diff options
Diffstat (limited to 'stdlib')
| -rw-r--r-- | stdlib/isomac.c | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/stdlib/isomac.c b/stdlib/isomac.c index ab63d1b..f18e8d9 100644 --- a/stdlib/isomac.c +++ b/stdlib/isomac.c @@ -52,7 +52,7 @@ preprocessor has something similar to gcc's -dM option. Tune PRINT_MACROS in this case. This program assumes headers are found under /usr/include and that there is a writable /tmp directory. - Tune SYSTEM_INCLUDE and TMPFILE if your system differs. + Tune SYSTEM_INCLUDE if your system differs. #define BROKEN_SYSTEM if system(NULL) bombs -- one more violation of ISO C, by the way. @@ -75,9 +75,10 @@ #include <stdlib.h> #include <string.h> -#define TMPFILE "/tmp/macros" #define HEADER_MAX 256 +static const char *macrofile; + /* ISO C header names including Amendment 1 (without ".h" suffix). */ static char *header[] = { @@ -247,8 +248,10 @@ get_null_defines (void) FILE *input; int first = 1; + macrofile = tmpnam (NULL); + command = malloc (sizeof fmt + sizeof "/dev/null" + 2 * strlen (CC) - + strlen (INC) + strlen (TMPFILE)); + + strlen (INC) + strlen (macrofile)); if (command == NULL) { @@ -256,7 +259,7 @@ get_null_defines (void) exit (1); } - sprintf (command, fmt, "/dev/null", CC, INC, CC, TMPFILE); + sprintf (command, fmt, "/dev/null", CC, INC, CC, macrofile); if (system (command)) { @@ -264,11 +267,11 @@ get_null_defines (void) return NULL; } free (command); - input = fopen (TMPFILE, "r"); + input = fopen (macrofile, "r"); if (input == NULL) { - printf ("Could not read %s: ", TMPFILE); + printf ("Could not read %s: ", macrofile); perror (NULL); return NULL; } @@ -321,7 +324,7 @@ get_null_defines (void) } result[result_len] = NULL; fclose (input); - remove (TMPFILE); + remove (macrofile); return (const char **) result; } @@ -335,7 +338,7 @@ check_header (const char *file_name, const char **except) int result = 0; command = malloc (sizeof fmt + strlen (file_name) + 2 * strlen (CC) - + strlen (INC) + strlen (TMPFILE)); + + strlen (INC) + strlen (macrofile)); if (command == NULL) { @@ -344,7 +347,7 @@ check_header (const char *file_name, const char **except) } puts (file_name); - sprintf (command, fmt, file_name, CC, INC, CC, TMPFILE); + sprintf (command, fmt, file_name, CC, INC, CC, macrofile); if (system (command)) { @@ -352,11 +355,11 @@ check_header (const char *file_name, const char **except) result = 1; } free (command); - input = fopen (TMPFILE, "r"); + input = fopen (macrofile, "r"); if (input == NULL) { - printf ("Could not read %s: ", TMPFILE); + printf ("Could not read %s: ", macrofile); perror (NULL); return 1; } @@ -430,7 +433,7 @@ check_header (const char *file_name, const char **except) } } fclose (input); - remove (TMPFILE); + remove (macrofile); return result; } |