aboutsummaryrefslogtreecommitdiffstats
path: root/src/scrotty.c
diff options
context:
space:
mode:
authorMattias Andrée <maandree@operamail.com>2014-10-27 14:03:48 +0100
committerMattias Andrée <maandree@operamail.com>2014-10-27 14:03:48 +0100
commit9d8a3138eedde4653dda098b8378b2f03ac56340 (patch)
treed2a5014ac7be7e3aa620b289959db6c387087ea8 /src/scrotty.c
parenttypo + deps (diff)
downloadscrotty-9d8a3138eedde4653dda098b8378b2f03ac56340.tar.gz
scrotty-9d8a3138eedde4653dda098b8378b2f03ac56340.tar.bz2
scrotty-9d8a3138eedde4653dda098b8378b2f03ac56340.tar.xz
most of the commnad line stuff
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to 'src/scrotty.c')
-rw-r--r--src/scrotty.c148
1 files changed, 143 insertions, 5 deletions
diff --git a/src/scrotty.c b/src/scrotty.c
index 37e3c1b..8cb3dc7 100644
--- a/src/scrotty.c
+++ b/src/scrotty.c
@@ -15,6 +15,14 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#ifndef PROGRAM_NAME
+# define PROGRAM_NAME "scrotty"
+#endif
+#ifndef PROGRAM_VERSION
+# define PROGRAM_VERSION "1.0"
+#endif
+
+
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
@@ -67,6 +75,12 @@ static const char* inttable[] =
*/
static const char* execname;
+/**
+ * Arguments for `convert`,
+ * the output file should be printed into `convert_args[2]`.
+ */
+static char** convert_args;
+
/**
* Create an PNM-file that is sent to `convert` for convertion to a compressed format
@@ -178,7 +192,8 @@ static int save(const char* fbpath, const char* imgpath, int fbno, long width, l
close(pipe_rw[0]);
}
/* Exec. `convert` to convert the PNM-image we create to a compressed image. */
- execlp("convert", "convert", DEVDIR "/stdin", imgpath, NULL);
+ sprintf(convert_args[2], "%s", imgpath);
+ execvp("convert", convert_args);
perror(execname);
exit(1);
}
@@ -282,8 +297,96 @@ static int save_fb(int fbno)
}
+#define p(...) if (printf(__VA_ARGS__) < 0) return -1;
+
+
+/**
+ * Print usage information
+ *
+ * @return Zero on success, -1 on error
+ */
+static int print_help(void)
+{
+ p("SYNOPSIS\n");
+ p("\t%s [options...] [filename-pattern] [-- options-for-convert...]\n", execname);
+ p("\n");
+ p("OPTIONS\n");
+ p("\t--help Print usage information.\n");
+ p("\t--version Print program name and version.\n");
+ p("\t--copyright Print copyright information.\n");
+ p("\t--exec CMD Command to run for each saved image.\n");
+ p("\n");
+ p("SPECIAL STRINGS\n");
+ p("\tBoth the --exec and filename-pattern parameters can take format specifiers\n");
+ p("\tthat are expanded by scrotty when encountered. There are two types of format\n");
+ p("\tspecifier. Characters preceded by a '%%' are interpretted by strftime(2).\n");
+ p("\tSee `man strftime` for examples. These options may be used to refer to the\n");
+ p("\tcurrent date and time. The second kind are internal to scrotty and are prefixed\n");
+ p("\tby '$'. The following specifiers are recognised:\n");
+ p("\n");
+ p("\t\n");
+ p("\t$i framebuffer index\n");
+ p("\t$f image filename/pathname (ignored when used in filename-pattern)\n");
+ p("\t$n image filename (ignored when used in filename-pattern)\n");
+ p("\t$p image width multiplied by image height\n");
+ p("\t$w image width\n");
+ p("\t$h image height\n");
+ p("\t$$ expands to a literal '$'\n");
+ p("\t\\n expands to a new line\n");
+ p("\t\\\\ expands to a literal '\\'\n");
