JosephFerano/basicterm
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Progress I guess

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This commit is contained in:
Joseph Ferano 2023-11-15 17:31:59 +07:00
parent 2b3735b90b
commit f15014d84e
2 changed files with 62 additions and 36 deletions
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3
Makefile
View File

@ -1,6 +1,7 @@
P=bt P=bt
CC=gcc CC=gcc
CFLAGS=-g -Wall -Wextra -pedantic -O0 CFLAGS=-fsanitize=address -g -Wall -Wextra -pedantic -O0
# CFLAGS=-Wall -Wextra -pedantic -O2
LDLIBS=-lSDL2 -lSDL2_ttf LDLIBS=-lSDL2 -lSDL2_ttf
RM=rm -vf RM=rm -vf

87
bt.c
View File

@ -59,24 +59,31 @@ die(const char *errstr, ...)
exit(1); exit(1);
} }
void spawn(FileDescriptors *fds) { void spawn(FileDescriptors *fds) {
openpty(&fds->parent, &fds->child, NULL, NULL, NULL); if (openpty(&fds->parent, &fds->child, NULL, NULL, NULL)) {
fprintf(stderr, "openpty() failed: %s\n", strerror(errno));
exit(1);
}
// pid_t p = forkpty(&fds->parent, NULL, NULL, NULL); // pid_t p = forkpty(&fds->parent, NULL, NULL, NULL);
// int _stdout = dup(STDOUT_FILENO);
// dup2(fds->child, STDOUT_FILENO);
pid_t p = fork(); pid_t p = fork();
if (p == 0) { if (p == 0) {
close(fds->parent);
setsid(); setsid();
if (ioctl(fds->child, TIOCSCTTY, NULL)) if (ioctl(fds->child, TIOCSCTTY, NULL))
die("ioctl TIOCSCTTY failed: %s\n", strerror(errno)); die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
dup2(fds->child, 0); dup2(fds->child, STDIN_FILENO);
dup2(fds->child, 1); dup2(fds->child, STDOUT_FILENO);
dup2(fds->child, 2); dup2(fds->child, STDERR_FILENO);
if (fds->child > 2) {
close(fds->child);
}
close(fds->parent);
close(fds->child);
// execle("/usr/bin/zsh", "-/usr/bin/zsh", (char *)NULL, (char *[]){ "TERM=dumb", NULL }); // execle("/usr/bin/zsh", "-/usr/bin/zsh", (char *)NULL, (char *[]){ "TERM=dumb", NULL });
execle("/usr/bin/dash", "-/usr/bin/dash", (char *)NULL, (char *)NULL); // execle("/usr/bin/dash", "-/usr/bin/dash", (char *)NULL, (char *)NULL);
// execle("/usr/bin/bash", "-/usr/bin/bash", (char *)NULL, (char *)NULL);
char **args = NULL;
execvp("/usr/bin/bash", args);
// execvp("/usr/bin/dash", args);
} else { } else {
fds->child = p; fds->child = p;
close(fds->child); close(fds->child);
@ -115,25 +122,26 @@ int read_pty(FileDescriptors *fds, Scrollback *sb) {
// printf("%c\n", readbuf[i]); // printf("%c\n", readbuf[i]);
} }
// int read length = // int read length =
printf("Reading %ld\n", nread); // printf("Reading %ld\n", nread);
// if ((char)readbuf[0] == '\b') { // if ((char)readbuf[0] == '\b') {
// if (readbuf[0] == 'l') { // if (readbuf[0] == 'l') {
for (int i = 0; i < nread; i++) { for (int i = 0; i < nread; i++) {
if (readbuf[i] == '\n') { // if (readbuf[i] == '\n') {
// printf("*"); // // printf("*");
} else if (readbuf[i] == '\r') { if (readbuf[i] == '\r') {
// printf("@"); // printf("<CR>");
} else { readbuf[i] = '\n';
printf("%c\n", readbuf[i]);
// printf("%c - %d\n", readbuf[i], i);
} }
// printf("%d\n", readbuf[i]);
// printf("%c - %d\n", readbuf[i], i);
// }
// fflush(stdout); // fflush(stdout);
} }
// printf("\n"); // printf("\n");
// } // }
if (readbuf[nread - 1] == '\r') { // if (readbuf[nread - 1] == '\r') {
// readbuf[nread - 1] = '\n'; // readbuf[nread - 1] = '\n';
} // }
// TODO: This is bad, what if we read all 256 bytes // TODO: This is bad, what if we read all 256 bytes
// printf("Read %li bytes, length = %d\n", nread, sb->length); // printf("Read %li bytes, length = %d\n", nread, sb->length);
// printf("readbuf:\n %s\n", readbuf); // printf("readbuf:\n %s\n", readbuf);
