diff options
| author | Patrick McDermott <patrick.mcdermott@libiquity.com> | 2023-07-05 16:50:41 (EDT) |
|---|---|---|
| committer | Patrick McDermott <patrick.mcdermott@libiquity.com> | 2023-07-05 16:50:41 (EDT) |
| commit | 557542ea042bf7c369b8e68321ad8cac6f849456 (patch) | |
| tree | 73b397e7fadf716f323bcb0d505273229c832a83 | |
| parent | d5ce0abc3ece376f2dc6571310d6944fc71bcb0b (diff) | |
mknod: Print system error strings
| -rw-r--r-- | configure.ac | 4 | ||||
| -rw-r--r-- | helpers/mknod.c | 26 |
2 files changed, 21 insertions, 9 deletions
diff --git a/configure.ac b/configure.ac index bb5bad8..76c6a07 100644 --- a/configure.ac +++ b/configure.ac @@ -47,8 +47,8 @@ AC_CHECK_FUNCS( fread free fscanf fseek fstat fwrite getgrgid getpwuid \ localtime lstat malloc memcmp memcpy memset mkdir mkfifo open \ printf puts readlink scandir sleep snprintf sprintf stat \ - strchr strcmp strcpy strftime strlen strncpy strtol unlink \ - vfprintf + strchr strcmp strcpy strerror strftime strlen strncpy strtol \ + unlink vfprintf ], [], [funcs_missing=true]) diff --git a/helpers/mknod.c b/helpers/mknod.c index e9e9737..10b0e1b 100644 --- a/helpers/mknod.c +++ b/helpers/mknod.c @@ -70,6 +70,18 @@ _err(const char *fmt, ...) fputc('\n', stderr); } +static void __attribute__((format(__printf__, 1, 2))) +_errno(const char *fmt, ...) +{ + va_list ap; + + fprintf(stderr, "%s: ", _program_name); + va_start(ap, fmt); + vfprintf(stderr, fmt, ap); + va_end(ap); + fprintf(stderr, ": %s\n", strerror(errno)); +} + static int _get_work_area(int argc, char *argv[], char **work_area) { @@ -199,7 +211,7 @@ main(int argc, char *argv[]) return EXIT_FAILURE; } if (mkfifo(name, mode) != 0) { - _err(_("Failed to create link \"%s\""), name); + _errno(_("Failed to create link \"%s\""), name); return EXIT_FAILURE; } return EXIT_SUCCESS; @@ -232,7 +244,7 @@ main(int argc, char *argv[]) */ fd = open(name, O_CREAT | O_EXCL, mode); if (fd < 0 || close(fd) < 0) { - _err(_("Failed to create node")); + _errno(_("Failed to create node")); free(specials_file_name); return EXIT_FAILURE; } @@ -245,7 +257,7 @@ main(int argc, char *argv[]) goto opened; } } - _err(_("Failed to lock specials file")); + _errno(_("Failed to lock specials file")); free(specials_file_name); unlink(name); return EXIT_FAILURE; @@ -255,7 +267,7 @@ main(int argc, char *argv[]) specials_file = fopen(specials_file_name, "a"); if (specials_file == NULL) { - _err(_("Failed to open specials file stream")); + _errno(_("Failed to open specials file stream")); unlink(specials_lock_name); free(specials_file_name); unlink(name); @@ -264,7 +276,7 @@ main(int argc, char *argv[]) /* If "specials" is empty, write header. */ if (fstat(fileno(specials_file), &stat_buf) != 0) { - _err(_("Failed to stat specials file")); + _errno(_("Failed to stat specials file")); fclose(specials_file); unlink(specials_lock_name); free(specials_file_name); @@ -275,7 +287,7 @@ main(int argc, char *argv[]) if (fputs("version=1\n", specials_file) < 0 || fputs("type major minor name\n", specials_file) < 0) { - _err(_("Failed to write specials file")); + _errno(_("Failed to write specials file")); fclose(specials_file); unlink(specials_lock_name); free(specials_file_name); @@ -286,7 +298,7 @@ main(int argc, char *argv[]) if (fprintf(specials_file, "%c %8ld %8ld %s\n", type, major, minor, name) < 0) { - _err(_("Failed to write specials file")); + _errno(_("Failed to write specials file")); fclose(specials_file); unlink(specials_lock_name); free(specials_file_name); |