jcgruenhage/void-packages
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

xbps-digest: accept any number of arbitrary files in argv.

Browse source 
--HG--
extra : convert_revision : 42a96b8435a2508a06b48f327f25dc97e16db233
This commit is contained in:
Juan RP 2008-10-29 18:42:23 +01:00
parent 5803db23a3
commit de67397983
1 changed files with 24 additions and 21 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

45
utils/xbps-digest.c
View file

@ -39,6 +39,7 @@
#include <string.h>
#include <assert.h>
#include <inttypes.h>
#include <libgen.h>
typedef uint8_t sha2_byte; /* Exactly 1 byte */
typedef uint32_t sha2_word32; /* Exactly 4 bytes */
@ -414,7 +415,7 @@ SHA256_End(SHA256_CTX *ctx, uint8_t *buffer)
static void
usage(void)
{
fprintf(stderr, "usage: xbps-digest <file>\n");
fprintf(stderr, "usage: xbps-digest <file> <file1+N> ...\n");
exit(1);
}
@ -424,30 +425,32 @@ main(int argc, char **argv)
SHA256_CTX ctx;
uint8_t buffer[BUFSIZ * 20], *digest;
ssize_t bytes;
int fd;
if (argc != 2)
int i, fd;
if (argc < 2)
usage();
if ((fd = open(argv[1], O_RDONLY)) == -1) {
printf("xbps-digest: cannot open %s (%s)\n", argv[1],
strerror(errno));
exit(1);
}
for (i = 1; i < argc; i++) {
if ((fd = open(argv[i], O_RDONLY)) == -1) {
printf("xbps-digest: cannot open %s (%s)\n", argv[i],
strerror(errno));
exit(1);
}
digest = malloc(SHA256_DIGEST_LENGTH * 2 + 1);
if (digest == NULL) {
printf("xbps-digest: malloc failed (%s)\n", strerror(errno));
exit(1);
}
digest = malloc(SHA256_DIGEST_LENGTH * 2 + 1);
if (digest == NULL) {
printf("xbps-digest: malloc failed (%s)\n", strerror(errno));
exit(1);
}
SHA256_Init(&ctx);
while ((bytes = read(fd, buffer, sizeof(buffer))) > 0)
SHA256_Update(&ctx, buffer, (size_t)bytes);
printf("%s\n", SHA256_End(&ctx, digest));
free(digest);
close(fd);
SHA256_Init(&ctx);
while ((bytes = read(fd, buffer, sizeof(buffer))) > 0)
SHA256_Update(&ctx, buffer, (size_t)bytes);
printf("%s\n", SHA256_End(&ctx, digest));
free(digest);
close(fd);
}
exit(0);
}