mirror of https://github.com/hak5/openwrt-owl.git
170 lines
5.0 KiB
Diff
170 lines
5.0 KiB
Diff
From 16e97e9741a02f6c2c29b3da45b62ac798d76403 Mon Sep 17 00:00:00 2001
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From: Andreas Bombe <aeb@debian.org>
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Date: Wed, 28 Jan 2015 15:07:18 +0100
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Subject: [PATCH 04/14] Make all char* that may take literals const
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Every char* variable or function argument that may be given a literal
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string is now made const. Additionally add -Wwrite-strings to CFLAGS to
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enable a warning where const would be missing.
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Signed-off-by: Andreas Bombe <aeb@debian.org>
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---
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Makefile | 2 +-
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src/boot.c | 4 ++--
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src/check.c | 2 +-
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src/common.c | 6 +++---
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src/common.h | 6 +++---
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src/mkfs.fat.c | 8 +++++---
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6 files changed, 15 insertions(+), 13 deletions(-)
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diff --git a/Makefile b/Makefile
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index 81256ef..3cbdb76 100644
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--- a/Makefile
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+++ b/Makefile
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@@ -30,7 +30,7 @@ MANDIR = $(PREFIX)/share/man
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#OPTFLAGS = -O2 -fomit-frame-pointer -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64
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OPTFLAGS = -O2 -fomit-frame-pointer -D_GNU_SOURCE $(shell getconf LFS_CFLAGS)
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#WARNFLAGS = -Wall -pedantic -std=c99
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-WARNFLAGS = -Wall -Wextra -Wno-sign-compare -Wno-missing-field-initializers -Wmissing-prototypes -Wstrict-prototypes
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+WARNFLAGS = -Wall -Wextra -Wno-sign-compare -Wno-missing-field-initializers -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings
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DEBUGFLAGS = -g
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CFLAGS += $(OPTFLAGS) $(WARNFLAGS) $(DEBUGFLAGS)
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diff --git a/src/boot.c b/src/boot.c
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index 5b3825c..be7bfb7 100644
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--- a/src/boot.c
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+++ b/src/boot.c
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@@ -46,7 +46,7 @@
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static struct {
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__u8 media;
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- char *descr;
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+ const char *descr;
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} mediabytes[] = {
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{
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0xf0, "5.25\" or 3.5\" HD floppy"}, {
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@@ -64,7 +64,7 @@ static struct {
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#define GET_UNALIGNED_W(f) \
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( (__u16)f[0] | ((__u16)f[1]<<8) )
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-static char *get_media_descr(unsigned char media)
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+static const char *get_media_descr(unsigned char media)
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{
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int i;
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diff --git a/src/check.c b/src/check.c
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index daa6d69..488f715 100644
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--- a/src/check.c
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+++ b/src/check.c
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@@ -464,7 +464,7 @@ static void rename_file(DOS_FILE * file)
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static int handle_dot(DOS_FS * fs, DOS_FILE * file, int dots)
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{
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- char *name;
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+ const char *name;
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name =
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strncmp((const char *)file->dir_ent.name, MSDOS_DOT,
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diff --git a/src/common.c b/src/common.c
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index af222a2..9d11193 100644
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--- a/src/common.c
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+++ b/src/common.c
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@@ -37,7 +37,7 @@ typedef struct _link {
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struct _link *next;
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} LINK;
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-void die(char *msg, ...)
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+void die(const char *msg, ...)
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{
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va_list args;
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@@ -48,7 +48,7 @@ void die(char *msg, ...)
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exit(1);
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}
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-void pdie(char *msg, ...)
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+void pdie(const char *msg, ...)
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{
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va_list args;
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@@ -96,7 +96,7 @@ int min(int a, int b)
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return a < b ? a : b;
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}
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-char get_key(char *valid, char *prompt)
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+char get_key(const char *valid, const char *prompt)
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{
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int ch, okay;
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diff --git a/src/common.h b/src/common.h
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index 8508602..b127f63 100644
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--- a/src/common.h
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+++ b/src/common.h
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@@ -25,11 +25,11 @@
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#ifndef _COMMON_H
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#define _COMMON_H
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-void die(char *msg, ...) __attribute((noreturn));
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+void die(const char *msg, ...) __attribute((noreturn));
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/* Displays a prinf-style message and terminates the program. */
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-void pdie(char *msg, ...) __attribute((noreturn));
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+void pdie(const char *msg, ...) __attribute((noreturn));
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/* Like die, but appends an error message according to the state of errno. */
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@@ -50,7 +50,7 @@ int min(int a, int b);
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/* Returns the smaller integer value of a and b. */
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-char get_key(char *valid, char *prompt);
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+char get_key(const char *valid, const char *prompt);
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/* Displays PROMPT and waits for user input. Only characters in VALID are
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accepted. Terminates the program on EOF. Returns the character. */
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diff --git a/src/mkfs.fat.c b/src/mkfs.fat.c
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index 1f702ad..a3dff54 100644
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--- a/src/mkfs.fat.c
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+++ b/src/mkfs.fat.c
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@@ -250,7 +250,7 @@ char dummy_boot_code[BOOTCODE_SIZE] = "\x0e" /* push cs */
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/* Global variables - the root of all evil :-) - see these and weep! */
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-static char *program_name = "mkfs.fat"; /* Name of the program */
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+static const char *program_name = "mkfs.fat"; /* Name of the program */
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static char *device_name = NULL; /* Name of the device on which to create the filesystem */
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static int atari_format = 0; /* Use Atari variation of MS-DOS FS format */
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static int check = FALSE; /* Default to no readablity checking */
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@@ -1412,6 +1412,7 @@ int main(int argc, char **argv)
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int create = 0;
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uint64_t cblocks = 0;
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int min_sector_size;
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+ int bad_block_count = 0;
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if (argc && *argv) { /* What's the program name? */
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char *p;
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@@ -1653,16 +1654,17 @@ int main(int argc, char **argv)
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fprintf(stderr, "Warning: block count mismatch: ");
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fprintf(stderr, "found %llu but assuming %llu.\n", (unsigned long long)cblocks, (unsigned long long)blocks);
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}
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+ if (*tmp)
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+ bad_block_count = 1;
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} else if (optind == argc - 1) { /* Or use value found */
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if (create)
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die("Need intended size with -C.");
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blocks = cblocks;
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- tmp = "";
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} else {
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fprintf(stderr, "No device specified!\n");
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usage();
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}
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- if (*tmp) {
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+ if (bad_block_count) {
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printf("Bad block count : %s\n", argv[optind + 1]);
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usage();
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}
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--
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1.9.1
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