diff options
author | 2015-09-04 09:25:34 +0200 | |
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committer | 2015-09-04 09:25:34 +0200 | |
commit | 3baeb11a8fbcfcdbc31976d421f17b85503b3ecd (patch) | |
tree | 04891d88c1127148f1b390b5a24414e85b270aee /moon-abe/pbc-0.5.14/misc/utils.c | |
parent | 67c5b73910f5fc437429c356978081b252a59480 (diff) |
init attribute-based encryption
Change-Id: Iba1a3d722110abf747a0fba366f3ebc911d25b25
Diffstat (limited to 'moon-abe/pbc-0.5.14/misc/utils.c')
-rw-r--r-- | moon-abe/pbc-0.5.14/misc/utils.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/moon-abe/pbc-0.5.14/misc/utils.c b/moon-abe/pbc-0.5.14/misc/utils.c new file mode 100644 index 00000000..1a808256 --- /dev/null +++ b/moon-abe/pbc-0.5.14/misc/utils.c @@ -0,0 +1,101 @@ +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> // for intptr_t +#include <gmp.h> + +#include "pbc_utils.h" +#include "pbc_field.h" + +static int pbc_msg_to_stderr = 1; + +int pbc_set_msg_to_stderr(int i) { + return pbc_msg_to_stderr = i; +} + +static int out(const char *format, ...) { + if (!pbc_msg_to_stderr) return 0; + va_list params; + + va_start(params, format); + int res = vfprintf(stderr, format, params); + va_end(params); + return res; +} + +static void print_warning(void) { + static int first = 1; + if (first) { + out("*** PBC asserts enabled: potential performance penalties ***\n"); + first = 0; + } +} + +void pbc_assert(int expr, char *msg, const char *func) { + print_warning(); + if (!expr) { + out("PBC assert failed: %s(): %s\n", func, msg); + abort(); + } +} + +void pbc_assert_match2(element_ptr a, element_ptr b, const char *func) { + print_warning(); + if (a->field != b->field) { + out("PBC assert failed: %s(): field mismatch\n", func); + abort(); + } +} + +void pbc_assert_match3(element_ptr a, element_ptr b, element_ptr c, + const char *func) { + print_warning(); + if (a->field != b->field) { + out("PBC assert failed: %s(): first two args field mismatch\n", func); + abort(); + } + if (b->field != c->field) { + out("PBC assert failed: %s(): last two args field mismatch\n", func); + abort(); + } +} + +// Print at most the first 1024 bytes of an error message. +static void report(const char *prefix, const char *err, va_list params) { + char msg[1024]; + element_vsnprintf(msg, sizeof(msg), err, params); + out("%s%s\n", prefix, msg); +} + +void pbc_die(const char *err, ...) { + va_list params; + + va_start(params, err); + report("fatal: ", err, params); + va_end(params); + exit(128); +} + +void pbc_info(const char *err, ...) { + va_list params; + + va_start(params, err); + report("", err, params); + va_end(params); +} + +void pbc_warn(const char *err, ...) { + va_list params; + + va_start(params, err); + report("warning: ", err, params); + va_end(params); +} + +void pbc_error(const char *err, ...) { + va_list params; + + va_start(params, err); + report("error: ", err, params); + va_end(params); +} |