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* source.c (is_regular_file): New function.

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(openp): Check wether file to open is a regular file
        to avoid opening directories.
This commit is contained in:
Joel Brobecker 2002-04-23 11:09:10 +00:00
parent 5019bb5448
commit 1da1a19239
2 changed files with 30 additions and 4 deletions
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6
gdb/ChangeLog
View File

@ -1,3 +1,9 @@
2002-04-23 J. Brobecker <brobecker@gnat.com>
* source.c (is_regular_file): New function.
(openp): Check wether file to open is a regular file
to avoid opening directories.
2002-04-22 Jason Thorpe <thorpej@wasabisystems.com>
* findvar.c (extract_signed_integer): Cast printf argument

28
gdb/source.c
View File

@ -503,6 +503,23 @@ source_info (char *ignore, int from_tty)
}
/* Return True if the file NAME exists and is a regular file */
static int
is_regular_file (const char *name)
{
struct stat st;
const int status = stat (name, &st);
/* Stat should never fail except when the file does not exist.
If stat fails, analyze the source of error and return True
unless the file does not exist, to avoid returning false results
on obscure systems where stat does not work as expected.
*/
if (status != 0)
return (errno != ENOENT);
return S_ISREG (st.st_mode);
}
/* Open a file named STRING, searching path PATH (dir names sep by some char)
using mode MODE and protection bits PROT in the calls to open.
@ -543,7 +560,7 @@ openp (const char *path, int try_cwd_first, const char *string,
mode |= O_BINARY;
#endif
if (try_cwd_first || IS_ABSOLUTE_PATH (string))
if ((try_cwd_first || IS_ABSOLUTE_PATH (string)) && is_regular_file (string))
{
int i;
filename = alloca (strlen (string) + 1);
@ -601,9 +618,12 @@ openp (const char *path, int try_cwd_first, const char *string,
strcat (filename + len, SLASH_STRING);
strcat (filename, string);
fd = open (filename, mode);
if (fd >= 0)
break;
if (is_regular_file (filename))
{
fd = open (filename, mode);
if (fd >= 0)
break;
}
}
done: