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-rw-r--r--src/utils.c327
1 files changed, 158 insertions, 169 deletions
diff --git a/src/utils.c b/src/utils.c
index 7183b66..b74bc8c 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -31,218 +31,207 @@ static char *feh_user_name = NULL;
static char *feh_tmp_dir = NULL;
/* eprintf: print error message and exit */
-void
-eprintf(char *fmt, ...)
+void eprintf(char *fmt, ...)
{
- va_list args;
+ va_list args;
- fflush(stdout);
- fprintf(stderr, "%s ERROR: ", PACKAGE);
+ fflush(stdout);
+ fprintf(stderr, "%s ERROR: ", PACKAGE);
- va_start(args, fmt);
- vfprintf(stderr, fmt, args);
- va_end(args);
+ va_start(args, fmt);
+ vfprintf(stderr, fmt, args);
+ va_end(args);
- if (fmt[0] != '\0' && fmt[strlen(fmt) - 1] == ':')
- fprintf(stderr, " %s", strerror(errno));
- fprintf(stderr, "\n");
- exit(2);
+ if (fmt[0] != '\0' && fmt[strlen(fmt) - 1] == ':')
+ fprintf(stderr, " %s", strerror(errno));
+ fprintf(stderr, "\n");
+ exit(2);
}
/* weprintf: print warning message and continue */
-void
-weprintf(char *fmt, ...)
+void weprintf(char *fmt, ...)
{
- va_list args;
+ va_list args;
- fflush(stdout);
- fprintf(stderr, "%s WARNING: ", PACKAGE);
+ fflush(stdout);
+ fprintf(stderr, "%s WARNING: ", PACKAGE);
- va_start(args, fmt);
- vfprintf(stderr, fmt, args);
- va_end(args);
+ va_start(args, fmt);
+ vfprintf(stderr, fmt, args);
+ va_end(args);
- if (fmt[0] != '\0' && fmt[strlen(fmt) - 1] == ':')
- fprintf(stderr, " %s", strerror(errno));
- fprintf(stderr, "\n");
+ if (fmt[0] != '\0' && fmt[strlen(fmt) - 1] == ':')
+ fprintf(stderr, " %s", strerror(errno));
+ fprintf(stderr, "\n");
}
/* estrdup: duplicate a string, report if error */
-char *
-_estrdup(char *s)
+char *_estrdup(char *s)
{
- char *t;
+ char *t;
- if (!s)
- return NULL;
+ if (!s)
+ return NULL;
- t = (char *) malloc(strlen(s) + 1);
- if (t == NULL)
- eprintf("estrdup(\"%.20s\") failed:", s);
- strcpy(t, s);
- return t;
+ t = (char *) malloc(strlen(s) + 1);
+ if (t == NULL)
+ eprintf("estrdup(\"%.20s\") failed:", s);
+ strcpy(t, s);
+ return t;
}
/* emalloc: malloc and report if error */
-void *
-_emalloc(size_t n)
+void *_emalloc(size_t n)
{
- void *p;
+ void *p;
- p = malloc(n);
- if (p == NULL)
- eprintf("malloc of %u bytes failed:", n);
- return p;
+ p = malloc(n);
+ if (p == NULL)
+ eprintf("malloc of %u bytes failed:", n);
+ return p;
}
/* erealloc: realloc and report if error */
-void *
-_erealloc(void *ptr, size_t n)
+void *_erealloc(void *ptr, size_t n)
{
- void *p;
+ void *p;
- p = realloc(ptr, n);
- if (p == NULL)
- eprintf("realloc of %p by %u bytes failed:", ptr, n);
- return p;
+ p = realloc(ptr, n);
+ if (p == NULL)
+ eprintf("realloc of %p by %u bytes failed:", ptr, n);
+ return p;
}
-char *
-estrjoin(const char *separator, ...)
+char *estrjoin(const char *separator, ...)