@ -142,9 +150,15 @@ int read_pty(FileDescriptors *fds, Scrollback *sb) {
// strcat(sb->buf, readbuf); // strcat(sb->buf, readbuf);
memcpy(sb->buf + sb->length, readbuf, nread); memcpy(sb->buf + sb->length, readbuf, nread);
sb->length += nread; sb->length += nread;
// sb->buf[sb->length] = '\0'; sb->buf[sb->length+1] = '\0';
// printf("After Scrollback:\n%s\n", sb->buf); // printf("After Scrollback:\n%s\n", sb->buf);
// printf("Read Buf:\n %s\n", readbuf);
// printf("Scrollback:\n %s\n", sb->buf); // printf("Scrollback:\n %s\n", sb->buf);
for (int i = 0; i < sb->length; i++) {
printf("%d ", sb->buf[i]);
fflush(stdout);
}
printf("\n");
// printf("------------------\n"); // printf("------------------\n");
return nread; return nread;
} }
@ -171,21 +185,27 @@ void render_scrollback(Context* ctx) {
// } else if (sb.buf[c] == '\0' || ncol >= col_max) { // } else if (sb.buf[c] == '\0' || ncol >= col_max) {
// } else if (sb.buf[c] == '\0' || ncol >= col_max) { // } else if (sb.buf[c] == '\0' || ncol >= col_max) {
// if (sb.buf[c] == '\r' || sb.buf[c] == '\0' || ncol >= col_max) { // if (sb.buf[c] == '\r' || sb.buf[c] == '\0' || ncol >= col_max) {
if (sb.buf[c] == '\r' || c == sb.length - 1 || ncol >= col_max) { if (sb.buf[c] == '\n' && ncol > 0 || c == sb.length - 1) {
// } else if (sb.buf[c] == '\n' || sb.buf[c] == '\0') { // } else if (sb.buf[c] == '\n' || sb.buf[c] == '\0') {
// row_buf[ncol] = '\0'; // ncol++;
row_buf[ncol] = '\0';
// TODO: Render new line or something? // TODO: Render new line or something?
// Vector2 pos = { row_posx, nrow * row_height + sb.ypos }; // Vector2 pos = { row_posx, nrow * row_height + sb.ypos };
// DrawTextEx(*fontDefault, row_buf, pos, fontsize, 0, current_color); // DrawTextEx(*fontDefault, row_buf, pos, fontsize, 0, current_color);
SDL_Surface* surface = SDL_Surface* surface =
TTF_RenderText_Blended(ctx->font, row_buf, WHITE); TTF_RenderText_Blended(ctx->font, row_buf, WHITE);
if (surface == NULL) {
fprintf(stderr, "DONT PRINT THERES AN ERROR");
return;
}
// now you can convert it into a texture // now you can convert it into a texture
SDL_Texture* texture = SDL_CreateTextureFromSurface(ctx->renderer, surface); SDL_Texture* texture = SDL_CreateTextureFromSurface(ctx->renderer, surface);
SDL_Rect rect; SDL_Rect rect;
rect.x = 0; rect.x = 0;
rect.y = nrow * 20; rect.y = nrow * 20;
rect.w = surface->w; rect.w = surface->w;
rect.h = surface->h; rect.h = surface->h;
@ -342,16 +362,19 @@ int main(void) {
if (key == SDL_SCANCODE_F1) { if (key == SDL_SCANCODE_F1) {
printf("Debug Printing Scrollback Length %d:\n", sb.length); printf("Debug Printing Scrollback Length %d:\n", sb.length);
for (int i = 0; i < sb.length; i++) { for (int i = 0; i < sb.length; i++) {
if (sb.buf[i] == '\r') { // if (sb.buf[i] == '\r') {
// printf("\r"); // // printf("\r");
} else if (sb.buf[i] == ' ') { // } else if (sb.buf[i] == ' ') {
// printf("_"); // // printf("_");
} else { // } else {
// printf("%c - %d\n", readbuf[i], i); // // printf("%c - %d\n", readbuf[i], i);
} // }
printf("%d-%c\n", i, sb.buf[i]); // printf("(%d-%c)", i, sb.buf[i]);
// fflush(stdout);
} }
printf("%s\n", sb.buf);
fflush(stdout);
// printf("\n");
printf("%p", sb.buf);
printf("\n"); printf("\n");
printf("============\n"); printf("============\n");
} else if ((key >= 32) && (key <= 125)) { } else if ((key >= 32) && (key <= 125)) {
@ -426,8 +449,10 @@ int main(void) {
new_read = true; new_read = true;
} }
if (nread > 0) {
render_scrollback(&ctx); render_scrollback(&ctx);
} }
}
free(sb.buf); free(sb.buf);
free(ctx.readline); free(ctx.readline);