                       if ((p = strstr(buf, "geometry "))) {
+                       p = strstr(buf, "geometry ");
+                       if (p) {
                                p += 9;
                                /* FIXME: catastrophic on arches with 64bit ints */
                                sscanf(p, "%d %d %d %d %d",
index 01c01bd..3b60847 100644 (file)
@@ -1837,7 +1837,8 @@ wrong_p_order(int *prev)
                        last_p_start_pos = 0;
                }
                pe = &ptes[i];
-               if ((p = pe->part_table)->sys_ind) {
+               p = pe->part_table;
+               if (p->sys_ind) {
                        p_start_pos = get_partition_start(pe);
 
                        if (last_p_start_pos > p_start_pos) {