102 lines
2.7 KiB
Diff
102 lines
2.7 KiB
Diff
--- mblaze-1.1/mmime.c 2021-01-14 10:45:22.000000000 -0500
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+++ mblaze-1.1f/mmime.c 2021-06-12 20:35:09.994308179 -0400
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@@ -134,6 +134,68 @@
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return linelen;
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}
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+size_t
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+gen_flowd(uint8_t *s, off_t size, size_t maxlinelen, size_t linelen)
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+{
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+ off_t i;
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+ int header = linelen > 0;
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+
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+ for (i = 0; i < size; i++) {
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+ // inspect utf8 sequence to not wrap in between multibyte
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+ int mb;
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+ if ((s[i] & 0x80) == 0) mb = 3;
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+ else if ((s[i] & 0xc0) == 0x80) mb = 3;
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+ else if ((s[i] & 0xe0) == 0xc0) mb = 6;
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+ else if ((s[i] & 0xf0) == 0xe0) mb = 9;
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+ else if ((s[i] & 0xf8) == 0xf0) mb = 12;
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+ else mb = 3;
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+
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+ if (linelen >= maxlinelen-mb-!!header) {
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+ linelen = 0;
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+ if (header) {
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+ printf("\n");
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+ } else {
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+ puts(" ");
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+ }
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+ }
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+
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+ if ((s[i] > 126) ||
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+ (linelen == 0 &&
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+ (strncmp((char *)s, "From ", 5) == 0 ||
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+ (s[i] == '.' && i+1 < size &&
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+ (s[i+1] == '\n' || s[i+1] == '\r'))))) {
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+ putc_unlocked(s[i], stdout);
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+ linelen ++;
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+ } else if (header &&
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+ (s[i] == '\n' || s[i] == '\t' || s[i] == '_')) {
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+ putc_unlocked(s[i], stdout);
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+ linelen ++;
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+ } else if (header && s[i] == ' ') {
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+ putc_unlocked('_', stdout);
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+ linelen++;
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+ } else if (s[i] < 33 && s[i] != '\n') {
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+ if ((s[i] == ' ' || s[i] == '\t') &&
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+ i+1 < size &&
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+ (s[i+1] != '\n' && s[i+1] != '\r')) {
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+ putc_unlocked(s[i], stdout);
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+ linelen++;
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+ } else {
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+ putc_unlocked(s[i], stdout);
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+ linelen++;
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+ }
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+ } else if (s[i] == '\n') {
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+ putc_unlocked('\n', stdout);
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+ linelen = 0;
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+ } else {
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+ putc_unlocked(s[i], stdout);
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+ linelen++;
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+ }
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+ }
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+ if (linelen > 0 && !header)
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+ puts("\n");
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+ return linelen;
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+}
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+
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static const char *
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basenam(const char *s)
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{
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@@ -401,8 +463,8 @@
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inheader = 0;
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printf("MIME-Version: 1.0\n");
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if (rflag) {
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- printf("Content-Type: text/plain; charset=UTF-8\n");
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- printf("Content-Transfer-Encoding: quoted-printable\n\n");
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+ printf("Content-Type: text/plain; charset=US-ASCII; format=flowed\n");
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+ printf("Content-Transfer-Encoding: 7bit\n\n");
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} else {
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printf("Content-Type: %s; boundary=\"%s\"\n", tflag, sep);
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@@ -435,14 +497,14 @@
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if (!rflag && !intext) {
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printf("\n--%s\n", sep);
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- printf("Content-Type: text/plain; charset=UTF-8\n");
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+ printf("Content-Type: text/plain; charset=US-ASCII; format=flowed\n");
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printf("Content-Disposition: inline\n");
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- printf("Content-Transfer-Encoding: quoted-printable\n\n");
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+ printf("Content-Transfer-Encoding: 7bit\n\n");
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intext = 1;
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}
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- gen_qp((uint8_t *)line, strlen(line), 78, 0);
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+ gen_flowd((uint8_t *)line, strlen(line), 78, 0);
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}
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if (!rflag && !inheader)
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printf("\n--%s--\n", sep);
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printf 'Bcc: \n'
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