+ p("\t\\ expands to a literal ' ' (the string is a backslash followed by a space)\n");
+ p("\n");
+ p("\tA space that is not prefixed by a backslash in --exec is interpreted as an\n");
+ p("\targument delimiter. This is the case even at the beginning and end of the\n");
+ p("\tstring and if the a space was the previous character in the string.\n");
+ p("\n");
+ return 0;
+}
+
+
+/**
+ * Print program name and version
+ *
+ * @return Zero on success, -1 on error
+ */
+static int print_version(void)
+{
+ p("%s %s\n", PROGRAM_NAME, PROGRAM_VERSION);
+ return 0;
+}
+
+
+/**
+ * Print copyright information
+ *
+ * @return Zero on success, -1 on error
+ */
+static int print_copyright(void)
+{
+ p("scrotty -- Screenshot program for Linux's TTY\n");
+ p("Copyright (C) 2014 Mattias Andrée (maandree@member.fsf.org)\n");
+ p("\n");
+ p("This program is free software: you can redistribute it and/or modify\n");
+ p("it under the terms of the GNU General Public License as published by\n");
+ p("the Free Software Foundation, either version 3 of the License, or\n");
+ p("(at your option) any later version.\n");
+ p("\n");
+ p("This program is distributed in the hope that it will be useful,\n");
+ p("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
+ p("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n");
+ p("GNU General Public License for more details.\n");
+ p("\n");
+ p("You should have received a copy of the GNU General Public License\n");
+ p("along with this program. If not, see <http://www.gnu.org/licenses/>.\n");
+ return 0;
+}
+
+
+#undef p
+
+
/**
- * Take a screenshow of all framebuffers
+ * Take a screenshot of all framebuffers
*
* @param argc The number of elements in `argv`
* @param argv Command line arguments
@@ -291,12 +394,47 @@ static int save_fb(int fbno)
*/
int main(int argc, char* argv[])
{
- int fbno, r;
-
- (void) argc;
+ int fbno, r, i, dash = argc, exec = -1, help = 0, version = 0, copyright = 0, filepattern = -1;
+ static char convert_args_2[PATH_MAX];
execname = *argv;
+ /* Parse command line. */
+ for (i = 1; i < argc; i++)
+ {
+ if (!strcmp(argv[i], "--help")) help = 1;
+ else if (!strcmp(argv[i], "--version")) version = 1;
+ else if (!strcmp(argv[i], "--copyright")) copyright = 1;
+ else if (!strcmp(argv[i], "--exec")) exec = ++i; /* TODO use this */
+ else if (!strcmp(argv[i], "--"))
+ {
+ dash = i + 1;
+ break;
+ }
+ else if ((argv[i][0] == '-') || (filepattern != -1))
+ return fprintf(stderr, "Unrecognised option. Type `%s --help` for help.\n", execname), 1;
+ else
+ filepattern = i; /* TODO use this */
+ }
+
+ /* Check that --exec is valid. */
+ if (exec == argc)
+ return fprintf(stderr, "--exec has no argument. Type `%s --help` for help.\n", execname), 1;
+
+ /* Was --help, --version or --copyright used? */
+ if (help) return -(print_help());
+ if (version) return -(print_version());
+ if (copyright) return -(print_copyright());
+
+ /* Create arguments for `convert`. */
+ convert_args = alloca((4 + (argc - dash)) * sizeof(char*));
+ convert_args[0] = "convert";
+ convert_args[1] = DEVDIR "/stdin";
+ convert_args[2] = convert_args_2;
+ for (i = dash; i < argc; i++)
+ convert_args[i - dash + 2] = argv[i];
+ convert_args[3 + (argc - dash)] = NULL;
+
/* Take a screenshot of each framebuffer. */
for (fbno = 0;; fbno++)
{