{
- char *string, *s;
- va_list args;
- int len;
- int separator_len;
-
- if (separator == NULL)
- separator = "";
-
- separator_len = strlen(separator);
- va_start(args, separator);
- s = va_arg(args, char *);
-
- if (s)
- {
- len = strlen(s);
- s = va_arg(args, char *);
-
- while (s)
- {
- len += separator_len + strlen(s);
- s = va_arg(args, char *);
- }
- va_end(args);
- string = malloc(sizeof(char) * (len + 1));
-
- *string = 0;
- va_start(args, separator);
- s = va_arg(args, char *);
-
- strcat(string, s);
- s = va_arg(args, char *);
-
- while (s)
- {
- strcat(string, separator);
- strcat(string, s);
- s = va_arg(args, char *);
- }
- }
- else
- string = estrdup("");
- va_end(args);
-
- return string;
+ char *string, *s;
+ va_list args;
+ int len;
+ int separator_len;
+
+ if (separator == NULL)
+ separator = "";
+
+ separator_len = strlen(separator);
+ va_start(args, separator);
+ s = va_arg(args, char *);
+
+ if (s) {
+ len = strlen(s);
+ s = va_arg(args, char *);
+
+ while (s) {
+ len += separator_len + strlen(s);
+ s = va_arg(args, char *);
+ }
+ va_end(args);
+ string = malloc(sizeof(char) * (len + 1));
+
+ *string = 0;
+ va_start(args, separator);
+ s = va_arg(args, char *);
+
+ strcat(string, s);
+ s = va_arg(args, char *);
+
+ while (s) {
+ strcat(string, separator);
+ strcat(string, s);
+ s = va_arg(args, char *);
+ }
+ } else
+ string = estrdup("");
+ va_end(args);
+
+ return string;
}
-char *
-stroflen(char c, int l)
+char *stroflen(char c, int l)
{
- static char buf[1024];
- int i = 0;
-
- buf[0] = '\0';
- while (l--)
- buf[i++] = c;
- buf[i] = '\0';
- return buf;
+ static char buf[1024];
+ int i = 0;
+
+ buf[0] = '\0';
+ while (l--)
+ buf[i++] = c;
+ buf[i] = '\0';
+ return buf;
}
/* free the result please */
char *feh_unique_filename(char *path, char *basename)
{
- char *tmpname;
- char num[10];
- char cppid[10];
- static long int i = 1;
- struct stat st;
- pid_t ppid;
-
- D_ENTER(4);
- /* Massive paranoia ;) */
- if (i > 999998)
- i = 1;
-
- ppid = getpid();
- snprintf(cppid, sizeof(cppid), "%06ld", (long)ppid);
-
- /* make sure file doesn't exist */
- do
- {
- snprintf(num, sizeof(num), "%06ld", i++);
- tmpname =
- estrjoin("", path, "feh_", cppid, "_", num, "_",
- basename, NULL);
- }
- while (stat(tmpname, &st) == 0);
- D_RETURN(4, tmpname);
+ char *tmpname;
+ char num[10];
+ char cppid[10];
+ static long int i = 1;
+ struct stat st;
+ pid_t ppid;
+
+ D_ENTER(4);
+ /* Massive paranoia ;) */
+ if (i > 999998)
+ i = 1;
+
+ ppid = getpid();
+ snprintf(cppid, sizeof(cppid), "%06ld", (long) ppid);
+
+ /* make sure file doesn't exist */
+ do {
+ snprintf(num, sizeof(num), "%06ld", i++);
+ tmpname = estrjoin("", path, "feh_", cppid, "_", num, "_", basename, NULL);
+ }
+ while (stat(tmpname, &st) == 0);
+ D_RETURN(4, tmpname);
}
/* reads file into a string, but limits o 4095 chars and ensures a \0 */
-char *ereadfile(char *path) {
- char buffer[4096];
- FILE *fp;
- int count;
-
- fp = fopen(path, "r");
- if (!fp)
- return NULL;
-
- count = fread(buffer, sizeof(char), sizeof(buffer) - 1, fp);
- if (buffer[count - 1] == '\n')
- buffer[count - 1] = '\0';
- else
- buffer[count] = '\0';
-
- fclose(fp);
-
- return estrdup(buffer);
-}
+char *ereadfile(char *path)
+{
+ char buffer[4096];
+ FILE *fp;
+ int count;
+
+ fp = fopen(path, "r");
+ if (!fp)
+ return NULL;
+
+ count = fread(buffer, sizeof(char), sizeof(buffer) - 1, fp);
+ if (buffer[count - 1] == '\n')
+ buffer[count - 1] = '\0';
+ else
+ buffer[count] = '\0';
-char *feh_get_tmp_dir(void) {
- char *tmp;
- if (feh_tmp_dir)
- return feh_tmp_dir;
- tmp = getenv("TMPDIR");
- if (!tmp)
- tmp = getenv("TMP");
- if (!tmp)
- tmp = getenv("TEMP");
- if (!tmp)
- tmp = "/tmp";
- feh_tmp_dir = estrdup(tmp);
- return feh_tmp_dir;
+ fclose(fp);
+
+ return estrdup(buffer);
}
-char *feh_get_user_name(void) {
- struct passwd *pw = NULL;
+char *feh_get_tmp_dir(void)
+{
+ char *tmp;
+ if (feh_tmp_dir)
+ return feh_tmp_dir;
+ tmp = getenv("TMPDIR");
+ if (!tmp)
+ tmp = getenv("TMP");
+ if (!tmp)
+ tmp = getenv("TEMP");
+ if (!tmp)
+ tmp = "/tmp";
+ feh_tmp_dir = estrdup(tmp);
+ return feh_tmp_dir;
+}
- if (feh_user_name)
- return feh_user_name;
- setpwent ();
- pw = getpwuid (getuid ());
- endpwent ();
- feh_user_name = estrdup(pw->pw_name);
- return feh_user_name;
+char *feh_get_user_name(void)
+{
+ struct passwd *pw = NULL;
+
+ if (feh_user_name)
+ return feh_user_name;
+ setpwent();
+ pw = getpwuid(getuid());
+ endpwent();
+ feh_user_name = estrdup(pw->pw_name);
+ return feh_user_name;
}
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