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authorGravatar Steven Schubiger <stsc@refcnt.org> 2014-01-25 22:00:57 +0100
committerGravatar Steven Schubiger <stsc@refcnt.org> 2014-01-25 22:00:57 +0100
commit6cc9cae2d6fb9bbfd340243dfa735e1a08fe75cc (patch)
treeb8066beebb69376671468bb216c98368a9eb6591 /colorize.c
parentb7c53ca151ffdaa31b335a21296d02457ab969ea (diff)
downloadcolorize-6cc9cae2d6fb9bbfd340243dfa735e1a08fe75cc.tar.gz
colorize-6cc9cae2d6fb9bbfd340243dfa735e1a08fe75cc.tar.bz2
Display type and name of file in error messages
Diffstat (limited to 'colorize.c')
-rw-r--r--colorize.c48
1 files changed, 41 insertions, 7 deletions
diff --git a/colorize.c b/colorize.c
index d174a11..69aca35 100644
--- a/colorize.c
+++ b/colorize.c
@@ -68,6 +68,8 @@
#define SKIP_LINE_ENDINGS(flags) (((flags) & CR) && ((flags) & LF) ? 2 : 1)
+#define VALID_FILE_TYPE(mode) (S_ISREG (mode) || S_ISLNK (mode) || S_ISFIFO (mode))
+
#define STACK_VAR(ptr) do { \
stack_var (&vars_list, &stacked_vars, stacked_vars, ptr); \
} while (false)
@@ -139,17 +141,21 @@ static const struct color bg_colors[] = {
enum fmts {
FMT_GENERIC,
+ FMT_QUOTE,
FMT_COLOR,
FMT_RANDOM,
FMT_ERROR,
- FMT_FILE
+ FMT_FILE,
+ FMT_TYPE
};
static const char *formats[] = {
"%s", /* generic */
+ "%s `%s' %s", /* quote */
"%s color '%s' %s", /* color */
"%s color '%s' %s '%s'", /* random */
"less than %u bytes %s", /* error */
"%s: %s", /* file */
+ "%s: %s: %s", /* type */
};
enum { FOREGROUND, BACKGROUND };
@@ -197,6 +203,7 @@ static void *realloc_wrap_debug (void *, size_t, const char *, unsigned int);
static void free_wrap (void **);
static char *strdup_wrap (const char *);
static char *str_concat (const char *, const char *);
+static char *get_file_type (mode_t);
static bool has_color_name (const char *, const char *);
static void vfprintf_diag (const char *, ...);
static void vfprintf_fail (const char *, ...);
@@ -451,7 +458,7 @@ process_args (unsigned int arg_cnt, char **arg_strings, bool *bold, const struct
vfprintf_fail (formats[FMT_GENERIC], "hyphen must be preceeded by color string");
}
- ret = stat (color_string, &sb);
+ ret = lstat (color_string, &sb);
/* Ensure that we don't fail if there's a file with one or more
color names in its path. */
@@ -460,6 +467,7 @@ process_args (unsigned int arg_cnt, char **arg_strings, bool *bold, const struct
bool have_file;
unsigned int c;
const char *color = color_string;
+ const mode_t mode = sb.st_mode;
for (c = 1; c <= 2 && *color; c++)
{
@@ -491,9 +499,14 @@ process_args (unsigned int arg_cnt, char **arg_strings, bool *bold, const struct
if (have_file)
{
if (file_string)
- vfprintf_fail (formats[FMT_GENERIC], "file cannot be used as color string");
+ vfprintf_fail (formats[FMT_QUOTE], get_file_type (mode), color_string, "cannot be used as color string");
else
- vfprintf_fail (formats[FMT_GENERIC], "file must be preceeded by color string");
+ {
+ if (VALID_FILE_TYPE (mode))
+ vfprintf_fail (formats[FMT_QUOTE], get_file_type (mode), color_string, "must be preceeded by color string");
+ else
+ vfprintf_fail (formats[FMT_QUOTE], get_file_type (mode), color_string, "is not a valid file type");
+ }
}
}
@@ -606,13 +619,13 @@ process_file_arg (const char *file_string, const char **file, FILE **stream)
int errno, ret;
errno = 0;
- ret = stat (file, &sb);
+ ret = lstat (file, &sb);
if (ret == -1)
vfprintf_fail (formats[FMT_FILE], file, strerror (errno));
- if (!(S_ISREG (sb.st_mode) || S_ISLNK (sb.st_mode) || S_ISFIFO (sb.st_mode)))
- vfprintf_fail (formats[FMT_FILE], file, "unrecognized file type");
+ if (!VALID_FILE_TYPE (sb.st_mode))
+ vfprintf_fail (formats[FMT_TYPE], file, "unrecognized type", get_file_type (sb.st_mode));
errno = 0;
@@ -1011,6 +1024,27 @@ str_concat (const char *str1, const char *str2)
return str;
}
+static char *
+get_file_type (mode_t mode)
+{
+ if (S_ISREG (mode))
+ return "file";
+ else if (S_ISDIR (mode))
+ return "directory";
+ else if (S_ISCHR (mode))
+ return "character device";
+ else if (S_ISBLK (mode))
+ return "block device";
+ else if (S_ISFIFO (mode))
+ return "named pipe";
+ else if (S_ISLNK (mode))
+ return "symbolic link";
+ else if (S_ISSOCK (mode))
+ return "socket";
+ else
+ return "file";
+}
+
static bool
has_color_name (const char *str, const char *name)
{